4250 datasheet(7/59 Pages) RENESAS

7 / 59 page

MITSUBISHI MICROCOMPUTERS

4250 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

PORT FUNCTION

Control

bits

Control

instructions

SZD

CLD

SCP

RCP

SNZCP

OKA

IAK

OSA

IAS

LGOP

OGA

IAG

OFA

IAF

Control

registers

PU0

PU0, K0

Output structure

N-channel open-drain

Input/

Output

I/O

(4)

I/O

(4)

I/O

(4)

I/O

(2)

Remark

Pull-up function

(programmable)

Logic operation function

(programmable)

Key-on wakeup functions

(programmable)

Pull-up functions

Key-on wakeup functions

(only pull-up function is

programmable)

Pull-up functions

(programmable)

Key-on wakeup functions

(programmable)

D0, D1

D2/C

D3/K

S0–S3

G0/INT

G1/TOUT

G2, G3

F0, F1

Port

Port D

Port S

Port G

Port F

DEFINITION OF CLOCK AND CYCLE

• System clock

This is the source clock input to the XIN pin. Connect pins XIN

and XOUT directly. Then, pull up XIN pin through a resistor and

pull down XOUT pin through a capacitor.

• Instruction clock

The instruction clock is a signal derived by dividing the system

clock by 4, and is the basic clock for controlling this product.

• Machine cycle

One machine cycle is the time required to execute the minimum

instruction (one-cycle instruction). The machine cycle is

equivalent to the instruction clock cycle.

4250 Datasheet(PDF) 7 Page - Renesas Technology Corp

4250 Datasheet(HTML) 7 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

Datasheet Download

Link URL