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M37477M4-260SP Datasheet

  • M37477M4-260SP

  • SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

  • 47頁

  • MITSUBISHI   MITSUBISHI

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MITSUBISHI MICROCOMPUTERS
7477/7478 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 7477/7478 group is the single-chip microcomputer designed
with CMOS silicon gate technology.
The single-chip microcomputer is useful for business equipment
and other consumer applications.
In addition to its simple instruction set, the ROM, RAM, and I/O
addresses are placed on the same memory map to enable easy
programming.
In addition, built-in PROM type microcomputers with built-in elec-
trically writable PROM, and additional functions equivalent to the
mask ROM version are also available.
7477/7478 group products are shown noted below.
The 7477 and the 7478 differ in the number of I/O ports, package
outline, and clock generating circuit only.
PIN CONFIGURATION (TOP VIEW)
P1
7
/S
RDY
P1
6
/S
CLK
P1
5
/T
X
D
P1
4
/R
X
D
P1
3
/T
1
P1
2
/T
0
P1
1
P1
0
P2
3
/IN
3
P2
2
/IN
2
P2
1
/IN
1
P2
0
/IN
0
V
REF
X
IN
X
OUT
V
SS
1
2
3
4
5
32
31
30
29
28
6
7
8
9
10
11
12
13
14
15
16
27
26
25
24
23
22
21
20
19
18
17
Product
M37477M4-XXXSP/FP
M37477M8-XXXSP/FP
M37477E8SP/FP
M37477E8-XXXSP/FP
M37478M4-XXXSP/FP
M37478M8-XXXSP/FP
M37478E8SP/FP
M37478E8-XXXSP/FP
M37478E8SS
Version
Mask ROM version
One Time PROM version
(Built-in PROM type microcomputers)
Mask ROM version
One Time PROM version
(Built-in PROM type microcomputers)
PROM version
(Built-in PROM type microcomputer)
P0
7
P0
6
P0
5
P0
4
P0
3
P0
2
P0
1
P0
0
P4
1
P4
0
P3
3
/CNTR
1
P3
2
/CNTR
0
P3
1
/INT
1
P3
0
/INT
0
RESET
V
CC
Outline 32P4B
M37477M4-XXXSP
M37477M8-XXXSP
M37477E8-XXXSP
FEATURES
qBasic
machine-language instructions ...................................... 71
qMemory
size
ROM .............................. 8192 bytes (M37477M4, M37478M4)
RAM ................................ 192 bytes (M37477M4, M37478M4)
qThe
minimum instruction execution time
...................................... 0.5碌s (at 8MHz oscillation frequency)
qPower
source voltage
.......... 2.7 to 4.5V (at 2.2V
CC
鈥?2.0MHz oscillation frequency)
............................. 4.5 to 5.5V (at 8MHz oscillation frequency)
qPower
dissipation in normal mode
.................................... 35mW (at 8MHz oscillation frequency)
qSubroutine
nesting
................................. 96 levels max. (M37477M4, M37478M4)
qInterrupt
................................................... 13 sources, 11 vectors
q8-bit
timers ................................................................................. 4
qProgrammable
I/O ports
(Ports P0, P1, P4) .......................................... 18 (7477 group)
20 (7478 group)
qInput
ports (Ports P2, P3) .................................... 8 (7477 group)
(Ports P2, P3, P5) ............................ 16 (7478 group)
q8-bit
serial I/O ........................... 1 (UART or clock-synchronized)
q8-bit
A-D converter ................................ 4 channels (7477 group)
8 channels (7478 group)
P1
7
/S
RDY
P1
6
/S
CLK
P1
5
/T
X
D
P1
4
/R
X
D
P1
3
/T
1
P1
2
/T
0
P1
1
P1
0
P2
3
/IN
3
P2
2
/IN
2
P2
1
/IN
1
P2
0
/IN
0
V
REF
X
IN
X
OUT
V
SS
1
2
3
4
5
32
31
30
29
28
6
7
8
9
10
11
12
13
14
15
16
27
26
25
24
23
22
21
20
19
18
17
P0
7
P0
6
P0
5
P0
4
P0
3
P0
2
P0
1
P0
0
P4
1
P4
0
P3
3
/CNTR
1
P3
2
/CNTR
0
P3
1
/INT
1
P3
0
/INT
0
RESET
V
CC
Outline 32P2W-A
Note :
The only differences between the 32P4B package prod-
uct and the 32P2W-A package product are package
shape and absolute maximum ratings.
M37477M4-XXXFP
M37477M8-XXXFP
M37477E8-XXXFP
APPLICATIONS
Audio-visual equipment, VCR, Tuner,
Office automation equipment

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