MITSUBISHI MICROCOMPUTERS
7477/7478 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37478M4/M8/E8-XXXSP/FP, M37478E8SS
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Power source voltage
Input voltage XIN
Input voltage P0 – P07, P10 – P17, P2 – P27
Conditions
Ratings
–0.3 to 7
Unit
V
VCC
VI
VI
–0.3 to VCC +0.3
V
All voltages are based on VSS.
Output transistors are cut off
0
,0_____,
3, VREF
RESET
–0.3 to VCC +0.3
V
P3 – P3 , P4 – P4 , P5
0
3
0
3
0
– P5
VO
Output voltage P0 – P0 , P1
0
7
0
– P1
7
, P4
0
– P4
3
, XOUT
–0.3 to VCC +0.3
1000 (Note)
–20 to 85
V
mW
°C
Pd
Power dissipation
Ta = 25°C
Topr
Tstg
Operating temperature
Storage temperature
–40 to 150
°C
Note : 500mW for M37478M4/M8/E8-XXXFP
RECOMMENDED OPERATING CONDITIONS
(VCC = 2.7 to 5.5 V, VSS = AVSS = 0 V, Ta = –20 to 85°C unless otherwise noted)
Limits
Typ.
Symbol Parameter
Unit
V
Min.
2.7
Max.
4.5
f(XIN) = 2.2VCC – 2.0 MHz
f(XIN) = 8 MHz
Power source voltage
VCC
4.5
5
0
0
5.5
Power source voltage
VSS
V
V
Analog power source voltage
AVSS
VIH
“H” input voltage P00 – P07, P10 – P17 , P30 – P33, RESET, XIN
“H” input voltage P20 – P27, P40 – P43, P50 – P53 (Note 1)
“L” input voltage P00 – P07, P10 – P17, P30 – P33
“L” input voltage P20 – P27, P40 – P43, P50–P53 (Note 1)
“L” input voltage RESET
0.8 VCC
VCC
VCC
V
VIH
0.7 VCC
V
VIL
0
0
0
0
0.2 VCC
V
VIL
0.25 VCC
V
VIL
V
0.12 VCC
“L” input voltage XIN
VIL
V
0.16 VCC
“H” sum output current P00 – P07, P40 – P43
“H” sum output current P10 – P17
IOH(sum)
IOH(sum)
IOL(sum)
IOL(sum)
IOH(peak)
IOL(peak)
IOH(avg)
IOL(avg)
mA
mA
mA
mA
mA
mA
mA
mA
– 30
– 30
“L” sum output current P00 – P07, P40 – P43
“L” sum output current P10 – P17
60
60
“H” peak output current P00 – P07, P10 – P17, P40 – P43
“L” peak output current P00 – P07, P10 – P17, P40 – P43
“H” average output current P00 – P07, P10 – P17, P40 – P43 (Note 2)
“L” average output current P00 – P07, P10 – P17, P40 – P43 (Note 2)
f(XIN) = 4 MHz
– 10
20
– 5
10
1
Timer input frequency CNTR
(Note 3)
0
(P32), CNTR1 (P33)
f(CNTR)
MHz
kHz
f(XIN) = 8 MHz
f(XIN) = 4 MHz
f(XIN) = 8 MHz
f(XIN) = 4 MHz
f(XIN) = 8 MHz
VCC = 2.7 to 4.5 V
VCC = 4.5 to 5.5 V
2
Use as clock
250
synchronous serial
I/O mode
Serial I/O clock input
frequency SCLK (P16)
(Note 2)
500
f(SCLK)
1
Use as UART mode
MHz
2
2.2VCC – 2
Main clock input oscillation frequency (Note 3)
f(XIN)
MHz
kHz
8
f(XCIN)
Sub-clock input oscillation frequency for clock function (Note 3,4)
32
50
Notes 1 : It is except to use P50 as XCIN.
2 : The average output current IOH (avg) and IOL (avg) are the average value during a 100ms.
3 : Oscillation frequency is at 50% duty cycle.
4 : When used in the low-speed mode, the clock oscillation frequency for clock function should be f(XCIN) < f(XIN) / 3.
43
MITSUBISHI [ Mitsubishi Group ]
