D78054 データシートの表示（PDF） - NEC => Renesas Technology

部品番号

コンポーネント説明

メーカー

D78054

8-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD78001B(A), 78002B(A)

5.4 CLOCK OUTPUT CONTROL CIRCUIT

The clock with the following frequencies can be output for clock output.

• 39.1 kHz/78.1 kHz/156 kHz/313 kHz/625 kHz/1.25 MHz (Main system clock: at 10.0 MHz operation)

• 32.768 kHz (Subsystem clock: at 32.768 kHz operation)

Fig. 5-5 Clock Output Control Block Diagram

fX/2 3

fX/2 4

fX/2 5

fX/2 6

fX/2 7

fX/2 8

fXT

Selector

Synchronization

Circuit

Output Control

Circuit

PCL/P35

5.5 BUZZER OUTPUT CONTROL CIRCUIT

The clock with the following frequencies can be output for buzzer output.

• 2.4 kHz/4.9 kHz/9.8 kHz (Main system clock: at 10.0 MHz operation)

Fig. 5-6 Buzzer Output Control Block Diagram

fX/210

fX/211

fX/212

Selector

Output Control

Circuit

BUZ/P36

20

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