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參數資料
| 型號： | X4645V8I-4.5A |
| 元件分類： | EEPROM |
| 英文描述： | CPU Supervisor with 64K EEPROM |
| 中文描述： | CPU監(jiān)控與64K的EEPROM的 |
| 文件頁數： | 17/22頁 |
| 文件大小： | 408K |
| 代理商： | X4645V8I-4.5A |
X4643/5 – Preliminary Information
Characteristics subject to change without notice.
17 of 22
REV 1.26 4/30/02
www.xicor.com
Power-Up and Power-Down Timing
RESET Output Timing
Notes:
(8) This parameter is periodically sampled and not 100% tested.
SDA vs. RESET Timing
Symbol
V
TRIP
Parameter
Min.
4.5
4.25
2.85
2.55
100
Typ.
4.62
4.38
2.92
2.62
250
Max.
4.75
4.5
3.0
2.7
400
500
Unit
V
Reset Trip Point Voltage, X4643/5-4.5A
Reset Trip Point Voltage, X4643/5
Reset Trip Point Voltage, X4643/5-2.7A
Reset Trip Point Voltage, X4643/5-2.7
Power-up Reset Time Out
V
CC
Detect to Reset/Output
V
CC
Fall Time
V
CC
Rise Time
Reset Valid V
CC
t
PURST
t
RPD
(8)
t
F
(8)
t
R
(8)
V
RVALID
ms
ns
μs
μs
V
100
100
1
V
CC
t
PURST
t
R
t
F
t
RPD
0 Volts
V
TRIP
RESET
(X4645)
RESET
(X4643)
V
RVALID
t
PURST
V
RVALID
t
RSP
<t
WDO
t
RST
RESET
SDA
t
RSP
Note: All inputs are ignored during the active reset period (t
RST
).
t
RST
SCL
t
RSP
>t
WDO
t
RSP
>t
WDO
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