Z8F042ASJ020EG2156 Datasheet, PDF (30/280 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F082A Series
Product Specification
14
)
Table 4. Pin Characteristics (8-Pin Devices)
Symbol
Reset
Mnemonic Direction Direction
Active
Low
or
Active
High
Tristate
Output
Internal
Pull-up or
Pull-down
Schmitt-
Trigger Open Drain 5V
Input
Output Tolerance
PA0/DBG
I/O I (but can N/A
change
during
reset if key
sequence
detected)
Yes Programma-
ble
Pull-up
Yes
Yes,
Yes,
Programma- unless
ble
pull-ups
enabled
PA1
I/O
I
N/A Yes Programma- Yes
Yes,
Yes,
ble
Programma- unless
Pull-up
ble
pull-ups
enabled
RESET/
PA2
I/O
I/O
Low (in Yes Programma-
(defaults Reset
ble for PA2;
to RESET) mode)
always on for
RESET
Yes Programma- Yes,
ble for PA2; unless
always on for pull-ups
RESET enabled
PA[5:3]
I/O
I
N/A Yes Programma- Yes
Yes,
Yes,
ble
Programma- unless
Pull-up
ble
pull-ups
enabled
V_DD
N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
V_SS
N/A
N/A
N/A N/A
N/A
N/A
N/A
N/A
PS022828-0413
PRELIMINARY
Pin Characteristics