ADM1232AARM AD [Analog Devices], ADM1232AARM Datasheet - Page 4

• Manufacturer Part Number: ADM1232AARM
• Description: Microprocessor Supervisory Circuit
• Manufacturer: AD [Analog Devices]

Mnemonic
PB RESET
TD
TOLERANCE
GND
RESET
RESET
STROBE
V
ADM1232A
CC
TOLERANCE
PB RESET
GND
NC
NC
NC
NC
TD
1
2
3
4
5
6
7
8
NC = NO CONNECT
ADM1232A
(Not to Scale)
TOP VIEW
R-16
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 ADM1232A will allow the STROBE
input to remain inactive (i.e., STROBE is not receiving any high-to-low transitions), without forcing the
ADM1232A 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.
CC
16
15
14
13
12
11
10
9
decreases below the amount specified by the TOLERANCE input or,
RESET
RESET
NC
NC
STROBE
NC
NC
V
CC
PIN FUNCTION DESCRIPTIONS
TOLERANCE
PB RESET
GND
PIN CONFIGURATIONS
TD
1
2
3
4
(Not to Scale)
ADM1232A
TOP VIEW
RM-8
–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)
ADM1232A
TOP VIEW
8
7
6
5
V
STROBE
RESET
RESET
CC
REV. 0