SN74F378

HEX DTYPE FLIPFLOP

WITH CLOCK ENABLE

SDFS030B − D2932, MARCH 1987 − REVISED OCTOBER 1993

2−3

POST OFFICE BOX 655303

POST OFFICE BOX 1443

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = − 18 mA

− 1.2

V

VOH

VCC = 4.5 V,

IOH = − 1 mA

2.5

3.4

V

VOH

VCC = 4.75 V,

IOH = − 1 mA

2.7

V

VOL

VCC = 4.5 V,

IOL = 20 mA

0.3

0.5

V

II

VCC = 5.5 V,

VI = 7 V

0.1

mA

IIH

VCC = 5.5 V,

VI = 2.7 V

20

µA

IIL

VCC = 5.5 V,

VI = 0.5 V

− 0.6

mA

IOS‡

VCC = 5.5 V,

VO = 0

−60

− 150

mA

ICC

VCC = 5.5 V,

See Note 2

30

45

mA

† All typical values are at VCC = 5 V, TA = 25°C.

‡ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.

NOTE 2: ICC is measured with all outputs open, all data inputs and the enable input grounded, and the clock input at 4.5 V after being momentarily

grounded.

timing requirements

VCC = 5 V,

TA = 25°C

VCC = 4.5 V to 5.5 V,

TA = MIN to MAX§

UNIT

MIN

MAX

MIN

MAX

UNIT

fclock

Clock frequency

0

110

0

110

MHz

tw

Pulse duration

CLK high

4

4

ns

tw

Pulse duration

CLK low

6

6

ns

Data high or low

5

5

tsu

Setup time before CLK

↑

CLKEN high

3.5

3.5

ns

tsu

Setup time before CLK

↑

CLKEN low

5

5

ns

th

Hold time after CLK

↑

Data high or low

1

1

ns

th

Hold time after CLK

↑

CLKEN high or low

0

0

ns

switching characteristics (see Note 3)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

CL = 50 pF,

RL = 500 Ω,

TA = 25°C

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

RL = 500 Ω,

TA = MIN to MAX§

UNIT

MIN

TYP

MAX

MIN

MAX

fmax

110

125

110

MHz

tPLH

CLK

Any Q

3.3

4.5

6.1

3.1

6.7

ns

tPHL

CLK

Any Q

3

4.2

6

2.9

6.1

ns

§ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

NOTE 3: Load circuits and waveforms are shown in Section 1.