M74HC173B1R View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M74HC173B1R

QUAD D-TYPE REGISTER (3-STATE)

STMicroelectronics 

M54/M74HC173

AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)

Symbol

Parameter

Test Conditions

VCC CL

(V) (pF)

TA = 25 oC

54HC and 74HC

Value

-40 to 85 oC -55 to 125 oC Unit

74HC

54HC

Min. Typ. Max. Min. Max. Min. Max.

tREM Minimum

Removal Time

2.0

4.5 50

5

5

5

5

5

5

ns

6.0

5

5

5

CIN Input Capacitance

5

10

10

10 pF

CPD (*) Power Dissipation

50

Capacitance

pF

(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.

(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC/4 (per circuit)

SWITCHING CHARACTERISTICS TEST WAVEFORM

EACH FLIP-FLOP SHALL BE SET HIGH WHEN

SWITCH IS CONNECTED TO GND LINE AND

IT SHALL BE SET LOW WHEN SWITCH IS

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