UPD75048CW 查看數據表（PDF） - NEC => Renesas Technology

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UPD75048CW

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75048

6.3 CLOCK OUTPUT CIRCUIT

The clock output circuit outputs clock pulse from the P22/PCL pin. This clock pulse is used for

supplying clock pulses to the remote control output, peripheral LSIs, etc.

• Clock output (PCL): Φ, 524 kHz, 65.5 kHz (at 4.19 MHz)

From the

clock

generator

F

fX/23

fX/24

fX/26

Selector

Output

buffer

PCL/P22

CLOM3 CLOM2 CLOM1 CLOM0 CLOM

PORT2.2

P22 output

latch

4

Internal bus

Bit 2 of PMGB

Port 2 input/

output mode

specification

bit

Fig. 6-2 Clock Output Circuit Configuration

Remarks: A measures to prevent outputting narrow width pulse when selecting clock output

enable/disable is taken.

24

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