Z84C9012VSC datasheet(19/31 Pages) ZILOG

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Z84C90

KIO Serial/Parallel Counter Timer

PS011802-0902

DC Characteristics

Vcc = 5.0V +/– 10% unless otherwise specified.

Table 3. DC Characteristics of the Z84C90

Symbol

Item

Min

Max

Unit

Condition

VILC

Clock Input Low Voltage

–0.3

+0.45

VIHC

Clock Input High Voltage

VCC–0.6 Vcc+0.3

VIL

Input Low Voltage

–0.3

+0.8

VIH

Input High Voltage

2.2

Vcc

VOL

Output Low Voltage

+0.4

IOL = 2.0mA

VOH1

Output High Voltage 1

2.4

IOH = 1.6mA

VOH2

Output High Voltage 2

VCC–0.8

IOH = 250mA

ILI

Input Leakage Current

±10.0

Vin = 0.4~Vcc

IOL

3-State Leakage Current

±10.0

Vin = 0.4~Vcc

IL(SY)

SYNC Pin Leakage

Current

+10

–40

Vin = 0.4~Vcc

IOHD

Darlington Drive Current

(Port B and ZC/T00~3)

–1.5

VOH = 1.5V

REXT = 390 Ohms

ICC

Power Supply Current*

8 MHz

10MHz

12.5MHz

VCC = 5 V

VIH = Vcc–.2V

VIL =.2V

*Measurement made with output floating over specified temperature and voltage ranges.

Table 4. Capacitance

Symbol

Parameter

Minimum Maximum Unit

CCLOCK

CIN

COUT

Clock Capacitance

Input Capacitance

Output Capacitance

TA = 25°C, f = 1MHz

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