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“Standard”:
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(Note 1) “Renesas Electronics” as used in this document means Renesas Electronics Corporation and also includes its majority-
owned subsidiaries.
(Note 2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.
4552 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
REJ03B0023-0302
Rev.3.02
2006.12.22
DESCRIPTION
The 4552 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 one or two reload registers), a 16-
bit timer for clock count, interrupts, and oscillation circuit switch
function.
The various microcomputers in the 4552 Group include variations
of the built-in memory size as shown in the table below.
FEATURES
qMinimum
instruction execution time
Mask ROM version .............................................................. 0.5
µ
s
(at 6 MHz oscillation frequency, in high-speed through-mode)
One Time PROM version ................................................... 0.68
µ
s
(at 4.4 MHz oscillation frequency, in high-speed through-mode)
qSupply
voltage
Mask ROM version ...................................................... 1.8 to 5.5 V
One Time PROM version ............................................. 1.8 to 3.6 V
(It depends on operation source clock, oscillation frequency and op-
eration mode)
qTimers
Timer 1 ...................................... 8-bit timer with a reload register
Timer 2 ................................. 8-bit timer with two reload registers
Timer 3 .............................. 16-bit timer (fixed dividing frequency)
ROM (PROM) size
(✕ 10 bits)
4096 words
8192 words
8192 words
4096 words
8192 words
8192 words
qInterrupt
........................................................................ 4 sources
qKey-on
wakeup function pins ..................................................... 9
q
LCD control circuit
Segment output ........................................................................ 28
Common output .......................................................................... 4
qVoltage
drop detection circuit (only H version)
Reset occurrence .................................... Typ. 1.8 V (Ta = 25 °C)
Reset release .......................................... Typ. 1.9 V (Ta = 25 °C)
qWatchdog
timer
qClock
generating circuit
Built-in clock
(on-chip oscillator)
Main clock
(ceramic resonator/RC oscillation)
Sub-clock
(quartz-crystal oscillation)
qLED
drive directly enabled (port D)
APPLICATION
Remote control transmitter
Part number
M34552M4-XXXFP
RAM size
(✕ 4 bits)
288 words
288 words
288 words
288 words
288 words
288 words
Package
48P6S-A
48P6S-A
48P6S-A
48P6S-A
48P6S-A
48P6S-A
ROM type
Mask ROM
Mask ROM
One Time PROM
Mask ROM
Mask ROM
One Time PROM
4552 Group
M34552M8-XXXFP
M34552G8FP (Note)
M34552M4H-XXXFP
M34552M8H-XXXFP
M34552G8HFP (Note)
Note:
Shipped in blank.
Rev.3.02 Dec 22, 2006
REJ03B0023-0302
page 1 of 142
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