參數(shù)資料
型號(hào): UPD75306BGC
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁(yè)數(shù): 23/76頁(yè)
文件大?。?/td> 572K
代理商: UPD75306BGC
μ
PD75304B,75306B,75308B
23
Remarks
Consideration is given so that a low amplitude pulse is not output when switching between clock
output enable and disable.
5.3
CLOCK OUTPUT CIRCUIT
The clock output circuit is a circuit which outputs a clock pulse from P22/PCL pin and is used to supply clock
pulses to remote control outputs or peripheral LSI’s.
Clock output (PCL) :
Φ
524, 262, 65.5 kHz (at 4.19 MHz operation)
Buzzer output (BUZ): 2 kHz (at 4.19 MHz or 32.768 kHz operation)
The configuration of the clock output circuit is shown below.
Fig. 5-2 Clock Output Circuit Configuration
CLOM3
CLOM1CLOM0
0
Φ
Internal Bus
CLOM
P22
Output Latch
PORT2.2
Bit 2 of PMGB
Bit Specified
In Port 2
Input/Output
Mode
Output Buffer
PCL/P22
f
X
/2
3
f
X
/2
4
f
X
/2
6
4
Selector
From Clock
Generator
相關(guān)PDF資料
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