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参数资料
| 型号： | ILC1832M |
| 厂商： | Impala Linear Corporation |
| 英文描述： | SWITCH DIP 2POS TOP ACT SEALED |
| 中文描述： | レP监控电路 |
| 文件页数： | 4/5页 |
| 文件大小： | 78K |
| 代理商： | ILC1832M |
Pushbutton Reset Input
The PBRST input can be driven with a manual pushbutton
switch or with external logic signals. The input is internally
debounced and requires an active low signal to force the
reset outputs into their active states. The PBRST input will
recognize any pulse that is 20ms in duration or greater and
will ignore all pulses that are less than 1ms in duration.
Power Monitor
The RST and RST pins are asserted whenever V
CC
falls
below the reset threshold voltage set by the TOL pin. A 5%
tolerance level (2.88V reset threshold voltage) can be
selected by connecting the TOL pin to ground or a 10% tol-
erance (2.55V reset threshold voltage) can be selected by
connecting the TOL pin to V
CC
. The reset pins will remain
asserted for a period of 250ms after V
CC
has resen above
the reset threshold voltage. The reset function ensures the
microprocessor is properly reset and powers up into a
known condition after a power failure. RST will remain valid
with V
CC
as low as 1.4V.
Watchdog Timer
The microprocessor can be monitored by connecting the ST
pin (watchdog input) to a bus line or I/O line. If a high-to-
low transition does not occur on the ST pin within the watch-
dog timeout period set by the TD pin (see Table 1), the RST
and RST pins will be asserted rsulting in a microprocessor
reset. RST and RST will remain asserted for 250ms when
this occurs. A minimum pulse of 75ns or any transition
high-to-low on the ST pin will reset the watchdog timer. The
watchdog timer will be reset if ST sees a valid transition
within the watchdog timeout period.
RST
t
RPD
V
CCTP
V
CCTP
t
RPU
V
CC
RST
RST
t
PDLY
t
RST
PBRST
RST
t
PB
t
TD
Typ.
150 ms
600 ms
1200 ms
TD Pin
GND
Open
V
CC
Min.
62.5 ms
250 ms
500 ms
Max.
250 ms
1000 ms
2000 ms
Industry P/N
DS1832
DS1832S
ILC Direct Replacement
ILC1832N
ILC1832M
t
SD
ST
t
TD
Power-Up/Power-Down Sequence
Watchdog Input
Pushbutton Reset
μP Supervisory Circuit
Preliminary
Circuit Description
Alternate Source Reference Guide
Impala Linear Corporation
4
(408) 574-3939
www.impalalinear.com
October 1999
ILC1832 1.1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ILC1832N | 制造商:IMPALA 制造商全称:IMPALA 功能描述:レP SUPERVISORY CIRCUIT |
| IL-C2-0001 | 制造商:Japan Aviation Electronics (JAE) 功能描述: |
| IL-C2-10000 | 功能描述:集管和线壳 SOCKET CONTACT RoHS:否 产品种类:1.0MM Rectangular Connectors 产品类型:Headers - Pin Strip 系列:DF50 触点类型:Pin (Male) 节距:1 mm 位置/触点数量:16 排数:1 安装风格:SMD/SMT 安装角:Right 端接类型:Solder 外壳材料:Liquid Crystal Polymer (LCP) 触点材料:Brass 触点电镀:Gold 制造商:Hirose Connector |
| IL-C2-10000.P | 制造商:Japan Aviation Electronics (JAE) 功能描述:CUT - IL-C2-1-10000 |
| IL-C2-1-00001 | 制造商:Japan Aviation Electronics (JAE) 功能描述:10,000 PER REEL SOLD PER REEL |
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