LC651432F Просмотр технического описания (PDF) - SANYO -> Panasonic

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Компоненты Описание

производитель

LC651432F

Four-Bit CMOS Microcontrollers for Small-Scale Control Applications

SANYO -> Panasonic 

LC651432N/F/L, 651431N/F/L

Development Support

The following are available to support the development of LC651431 and LC651432 applications.

• User’s manual

“LC6543/46 User’s Manual” No. E71

• Development tool manual

See the “EVA86000 Development Tool Manual for 4-Bit Microcontrollers.”

• Software manual

“LC65/66 Series Software Manual”

• Development tools

Program development: EVA86000 System

Program evaluation: LC65E43 on-chip EPROM microcontroller

Pins Functions

Count

1

1

1

Pin

VDD

VSS

OSC1

4 PA0 to PA3

4 PC0 to PC3

4 PD0 to PD3

I/O

—

—

Input

I/O

I/O

I/O

Power supply

Function

Options

—

Reset state

—

Handling when

unused

—

• Connection for the external system clock

1. Single-pin external clock input —

—

RC or ceramic oscillator element

2. 2-pin RC oscillator

• When a single pin is used for external clock

3. 2-pin ceramic oscillator

input, the PI0/OSC2 pin is used as the PI0

4. Divider circuit option

I/O port.

• No divider

• When a 2-pin RC oscillator or a 2-pin ceramic

• Divide-by-three circuit

oscillator is used, the PI0/OSC2 pin is used as • Divide-by-four circuit

the OSC2 oscillator pin.

• I/O port A0 to 3

1. Open-drain output

Input in 4-bit units (IP instruction)

2. Built-in pull-up resistor

Output in 4-bit units (OP instruction)

Options 1 and 2 may be specified

Test in single-bit units (BP and BNP instructions) in bit units.

Set/reset in single-bit units (SPB and RPB

instructions)

• PA3 (Any one of PA0 to 3 can be selected) is

used for standby mode control.

• Applications must assure that key bounce or

similar noise does not occur on PA3 (or PA0 to 3)

during a HALT instruction execution cycle.

• High-level

output (with

the output n-

channel

transistor off)

The open-drain

output option

must be

selected and

the pin

connected to

VSS.

• I/O port C0 to 3

Provides the same functions as PA0 to 3.

(See note.)

• The output level at reset can be specified to be

either high or low.

Note: This port does not have the standby

mode control function.

1. Open-drain output

• High-level

2. Built-in pull-up resistor

output

3. High-level output at reset

• Low-level

4. Low-level output at reset

output

• Options 1 and 2 may be specified (Specified as a

in bit units.

user option.)

• Options 3 and 4 are specified in

a single 4-bit group

The same as

that for PC0 to 3

• I/O port D0 to 3

Provides the same functions as PC0 to 3.

The same as those for PC0 to 3.

The same as The same as

those for PC0 to 3. those for PC0 to 3.

Continued on next page.

No. 6498-7/39

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