SN74AHCT240PWE4 Datasheet, PDF (4/21 Pages) Texas Instruments – OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

SN54AHCT240, SN74AHCT240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS252K – OCTOBER 1995 – REVISED JULY 2003
switching characteristics over recommended operating free-air temperature range,
V_CC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
TA = 25°C
SN54AHCT240 SN74AHCT240
MIN TYP MAX MIN MAX MIN MAX
tPLH
A
tPHL
tPZH
OE
tPZL
tPHZ
OE
tPLZ
Y
CL = 15 pF
Y
CL = 15 pF
Y
CL = 15 pF
5.4* 7.4*
5.4* 7.4*
7.7* 10.4*
7.7* 10.4*
8.3* 10.4*
8.3* 10.4*
1* 8.5*
1* 8.5*
1*
12*
1*
12*
1*
12*
1*
12*
1
8.5
1
8.5
1
12
1
12
1
12
1
12
tPLH
A
tPHL
tPZH
OE
tPZL
tPHZ
tPLZ
OE
tsk(o)
Y
CL = 50 pF
Y
CL = 50 pF
Y
CL = 50 pF
CL = 50 pF
5.9 8.4
5.9 8.4
8.2 11.4
8.2 11.4
8.8 11.4
8.8 11.4
1**
1
9.5
1
9.5
1
13
1
13
1
13
1
13
1
9.5
1
9.5
1
13
1
13
1
13
1
13
1
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
** On products compliant to MIL-PRF-38535, this parameter does not apply.
UNIT
ns
ns
ns
ns
ns
ns
ns
noise characteristics, V_CC = 5 V, C_L = 50 pF, T_A = 25°C (see Note 4)
PARAMETER
VOH(V) Quiet output, minimum dynamic VOH
VIH(D) High-level dynamic input voltage
VIL(D) Low-level dynamic input voltage
NOTE 4: Characteristics are for surface-mount packages only.
SN74AHCT240
MIN TYP MAX
4.1
2
0.8
UNIT
V
V
V
operating characteristics, V_CC = 5 V, T_A = 25°C
PARAMETER
Cpd Power dissipation capacitance
TEST CONDITIONS
No load, f = 1 MHz
TYP UNIT
10 pF
4
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