SN54AHCT157_07 Datasheet, PDF (4/17 Pages) Texas Instruments – QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS

SN54AHCT157, SN74AHCT157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
SCLS347K – MAY 1996 – REVISED JULY 2003
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54AHCT157 SN74AHCT157
MIN TYP MAX MIN MAX MIN MAX
VOH
VOL
IOH = –50 mA
IOH = –8 mA
IOL = 50 mA
IOL = 8 mA
4.5 V
4.5 V
4.4 4.5
3.94
0.1
0.36
4.4
3.8
0.1
0.44
4.4
3.8
0.1
0.44
II
VI = 5.5 V or GND
0 V to 5.5 V
±0.1
±1*
±1
ICC
VI = VCC or GND, IO = 0
5.5 V
2
20
20
∆ICC^†
One input at 3.4 V,
Other inputs at VCC or GND
5.5 V
1.35
1.5
1.5
Ci
VI = VCC or GND
5V
2
10
10
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
† _{This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC.}
UNIT
V
V
mA
mA
mA
pF
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
LOAD
(OUTPUT) CAPACITANCE
TA = 25°C
SN54AHCT157 SN74AHCT157
MIN TYP MAX MIN MAX MIN MAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
A or B
A/B
G
Y
CL = 15 pF
Y
CL = 15 pF
Y
CL = 15 pF
4.1**
4.1**
5.3**
5.3**
5.6**
5.6**
6.4**
6.4**
8.1**
8.1**
8.6**
8.6**
1** 7.5**
1** 7.5**
1** 9.5**
1** 9.5**
1** 10**
1** 10**
1
7.5
1
7.5
1
9.5
1
9.5
1
10
1
10
tPLH
tPHL
A or B
Y
CL = 50 pF
5.6 8.7
5.6 8.7
tPLH
A/B
tPLH
Y
CL = 50 pF
6.8 10.4
6.8 10.4
tPLH
G
tPHL
Y
CL = 50 pF
7.1
11
7.1
11
** On products compliant to MIL-PRF-38535, this parameter is not production tested.
1 10.8
1 10.8
1 13.2
1 13.2
1 13.5
1 13.5
1
9.8
1
9.8
1
12
1
12
1
12
1
12
UNIT
ns
ns
ns
ns
ns
ns
noise characteristics V_CC = 5 V, C_L = 50 pF, T_A = 25°C (see Note 4)
PARAMETER
VOL(P) Quiet output, maximum dynamic VOL
VOL(V) Quiet output, minimum dynamic VOL
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.
SN74AHCT157
MIN TYP MAX
0.4 0.8
–0.4 –0.8
4.8
2
0.8
UNIT
V
V
V
V
V
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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