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參數(shù)資料
| 型號： | CY7C018V-25AC |
| 英文描述： | x9 Dual-Port SRAM |
| 中文描述： | X9熱賣雙端口SRAM |
| 文件頁數(shù)： | 19/20頁 |
| 文件大?。?/td> | 301K |
| 代理商： | CY7C018V-25AC |
CY7C138AV/144AV/006AV
CY7C139AV/145AV/016AV
CY7C007AV/017AV
Document #: 38-06051 Rev. *A
Page 8 of 20
Data Retention Mode
The CY7C0138AV/144AV/006AV/007AV and CY7C139AV/
145AV/016AV/017AV are designed with battery backup in
mind. Data retention voltage and supply current are guaran-
teed over temperature. The following rules ensure data reten-
tion:
1. Chip enable (CE) must be held HIGH during data retention, with-
in VCC to VCC – 0.2V.
2. CE must be kept between VCC – 0.2V and 70% of VCC
during the power-up and power-down transitions.
3. The RAM can begin operation >tRC after VCC reaches the
minimum operating voltage (3.0 volts).
Notes:
22. tBDD is a calculated parameter and is the greater of tWDD–tPWE (actual) or tDDD–tSD (actual).
23. CE = VCC, Vin = GND to VCC, TA = 25°C. This parameter is guaranteed but not tested.
tWB
R/W HIGH after BUSY (Slave)
0
ns
tWH
R/W HIGH after BUSY HIGH (Slave)
15
17
ns
tBDD
[22]
BUSY HIGH to Data Valid
20
25
ns
INTERRUPT TIMING[21]
tINS
INT Set Time
20
ns
tINR
INT Reset Time
20
ns
SEMAPHORE TIMING
tSOP
SEM Flag Update Pulse (OE or SEM)
10
12
ns
tSWRD
SEM Flag Write to Read Time
5
ns
tSPS
SEM Flag Contention Window
5
ns
tSAA
SEM Address Access Time
20
25
ns
Switching Characteristics Over the Operating Range[15] (continued)
Parameter
Description
CY7C138AV/144AV/006AV
CY7C139AV/145AV/016AV
CY7C007AV/017AV
Unit
-20
-25
Min.
Max.
Min.
Max.
Timing
Parameter
Test Conditions[23]
Max.
Unit
ICCDR1
@ VCCDR = 2V
50
A
Data Retention Mode
3.0V
VCC > 2.0V
VCC to VCC – 0.2V
VCC
CE
tRC
V
IH
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| CY7C019 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:64K/128K x 8/9 Dual-Port Static RAM |
| CY7C019-12AC | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:64K/128K x 8/9 Dual-Port Static RAM |
| CY7C019-15AC | 功能描述:IC SRAM 1.152MBIT 15NS 100LQFP RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標準包裝:2,500 系列:- 格式 - 存儲器:EEPROMs - 串行 存儲器類型:EEPROM 存儲容量:1K (128 x 8) 速度:100kHz 接口:UNI/O?（單線） 電源電壓:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR) |
| CY7C019-20AC | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:64K/128K x 8/9 Dual-Port Static RAM |
| CY7C019-20AI | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:64K/128K x 8/9 Dual-Port Static RAM |
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