HD404324UFS View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

HD404324UFS

4-bit HMCS400-series microcomputer

Renesas Electronics 

Non-Time-Base

Peripheral Function

Clock (øPER)

Operating

Stopped

HD404328 Series

System Clock (øCPU)

Operating

Stopped

Active mode

Standby mode

Subactive mode

—

Watch mode (TMA3 = 1)

Stop mode (TMA3 = 0)

Table 20 Operations in Low-Power Dissipation Modes

Function

Stop Mode

Watch Mode

Standby Mode

Subactive Mode*3

CPU

Reset

Retained

Retained

OP

RAM

Retained

Retained

Retained

OP

Timer A

Reset

OP

OP

OP

Timer B

Reset

Stopped

OP

OP

Timer C

Reset

Stopped

OP

OP

Serial interface

Reset

Stopped*3

OP

OP

LCD

Reset

OP

OP

OP

I/O

Reset*1

Retained

Retained

OP

A/D

Reset

Stopped

OP

Stopped

Zero-crossing

Stopped*4

Stopped*4

OP

OP

detection

Notes: OP: indicates 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. The bias circuits still operate when the D8/ZCD/EVENT pin is set to ZCD.

27

Share Link: