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SMSC USB2502 manuale d’uso - BKManuals
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SMSC USB2502 manuale d’uso

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Un buon manuale d’uso

Le regole impongono al rivenditore l'obbligo di fornire all'acquirente, insieme alle merci, il manuale d’uso SMSC USB2502. La mancanza del manuale d’uso o le informazioni errate fornite al consumatore sono la base di una denuncia in caso di inosservanza del dispositivo con il contratto. Secondo la legge, l’inclusione del manuale d’uso in una forma diversa da quella cartacea è permessa, che viene spesso utilizzato recentemente, includendo una forma grafica o elettronica SMSC USB2502 o video didattici per gli utenti. La condizione è il suo carattere leggibile e comprensibile.

Che cosa è il manuale d’uso?

La parola deriva dal latino "instructio", cioè organizzare. Così, il manuale d’uso SMSC USB2502 descrive le fasi del procedimento. Lo scopo del manuale d’uso è istruire, facilitare lo avviamento, l'uso di attrezzature o l’esecuzione di determinate azioni. Il manuale è una raccolta di informazioni sull'oggetto/servizio, un suggerimento.

Purtroppo, pochi utenti prendono il tempo di leggere il manuale d’uso, e un buono manuale non solo permette di conoscere una serie di funzionalità aggiuntive del dispositivo acquistato, ma anche evitare la maggioranza dei guasti.

Quindi cosa dovrebbe contenere il manuale perfetto?

Innanzitutto, il manuale d’uso SMSC USB2502 dovrebbe contenere:
- informazioni sui dati tecnici del dispositivo SMSC USB2502
- nome del fabbricante e anno di fabbricazione SMSC USB2502
- istruzioni per l'uso, la regolazione e la manutenzione delle attrezzature SMSC USB2502
- segnaletica di sicurezza e certificati che confermano la conformità con le norme pertinenti

Perché non leggiamo i manuali d’uso?

Generalmente questo è dovuto alla mancanza di tempo e certezza per quanto riguarda la funzionalità specifica delle attrezzature acquistate. Purtroppo, la connessione e l’avvio SMSC USB2502 non sono sufficienti. Questo manuale contiene una serie di linee guida per funzionalità specifiche, la sicurezza, metodi di manutenzione (anche i mezzi che dovrebbero essere usati), eventuali difetti SMSC USB2502 e modi per risolvere i problemi più comuni durante l'uso. Infine, il manuale contiene le coordinate del servizio SMSC in assenza dell'efficacia delle soluzioni proposte. Attualmente, i manuali d’uso sotto forma di animazioni interessanti e video didattici che sono migliori che la brochure suscitano un interesse considerevole. Questo tipo di manuale permette all'utente di visualizzare tutto il video didattico senza saltare le specifiche e complicate descrizioni tecniche SMSC USB2502, come nel caso della versione cartacea.

Perché leggere il manuale d’uso?

Prima di tutto, contiene la risposta sulla struttura, le possibilità del dispositivo SMSC USB2502, l'uso di vari accessori ed una serie di informazioni per sfruttare totalmente tutte le caratteristiche e servizi.

Dopo l'acquisto di successo di attrezzature/dispositivo, prendere un momento per familiarizzare con tutte le parti del manuale d'uso SMSC USB2502. Attualmente, sono preparati con cura e tradotti per essere comprensibili non solo per gli utenti, ma per svolgere la loro funzione di base di informazioni e di aiuto.

Sommario del manuale d’uso

  • Pagina 1

    SMSC USB2502 DA T ASHEET Revision 2.3 (08-27-07) Datasheet PRODUCT FEA TURES USB2502 2-Port USB 2.0 Hub Controller  Integrated USB 2.0 Compatible 2-Port Hub — High-S peed (480Mbits/s), Full-S peed (12Mbits/s) and Low-S peed (1.5Mbits/s) compatible — Full power management with ganged power co ntrol — Detects Bus-Power/Self-Power source and [...]

  • Pagina 2

    ORDER NUMBERS: USB2502-AEZG FOR 36 PIN LEAD-FREE ROHS COMP LIANT QFN PACKAGE; USB 2502-HT FOR 48 PIN LEAD- FREE ROHS COMPLIANT TQFP PACKAGE 2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 2 SMSC USB2502 DA T ASHEET 80 ARKA Y DRIVE, HAUPP AUG E, NY 1 1788 (6 31) 435-6000, F A X (631) 273-3123 Copyright © 20 07 SMSC or its sub sidiar[...]

  • Pagina 3

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 3 Revision 2.3 (08-27-07) DA T ASHEET T able of Content s Chapter 1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 OEM Selectable Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Pagina 4

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 4 SMSC USB2502 DA T ASHEET List of T ables Table 2. 1 2-Port Pin Table for 36-QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 2. 2 2-Port Pin Table for 48-TQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Pagina 5

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 5 Revision 2.3 (08-27-07) DA T ASHEET List of Figures Figure 3.1 2-Port 36-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 3.2 2-Port 48-Pin TQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Pagina 6

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 6 SMSC USB2502 DA T ASHEET Chapter 1 General Description The SMSC 2-Port Hub is fully complian t with th e USB 2.0 S pecification and will attach to a USB host as a Full-S peed Hub or as a Full-/High-S peed Hub. The 2-Port Hub supp orts Low-S peed, Full-S peed, and High-S peed (if oper[...]

  • Pagina 7

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 7 Revision 2.3 (08-27-07) DA T ASHEET Chapter 2 Pin T able 2-Port T able 2.1 2-Port Pin T able for 36-QFN UPSTREAM USB 2.0 INTERF ACE (3 PINS) USBDP0 USBDN0 VBUS_DET 2-PORT USB 2.0 INTERF ACE (10 PINS) USBDP1 USBDN1 USBDP2 USBDN2 GR1/ NON_REM0 GR2/ NON_REM1 PRTPWR_POL RBIAS PRTP WR OCS_N SERIAL P[...]

  • Pagina 8

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 8 SMSC USB2502 DA T ASHEET T abl e 2.2 2-Port Pin T able for 48-TQFP UPSTREAM USB 2.0 INTERF ACE (3 PINS) USBDP0 USBDN0 VBUS_DET 2-PORT USB 2.0 INTERF ACE (10 PINS) USBDP1 USBDN1 USBDP2 USBDN2 GR1/ NON_REM0 GR2/ NON_REM1 PRTPWR_POL RBIAS PRTP WR OCS_N SERIAL PORT INTERF ACE (3 PINS) SD[...]

  • Pagina 9

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 9 Revision 2.3 (08-27-07) DA T ASHEET Chapter 3 Pin Configuration 2-Port Hub Figure 3.1 2-Port 36-Pin QFN Thermal Slug (must be connected to VSS) SMSC USB2502 (Top View QFN-36) Indicates pins on the bottom of the device. VDDA33 1 USBDP0 2 USBDN0 3 VSS 4 USBDN1 5 USBDP1 6 VDDA33 7 USBDP2 8 USBDN2 [...]

  • Pagina 10

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 10 SMSC USB2502 DA T ASHEET Figure 3.2 2-Port 48-Pin TQ FP 9''&5 966 ;7 $/ ;7 $/&/.,1 9''$3// 9''$3// 9'' 966 *5121B5(0 *5121B5(0 6(/)B3:5 3573:5B32/ 3573:5 9''$ $ 7(67[...]

  • Pagina 11

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 1 1 Revision 2.3 (08-27-07) DA T ASHEET Chapter 4 2-Port Hub Block Diagram Figure 4.1 2-Port Bloc k Diagram T able 4.1 2-Port Hub Pin Descript ions NAME SYMBOL T YPE FUNCTION UPSTREAM USB 2.0 INTE RF ACE USB Bus Data USBDN0 USBDP0 IO-U These pins connect to the upstream USB bus data signals. Dete[...]

  • Pagina 12

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 12 SMSC USB2502 DA T ASHEET 2-PORT USB 2.0 HUB INTERF ACE High-S peed USB Data USBDN[2:1] USBDP[2:1] IO-U These pins connect to the downst ream USB peripheral devices attached to the Hub’s ports. USB Power Enable PRTPWR O8 Enables power to USB peripheral device s (downstream). The ac[...]

  • Pagina 13

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 13 Revision 2.3 (08-27-07) DA T ASHEET SERIAL PORT INTERF ACE Serial Data/SMB Data SDA/SMBDA T A IOSD12 (Serial Data)/(SMB Dat a) signal. Serial Clock/SMB Clock & Config Select 0 SCL/SMBCLK/ CFG_SEL0 IOSD12 (Serial Clock)/(SMB Clock) sig nal. This multifunct ion pin is read on the rising edge[...]

  • Pagina 14

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 14 SMSC USB2502 DA T ASHEET Analog T est & Internal 1.8V voltage regulator enable A TEST/ REG_EN AIO This signal is used for testing the analog section of the chip, and to ena ble or disable t he internal 1.8v regulato r . This pin must b e connected to VDDA33 to enable t he intern[...]

  • Pagina 15

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 15 Revision 2.3 (08-27-07) DA T ASHEET IOSD12 Open drain….12mA sink with Sch mitt t rigge r , an d must meet I 2C-Bus Specification V ersion 2.1 requirements. ICLKx XT AL Clock Input OCLKx XT AL Clock Output I-R RBIAS IO-U Defined in USB S pecification. Note: Meets USB 1.1 requirements when ope[...]

  • Pagina 16

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 16 SMSC USB2502 DA T ASHEET Chapter 5 Functional Block Description 5.1 2-Port Hub SMSC’s USB 2.0 2-Port Hub is fully specification co mpliant to the Universal Serial Bus S pecification Revision 2.0 April 27,2000 (12/ 7/2000 and 5/28/2002 Errata). Please re ference Chapter 1 1 (Hub S [...]

  • Pagina 17

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 17 Revision 2.3 (08-27-07) DA T ASHEET 5.1.1.5 High-Speed Disab le Allows an OEM to force the Hub to configure as a Full-S peed device only (i.e. High-S peed not available). This field is set by the OEM using either the SMBus o r EEPROM interface opt ions. 5.1.1.6 EOP Disable During FS operation [...]

  • Pagina 18

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 18 SMSC USB2502 DA T ASHEET When Dynamic Power switching is enab led, the Hub detects the availability of a local power so urce by monitoring the external SELF_PWR pin. If the Hub detects a change in power source availability , the Hub immediately disconnects and removes power from all[...]

  • Pagina 19

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 19 Revision 2.3 (08-27-07) DA T ASHEET 5.2 EEPROM Interface The SMSC Hub can be co nfigured via a 2-wire (I2C) EEPROM. (Please see T able 4.1, "7-Port Hu b Pin Descriptions" for specific details on how to enable the I2C EEPROM option). The Internal state-machine will, (when con figured [...]

  • Pagina 20

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 20 SMSC USB2502 DA T ASHEET 5.2.3.1 EEPROM Offset 1:0(h) - V endor ID 5.2.3.2 EEPROM Offset 3:2(h) - Product ID Config Data Byte 1 6 1 88 0C Configuration data byte #1 f or Hub options. Config Data Byte 2 7 1 90 90 Configuration data byte #2 f or Hub options. Non Removable Device 8 1 0[...]

  • Pagina 21

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 21 Revision 2.3 (08-27-07) DA T ASHEET 5.2.3.3 EEPROM Offset 5:4(h) - Device ID 5.2.3.4 EEPROM Offset 6(h) - CONFIG_BYTE_1 5.2.3.5 EEPROM Offset 7(h) - CONFIG_BYTE_2 BIT NUMBER BIT NAME DESCRIPTION 15:8 DID_MSB Most Significant Byte of the De vice ID. 7:0 DID_LSB Least Significant Byte of the Dev[...]

  • Pagina 22

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 22 SMSC USB2502 DA T ASHEET 5.2.3.6 EEPROM Offset 8(h) - Non-Removable Device 5.2.3.7 EEPROM Offset 9(h) - Port Disable For Self Powered Operation 5.2.3.8 EEPROM Offs et A(h) - Port Disable For Bus Powered Operation 5:4 OC_TIMER Ove rCurrent T imer: Over Current T imer de lay . 00 = 0.[...]

  • Pagina 23

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 23 Revision 2.3 (08-27-07) DA T ASHEET 5.2.3.9 EEPROM Offs et B(h) - Max Power For Self Powered Operation 5.2.3.10 EEPROM Offs et C(h) - Max Power For Bus Powered Operation 5.2.3.1 1 EEPROM Offset D(h) - Hub Controller Max Current For Self Powered Operation BIT NUMBER BIT NAME DESCRIPTION 7:0 MAX[...]

  • Pagina 24

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 24 SMSC USB2502 DA T ASHEET 5.2.3.12 EEPROM Offs et E(h) - Hub Controller Max Current For Bus Powered Operation 5.2.3.13 EEPROM Of fset F(h) - Power-On T ime 5.3 SMBus Slave Interface Instead of loading User-Defi ned Descriptor data from an external EEPROM, th e SMSC Hub can be configu[...]

  • Pagina 25

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 25 Revision 2.3 (08-27-07) DA T ASHEET 5.3.1.1 Byte Protocols When using the Hub SMBus Interface for byte transfers, a write will always consis t of the SMBus Interface Slave Address byt e, followed by the I nternal Address Register b yte, then the d ata byte. The normal read protocol consists of[...]

  • Pagina 26

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 26 SMSC USB2502 DA T ASHEET 5.3.4 S lave Device T ime-Out According to the SMBus S pecification, V1.0 devices in a transfer ca n abort the transf er in progress and release the bus when any single clock low interval exceeds 25ms (T TIMEOUT , MIN ). Devices that have detected thi s cond[...]

  • Pagina 27

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 27 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.1 Register 00h: S t atus/Command (Reset = 0x00) 5.3.9.2 Register 01h: V endor ID (LSB) (Reset = 0x00) 0Ch R/W Max Power (Self) MAXPS 7 6 5 4 3 2 1 0 0Dh R/W Max Power (Bus) MAXPB 7 6 5 4 3 2 1 0 0Eh R/W Hub Controller Max Current (Self) HCMCS 7 6 5 4 3[...]

  • Pagina 28

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 28 SMSC USB2502 DA T ASHEET 5.3.9.3 Register 02h: V endor ID (MSB) (Reset = 0x00 ) 5.3.9.4 Register 03h: Product ID (LSB) (Reset = 0x00) 5.3.9.5 Register 04h: Product ID (MSB) (Reset = 0x00) 5.3.9.6 Register 05h: Device ID (LSB) (Reset = 0x00) 5.3.9.7 Register 06h: Device ID (MSB) (Res[...]

  • Pagina 29

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 29 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.9 Register 08h: Co nfiguration Dat a Byte 2 (Reset = 0x00 ) 5 HS_DISABLE High S peed Disa ble: Disables the capability to attach as either a High/Full- speed device, and force s attachment as Full-speed only i.e. (no High -S peed support). 0 = High-/Fu[...]

  • Pagina 30

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 30 SMSC USB2502 DA T ASHEET 5.3.9.10 Register 09h: Non- Removable Device (Reset = 0x00) 5.3.9.1 1 Register 0Ah: Port Disable For Self Powered Operation (Rese t = 0x00) 5.3.9.12 Register 0Bh: Port Disa ble For Bus Powered Operation (Reset = 0x00) 5.3.9.13 Register 0Ch: Max Power For Se [...]

  • Pagina 31

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 31 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.14 Register 0Dh: Max Power For Bus Powered Operation (Reset = 0x00 ) 5.3.9.15 Register 0Eh: Hub Contr oller Max Curr ent For Self Powered Operation (Reset = 0x 00) 5.3.9.16 Register 0Fh: Hu b Controller Max Curren t For Bus Powered Operation (Res et = [...]

  • Pagina 32

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 32 SMSC USB2502 DA T ASHEET 5.3.9.19 Reserved Registers Unless otherwise inst ructed, only a ‘0’ may be writ ten to all reserved reg isters or bits. 5.4 Default Configuration Option: The SMSC Hub can be config ured via its internal defa ult conf iguration. (please see for speci fic[...]

  • Pagina 33

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 33 Revision 2.3 (08-27-07) DA T ASHEET 5.6.1 External Hardware RESET_N A valid hardware reset is defined as, assertion of RESET_N for a minimum of 1us after all power supplies are within ope rating range. Whil e reset is asserted, the Hub (a nd its associated external circuitry) consumes less tha[...]

  • Pagina 34

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 34 SMSC USB2502 DA T ASHEET Notes:  When in Bus-Powered mode, the Hub and its associated circuitry mu st not consume more than 100mA from the upstream USB power source d uring t1+t5.  All Power Supplies mu st have reached th e operating level s mandated in Secti on Chapter 7, &qu[...]

  • Pagina 35

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 35 Revision 2.3 (08-27-07) DA T ASHEET  All Power Supplies mu st have reached th e operating level s mandated in Secti on Chapter 7, "DC Parameters" , prior to (or coincident wi th) the assertion of RESET_N. 5.6.1.3 RESET_N for SMBus Slave Configuration Figure 5.4 Reset_N Timing for [...]

  • Pagina 36

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 36 SMSC USB2502 DA T ASHEET 5.6.2 U SB Bus Reset In response to the upstream port signaling a reset to the Hub, the Hub does the fol lowing: Note: The Hub does no t propagate the upstream USB reset to dow nstream devices. 1. Sets default address to 0. 2. Sets configuration to: Unconfig[...]

  • Pagina 37

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 37 Revision 2.3 (08-27-07) DA T ASHEET Chapter 6 XNOR T est XNOR continuity tests all signal pin s on the Hub (every pin except for NC, XT AL1/CLKIN, XT AL2, A TEST/REG_EN, RBIAS, TEST, Power , and Gro und). This functionali ty is enabled by driving T EST and CFG_SEL[1] high, driving SCLK low and[...]

  • Pagina 38

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 38 SMSC USB2502 DA T ASHEET Chapter 7 DC Parameters 7.1 Maximum Guaranteed Ratings Note: S tresses above the specif ied parameters could cause permanent damage to the device. This is a stress rating only and functional operation of the device at any condition above those indicated in t[...]

  • Pagina 39

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 39 Revision 2.3 (08-27-07) DA T ASHEET 7.2 Recommended Operating Conditions PARAMETER SYMBOL MIN MAX UNITS COMMENTS Operating T e mperature T A 07 0 ° C 1.8V supply voltage V DDA18PLL V DD18 1.62 1.98 V 3.3V supply voltage V DDA 33 V DDA33PLL V DD33CR 3.0 3.6 V V oltage on any I/O pin -0.3 5.5 V[...]

  • Pagina 40

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 40 SMSC USB2502 DA T ASHEET ICLK Input Buffe r Low Input Level High Input Leve l Input Leakage Hysteresis V ILCK V IHCK I IL V HYSC 2.0 -10 50 0.8 +10 100 V V uA mV TTL Levels V IN = 0 to V DD33 CR O8 and I/O8 Type Buffer Low Output Level High Output Leve l Output Leakage V OL V OH I O[...]

  • Pagina 41

    2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 41 Revision 2.3 (08-27-07) DA T ASHEET Notes: 1. Output leakage i s measured with t he current pins in hi gh impedance. 2. See USB 2.0 Specification for USB DC electrical characteristics. 3. RBIAS is a 3.3V tolerant analog pin. CAP ACIT ANCE T A = 25°C; fc = 1MHz; V DD33CR = 3.3 V Power Sequenci[...]

  • Pagina 42

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 42 SMSC USB2502 DA T ASHEET Chapter 8 AC S pecifications 8.1 Oscillator/Clock Crystal: Parallel Resonant, Funda mental Mode, 24 MHz ± 100ppm. External Clock: 50% Duty cycle ± 1 0 % , 2 4 M H z ± 100ppm, Jitter < 100 ps rm s. 8.1.1 S MBus Interface: The SMSC Hub conforms to all vo[...]

  • Pagina 43

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 43 SMSC USB2502 DA T ASHEET Chapter 9 Package Outlines Figure 9.1 36 Pin QFN Pac kage - SEE SP E C F R O N T P A G E F O R REVISION HISTOR Y -- DECIM AL X.X X.XX X.XXX MATERIAL FI NIS H STD CO MPLI AN C E THIR D ANGL E PRO JECTI O N PR I N T W I T H " S C A LE TO FIT" DO N OT[...]

  • Pagina 44

    2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 44 SMSC USB2502 DA T ASHEET Figure 9.2 48 Pin TQFP Package Ou tl ine (7x7x1.4 mm body , 2mm Footprint) Notes: 1. Controlling Unit: millimeter . 2. T ole rance on the true position of the l eads is ± 0.04 mm maximum. 3. Package body dimensions D1 an d E1 do not include t he mold protru[...]