ASM1233D Datasheet, PDF (1/10 Pages) Alliance Semiconductor Corporation – Low Power, 5V/3.3V, uP Reset, Active LOW, Open-Drain Output

ASM1233D, ASM1233D-L,
ASM1233M
Low Power, 5 V/3.3 V,
mP Reset, Active LOW,
Open-Drain Output
Description
The ASM1233D−L/1233D/1233M are voltage supervisors with
low−power, 5/3.3 V mP Reset, with an active LOW, open−drain output.
Maximum supply current over temperature is 15 mA for 3.3 V devices
and 20 mA for 5 V devices.
The ASM1233D−L/1233D/1233M generates an active LOW reset
signal whenever the monitored supply is out of tolerance. A precision
reference and comparator circuit monitors power supply (V_CC) level.
The tolerances are 5%, 10% and 15%. When an out−of−tolerance
condition is detected, an internal power−fail signal is generated which
forces an active LOW reset signal. After V_CC returns to an
in−tolerance condition, the reset signal remains active for 350 ms to
allow the power supply and system microprocessor to stabilize.
The ASM1233D−L/1233D/1233M is designed with an open drain
output stage and operates over the extended industrial temperature
range. These devices are available in compact SOT−223, SO−8 and
TO−92 packages.
Other low power products in this family include ASM1810/11/12/
15/16/17.
Features
• Low Supply Current
• 15 mA Maximum (≤ 3.6 V), 20 mA Maximum (5.5 V)
• Automatically Restarts a Microprocessor after Power Failure
• 350 ms Reset Delay after V_CC Returns to an In−tolerance Condition
• Active LOW Power−up Reset, 5 kW Internal Pull−up
• Precision Temperature−compensated Voltage Reference and
Comparator
• Eliminates External Components
• Low−cost SOT−223/SO−8/TO−92 Packages
• Operating Temperature: −40°C to +85°C
Applications
• Set−top Boxes
• Cellular Phones
• PDAs
• Energy Management Systems
• Embedded Control Systems
• Printers
• Single Board Computers
http://onsemi.com
SOIC−8
8 LEAD
CASE 751BD
SOT−223
4 LEAD
CASE 318E
TO−92
3 LEAD
CASE 29−11
PIN CONFIGURATIONS
1
RESET
2
V_CC
3
NC
4
GND
8
NC
7
NC
6
NC
5
NC
SO−8
(Top View)
RESET
GND
V_CC
2
4
1
3
SOT−223
(Top View)
GND
123
123
(Top View)
123
TO−92
ASM1233D−L
ASM1233D
TO−92
ASM1233M
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
1
August, 2011 − Rev. 3
Publication Order Number:
ASM1233D/D