- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372191 > SP693A Low Power Microprocessor Supervisory with Battery Switch-Over(低功耗，微處理器監(jiān)控電路（帶電池開關）) PDF資料下載
參數(shù)資料
| 型號： | SP693A |
| 英文描述： | Low Power Microprocessor Supervisory with Battery Switch-Over(低功耗，微處理器監(jiān)控電路（帶電池開關）) |
| 中文描述： | 低功耗微處理器監(jiān)控與電池開關過（低功耗，微處理器監(jiān)控電路（帶電池開關）） |
| 文件頁數(shù)： | 8/23頁 |
| 文件大小： | 223K |
| 代理商： | SP693A |
SP691A DS/04 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over Copyright 2000 Sipex Corporation
8
PIN ASSIGNMENTS
Pin 1 — V
— Battery-Backup Input. Connect
to the external battery supply or super-
charging capacitor and charging circuit. If a
backup battery is not provided, connect this
pin to ground.
Pin 2 —V
— Output Supply Voltage. V
connects to V
when V
is greater than
V
and V
is above the reset threshold.
When V
falls below V
BATT
and V
is
below the reset threshold, V
connects to
V
. Connect a 0.1
μ
F capacitor from V
OUT
to GND.
Pin 3 — V
CC
— +5V Input Supply Voltage.
Pin 4 — GND — Ground reference for all
signals.
Pin 5 — BATT ON — Battery On Output. Goes
high when V
switches to V
. Goes low
when V
switches to V
. Connect the base
of a PNP through a current-limiting resistor
to BATT ON for V
OUT
current requirements
greater than 250mA.
Pin 6 — LOWLINE — Low Line Output. This
output pin goes LOW when V
falls below
the reset threshold voltage. This output pin
returns to it's HIGH output as soon as V
CC
rises above the reset threshold voltage.
PINOUT
Pin 7 — OSC
IN
— External Oscillator Input.
When OSC
SEL
is unconnected or driven
HIGH, a 10
μ
A pull-up connects from V
to this input pin, the internal oscillator sets
the reset and watchdog timeout periods, and
this input pin selects between fast and slow
watchdog timeout periods. When OSC
is
driven LOW, the reset and watchdog timeout
periods may be set either by a capacitor from
this input pin to ground or by an external
clock at this pin (refer to
Figure 21
).
Pin 8 — OSC
— Oscillator Select. When
OSC
is unconnected or driven HIGH, the
internal oscillator sets the reset delay and
watchdog timeout period. When OSC
is
driven LOW, the external oscillator input
pin, OSC
, is enabled (refer to
Table 1
).
This input pin has a 10
μ
A internal pull-up.
Pin 9 — PFI — Power-Fail Input. This is the
noninverting input to the power-fail
comparator. When PFI is less than 1.25V,
PFO goes low. Connect PFI to GND or
V
OUT
when not used.
Pin 10 — PFO — Power-Fail Output. This is
the output of the power-fail comparator.
PFO goes low when PFI is less than 1.25V.
This is an uncommitted comparator, and
has no effect on any other internal circuitry.
Pin 11 — WDI — Watchdog Input. This is a
three-level input pin. If WDI remains either
HIGH or LOW for longer than the watchdog
timeout period, WDO goes LOW and RESET
is asserted for the reset timeout period. WDO
remains LOW until the next transition at this
input pin. Leaving this input pin unconnected
disables the watchdog function. This input
pin connects to an internal voltage divider
between V
and ground, which sets it to
mid-supply when left unconnected.
V
BATT
V
OUT
Vcc
GND
BATT ON
PFO
PFI
OSC
IN
OSC
SEL
RESET
WDO
CE
IN
CE
OUT
WDI
LOWLINE
16
DIP/SO
TOP VIEW
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
Corporation
RESET
相關PDF資料 |
PDF描述 |
|---|---|
| SP691A | Low Power Microprocessor Supervisory with Battery Switch-Over(低功耗，微處理器監(jiān)控電路（帶電池開關）) |
| SP703 | Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP703CN | Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP703CP | Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP703EN | Low Power Microprocessor Supervisory with Battery Switch-Over |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP693ACN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP693ACN/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP693ACP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP693ACP-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP693ACT | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
發(fā)布緊急采購，3分鐘左右您將得到回復。