Z80189 Datasheet, PDF (102/107 Pages) Zilog, Inc. – GENERAL-PURPOSE EMBEDDED CONTROLLERS

Zilog
PRELIMINARY
ELECTRICAL CHARACTERISTICS
This section describes pins in terms of classes of inputs and outputs.
Pin Output/Input Classification
Z80189/Z8L189
GENERAL-PURPOSE EMBEDDED CONTROLLERS
Class "0" output:
Class "3" output:
Full time/totem pole
V_OL 0.4V max at I_OL=2.0 mA
V_OH 2.4V min at I_OH=200 µA
Slew rate 0.33 V/ns min at Cload=50 pF
C_OUT=15 pF max (output or I/O)
as "0" except tri-state
Class "S" output:
Open Source capability
Active High, Inactive tri-state
Class "T" output:
Class "I" input:
Class "R" input:
Tri-state
V_OL 0.4V max at I_OL=16 mA
V_OH 2.4V min at I_OH=16 mA
Output impedance 45 ohms max
Slew rate 0.05-0.40 V/ns (Cload not state by IEEE)
C_OUT=15 pF max (output or I/O)
V_IL 0.8V max at V_DD~ = 5V
V 0.6V max at V ~ = 3.3V
IL
DD
V 2.0V min
IH
Ii ± 10 µA max, Vi=0 to 5V (includes leakage if I/O)
C =5 pF max (if input only, see output type if I/O)
IN
V 0.6V max
IL
V V -0.6 min at V ~= 5V
IH DD
DD
V V -0.3 min at V ~= 3.3V
IH DD
DD
Ii± 10 µA max, Vi=0 to 5V
C_IN=5 pF max
Note: All pins except XTAL,EXTAL have "weak latch"
drivers. These drivers force the pin to a known state (logic
high or logic low) and prevent pins from becoming unde-
fined. Unused pins need not be pulled up or pulled down
to prevent ESD or power drain.
102
DS971890301