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參數(shù)資料
| 型號： | MM1035XD |
| 廠商： | MITSUMI ELECTRIC CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | System Reset (with built-in watchdog timer) Monolithic IC |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大?。?/td> | 156K |
| 代理商： | MM1035XD |
MITSUMI
System Reset (with built-in watchdog timer) MM1035
Electrical Characteristics 2 (AC)
(Except where noted otherwise, Ta=25°C, V
CC
=5V, measurement circuit 2)
Item
Symbol
Measurement
Measurement conditions
Min. Typ. Max.
Units
circuit
V
CC
input pulse width
T
PI
2
8
μS
CK input pulse width
T
CKW
T
CK
2
2
3
μS
μS
CK input cycle
20
Watchdog timer
monitoring time
*
1
Reset time for
watchdog timer
*
2
Reset hold time for
power supply rise
*
3
T
WD
2
C
T
=0.1μF
5
10
15
mS
T
WR
2
C
T
=0.1μF
1
2
3
mS
T
PR
2
50
100
150
mS
T
PD
1
2
---------------------------------------
pin
2
10
Output delay time from V
CC
*
4
R
L
1=2.2k
, C
L
1=100pF
RESET pin
R
L
2=10k
, C
L
2=20pF
R
L
1=2.2k
, C
L
1=100pF
RESET pin
R
L
2=10k
, C
L
2=20pF
μS
T
PD
2
2
3
10
t
R
1
2
----------------------------------------
pin
1.0
1.5
Output rise time
*
5
μS
t
R
2
2
1.0
1.5
μS
V
CC
5V
4V
CK
or
C
T
=0.1μF, V
CC
Notes :
*
1: Monitoring time is the time from the last pulse (negative edge) of the timer clear clock pulse, until reset
pulse output. In other words, reset output is output if a clock pulse is not input during this time.
*
2: Reset time means reset pulse width. However, this does not apply to power on reset.
*
3: Reset hold time is the time from when V
CC
exceeds detection voltage (V
SH
) during power on reset, until
RESET
*
4: Output delay time is the time from when power supply voltage drops below detection voltage (V
SL
), until
RESET
*
5: Voltage range when measuring output rise and fall is 10~90%.
*
6: Watchdog timer monitoring time (T
WD
), watchdog timer reset time (T
WR
) and reset hold time (T
PR
) during
power supply rise can be changed by varying C
T
capacitance. The times are expressed by the following
formulae. The recommended range for C
T
is 0.001~10μF.
output goes high (reset release).
output goes low (reset status).
T
PR
(mS) .= 1000 C
T
(μF)
T
WD
(mS) .= 100 C
T
(μF)
T
WR
(mS) .= 20 C
T
(μF)
Example : When C
T
=0.1μF
T
PR
.= 100mS
T
WD
.= 10mS
T
WR
.= 2mS
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