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74VHCT373AM

OCTAL D-TYPE LATCH WITH 3 STATE OUTPUT NON INVERTING

STMicroelectronics 

74VHCT373A

CAPACITIVE CHARACTERISTICS

Symb ol

Parameter

Test Conditions

Value

Un it

TA = 25 oC

-40 to 85 oC

Min. Typ . Max. Min . Max.

CIN Input Capacitance

4

10

10

pF

COUT Output Capacitance

9

pF

CPD Power Dissipation

Capacitance (note 1)

14

pF

1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto

Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/8 (per Latch)

DYNAMIC SWITCHING CHARACTERISTICS

Symb ol

Parameter

Test Conditions

V CC

( V)

Value

TA = 25 oC

Min. Typ. Max.

-40 to 85 oC

Min . Max.

Un it

VOLP Dynamic Low Voltage

5.0

VOLV Quiet Output (note 1, 2)

0.6 0.9

-0.9 -0.6

VIHD Dynamic High Voltage

5.0

CL = 50 pF

2.0

V

Input (note 1, 3)

VILD Dynamic Low Voltage

5.0

0.8

Input (note 1, 3)

1) Worst case package.

2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.0V, (n -1) outputs switching and one output at GND.

3) Max number of data inputs (n) switching. (n-1) switching 0V to3.0V. Inputs under test switching: 3.0V to threshold (VILD), 0V to threshold (VIHD), f=1MHz.

TEST CIRCUIT

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

CL = 15/50 pF or equivalent (includes jig and probe capacitance)

RL = R1 = 1KΩ orequivalent

RT = ZOUT of pulse generator (typically 50Ω)

SW IT CH

Open

VCC

GND

5/10

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