M37477M4 Datasheet, PDF (1/47 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

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.
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)
FEATURES
qBasic machine-language instructions ...................................... 71
qMemory size
ROM .............................. 8192 bytes (M37477M4, M37478M4)
RAM ................................ 192 bytes (M37477M4, M37478M4)
qThe minimum instruction execution time
...................................... 0.5µs (at 8MHz oscillation frequency)
qPower source voltage
.......... 2.7 to 4.5V (at 2.2VCC – 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)
PIN CONFIGURATION (TOP VIEW)
P17/SRDY
P16/SCLK
P15/TXD
P14/RXD
P13/T1
P12/T0
P11
P10
P23/IN3
P22/IN2
P21/IN1
P20/IN0
VREF
XIN
XOUT
VSS
1
32
2
31
3
30
4
29
5
28
6
27
7
26
8
25
9
24
10
23
11
22
12
21
13
20
14
19
15
18
16
17
Outline 32P4B
P07
P06
P05
P04
P03
P02
P01
P00
P41
P40
P33/CNTR1
P32/CNTR0
P31/INT1
P30/INT0
RESET
VCC
P17/SRDY
P16/SCLK
P15/TXD
P14/RXD
P13/T1
P12/T0
P11
P10
P23/IN3
P22/IN2
P21/IN1
P20/IN0
VREF
XIN
XOUT
VSS
1
32
2
31
3
30
4
29
5
28
6
27
7
26
8
25
9
24
10
23
11
22
12
21
13
20
14
19
15
18
16
17
Outline 32P2W-A
P07
P06
P05
P04
P03
P02
P01
P00
P41
P40
P33/CNTR1
P32/CNTR0
P31/INT1
P30/INT0
RESET
VCC
Note : The only differences between the 32P4B package prod-
uct and the 32P2W-A package product are package
shape and absolute maximum ratings.
APPLICATIONS
Audio-visual equipment, VCR, Tuner,
Office automation equipment