參數(shù)資料
型號(hào): UPD75312A
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): 22/62頁(yè)
文件大?。?/td> 577K
代理商: UPD75312A
μ
PD75312(A), 75316(A)
22
Selector
Output
buffer
PCL/P22
Bit 2 of PMGB
PORT2.2
Port 2 input/
output mode
specification
bit
P22 output
latch
Internal bus
CLOM3
0
CLOM1 CLOM0 CLOM
4
Φ
f
X
/2
3
f
X
/2
4
f
X
/2
6
From the
clock
generator
Fig. 5-2 Clock Output Circuit Configuration
Remarks:
A measures to prevent outputting narrow width pulse when selecting clock output enable/
disable is taken.
5.3
CLOCK OUTPUT CIRCUIT
The clock output circuit outputs clock pulse from the P22/PCL pin. This clock pulse is used for the remote
control output, peripheral LSIs, etc.
Clock output (PCL) :
Φ
, 524, 262, 65.5 kHz (operating at 4.19 MHz)
Buzzer output (BUZ
) : 2 kHz (operating at 4.19 MHz or 32.768 kHz)
Fig. 5-2 shows the clock output circuit configuration.
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