HD404849FS datasheet(31/127 Pages) RENESAS

tên linh kiện	HD404849FS

Giải thích chi tiết về linh kiện	4-Bit Single-Chip Microcomputer

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HD404849 Series

Table 20 Operations in Low-Power Dissipation Modes

Function

Stop Mode

Watch Mode

Standby Mode

Subactive Mode*

CPU

Reset

Retained

RAM

Retained

Timer A

Reset

Timer B

Reset

Stopped

Timer C

Reset

Stopped

Timer D

Reset

Stopped

Serial

Reset

Stopped*

A/D

Reset

Stopped

LCD

Reset

OP*

I/O

Reset*

Retained

Notes: OP implies in operation.

1. Output pins are at high impedance.

2. Subactive mode is an optional function specified on the function option list.

3. Transmission/reception is activated if a clock is input in external clock mode. However,

interrupts stop.

4. When a 32-kHz clock source is used.

Table 21 I/O Status in Low-Power Dissipation Modes

Output

Input

Standby Mode, Watch Mode

Stop Mode

Active Mode, Subactive Mode

0–D 8

Retained

High impedance

Input enabled

10, D11

—

Input enabled

R0–R3, R6, R7

Retained or output of peripheral

functions

High impedance

Input enabled

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