4501_M Datasheet, PDF (14/212 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES

4501 Group
HARDWARE
DESCRIPTION/FEATURES/APPLICATION
DESCRIPTION
The 4501 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
two 8-bit timers (each timer has a reload register), interrupts, and
10-bit A/D converter.
The various microcomputers in the 4501 Group include variations
of the built-in memory size as shown in the table below.
FEATURES
qMinimum instruction execution time ................................ 0.68 µs
(at 4.4 MHz oscillation frequency, in high-speed mode)
qSupply voltage ............................................................. 2.7 to 5.5 V
(System is in the reset state when the voltage is under the detection
voltage of voltage drop detection circuit)
q Timers
Timer 1 ...................................... 8-bit timer with a reload register
Timer 2 ...................................... 8-bit timer with a reload register
q Interrupt ........................................................................ 4 sources
q Key-on wakeup function pins ................................................... 12
q Input/Output port ...................................................................... 14
q A/D converter .................. 10-bit successive comparison method
q Watchdog timer
qClock generating circuit (ceramic resonator/RC oscillation)
qLED drive directly enabled (port D)
qPower-on reset circuit
q Voltage drop detection circuit ........................... VRST: Typ. 3.5 V
(Ta = 25 °C)
APPLICATION
Electrical household appliance, consumer electronic products, of-
fice automation equipment, etc.
Part number
ROM (PROM) size
(✕ 10 bits)
RAM size
(✕ 4 bits)
Package
ROM type
M34501M2-XXXFP
2048 words
128 words
PRSP0020DA-A
Mask ROM
M34501M4-XXXFP
4096 words
256 words
PRSP0020DA-A
Mask ROM
M34501E4FP (Note)
4096 words
256 words
PRSP0020DA-A
One Time PROM
Note: Shipped in blank.
Rev.2.01 Feb 07, 2005
1-2
REJ09B0192-0201