4571 datasheet(4/126 Pages) RENESAS

4 / 126 page

Rev.1.02

May 25, 2007

Page 4 of 124

REJ03B0179-0102

4571 Group

PERFORMANCE OVERVIEW

Table 2

Performance overview

Parameter

Function

Number of basic instructions

M34571G4/G6 126

M34571GD

128

Minimum instruction execution time

0.5

µs (Oscillation frequency 6 MHz: through mode)

Memory sizes

ROM

M34571G4

4096 words

× 10 bits

M34571G6

6144 words

× 10 bits

M34571GD

16384 words

× 10 bits

RAM

128 words

× 4 bits

I/O port

D0–D4

I/O (Input is

examined by

skip decision)

Five independent I/O ports;

The output structure of ports D0–D3 is switched by software.

Port D4 is also used as CNTR0, respectively.

P00

−P03

I/O

4-bit I/O port; a pull-up function and a key-on wakeup function can be switched by software.

P10

−P13

I/O

4-bit I/O port; a pull-up function and a key-on wakeup function can be switched by software.

P20, P21

I/O

2-bit I/O port; a pull-up function and a key-on wakeup function can be switched by software.

Ports P20 and P21 are also used as INT0 and INT1, respectively.

P30, P31

I/O

2-bit I/O port ; the output structure is switched by software.

Output

1-bit output port (CMOS output only); port C is also used as CNTR1 pin.

Input

1-bit input port ; a key-on wakeup function can be switched by software.

CNTR0

Timer I/O

1-bit I/O port ; CNTR0 pin is also used as port D4.

CNTR1

Timer output

1-bit output port ; CNTR1 pin is also used as port C.

INT0, INT1 Interrupt input

1-bit input port ; INT0 and INT1 are also used as ports P20 and P21, respectively.

Timer

Timer 1

8-bit timer with a reload register and carrier wave output auto-control function, and has

an event counter.

Timer 2

8-bit timer with a reload register.

Timer 3

8-bit timer with two reload registers and carrier wave generation function.

Watchdog timer

16-bit timer, fixed dividing frequency (timer for monitor)

Power-on reset circuit

Built-in

Voltage drop

detection circuit

Reset occurrence

Typ. 1.65 V (Ta=25 °C)

Reset release

Typ. 1.75 V (Ta=25 °C)

Interrupt occurrence

Typ. 1.85 V (Ta=25 °C)

Interrupt

Source

6 sources (two for external, three for timers, voltage drop detection circuit)

Nesting

1 level

Subroutine nesting

8 levels

Device structure

CMOS sillicon gate

Package

24-pin plastic molded SSOP (PRSP0024GA-A)

Operating temperature range

-20 to 85 °C

Power source voltage

1.8 to 5.5 V (It depends on oscillation frequency and operation mode)

Power

dissipation

(Typ. value)

At active mode

0.3 mA (Ta = 25 °C, VDD = 3.0 V, f(XIN)=4 MHz, f(STCK)=f(XIN)/8)

At RAM back-up

0.1

µA (Ta = 25 °C, output transistor is cut-off state)

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