4250 datasheet(4/59 Pages) RENESAS

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MITSUBISHI MICROCOMPUTERS

4250 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

PERFORMANCE OVERVIEW

Function

1.0

µs (at 4.0 MHz system clock frequency) (Refer to the electrical characteristics because

the minimum instruction execution time depends on the supply voltage.)

2048 words ! 9 bits

64 words ! 4 bits

Four independent I/O ports; ports D2 and D3 are also used as ports C and K, respectively.

4-bit I/O port

1-bit I/O port; port C is also used as port D2.

1-bit I/O port; port K is also used as port D3.

2-bit I/O port

4-bit I/O port; ports G0 and G1 are also used as pins INT and TOUT.

Interrupt input; INT pin is also used as port G0.

Timer output; TOUT pin is also used as port G1.

8-bit timer with a reload register

2 (one for external and one for timer)

1 level

CR oscillation circuit (a capacitor and a resistor connected externally)

Frequency error:

±17 %

(VDD = 5 V

± 10 %, VDD = 3 V ± 10 %, the error of the external capacitor and resistor excluded)

4 levels

CMOS silicon gate

20-pin plastic molded SOP (20P2N-A)

–20

°C to 85 °C

2.2 V to 5.5 V (Refer to the electrical characteristics because the supply voltage depends on

the system clock frequency.)

1.5 mA

(at 4.0 MHz system clock frequency, VDD = 5 V, output transistors in the cut-off state)

0.1

µA (at room temperature, VDD = 5 V, output transistors in the cut-off state)

Parameter

Number of basic instructions

Minimum instruction execution time

Memory sizes

Input/Output

ports

Timer

Interrupt

Oscillation circuit

Subroutine nesting

Device structure

Package

Operating temperature range

Supply voltage

Power

dissipation

(typical value)

ROM

RAM

D0–D3

S0–S3

F0, F1

G0–G3

INT

TOUT

Timer 1

Sources

Nesting

Active mode

RAM back-up mode

M34250M2/

I/O

Input

Output

4250 Datasheet(PDF) 4 Page - Renesas Technology Corp

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