DESCRIPTION
The 4509 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 two reload registers), interrupts, 10-bit A/D
converter, Serial interface and oscillation circuit switch function.
FEATURES
● Minimum instruction execution time .................................. 0.5 s
(at 6 MHz oscillation frequency, in through-mode)
● Supply voltage .......................................................... 1.8 V to 5.5 V
(It depends on operation source clock, oscillation frequency and
operating mode.)
● Timers
Timer 1 ................................. 8-bit timer with two reload registers
Timer 2 ................................. 8-bit timer with two reload registers
● Interrupt ........................................................................ 5 sources
● Key-on wakeup function pins ................................................... 12
● Input/Output port ...................................................................... 18
Part number
M34509G4FP (Note)
M34509G4-XXXFP
M34509G4HFP (Note)
M34509G4H-XXXFP
ROM type
QzROM
Package
PRSP0024GA-A
RAM size
( 4 bits)
256 words
ROM (PROM) size
( 10 bits)
4096 words
● A/D converter
10-bit successive comparison method ........................ 6 channel
● Serial intereface ............................................................. 8-bit 1
● Voltage drop detection circuit (only for H version)
Reset occurrence .................................... Typ. 2.6 V (Ta = 25 °C)
Reset release .......................................... Typ. 2.7 V (Ta = 25 °C)
● Power-on reset circuit (only for H version)
● Watchdog timer
● Clock generating circuit (on-chip oscillator/ceramic resonator/RC
oscillation)
● LED drive directly enabled (port D)
APPLICATION
Electrical household appliance, consumer electronic products, office
automation equipment, etc.
Note: Shipped in blank.
Rev.1.03
2009.07.27
page 1 of 140
REJ03B0147-0103
4509 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
REJ03B0147-0103
Rev.1.03
2009.07.27
PIN CONFIGURATION
Pin configuration (top view) (4509 Group)
17
18
21
20
22
19
23
24
16
15
14
13
VDD
P10
P11/CNTR1
P12/CNTR0
P13/INT
P03
VSS
D4
D5
XIN
XOUT
CNVSS
P21/AIN1
P20/AIN0
RESET
D1
D0
P31/AIN3
P30/AIN2
Outline PRSP0024GA-A (24P2Q-A)
8
7
4
5
3
6
2
1
9
10
11
12
M34509G4-XXXFP
M34509G4FP
M34509G4H-XXXFP
M34509G4HFP
P02/SCK
P01/SOUT
P00/SIN
D3/AIN5
D2/AIN4