SN54AS194, SN74AS194

4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTERS

SDAS212A – DECEMBER 1983 – REVISED DECEMBER 1994

6

POST OFFICE BOX 655303

switching characteristics (see Figure 2)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

TA = MIN to MAX†

UNIT

(INPUT)

(OUTPUT)

SN54AS194

SN74AS194

MIN

MAX

MIN

MAX

fmax*

75

80

MHz

tPLH

CLK

Any Q

2.5

8

3

7

ns

tPHL

CLK

Any Q

2.5

8

3

7

ns

tPHL

CLR

Any Q

3.5

13

4

12

ns

* On products compliant to MIL-STD-883, Class B, these parameters are based on characterization data, but are not production tested.

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