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參數(shù)資料
| 型號(hào)： | ASM708CPA-T |
| 廠商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Low Power uP Supervisor Circuits |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 274K |
| 代理商： | ASM708CPA-T |
Alliance Semiconductor
2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com
Notice: The information in this document is subject to change without notice
October 2003
rev 1.0
3/3.3/4.0 V μP Supervisor Circuits
ASM706 P/ R/ S/ T/ J
ASM708 R/ S/ T/ J
General Description
The ASM706P/R/S/T/J and ASM708R/S/T/J are cost effective
CMOS supervisor circuits that monitor power-supply and
battery voltage level, and
μ
P/
μ
C operation.
The family offers several functional options. Each device
generates a reset signal during power-up, power-down and
during brownout conditions. A reset is generated when the
supply drops below 2.63V (ASM706P/R, ASM708R), 2.93V
(ASM706S, ASM708S), 3.08V (ASM706T, ASM708T) or 4.00
(ASM706J, ASM708J). In addition, the ASM706P/R/S/T/J
feature a 1.6 second watchdog timer. The watchdog timer
output will trigger a reset if connected to MR. Floating the WDI
input pin disables the watchdog timer.
The ASM708R/S/T/J have both active-HIGH and active-LOW
reset outputs but no watchdog function. The ASM706P has the
same pin-out and functions as the ASM706R but has an active-
HIGH reset output.
A versatile power-fail circuit, useful in checking battery levels
and non-5V supplies, has a 1.25V threshold. All devices have a
manual reset input. All devices are available in 8-pin DIP, SO
and the compact MicroSO packages. The MicroSO package
requires 50% less PC board area than the conventional SO
package.
Features
Precision power supply minotor
2.63V threshold (ASM706P/R, ASM708R)
2.93V threshold (ASM706S, ASM708S)
3.08V threshold (ASM706T, ASM708T)
New 4.00V threshold (ASM706J , ASM708J)
Debounced manual reset input
Auxiliary voltage monitor comparator
1.25V threshold
Battery monitor / auxiliary supply monitor
Watchdog timer (ASM706P/R/S/T/J)
Watchdog can be disabled by floating WDI
200ms reset time delay
Three reset signal options
Active HIGH: ASM706P
Active LOW: ASM706R/S/T/J
Active HIGH and LOW outputs: ASM708R/S/T/J
DIP, SO and MicroSO packages
Guaranteed RESET assertion to V
CC
= 1.1V
Applications
Computers and embedded controllers
CTI applications
Automotive systems
Portable/Battery-operated systems
Intelligent instruments
Wireless communication systems
PDAs and hand-held equipment
Safety systems
Typical Operating Circuit
+3.3V Regulator
V
CC
PFI
MR
(RESET)
WDI
WDO
PFO
V
CC
(RESET)
I/O LINE
NMI
INTERRUPT
Unregulated DC
R
1
R
2
μP
ASM706 R/S/T
ASM708 R/S/T
(ASM706 P)
RESET
RESET
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ASM708CPAF | Low Power uP Supervisor Circuits |
| ASM708CPAF-T | Low Power uP Supervisor Circuits |
| ASM708CSA | Low Power UP Supervisor Circuits |
| ASM708CSA-T | Low Power uP Supervisor Circuits |
| ASM708CSAF | Low Power uP Supervisor Circuits |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ASM708CSA | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:Low Power μP Supervisor Circuits |
| ASM708CSAF | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:Low Power μP Supervisor Circuits |
| ASM708CSAF-T | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Low Power uP Supervisor Circuits |
| ASM708CSA-T | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Low Power uP Supervisor Circuits |
| ASM708CUA | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Low Power uP Supervisor Circuits |
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