English dropdown-ico

Cypress CY7C1148V18 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Cypress CY7C1148V18, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Cypress CY7C1148V18 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Cypress CY7C1148V18. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Cypress CY7C1148V18 should contain:
- informations concerning technical data of Cypress CY7C1148V18
- name of the manufacturer and a year of construction of the Cypress CY7C1148V18 item
- rules of operation, control and maintenance of the Cypress CY7C1148V18 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Cypress CY7C1148V18 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Cypress CY7C1148V18, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Cypress service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Cypress CY7C1148V18.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Cypress CY7C1148V18 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 18-Mbit DDR-II+ SRAM 2-W ord Burst Architecture (2.0 Cycle Read Latency) Cypress Semiconductor Corpora tion • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document Number: 001-06621 Rev . *D Revised March 06, 2008 Features ■ 18 Mbit density (2M x 8, 2M x 9, 1M x 18, 512K [...]

  • Page 2

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 2 of 27 Logic Block Diagram (CY7C1 146V18) Logic Block Diagram (CY7C1 157V18) CLK A (19:0) Gen. K K Control Logic Address Register Read Add. Decode Read Data Reg. R/W DQ [7:0] Output Logic Reg. Reg. Reg. 8 8 16 8 NWS [1:0] V REF Write Add. Decode 8 8 LD C[...]

  • Page 3

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 3 of 27 Logic Block Diagram (CY7C1 148V18) Logic Block Diagram (CY7C1 150V18) CLK A (18:0) Gen. K K Control Logic Address Register Read Add. Decode Read Data Reg. R/W DQ [17:0] Output Logic Reg. Reg. Reg. 18 18 36 18 BWS [1:0] V REF Write Add. Decode 18 1[...]

  • Page 4

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 4 of 27 Pin Configurations CY7C1 146V18 (2M x 8) 165-Ball FBGA (13 x 15 x 1.4 mm) Pinout 23 4 567 1 A B C D E F G H J K L M N P R A CQ NC NC NC NC DOFF NC NC/72M A NWS 1 K R/W NC/144M NC NC NC NC NC TDO NC NC NC NC NC NC TCK NC NC A NC/288M K NWS 0 V SS A[...]

  • Page 5

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 5 of 27 Pin Configurations (continued) CY7C1 148V18 (1M x 18) 165-Ball FBGA (13 x 15 x 1.4 mm) Pinout 23 4 567 1 A B C D E F G H J K L M N P R A CQ NC NC NC NC DOFF NC NC/72M A BWS 1 K R/W NC/144M DQ9 NC NC NC NC TDO NC NC NC NC NC NC TCK NC NC A NC/288M [...]

  • Page 6

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 6 of 27 Pin Definitions Pin Name IO Pin Description DQ [x:0] Input Output- Synchronous Data Input Output Signal s . Inputs are sampled on the rising edge of K an d K clocks when write operations are val id. These pins drive out the req uested data when a [...]

  • Page 7

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 7 of 27 DOFF Input DLL T urn Off − Active LOW . Connecting this pin to g round turns off the DLL inside the device. The timings in the DLL turned off operation are different from those listed in this data sheet. For normal operation, connect this pin to[...]

  • Page 8

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 8 of 27 Functional Overview The CY7C1 146V18, CY7C1 1 57V18, CY7C1 148V18, and CY7C1 150V18 are syn chronous pipelined Burst SRAMs equipped with a DDR inte rface. Accesses are initiate d on the rising edge o f the positive inp ut clock (K). All synchronou[...]

  • Page 9

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 9 of 27 echo clock and follows the ti ming of any data pin. This signal i s asserted half a cycle befo re valid data arrives. DLL These chips utilize a Delay Lock Loop (DLL) th at is desig ned to function between 120 MHz and the speci fied maximum clock f[...]

  • Page 10

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 10 of 27 Write Cycle Descriptions The write cycle descriptions of CY7C1 146V18 and CY7C1 148V18 follows. [3, 9] BWS 0 / NWS 0 BWS 1 / NWS 1 K K Comments L L L – H – When the Data portion of a write sequence is active : CY7C1 146V18 − both nibbles (D[...]

  • Page 11

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 1 1 of 27 The write cycle descriptions of CY7C1 148 V18 follows, [3, 9] BWS 0 BWS 1 BWS 2 BWS 3 K K Comments LLLL L – H – W h e n t h e D a t a p o r t i o n o f a w r i t e s e quence is active , all four bytes (D [35:0] ) are written into the device[...]

  • Page 12

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 12 of 27 IEEE 1 149.1 Serial Boundary Scan (JT AG) These SRAMs incorporate a serial boundary scan test access port (T AP) in the FBGA package. This part is fully comp liant with IEEE S tandard 1 14 9.1-2001. The T AP op erates using JEDEC standard 1.8V IO[...]

  • Page 13

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 13 of 27 IDCODE The IDCODE instruction causes a vendor-speci fic, 32-bit code to be loaded into the instruction re gister . It also places the instruction register b etween th e TDI an d TDO p ins an d enable s the IDCODE to be shifted out of the device w[...]

  • Page 14

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 14 of 27 T AP Controller St ate Diagram Figure 2 shows the tap controller state diagram. [10] Figure 2. T ap Co ntroller St ate Diagram TEST -LOGIC RESET TEST -LOGIC/ IDLE SELECT DR-SCAN CAPTURE-DR SHIFT -DR EXIT1-DR P AUSE-DR EXIT2-DR UPDA TE-DR SELECT I[...]

  • Page 15

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 15 of 27 T AP Controller Blo ck Diagram Figure 3. T a p Controller Block Diagram T AP Electrical Characteristics The T ap Electrical Characteristics ta ble over the operati ng rang e follows. [1 1, 12, 13] Parameter Descriptio n T est Conditions Min Max U[...]

  • Page 16

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 16 of 27 T AP AC Switchi ng Characteristics The T ap AC Switching Characteristics ta ble over the operati ng rang e follows. [14, 15] Parameter Descriptio n Min Max Unit t TCYC TCK Clock Cycle T ime 50 ns t TF TCK Clock Frequency 20 MHz t TH TCK Clock HIG[...]

  • Page 17

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 17 of 27 Identification Regi ster Definitions Instruction Field Va l u e Description CY7C1 146V18 CY7C1 157V18 CY7C1 148V18 CY7C 1 150V18 Revision Number (31:29) 000 000 000 000 V ersion number . Cypress Device ID (28:12) 1 10101 1 1 100000101 1 10101 1 1[...]

  • Page 18

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 18 of 27 Boundary Scan Order Bit # Bump ID Bit # Bump ID Bit # Bump ID Bit # Bump ID 0 6R 27 1 1H 54 7B 81 3G 1 6 P 28 10G 55 6B 82 2G 26 N 2 9 9 G 5 6 6 A 8 3 1 J 3 7 P 30 1 1F 57 5B 84 2J 4 7N 31 1 1G 58 5A 85 3K 57 R 3 2 9 F 5 9 4 A 8 6 3 J 6 8R 33 10F[...]

  • Page 19

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 19 of 27 Power Up Sequence in DDR-II+ SRAM During Power Up, when the DOFF is tied HIG H, the DLL gets locked after 2048 cycles of st able clock. DDR-II+ SRAMs must be powered up and initialized in a predefin ed manner to prevent undefined operations. Powe[...]

  • Page 20

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 20 of 27 Maximum Ratin gs Exceeding maximum ratings may shorten the useful life of the device. These user guid elines are not tested. S torage T emperature ............. .............. ..... –65°C to + 150°C Ambient T emperature with Powe r Applied ?[...]

  • Page 21

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 21 of 27 Cap acit ance T ested initially and after any design or proc ess change that may affect these parameters . Parameter Descriptio n T est Conditions Max Unit C IN Input Capacitance T A = 25 ° C, f = 1 MHz, V DD = 1.8V V DDQ = 1.5V 5p F C CLK Clock[...]

  • Page 22

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 22 of 27 Switching Characteristics Over the operating range [21, 22] Cypress Parameter Consortium Parameter Description 375 MH z 333 MHz 300 MHz Unit Min Max Min Max Min Max t POWER V DD (T ypical) to the first Access [23] 1–1–1– m s t CYC t KHKH K [...]

  • Page 23

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 23 of 27 Switching W aveforms Read/Write /Deselect Sequence Figure 7. W aveform for 2.0 Cycle Read L aten cy [29, 30, 31] DON’ T CARE UNDEFINED 1 2 3 4 5 6 7 8 9 10 READ READ READ NOP WRITE WRITE t NOP 11 K K LD R/W A t KH t KL t CYC t HC t SA t HA SC A[...]

  • Page 24

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 24 of 27 Ordering Information Not all of the speed, package and tem perature ranges are availabl e. Contac t your local sales representative or visit www .cypress.com for actual products offered. Speed (MHz) Ordering Co de Package Diagram Package T y pe O[...]

  • Page 25

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 25 of 27 300 CY7C1 146V18-300BZC 51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm) Commercial CY7C1 157V18-300BZC CY7C1 148V18-300BZC CY7C1 150V18-300BZC CY7C1 146V18-300BZXC 51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb[...]

  • Page 26

    CY7C1 146V18, CY7C1 157V18 CY7C1 148V18, CY7C1 150V18 Document Number: 001-06621 Rev . *D Page 26 of 27 Package Diagram Figure 8. 165-Ball FBGA (13 x 15 x 1.4 mm), 51-8 5180 A 1 PIN 1 CORNER 15.00±0.10 13.00±0.10 7.00 1.00 Ø0.50 (165X) Ø0.25 M C A B Ø0.05 M C B A 0.15(4X) 0.35±0.06 SEATING PLANE 0.53±0.05 0.25 C 0.15 C PIN 1 CORNER TOP VIEW [...]

  • Page 27

    Document Number: 001-06621 Rev . *D Revised March 06, 2008 Page 27 of 27 QDR™ is a trademark of Cypress Semicond uctor Corp. QDR RAMs and Quad Data Rate RAMs comprise a new family of prod ucts developed by Cypress, IDT , NEC, Renesas, and Samsung. All product an d c ompany names me ntioned in t his document ar e the trade marks of th eir respecti[...]