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參數(shù)資料
| 型號： | HM1-65642883 |
| 廠商： | Intersil Corporation |
| 英文描述： | 8K x 8 Asynchronous CMOS Static RAM |
| 中文描述： | 8K的× 8異步的CMOS靜態(tài)RAM |
| 文件頁數(shù)： | 6/9頁 |
| 文件大小： | 77K |
| 代理商： | HM1-65642883 |
6-225
Low Voltage Data Retention
Intersil CMOS RAMs are designed with battery backup in
mind. Data Retention voltage and supply current are guaran-
teed over the operating temperature range. The following
rules ensure data retention:
1. The RAM must be kept disabled during data retention. This is ac-
complished by holding the E2 pin between -0.3V and GND.
2. During power-up and power-down transitions, E2 must be held
between -0.3V and 10% of VCC.
3. The RAM can begin operating one TAVAX after VCC reaches the
minimum operating voltage of 4.5V.
Read Cycles
FIGURE 2. READ CYCLE I: W, E2 HIGH; G, E1 LOW
FIGURE 3. READ CYCLE II: W HIGH
4.5V
VIH
VCC
E2
VCCOR
GND
DATA RETENTION MODE
TAVAX
FIGURE 1. DATA RETENTION
A
ADDRESS 1
Q
TAVAX
TAVQV
TAXQX
ADDRESS 2
DATA 1
DATA 2
TAVAX
TAVQV
TE1LQV
TE1LQX
TE1HQZ
TE2LQZ
TE2HQV
TE2HQX
TGLQV
TGLQX
TGHQZ
A
E2
G
Q
E1
HM-65642/883
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| HM1-65642B883 | 8K x 8 Asynchronous CMOS Static RAM |
| HM1-65642C883 | 8K x 8 Asynchronous CMOS Static RAM |
| HM4-65642883 | 8K x 8 Asynchronous CMOS Static RAM |
| HM4-65642B883 | 8K x 8 Asynchronous CMOS Static RAM |
| HM1-6504883 | Resistors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HM1-65642-9 | 功能描述:靜態(tài)隨機(jī)存取存儲器 RAM 8192X8 5V 150NS 150UA 28CDIP 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(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| HM1-65642B | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:8K x 8 Asynchronous CMOS Static RAM |
| HM1-65642B/883 | 制造商:Intersil Corporation 功能描述:SRAM ASYNC SGL 5V 64KBIT 8KX8 150NS 28CDIP - Rail/Tube |
| HM1-65642B-8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM |
| HM1-65642B883 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:8K x 8 Asynchronous CMOS Static RAM |
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