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參數(shù)資料
| 型號(hào)： | SP805RCN |
| 英文描述： | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| 中文描述： | 3.0V/3.3V低功耗微處理器監(jiān)控與電池開關(guān)過 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 233K |
| 代理商： | SP805RCN |
SP690T/S/R DS/10 SP690T/S/R, 802/T/S/R, 804T/S/R, 805T/S/R Low Power Microprocessor Supervisory
Copyright 2000 Sipex Corporation
6
PIN ASSIGNMENTS
Pin 1 —V
— Output Supply Voltage for
CMOS RAM. When V
is above the
reset threshold, V
connects to V
through a P-channel MOSFET switch.
When V
CC
falls below the V
and
V
BATTERY
connects to V
OUT
.
Connect to V
CC
Pin 2 — V
CC
— +5V Supply Input
Pin 3 — GND — Ground reference for all
signals
Pin 4 — PFI — Power-Fail Comparator Input.
When PFI is less than 1.25V or when V
falls below the V
, PFO goes LOW,
otherwise PFO remains HIGH. Connect
to GND if unused.
Pin 5 — PFO — Power-Fail Comparator
Output. Leave open if unused.
Pin 6 — WDI — Watchdog Input. If WDI
remains HIGH or LOW for 1.6 seconds,
the internal watchdog timer triggers a
reset. The internal watchdog timer clears
when reset is asserted or WDI sees a
rising or falling edge.
The watchdog
function cannot be disabled.
Pin 7 for
SP690_/802_ only
— Active-LOW
Reset Output. — Whenever RESET is
triggered by a watchdog timeout, it goes
LOW for 200ms. It stays LOW whenever
V
is below the reset threshold and re-
mains LOW for 200ms after V
rises
above the reset threshold or when the
watchdog triggers a reset.
Pin 7 for
SP804_/805_ only
— Active-HIGH
Open-Drain Reset Output. — The
inverse operation of RESET.
Pin 8 — V
— Backup-Battery Input.
When V
falls below V
SW
and V
BATTERY
,
V
switchesfrom V
to V
.
When V
rises above the reset threshold,
V
reconnects to V
. V
BATTERY
may
exceed V
CC
. Connect to V
CC
is used.
V
OUT
V
CC
GND
PFI
V
BATTERY
RESET / RESET*
WDI
PFO
1
2
3
4
5
6
7
8
*
SP804T/S/R and SP805T/S/R only
SP690T/S/R
SP802T/S/R
SP804T/S/R
SP805T/S/R
PINOUT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP805RCP | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805REN | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805REP | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805SCN | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP805RCP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805REN | 制造商:Exar Corporation 功能描述:Power Supply Supervisor Circuit, 8 Pin, Plastic, SOP |
| SP805REP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805S | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805SCN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
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