參數(shù)資料
型號： 4571
廠商： Renesas Technology Corp.
英文描述： SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述： 單芯片4位微機的CMOS
文件頁數(shù)： 61/126頁
文件大?。?/td> 1627K
代理商： 4571
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
s (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.
C
Output
1-bit output port (CMOS output only); port C is also used as CNTR1 pin.
K
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
A (Ta = 25 °C, output transistor is cut-off state)
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