Z51F3220FNX Datasheet, PDF (24/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
5. Pin Description
Table 5-1 Normal Pin Description
PIN
Name
I/O
Function
@RESET
Shared with
P00 I/O Port 0 is a bit-programmable I/O port which can
P01
be configured as a schmitt-trigger input, a
push-pull output, or an open-drain output.
P02
A pull-up resistor can be specified in 1-bit unit.
P03
Input
EC3/DSDA
T3O/DSCL
AN0/AVREF/EINT0/T4O/PWM4AA
SEG26/AN1/EINT1/PWM4AB
P04
SEG25/AN2/EINT2/PWM4BA
P05
SEG24/AN3/EINT3/PWM4BB
P06
SEG23/AN4/EINT4/PWM4CA
P07
SEG22/AN5/EINT5/PWM4CB
P10 I/O Port 1 is a bit-programmable I/O port which can
P11
be configured as a schmitt-trigger input, a
push-pull output, or an open-drain output.
P12
A pull-up resistor can be specified in 1-bit unit.
P13
The P14 – P17 are not in the 32-pin package.
P14
Input
SEG14/AN13/RXD1/SCL1/MISO1
SEG15/AN12/EINT12/T2O/PWM2O
SEG16/AN11/EINT11/T1O/PWM1O
SEG17/AN10/EC1/BUZO
SEG18/AN9/MOSI2
P15
SEG19/AN8/MISO2
P16
SEG20/AN7/EINT7/SCK2
P17
SEG21/AN6/EINT6/SS2
P20 I/O Port 2 is a bit-programmable I/O port which can
P21
be configured as an input, a push-pull output,
or an open-drain output.
P22
A pull-up resistor can be specified in 1-bit unit.
P23
The P23 – P25 are not in the 32-pin package.
P24
Input
SEG13/AN14/TXD1/SDA1/MOSI1
SEG12/AN15/SCK1
SEG11/SS1
SEG10
SEG9
P25
SEG8
P26
SEG7
P27
SEG6
P30 I/O Port 3 is a bit-programmable I/O port which can
P31
be configured as an input, a push-pull output.
P32
A pull-up resistor can be specified in 1-bit unit.
P33
The P34 – P37 are only in the 44-pin package.
Input
COM7/SEG5
COM6/SEG4
COM5/SEG3
COM4/SEG2
P34
COM3/SEG1
P35
COM2/SEG0
P36
COM1
P37
COM0
P40 I/O Port 4 is a bit-programmable I/O port which can
P41
be configured as an input, a push-pull output,
or an open-drain output.
P42
A pull-up resistor can be specified in 1-bit unit.
P43
The P43 is only in the 44-pin package.
Input
VLC3/RXD0/SCL0/MISO0
VLC2/TXD0/SDA0/MOSI0
VLC1/SCK0
VLC0/SS0
PS029902-0212
PRELIMINARY
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