D78045H データシートの表示（PDF） - NEC => Renesas Technology

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D78045H

8-BIT SINGLE-CHIP MICROCOMPUTER / UPD78044H

NEC => Renesas Technology 

µPD78044H, 78045H, 78046H

5.4 CLOCK OUTPUT CONTROL CIRCUIT

Clocks of the following frequencies can be output to the clock:

• 19.5 kHz/39.1 kHz/78.1 kHz/156 kHz/313 kHz/625 kHz (with main system clock: 5.0 MHz)

• 32.768 kHz (with subsystem clock: 32.768 kHz)

Fig. 5-6 Clock Output Control Circuit Block Diagram

f X /2 3

f X /2 4

f X /2 5

f X /2 6

f X /2 7

f X /2 8

f XT

Sync circuit

Output control circuit

PCL/P35

5.5 BUZZER OUTPUT CONTROL CIRCUIT

Clocks of the following frequencies can be output to the buzzer:

• 1.2 kHz/2.4 kHz/4.9 kHz (with main system clock: 5.0 MHz)

Fig. 5-7 Buzzer Output Control Circuit Block Diagram

f X /2 10

f X /2 11

f X /2 12

Output control circuit

BUZ/P36

20

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