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4508 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
REJ03B0148-0103
Rev.1.03
2009.07.27
DESCRIPTION
The 4508 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
µ
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
ROM (PROM) size
(✕ 10 bits)
4096 words
4096 words
4096 words
4096 words
4096 words
4096 words
4096 words
4096 words
●
Key-on wakeup function pins ................................................... 12
●
Input/Output port ...................................................................... 14
●
A/D converter
10-bit successive comparison method ........................ 4 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.
RAM size
(✕ 4 bits)
256 words
256 words
256 words
256 words
256 words
256 words
256 words
256 words
Part number
M34508G4FP (Note)
M34508G4-XXXFP
M34508G4HFP (Note)
M34508G4H-XXXFP
M34508G4GP (Note)
M34508G4-XXXGP
M34508G4HGP (Note)
M34508G4H-XXXGP
Note:
Shipped in blank
Package
PRSP0020DA-A
PRSP0020DA-A
PRSP0020DA-A
PRSP0020DA-A
PLSP0020JB-A
PLSP0020JB-A
PLSP0020JB-A
PLSP0020JB-A
ROM type
QzROM
QzROM
QzROM
QzROM
QzROM
QzROM
QzROM
QzROM
PIN CONFIGURATION
V
DD
V
SS
X
IN
X
OUT
CNV
SS
RESET
P2
1
/A
IN1
P2
0
/A
IN0
D
3
/A
IN5
D
2
/A
IN4
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
P0
0
/S
IN
P0
1
/S
OUT
P0
2
/S
CK
P0
3
P1
0
P1
1
/CNTR1
P1
2
/CNTR0
P1
3
/INT
D
0
D
1
Outline FP: PRSP0020DA-A (20P2N-A)
GP: PLSP0020JB-A (20P2F-A)
Pin configuration (top view) (4508 Group)
M34508G4-XXXFP/GP
M34508G4FP/GP
M34508G4H-XXXFP/GP
M34508G4HFP/GP
Rev.1.03 2009.07.27
REJ03B0148-0103
page 1 of 140
4508 Group
PERFORMANCE OVERVIEW
Parameter
Number of
basic instructions
M34508G4
M34508G4H
Minimum instruction execution time
Memory sizes ROM
RAM
Input/Output D
0
–D
3
ports
I/O
131
132
0.5
µ
s (at 6 MHz oscillation frequency, in through mode)
4096 words
✕
10 bits
256 words
✕
4 bits
Four independent I/O ports.
Input is examined by skip decision.
Ports D
2
and D
3
are equipped with a pull-up function and a key-on wakeup function.
Both functions can be switched by software.
Ports D
2
and D
3
are also used as A
IN4
, and A
IN5
, respectively.
4-bit I/O port; each pin is equipped with a pull-up function and a key-on wakeup function.
Both functions and output structure can be switched by software.
Ports P0
0
, P0
1
and P0
2
are also used as S
IN
, S
OUT
and S
CK
, respectively.
4-bit I/O port; each pin is equipped with a pull-up function and a key-on wakeup function.
Both functions and output structure can be switched by software.
Ports P1
1
, P1
2
and P1
3
are also used as CNTR1, CNTR0 and INT, respectively.
2-bit I/O port; each pin is equipped with a pull-up function and a key-on wakeup function.
Both functions and output structure can be switched by software.
Ports P2
0
and P2
1
are also used as A
IN0
and A
IN1
, respectively.
Two independent I/O; CNTR1 and CNTR0 pins are also used as ports P1
1
and P1
2
, respectively.
1-bit input; INT pin is also used as port P1
3
.
Three independent I/O;
S
IN
, S
OUT
, and S
CK
are also used as ports P0
0
, P0
1
, and P0
2
, respectively.
Four independent input; A
IN0
, A
IN1
, A
IN4
, A
IN5
are also used as P2
0
, P2
1
, D
2
and D
3
, respectively.
8-bit programmable timer/event counter with two reload registers and PWM output function.
8-bit programmable timer/event counter with two reload registers and PWM output function.
16-bit timer (fixed dividing frequency) (for watchdog)
10-bit wide, This is equipped with an 8-bit comparator function.
4 channel (A
IN0
, A
IN1
, A
IN4
, A
IN5
pins)
8-bit
✕
1
Typ. 2.6 V (Ta = 25 °C)
Typ. 2.7 V (Ta = 25 °C)
Built-in type
5 (one for external, two for timer, one for A/D, one for Serial interface)
1 level
8 levels
CMOS silicon gate
FP: 20-pin plastic molded SOP (PRSP0020DA-A)
GP: 20-pin plastic molded SSOP (PLSP0020JB-A)
–20 °C to 85 °C
1.8 V to 5.5 V (It depends on operation source clock, oscillation frequency and operating mode.)
2.2 mA (Ta = 25°C, V
DD
= 5.0 V, f(X
IN
) = 6.0 MHz, f(STCK) = f(X
IN
)/1)
0.1
µ
A (Ta = 25°C, V
DD
= 5.0 V, output transistors in the cut-off state)
Function
P0
0
–P0
3
I/O
P1
0
–P1
3
I/O
P2
0
, P2
1
I/O
CNTR0,
CNTR1
INT
Timer I/O
Timers
Interrupt input
S
IN
, S
OUT
, Serial interface
S
CK
input/output
A
IN0
, A
IN1,
Analog input
A
IN4
, A
IN5
Timer 1
Timer 2
Watchdog timer function
A/D
converter
Analog input
Serial interface
Voltage drop Reset occurrence
detection
Reset release
circuit (Note)
Power-on reset circuit (Note)
Interrupt
Sources
Nesting
Subroutine nesting
Device structure
Package
Operating temperature range
Supply voltage
Power
Active mode
dissipation
RAM back-up mode
(typical value)
Note: These circuits are equipped with only the H version.
Rev.1.03 2009.07.29
REJ03B0148-0103
page 3 of 140
ADI Reference Circuit
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