Datasheet

SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144C − APRIL 1985 − REVISED MAY 2010
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics, V
CC
= 5 V, T
A
= 25°C (see Figure 2)
PARAMETER
TEST CONDITIONS
’S240 ’S241, ’S244
UNIT
PARAMETER TEST CONDITIONS
MIN TYP MAX MIN TYP MAX
UNIT
t
PLH
R 90 Ω
C 50 F
4.5 7 6 9
ns
t
PHL
R
L
= 90 Ω,
C
L
= 50 pF
4.5 7 6 9
ns
t
PZL
R 90 Ω
C 50 F
10 15 10 15
ns
t
PZH
R
L
= 90 Ω,
C
L
= 50 pF
6.5 10 8 12
ns
t
PLZ
R 90 Ω
C 5pF
10 15 10 15
ns
t
PHZ
R
L
= 90 Ω, C
L
= 5 pF
6 9 6 9
ns