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參數(shù)資料
| 型號(hào)： | U631H64BDC45 |
| 英文描述： | General purpose JFET quad operational amplifiers |
| 中文描述： | NVRAM中（EEPROM的基礎(chǔ)） |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大小： | 125K |
| 代理商： | U631H64BDC45 |
11
November 01, 2001
U631H64
Due to this automatic RECALL, SRAM operation
cannot commence until t
RESTORE
after V
CC
exceeds
V
SWITCH
.
If the U631H64 is in a WRITE state at the end of power
up RECALL, the SRAM data will be corrupted.
To help avoid this situation, a 10 K
resistor should be
connected between W and V
CC
.
Hardware Protection
The U631H64 offers hardware protection against inad-
vertent STORE operation through V
CC
sense.
For V
CC
< V
SWITCH
the software initiated STORE opera-
tion will be inhibited.
Low Average Active Power
The U631H64 has been designed to draw significantly
less power when E is LOW (chip enabled) but the
access cycle time is longer than 55 ns.
When E is HIGH the chip consumes only standby cur-
rent.
The overall average current drawn by the part depends
on the following items:
1. CMOS or TTL input levels
2. the time during which the chip is disabled (E HIGH)
3. the cycle time for accesses (E LOW)
4. the ratio of READs to WRITEs
5. the operating temperature
6. the V
CC
level
The information describes the type of component and shall not be considered as assured characteristics. Terms of
delivery and rights to change design reserved.
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PDF描述 |
|---|---|
| U631H64BDK25 | General purpose JFET quad operational amplifiers |
| U631H64BDK35 | General purpose JFET quad operational amplifiers |
| U631H64BDK45 | NVRAM (EEPROM Based) |
| U631H64BSC25 | General purpose JFET quad operational amplifiers |
| U631H64BSC35 | NVRAM (EEPROM Based) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| U631H64BDC45G1 | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:SoftStore 8K x 8 nvSRAM |
| U631H64BDK25 | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:SoftStore 8K x 8 nvSRAM |
| U631H64BDK25G1 | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:SoftStore 8K x 8 nvSRAM |
| U631H64BDK35 | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:SoftStore 8K x 8 nvSRAM |
| U631H64BDK35G1 | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:SoftStore 8K x 8 nvSRAM |
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