7477 datasheet(15/361 Pages) RENESAS

15 / 361 page

7470/7471/7477/7478 GROUP USER’S MANUAL

1-8

Functions

71 (69 basic instructions of 740 family and 2 multiplication

and division instructions)

0.5

µs (the minimum instructions, at 8 MHz clock input

oscillation frequency)

8 MHz (max.)

4096 bytes

8192 bytes

16384 bytes

128 bytes

192 bytes

384 bytes

8-bit

2-bit

4-bit

8-bit ! 1 (operable in UART mode)

8-bit timer ! 4

1 (in common with 2 timer)

8-bit ! 1 (4 channels)

64 level max.

96 level max.

192 level max.

5 external interrupts, 7 internal interrupts, 1 software interrupt

Built-in circuit with internal feedback resistor (an external

ceramic resonator or a quartz-crystal oscillator)

2.7 V to 4.5 V

(at (2.2 VCC–2) MHz clock input oscillation frequency)

4.5 V to 5.5 V

(at 8 MHz clock input oscillation frequency)

35 mW typ.

(at 8 MHz clock input oscillation frequency)

5 V

–5 mA to +10 mA (P0, P1, P4: CMOS 3-state)

–20

°C to +85 °C (–40 °C to +85 °C for extended operating temperature version)

CMOS silicon gate

M37477M2

M37477M4

M37477M8/E8

M37477M2

M37477M4

M37477M8/E8

Table 1.3.3 Performance overview of 7477 group

Number of basic instructions

Instruction execution time

Clock input oscillation frequency

Parameter

Input/

Output

port

Serial I/O

Timers

PWM

A-D converter

ROM

RAM

I/O

Input

Clock generating circuit

Power source voltage

Power dissipation

Input/Output withstand voltage

Output current

Interrupt

M37477M2

M37477M4

M37477M8/E8

Subroutine nesting

M37477Mx/E8-XXXSP

M37477Mx/E8TXXXSP

M37477Mx/E8-XXXFP

M37477Mx/E8TXXXFP

Input/Output

characteristics

Operating temperature

Device structure

Package

32-pin shrink plastic molded DIP

32-pin plastic molded SOP

Memory

size

HARDWARE

1.3 Performance overview

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