參數(shù)資料
型號(hào): MC14536BF
廠商: ON SEMICONDUCTOR
元件分類: XO, clock
英文描述: Programmable Timer
中文描述: 1 TIMER(S), PROGRAMMABLE TIMER, PDSO16
封裝: EIAJ, PLASTIC, SOIC-16
文件頁數(shù): 11/13頁
文件大?。?/td> 330K
代理商: MC14536BF
MOTOROLA CMOS LOGIC DATA
11
MC14536B
Figure 11. Time Interval Configuration Using On–Chip RC Oscillator and
Reset Input to Initiate Time Interval
(Divide–by–2 Configured)
NOTE: This circuit is designed to use the on–chip oscillation function. The oscillator frequency is deter-
mined by the external R and C components. When power is first applied to the device, Decode Out
initializes to a high state. Because this output is tied directly to the Osc–Inh input, the oscillator is
disabled. This puts the device in a low–current standby condition. The rising edge of the Reset pulse
will cause the output to go low. This in turn causes Osc–Inh to go low. However, while Reset is high,
the oscillator is still disabled (i.e.: standy condition). After Reset goes low, the output remains low
for 2n/2 of the oscillator’s period. After the part times out, the output again goes high.
PULSE
GEN.
8–BYPASS
A
B
C
D
RESET
SET
CLOCK INH
MONO–IN
CLOCK INH
IN1
VSS
DECODE OUT
OUT 2
OUT 1
8
16
+V
6
9
10
11
12
2
14
15
1
7
3
13
5
4
VDD
RS
RTC
C
OUT 2
OUT 1
RESET
POWER UP
Rs
F
R
C
DECODE OUT
tw
Rtc
= Hz
= Ohms
= FARADS
fosc
1
2.3RtcC
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