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参数资料
| 型号： | PCF1252-X |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | Threshold detector and reset generator |
| 中文描述： | 阈值检测器和复位发生器 |
| 文件页数： | 15/16页 |
| 文件大小： | 107K |
| 代理商： | PCF1252-X |
1998 Apr 16
8
Philips Semiconductors
Product specication
Threshold detector and reset generator
PCF1252-X family
Fig.8 Reset and save times as a function of the external capacitor (CCT).
(1) tR (typ.) = (0.1 + CCT) ms.
(2) tS (typ.) = (0.01 + 0.1 CCT) ms.
handbook, full pagewidth
101
10
102
103
101
102
103
10
1
102
103
1
external capacitor (nF)
MGC922
1
10
(ms)
tR(1)
(ms)
tS(2)
APPLICATION INFORMATION
Fig.9
Typical power-on reset circuit for a microcontroller/microprocessor system; (when not used, COMIN must
be connected to VDD).
handbook, full pagewidth
MICROCONTROLLER/
MICROPROCESSOR
VDD
RESET
MGC923
RESET
COMIN
PCF1252-X
SELECT
VSS
CT
(0 V)
(
+5 V)
1 nF
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