參數(shù)資料
型號: CYDC064B16
廠商: Cypress Semiconductor Corp.
英文描述: Replacement for National Semiconductor part number DM9328N. Buy from authorized manufacturer Rochester Electronics.
中文描述: 1.8 4k/8k/16k × 16和8k/16k × 8 ConsuMoBL雙端口靜態(tài)存儲器
文件頁數(shù): 20/26頁
文件大?。?/td> 580K
代理商: CYDC064B16
CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
Document #: 001-01638 Rev. *E
Page 20 of 26
Semaphore Read After Write Timing, Either Side
[49, 50]
Timing Diagram of Semaphore Contention
[51, 52]
Notes:
49.If the CE or SEM LOW transition occurs simultaneously with or after the R/W LOW transition, the outputs remain in the high-impedance state.
50.CE = HIGH for the duration of the above timing (both write and read cycle).
51.I/O
0R
= I/O
= LOW (request semaphore); CE
= CE
= HIGH.
52.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
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
DATA
OUT
VALID
MATCH
t
SPS
MATCH
R/W
L
SEM
L
R/W
R
SEM
R
A
0L
–A
2L
A
0R
–A
2R
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CYDC064B16-40AXC 1.8V 4k/8k/16k x 16 and 8k/16k x 8 ConsuMoBL Dual-Port Static RAM
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參數(shù)描述
CYDC064B16-40AXC 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:1.8V 4k/8k/16k x 16 and 8k/16k x 8 ConsuMoBL Dual-Port Static RAM
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CYDC064B16-55AXI 功能描述:靜態(tài)隨機存取存儲器 64K 4Kx16 Consumer Hi Vol Dual Port IND RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間: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 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
CYDC1069AV33-10ZC 制造商:Cypress Semiconductor 功能描述:MW
CYDC128B08 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:1.8V 4k/8k/16k x 16 and 8k/16k x 8 ConsuMoBL Dual-Port Static RAM