The AS690A / AS692A / AS802L / AS802M / AS805L offers complete single chip solutions for power supply monitoring and control battery functions in microprocessor systems. Each device implements four functions: Reset control, watchdog monitoring, battery-backup switching and power-failure monitoring. In addition to microprocessor reset under power-up and power.
of these four functions are:
•
•
•
•
Typical Operating Circuit
Unregulated DC Regulated +5V VCC RESET PFI R2 VBATT PFO WDI VOUT RESET NMI VCC
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R1
0.1 µF
1.6 second watchdog timer to keep microprocessor responsive 4.40V or 4.65V VCC threshold for microprocessor reset at power-up and power-down SPDT (Single-pole, Double-throw) PMOS switch connects backup power to RAM if VCC fails 1.25V threshold detector for power loss or general purpose voltage monitoring
I/O LINE
GND
+
_
ASM690A
VCC
CMOS RAM
GND
These features are pin-compatible with the industry standard power-s.
The ASM690A / ASM692A / ASM802L / ASM802M / ASM805L offers complete single chip solutions for power supply monitoring an.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | ASM802M |
Alliance Semiconductor |
(ASMxxxx) UP Power Supply Supervisor | |
2 | ASM802M |
ON Semiconductor |
uP Power Supply Supervisor | |
3 | ASM805L |
Alliance Semiconductor |
(ASMxxxx) UP Power Supply Supervisor | |
4 | ASM805L |
ON Semiconductor |
uP Power Supply Supervisor | |
5 | ASM809 |
Alliance Semiconductor Corporation |
(ASM809 / ASM810) 3 Pin Microcontroller Power Supply Supervisor | |
6 | ASM810 |
Alliance Semiconductor Corporation |
(ASM809 / ASM810) 3 Pin Microcontroller Power Supply Supervisor | |
7 | ASM811 |
Alliance Semiconductor Corporation |
(ASM811 / ASM812) 4 Pin P Voltage Supervisor | |
8 | ASM812 |
Alliance Semiconductor Corporation |
(ASM811 / ASM812) 4 Pin P Voltage Supervisor | |
9 | ASM813L |
Alliance Semiconductor Corporation |
(ASMxxxx) Low Power UP Supervisor Circuits | |
10 | ASM813L |
ON Semiconductor |
Low Power uP Supervisor Circuits | |
11 | ASM8406C |
Apuls Intergrated Circuits |
VERY LOW-COST VOICE SYNTHESIZER WITH 4-BIT MICROPROCESSOR | |
12 | ASM8412CA |
Apuls Intergrated Circuits |
VERY LOW-COST VOICE SYNTHESIZER WITH 4-BIT MICROPROCESSOR |