參數(shù)資料
型號(hào): CY7C025AV-25AC
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 3.3V 4K/8K/16K x 16/18 Dual-Port Static RAM
中文描述: 8K X 16 DUAL-PORT SRAM, 25 ns, PQFP100
封裝: PLASTIC, MS-026, TQFP-100
文件頁(yè)數(shù): 13/19頁(yè)
文件大?。?/td> 241K
代理商: CY7C025AV-25AC
CY7C024AV/025AV/026AV
CY7C0241AV/0251AV/036AV
Document #: 38-06052 Rev. *E
Page 13 of 19
Notes:
41. CE = HIGH for the duration of the above timing (both write and read cycle).
42. I/O
= I/O
= LOW (request semaphore); CE
= CE
= HIGH.
43. Semaphores are reset (available to both ports) at cycle start.
44. If t
SPS
is violated, the semaphore will definitely be obtained by one side or the other, but which side will get the semaphore is unpredictable.
Switching Waveforms
(continued)
t
SOP
t
SAA
VALID ADRESS
VALID ADRESS
t
HD
DATA
IN
VALID
DATA
OUT
VALID
t
OHA
t
AW
t
HA
t
ACE
t
SOP
t
SCE
t
SD
t
SA
t
PWE
t
SWRD
t
DOE
WRITE CYCLE
READ CYCLE
OE
R/W
I/O
0
SEM
A
0
–A
2
Semaphore Read After Write Timing, Either Side
[41]
MATCH
t
SPS
A
0L
–A
2L
MATCH
R/W
L
SEM
L
A
0R
–A
2R
R/W
R
SEM
R
Timing Diagram of Semaphore Contention
[42, 43, 44]
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參數(shù)描述
CY7C025AV-25ACKJ 制造商:Cypress Semiconductor 功能描述:
CY7C025AV-25AI 制造商:Rochester Electronics LLC 功能描述:3.3V 8K X 16 DPSRAM - Bulk
CY7C025AV-25AIT 制造商:Cypress Semiconductor 功能描述:
CY7C025AV-25AXC 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 3.3V 8Kx16 COM Async Dual Port 靜態(tài)隨機(jī)存取存儲(chǔ)器 RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問時(shí)間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
CY7C025AV-25AXCT 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 3.3V 8Kx16 COM Async Dual Port 靜態(tài)隨機(jī)存取存儲(chǔ)器 RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問時(shí)間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray