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參數(shù)資料
| 型號(hào)： | CY7C025-55JC |
| 英文描述： | SRAM|8KX16|CMOS|LDCC|84PIN|PLASTIC |
| 中文描述： | 靜態(tài)存儲(chǔ)器| 8KX16 |的CMOS | LDCC | 84PIN |塑料 |
| 文件頁(yè)數(shù)： | 19/20頁(yè) |
| 文件大?。?/td> | 301K |
| 代理商： | CY7C025-55JC |
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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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CY7C025AV | Memory |
| CY7C026A | Memory |
| CY7C026A-12AC | x16 Dual-Port SRAM |
| CY7C026A-15AC | x16 Dual-Port SRAM |
| CY7C026A-15AI | x16 Dual-Port SRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| CY7C025-55JI | 制造商:CYPRESS 制造商全稱(chēng):Cypress Semiconductor 功能描述:4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY |
| CY7C025-55JXC | 功能描述:IC SRAM 128KBIT 55NS 84PLCC RoHS:是 類(lèi)別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 格式 - 存儲(chǔ)器:RAM 存儲(chǔ)器類(lèi)型:移動(dòng) SDRAM 存儲(chǔ)容量:256M（8Mx32） 速度:133MHz 接口:并聯(lián) 電源電壓:1.7 V ~ 1.95 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA（8x13） 包裝:帶卷 (TR) 其它名稱(chēng):557-1327-2 |
| CY7C025-55JXI | 制造商:CYPRESS 制造商全稱(chēng):Cypress Semiconductor 功能描述:4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY |
| CY7C025AV | 制造商:CYPRESS 制造商全稱(chēng):Cypress Semiconductor 功能描述:3.3V 4K/8K/16K x 16/18 Dual-Port Static RAM |
| CY7C025AV WAF | 制造商:Cypress Semiconductor 功能描述: |
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