Z8F042ASJ020EG2156 Datasheet, PDF (29/280 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F082A Series
Product Specification
13
Table 3. Pin Characteristics (20- and 28-pin Devices)
Symbol
Reset
Mnemonic Direction Direction
Active
Low
or
Active
High
Tristate
Output
Internal Schmitt-
Pull-up or Trigger Open Drain 5 V
Pull-down Input Output Tolerance
AV_DD
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
AVSS
N/A
N/A
N/A
N/A
N/A
N/A
N/A
NA
DBG
I/O
I
N/A
Yes
Yes
Yes
Yes
No
PA[7:0]
I/O
I
N/A
Yes Programma- Yes
Yes,
PA[7:2]
ble
Programma- unless pul-
Pull-up
ble
lups
enabled
PB[7:0]
I/O
I
N/A
Yes Programma- Yes
Yes,
PB[7:6]
ble
Programma- unless pul-
Pull-up
ble
lups
enabled
PC[7:0]
I/O
I
N/A
Yes Programma- Yes
Yes,
PC[7:3]
ble
Programma- unless pul-
Pull-up
ble
lups
enabled
RESET/
PD0
I/O
I/O
Low (in Yes Programma- Yes Programma- Yes,
(defaults to Reset (PD0 ble for PD0;
ble for PD0; unless pul-
RESET) mode) only) always on for
always on for lups
RESET
RESET enabled
V_DD
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
Note: PB6 and PB7 are available only in those devices without ADC.
PS022828-0413
PRELIMINARY
Pin Characteristics