M37902FCCHP, M37902FGCHP, M37902FJCHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
8
PIN DESCRIPTION (FLASH MEMORY SERIAL I/O MODE)
V
CC
, V
SS
MD0
MD1
RESET
X
IN
X
OUT
BYTE
V
CONT
AVcc, AVss
V
REF
P0
0
–
P0
7
P1
0
–
P1
7
P2
0
–
P2
7
P3
0
–
P3
3
P4
0,
P4
4
–
P4
7
P4
1
P4
2
P4
3
P5
0
–
P5
7
P6
0
–
P6
7
P7
0
–
P7
7
P8
0
–
P8
7
P10
0
–
P10
7
P11
0
–
P11
7
NMI
Pin
Power supply input
MD0
MD1
Reset input
Clock input
Clock output
BYTE
Filter circuit connection
Analog supply input
Reference voltage input
Input port P0
Input port P1
Input port P2
Input port P3
Input port P4
SCLK input
SDA I/O
BUSY output
Input port P5
Input port P6
Input port P7
Input port P8
Input port P10
Input port P11
Non-maskable interrupt
Name
—
Input
Input
Input
Input
Output
Input
—
—
Input
Input
Input
Input
Input
Input
Input
I/O
Output
Input
Input
Input
Input
Input
Input
Input
Input
/Output
Functions
Apply 5 V ± 0.5 V to Vcc, and 0 V to Vss.
Connect this pin to Vss.
Connect this pin to Vss via a resistor of 10 k
to 100 k
.
The reset input pin.
Connect a ceramic resonator between the X
IN
and X
OUT
pins, or input an external
clock from the X
IN
pin with the X
OUT
pin left open.
Connect this pin to Vcc or Vss. (This is not used in the flash memory serial I/O mode.)
Connect this pin to the filter circuit, or leave this pin open. (This is not used in the flash memory serial I/O mode.)
Connect AVcc to Vcc, and AVss to Vss.
Input an arbitrary level within the range of V
SS
–
V
CC
. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
This is an input pin for a serial clock.
This is an I/O pin for serial data. Connect this pin to V
CC
via a resistor (about 1 k
).
This is an output pin for the BUSY signal.
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
or
“
L
”
, or leave them open. (This is not used in the flash memory serial I/O mode.)
Input
“
H
”
, or leave this pin open.