5962-8858901DA Datasheet, PDF (4/18 Pages) Texas Instruments – DUAL 4-INPUT POSITIVE-NAND GATES

SN54ALS20A, SN54AS20, SN74ALS20A, SN74AS20
DUAL 4ĆINPUT POSITIVEĆNAND GATES
SDAS192B − APRIL 1982 − REVISED DECEMBER 1994
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX†
SN54AS20 SN74AS20
MIN MAX MIN MAX
tPLH
tPHL
A, B, C, or D
1 5.5
1
5
Y
1
5
1 4.5
† _{For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.}
UNIT
ns
4
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