The ASM811/ASM812 are cost effective low power supervisors designed to monitor voltage levels of 3.0V, 3.3V and 5.0V power supplies in low-power microprocessor (µP), microcontroller (µC) and digital systems. They provide excellent reliability by eliminating external components and adjustments. A reset signal is issued if the power supply voltage drops below .
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• New 4.0V threshold option 9µA supply current Monitor 5V, 3.3V and 3V supplies Manual reset input 140ms min. reset pulse width Guaranteed over temperature Active-low reset valid with 1.1V supply (ASM811) Small 4-pin SOT-143 package No external components Power-supply transient-immune design
Applications
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• Computers and Controllers Embedded controllers Portable/Battery operated systems Intelligent instruments Wireless communication systems PDAs and handheld equipment Automotive systems Safety Systems
Typical Operating Circuit
VCC
VCC VCC µP MR RESET (RESET) G.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | ASM810 |
Alliance Semiconductor Corporation |
(ASM809 / ASM810) 3 Pin Microcontroller Power Supply Supervisor | |
2 | ASM811 |
Alliance Semiconductor Corporation |
(ASM811 / ASM812) 4 Pin P Voltage Supervisor | |
3 | ASM813L |
Alliance Semiconductor Corporation |
(ASMxxxx) Low Power UP Supervisor Circuits | |
4 | ASM813L |
ON Semiconductor |
Low Power uP Supervisor Circuits | |
5 | ASM802L |
Alliance Semiconductor |
(ASMxxxx) UP Power Supply Supervisor | |
6 | ASM802L |
ON Semiconductor |
uP Power Supply Supervisor | |
7 | ASM802M |
Alliance Semiconductor |
(ASMxxxx) UP Power Supply Supervisor | |
8 | ASM802M |
ON Semiconductor |
uP Power Supply Supervisor | |
9 | ASM805L |
Alliance Semiconductor |
(ASMxxxx) UP Power Supply Supervisor | |
10 | ASM805L |
ON Semiconductor |
uP Power Supply Supervisor | |
11 | ASM809 |
Alliance Semiconductor Corporation |
(ASM809 / ASM810) 3 Pin Microcontroller Power Supply Supervisor | |
12 | ASM8406C |
Apuls Intergrated Circuits |
VERY LOW-COST VOICE SYNTHESIZER WITH 4-BIT MICROPROCESSOR |