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參數(shù)資料
| 型號： | U632H64BDK25 |
| 英文描述： | NVRAM (EEPROM Based) |
| 中文描述： | NVRAM中（EEPROM的基礎） |
| 文件頁數(shù)： | 13/14頁 |
| 文件大小： | 155K |
| 代理商： | U632H64BDK25 |
13
November 01, 2001
U632H64
Low Average Active Power
The U632H64 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 power supply voltage level
1
2
3
28
27
26
4
5
6
7
8
9
10
11
25
24
23
22
21
20
19
18
12
13
14
17
16
15
+
0.1
μ
F
Bypas
s
100
μ
F
±
20 %
V
CAP
V
SS
Power
Supply
10 K
(optional,
see description HSB
nonvolatile store)
V
CCX
HSB
Figure 1: Automatic STORE Operation
Schematic Diagram
The information describes the type of component and shall not be considered as assured characteristics. Terms of
delivery and rights to change design reserved.
1
2
3
28
27
26
4
5
6
7
8
9
10
11
25
24
23
22
21
20
19
18
12
13
14
17
16
15
0.1
μ
F
Bypass
V
CAP
V
SS
Power
Supply
V
CCX
HSB
10 K
(optional,
see description HSB
nonvolatile store)
Figure 2: Disabeling Automatic STORES
Schematic Diagram
V
CAP
5.0 V
V
SWITCH
STORE inhibit
Power Up
RECALL
t
RESTORE
(24)
t
Disabeling Automatic STORES: STORE Cycle Inhibit and Automatic Power Up RECALL
相關PDF資料 |
PDF描述 |
|---|---|
| U632H64BDK35 | NVRAM (EEPROM Based) |
| U632H64BDK45 | NVRAM (EEPROM Based) |
| U632H64BSC25 | NVRAM (EEPROM Based) |
| U632H64BSC35 | NVRAM (EEPROM Based) |
| U632H64BSC45 | NVRAM (EEPROM Based) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| U632H64BDK25G1 | 制造商:Cypress Semiconductor 功能描述: |
| U632H64BDK35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (EEPROM Based) |
| U632H64BDK45 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (EEPROM Based) |
| U632H64BS2C25G1 | 制造商:SIMTEK 制造商全稱:Simtek Corporation 功能描述:PowerStore 8K x 8 nvSRAM |
| U632H64BS2K25 | 制造商:Cypress Semiconductor 功能描述: |
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