adm1232arm-reel Analog Devices, Inc., adm1232arm-reel Datasheet - Page 4
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adm1232arm-reel
Manufacturer Part Number
adm1232arm-reel
Description
Microprocessor Supervisory Circuit
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADM1232ARM-REEL.pdf
(6 pages)
Mnemonic
PB RESET
TD
TOLERANCE
GND
RESET
RESET
STROBE
V
ADM1232
CC
TOLERANCE
PB RESET
GND
NC
NC
NC
NC
TD
1
2
3
4
5
6
7
8
NC = NO CONNECT
(Not to Scale)
ADM1232
TOP VIEW
Function
Push Button Reset Input. This debounced input will ignore pulses of less than 1 ms and is guaranteed to re-
spond to pulses greater than 20 ms.
Time Delay Set allows the user to select the maximum amount of time the ADM1232 will allow the STROBE
input to remain inactive (i.e., STROBE is not receiving any high-to-low transitions), without forcing the
ADM1232 to generate a RESET pulse. (See STROBE specifications, Figure 4 and the note on STROBE
timeout selection.)
Tolerance Input. This input will determine how much the supply voltage will be allowed to decrease (as a per-
centage tolerance) before a RESET is asserted. Connect to V
0 V ground reference for all signals.
Active high logic output. Will be asserted when:
1. V
2. PB RESET is forced low or,
3. If there are no high-to-low transitions within the limits set by TD at STROBE or,
4. During power-up.
Inverse of RESET, with an open drain output.
The STROBE input is used to monitor the activity of a microprocessor. If there are no high-to-low transi-
tions within the time specified by TD, a reset will be asserted.
Power supply input +5 V.
R-16
CC
decreases below the amount specified by the TOLERANCE input or,
16
15
14
13
12
11
10
9
RESET
RESET
NC
NC
STROBE
NC
NC
V
CC
TOLERANCE
PIN FUNCTION DESCRIPTIONS
PB RESET
GND
TD
PIN CONFIGURATIONS
1
2
3
4
(Not to Scale)
ADM1232
RM-8
TOP VIEW
–4–
8
7
6
5
V
STROBE
RESET
RESET
CC
CC
for 10% and GND for 5%.
TOLERANCE
PB RESET
GND
TD
1
2
3
4
N-8 and R-8
(Not to Scale)
ADM1232
TOP VIEW
8
7
6
5
V
STROBE
RESET
RESET
CC
REV. B