Z84C90 Datasheet, PDF (19/31 Pages) Zilog, Inc. – KIO Serial/Parallel Counter Timer

Z84C90
KIO Serial/Parallel Counter Timer
14
DC Characteristics
V_cc = 5.0V +/– 10% unless otherwise specified.
Table 3. DC Characteristics of the Z84C90
Symbol Item
Min
Max
Unit Condition
V_ILC
V_IHC
V_IL
V_IH
V_OL
V_OH1
V_OH2
I_LI
I_OL
I_L(SY)
Clock Input Low Voltage –0.3
+0.45 V
Clock Input High Voltage V_CC–0.6 V_cc+0.3
Input Low Voltage
–0.3
+0.8
V
Input High Voltage
2.2
V_cc
Output Low Voltage
+0.4
Output High Voltage 1 2.4
Output High Voltage 2
Input Leakage Current
V_CC–0.8
±10.0
3-State Leakage Current
±10.0
SYNC Pin Leakage
+10
–40
Current
V
V
I_OL = 2.0mA
V
I_OH = 1.6mA
V
I_OH = 250mA
mA V_in = 0.4~V_cc
mA V_in = 0.4~V_cc
mA V_in = 0.4~V_cc
I_OHD
Darlington Drive Current –1.5
(Port B and ZC/T00~3)
mA V_OH = 1.5V
R_EXT = 390 Ohms
I_CC
Power Supply Current*
8 MHz
10MHz
12.5MHz
15
mA V_CC = 5 V
15
mA V_IH = V_cc–.2V
15
V_IL = .2V
*Measurement made with output floating over specified temperature and voltage ranges.
Table 4. Capacitance
Symbol
Parameter
C_CLOCK
CI_N
C_OUT
Clock Capacitance
Input Capacitance
Output Capacitance
T_A = 25°C, f = 1MHz
Minimum Maximum Unit
10
cF
10
cF
15
cF
PS011802-0902