MP1232LPCMA 查看數據表（PDF） - IMP, Inc
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MP1232LPCMA Datasheet PDF : 7 Pages
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IMP1232LP/LPS
Pin Configuration
DIP/SO/MicroSO
PBRST
TD
TOL
GND
1
8
2
IMP1232LP
IMP1232LPS-2
7
3 IMP1232LPCMA 6
IMP1232LPEMA
4
5
VCC
ST
RESET
RESET
1232_01.eps
SO
NC 1
16 NC
PBRST 2
15 VCC
NC 3
14 NC
IMP1232LPSN
TD 4
13 ST
NC 5
12 NC
TOL 6
11 RESET
NC 7
10 NC
GND 8
9 RESET
1232_02.eps
Pin Descriptions
Pin Number
8-Pin Package
1
2
Pin Number
16-Pin Package
2
4
3
6
4
8
5
9
Name
PBRST
TD
TOL
GND
RESET
6
11
RESET
7
13
ST
8
15
VCC
—
1, 3, 5, 7, 10,
NC
12, 14, 16
Function
Debounced manual pushbutton RESET input
Watchdog time delay selection. (tTD = 150ms for TD = GND, tTD = 610ms
for TD = Open, and tTD =1200ms for TD = VCC)
Selects 5% (TOL connected to GND) or 10% (TOL connected to VCC) trip
point tolerance
Ground
Active HIGH reset output. RESET is active:
1. If VCC falls below the reset voltage trip point.
2. If PBRST is LOW.
3. If ST is not strobed LOW before the timeout period set by TD expires.
4. During power-up.
Active LOW reset output. (See RESET)
Strobe Input
5V power
No internal connection
Ordering Information
Part Number
IMP1232LP
IMP1232LPS
IMP1232LPS-2
IMP1232LPCMA
IMP1232LPEMA
IMP1232LPN
IMP1232LPSN-2
IMP1232LPSN
2
Package
8-DIP
16-SO
8-SO
8-MicroSO
8-MicroSO
8-DIP
8-SO
16-SO
Operating Temperature
Range
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
Maximum Supply
Current (µA)
30
30
30
30
30
30
30
30
408-432-9100/www.impweb.com
Voltage Monitoring
Application
5V
5V
5V
5V
5V
5V
5V
5V
1232_t01.eps
© 1999 IMP, Inc.
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