ADM812 Analog Devices, ADM812 Datasheet - Page 5

• Manufacturer Part Number: ADM812
• Description: Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic High RESET Output
• Manufacturer: Analog Devices

Specifications of ADM812

• # Of Monitored Voltages: 1
• Backup-battery Switch: No
• Manual Reset Capability: Yes
• Package: SOT
• Reset Threshold Summary: 6 Options--2.32 to 4.63V
• Reset Output-stage: Active-High/Push-Pull
• Min Reset Timeout (ms): 140
• Watchdog Timer: No

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 3. Pin Function Descriptions
Pin No.
1
2
3
4
Mnemonic
GND
RESET (ADM811)
RESET (ADM812)
MR
V
CC
Description
Ground Reference For All Signals, 0 V.
Active Low Logic Output. RESET remains low while V
RESET then remains low for at least 140 ms (at least 300 ms for the ADM811-3T) after V
reset threshold.
Active High Logic Output. RESET remains high while V
RESET then remains high for 240 ms (typical) after V
Manual Reset. This active low debounced input ignores input pulses of 100 ns or less (typical) and is
guaranteed to accept input pulses of greater than 10 μs. Leave floating when not used.
Monitored Supply Voltage of 2.5 V, 3 V, 3.3 V, or 5 V.
RESET/RESET
Figure 3. Pin Configuration
GND
Rev. F | Page 5 of 12
1
2
(Not to Scale)
ADM811/
ADM812
TOP VIEW
4
3
V
MR
CC
CC
CC
rises above the reset threshold.
CC
is below the reset threshold or when MR is low;
is below the reset threshold or when MR is low;
ADM811/ADM812
CC
rises above the