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25. Flash Memory Version
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Table 25.7 Pin Description (Flash Memory Standard Serial I/O Mode)
I/O
Supply
Symbol
Function
Description
Type Voltage
VCC
Power supply
I
–
Apply the guaranteed program/erase supply voltage to the VCC1 pin.
VSS
input
Apply 0 V to the VSS pin
CNVSS
IVCC1
Connect this pin to VCC1
_______
RESET
Reset input
I
VCC1
Reset input pin. Apply 20 or more clock cycles to the XIN pin while "L"
____________
is applied to the RESET pin
XIN
Clock input
I
VCC1
Connect a ceramic resonator or crystal oscillator between XIN
and XOUT
XOUT
Clock output
O
VCC1
To use the external clock, input the clock from XIN and leave XOUT
open
BYTE
BYTE input
I
VCC1
Connect this pin to VSS or VCC1
AVCC
Analog power
I
–
Connect AVCC to VCC1
AVSS
supply input
Connect AVSS to VSS
VREF
Reference
I
–
Reference voltage input pin for the A/D converter
voltage input
P00 to P07
Input port P0
I
VCC2
Apply "H" or "L" to this pin, or leave open
P10 to P17
Input port P1
I
VCC2
Apply "H" or "L" to this pin, or leave open
P20 to P27
Input port P2
I
VCC2
Apply "H" or "L" to this pin, or leave open
P30 to P37
Input port P3
I
VCC2
Apply "H" or "L" to this pin, or leave open
P40 to P47
Input port P4
I
VCC2
Apply "H" or "L" to this pin, or leave open
P50
___
CE input
I
VCC2
Apply "H" to this pin
P55
_____
EPM input
I
VCC2
Apply "L" to this pin
P51 to P54
Input port P5
I
VCC2
Apply "H" or "L" to this pin, or leave open
P56, P57
P60 to P63
Input port P6
I
VCC1
Apply "H" or "L" to this pin, or leave open
P64
BUSY output
O
VCC1
Standard serial I/O mode 1: BUSY signal output pin
Standard serial I/O mode 2: Program running verify monitor
Standard serial I/O mode 3: Leave open
P65
SCLK input
I
VCC1
Standard serial I/O mode 1: Serial clock input pin
Standard serial I/O mode 2, 3: Apply "L" to this pin
P66
RxD
I
VCC1
Standard serial I/O mode 1, 2: Serial data input pin
Data input
Standard serial I/O mode 3: Apply "H" to this pin
P67
TxD
O
VCC1
Standard serial I/O mode 1, 2: Serial data output pin
Data output
Standard serial I/O mode 3: Leave open
P70 to P75
Input port P7
I
VCC1
Apply "H" or "L" to this pin, or leave open
P76
CAN output
O
VCC1
Standard serial I/O mode 1, 2: Apply "H" or "L" to this pin, or leave open
Standard serial I/O mode 3: CAN output pin
P77
CAN input
I
VCC1
Standard serial I/O mode 1, 2: Apply "H" or "L" to this pin, or leave open
Standard serial I/O mode 3: CAN input pin
P80 to P84
Input port P8
I
VCC1
Apply "H" or "L" to this pin, or leave open
P86, P87
P85
____
NMI input
I
VCC1
Connect this pin to VCC1
P90 to P97
Input port P9
I
VCC1
Apply "H" or "L" to this pin, or leave open
P100 to P107 Input port P10
I
VCC1
Apply "H" or "L" to this pin, or leave open
P110 to P114 Input port P11
I
VCC2
Apply "H" or "L" to this pin, or leave open(1)
P120 to P127 Input port P12
I
VCC2
Apply "H" or "L" to this pin, or leave open(1)
P130 to P137 Input port P13
I
VCC2
Apply "H" or "L" to this pin, or leave open(1)
P140 to P146 Input port P14
I
VCC1
Apply "H" or "L" to this pin, or leave open(1)
P150 to P157 Input port P15
I
VCC1
Apply "H" or "L" to this pin, or leave open(1)
NOTES:
1. These pins are provided in the 144-pin package only.