4571 Datasheet, PDF (1/126 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4571 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
REJ03B0179-0102
Rev.1.02
May 25, 2007
DESCRIPTION
The 4571 Group is a 4-bit single-chip microcomputer designed
with CMOS technology. Its CPU is that of the 4500 series using a
simple, high-speed instruction set. The computer is equipped
with three 8-bit timers (each timer has one or two reload
registers), interrupts, and voltage drop detection circuit.
The various microcomputers in the 4571 Group include
variations of the built-in memory size as shown in the table
below.
FEATURES
• Minimum instruction execution time..............................0.5 µs
(at 6 MHz oscillation frequency, in through-mode)
• Supply voltage .......................................................1.8 to 5.5 V
(It depends on oscillation frequency and operation mode)
• Timers
Timer 1..................................8-bit timer with a reload register
and carrier wave output auto-control function
Timer 2..................................8-bit timer with a reload register
Timer 3..................... 8-bit timer with two reload registers and
carrier wave generation circuit
• Interrupt ..................................................................... 6 sources
• Key-on wakeup function pins .............................................. 12
• I/O port ................................................................................. 17
• Output port ............................................................................. 1
• Input port ................................................................................ 1
• 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)
• Watchdog timer
• Power-on reset circuit
• Clock generating circuit (ceramic resonator)
APPLICATION
Remote control transmitter
Table 1 Support Product
Part number
M34571G4FP (Note 1)
M34571G4-XXXFP
M34571G6FP (Note 1)
M34571G6-XXXFP
M34571GDFP (Note 1)
M34571GD-XXXFP
Note 1.Shipped in blank
ROM size (× 10 bits)
4096 words
4096 words
6144 words
6144 words
16384 words
16384 words
RAM size (× 4 bits)
128 words
128 words
128 words
128 words
128 words
128 words
Package
PRSP0024GA-A
PRSP0024GA-A
PRSP0024GA-A
PRSP0024GA-A
PRSP0024GA-A
PRSP0024GA-A
QzROM
QzROM
QzROM
QzROM
QzROM
QzROM
ROM type
Rev.1.02 May 25, 2007 Page 1 of 124
REJ03B0179-0102