MITSUBISHI MICROCOMPUTERS
M37902FCCHP, M37902FGCHP, M37902FJCHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
PIN DESCRIPTION (FLASH MEMORY SERIAL I/O MODE)
Pin
Name
VCC, VSS
MD0
MD1
_____
RESET
XIN
XOUT
BYTE
VCONT
AVcc, AVss
VREF
P00–P07
P10–P17
P20–P27
P30–P33
P40,
P44– P47
P41
P42
P43
P50–P57
P60–P67
P70–P77
P80–P87
P100–P107
P110–P117
NMI
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
Input
/Output
—
Input
Input
Input
Input
Output
Input
—
—
Input
Input
Input
Input
Input
Input
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 kΩ to 100 kΩ.
The reset input pin.
Connect a ceramic resonator between the XIN and XOUT pins, or input an external
clock from the XIN pin with the XOUT 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 VSS–VCC. (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
I/O
Output
Input
Input
Input
Input
Input
Input
Input
This is an input pin for a serial clock.
This is an I/O pin for serial data. Connect this pin to VCC via a resistor (about 1 kΩ).
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.
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