SN74AS4374B

OCTAL EDGE-TRIGGERED D-TYPE DUAL-RANK FLIP-FLOP

WITH 3-STATE OUTPUTS

SDAS109D – APRIL 1989 – REVISED JANUARY 1995

3

POST OFFICE BOX 655303

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

– 1.5

V

VOH

VCC =4 5V

IOH = – 3 mA

2.4

3.2

V

VOH

VCC = 4.5 V

IOH = – 15 mA

2

V

VOL

VCC =4 5V

IOL = 32 mA

0.25

0.4

V

VOL

VCC = 4.5 V

IOL = 48 mA

0.35

0.5

V

IOZH

VCC = 5.5 V,

VO = 2.7 V

20

µA

IOZL

VCC = 5.5 V,

VO = 0.4 V

–20

µA

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

– 0.2

mA

IO‡

VCC = 5.5 V,

VO = 2.25 V

–30

–112

mA

ICC

VCC = 5.5 V,

OE high

100

150

mA

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

‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.

timing requirements over recommended operating free-air temperature range (unless otherwise

noted)

MIN

MAX

UNIT

fclock

Clock frequency

0

125

MHz

tw

Pulse duration, CLK high or low

4

ns

tsu

Setup time, data before CLK

↑

4

ns

th

Hold time, data after CLK

↑

1

ns

switching characteristics (see Figure 1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

R1 = 500

R2 = 500

TA = MIN to MAX§

UNIT

MIN

MAX

fmax

125

MHz

tPLH

CLK

Q

2

8

ns

tPHL

CLK

Q

2

8

ns

tPZH

OE

Q

1.5

6

ns

tPZL

OE

Q

2.5

8

ns

tPHZ

OE

Q

2

6.5

ns

tPLZ

OE

Q

2.5

7

ns

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