NTE8542 datasheet(2/4 Pages) NTE

Part #	NTE8542

Description	Integrated Circuit Tri−State Quad I/O Register

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Manufacturer	NTE [NTE Electronics]

Direct Link	http://www.nteinc.com

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Electrical Characteristics: (Notes 2 and 3)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Logical “1” Input Voltage

VIH

VCC = Min

2.0

−

V

Logical “1” Input Current

IIH

VCC = Max, VIN = 2.4V

VCC = Max, VIN = 5.5V

−

40

1.0

μA

Logical “0” Input Voltage

VIL

VCC = Min

−

0.8

V

Logical “0” Input Current

IIL

VCC = Max, VIN = 0.4V

−

−1.0 −1.6 mA

Input Clamp Voltage

VCD

VCC = Min, IIN = −12mA

−

−1.5

V

Logical “1” Output Voltage

VOH

VCC = Min, IOUT = −800μ 2.4

−

V

Output Short Circuit Current

IOS

VCC = Max, VOUT = 0V,

Note 4

−25

−

−70 mA

Logical “0” Output Voltage

VOL

VCC = Min, IOUT = 16mA

−

0.4

V

Supply Current

ICC

VCC = Max

−

120

mA

TRI−STATE I/O Current with

Inputs and Outputs Disabled

VCC = Max, VIN = 2.4V

VCC = Max, VIN = 0.4V

−

40

−40

μA

Propagation Delay to a Logical “0”

from Clock to Output

tpd0

RL = 400Ω, CL = 50pF

TA = 25°C

−

23

35

ns

Propagation Delay to a Logical “0”

from Clear to Output

tpd0

RL = 400Ω, CL = 50pF

TA = 25°C

−

24

36

ns

Propagation Delay to a Logical “1”

from Clock to Output

tpd1

RL = 400Ω, CL = 50pF

TA = 25°C

−

25

38

ns

Delay from Disable to High

Impedance State

(from Logical “1” Level)

t1H

RL = 400Ω, CL = 5.0pF

TA = 25°C

−

6.0

15

ns

Delay from Disable to High

Impedance State

(from Logical “0” Level)

t0H

RL = 400Ω, CL = 5.0pF

TA = 25°C

−

15

25

ns

Delay from Disable to Logical

“1” Level

(from High Impedance State)

tH1

RL = 400Ω, CL = 50pF

TA = 25°C

−

20

30

ns

Delay from Disable to Logical

“0” Level

(from High Impedance State)

tH0

RL = 400Ω, CL = 50pF

TA = 25°C

−

17

25

ns

Maximum Clock Frequency

fMAX

RL = 400Ω, CL = 50pF

TA = 25°C

30

40

−

MHz

Enable to Clock Set−Up Time

tSO

RL = 400Ω, CL = 50pF

TA = 25°C

20

13

−

ns

Enable to Clock Set−Up Time

tSI

RL = 400Ω, CL = 50pF

TA = 25°C

20

12

−

ns

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