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Details, datasheet, quote on part number:SN54LS125J
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Datasheet text preview:
QUAD 3-STATE BUFFERS
VCC 14 E 13 D 12 O 11 E 10 D 9 O 8
SN54/74LS125A SN54/74LS126A
QUAD 3-STATE BUFFERS
LOW POWER SCHOTTKY
1 E
2 D
3 O
4 E
5 D
6 O
7 GND
LS125A
VCC 14 E 13 D 12 O 11 E 10 D 9 O 8
14 1
J SUFFIX CERAMIC CASE 632-08
14 1
N SUFFIX PLASTIC CASE 646-06
1 E
2 D
3 O
4 E
5 D
6 O
7 GND
14 1
LS126A
D SUFFIX SOIC CASE 751A-02
TRUTH TABLES LS125A
INPUTS E L L H D L H X OUTPUT L H (Z) INPUTS E H H L D L H X OUTPUT L H (Z)
LS126A ORDERING INFORMATION
SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC
L = LOW Voltage Level H = HIGH Voltage Level X = Don't Care (Z) = High Impedance (off)
GUARANTEED OPERATING RANGES
Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current -- High Output Current -- Low Parameter 54 74 54 74 54 74 54 74 Min 4.5 4.75 55 0 Typ 5.0 5.0 25 25 Max 5.5 5.25 125 70 1.0 2.6 12 24 Unit V °C mA mA
FAST AND LS TTL DATA 5-207
SN54 / 74LS125A · SN54/74LS126A
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage 54 Input LOW Voltage 74 Input Clamp Diode Voltage 54 Output HIGH Voltage 74 54, 74 VOL IOZH IOZL IIH IIL IOS ICC Output LOW Voltage 74 Output Off Current HIGH Output Off Current LOW Input HIGH Current 0.1 Input LOW Current Short Circuit Current (Note 1) LS125A Power Supply Current LS126A 22 40 0.4 225 20 mA VCC = MAX 0.35 0.5 20 20 20 V µA µA µA mA mA mA 2.4 0.25 0.4 V V 2.4 0.65 0.8 1.5 V V Min 2.0 0.7 V Typ Max Unit V Test Conditions Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs VCC = MIN, IIN = 18 mA VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table IOL = 12 mA IOL = 24 mA VCC = VCC MIN, VIN = VIL or VIH per Truth Table
VCC = MAX, VOUT = 2.4 V VCC = MAX, VOUT = 0.4 V VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.4 V VCC = MAX VIN = 0 V, VE = 4.5 V VIN = 0 V, VE = 0 V
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (TA = 25°C)
Limits Symbol tPLH tPLH tPHL tPHL tPZH Output Enable Time to HIGH Level Output Enable Time to LOW Level Output Disable Time from HIGH Level Output Disable Time from LOW Level Propagation Delay, Data to Output Parameter LS125A LS126A LS125A LS126A LS125A LS126A LS125A LS126A LS125A LS126A LS125A LS126A Min Typ 9.0 9.0 7.0 8.0 12 16 15 21 Max 15 15 ns 18 18 20 ns 25 25 ns 35 20 ns 25 20 ns 25 FIgures 3, 5 Figures 4, 5 VCC = 5.0 V CL = 5.0 pF RL = 667 Figures 3, 5 Figures 4, 5 VCC = 5.0 V CL = 45 pF RL = 667 Figure 2 Unit Test Conditions
tPZL
tPHZ
tPLZ
FAST AND LS TTL DATA 5-208
SN54 / 74LS125A · SN54/74LS126A
V IN 1.3 V 1.3 V V IN
1.3 V
1.3 V
t PLH
t PHL
t PHL
t PLH
1.3 V V OUT
V OUT 1.3 V
1.3 V
1.3 V
Figure 1
Figure 2
V E
V E
1.3 V V E
1.3 V V E
1.3 V
1.3 V
t PZL
t PLZ
t PZH
t PHZ >V
V OUT
1.3 V
1.3 V
V OL V OUT
OH
1.3 V
1.3 V
0.5 V
0.5 V
Figure 3
Figure 4
V CC
R L
SW1
TO OUTPUT UNDER TEST
5 k
C L
SW2
Figure 5 SWITCH POSITIONS
SYMBOL tPZH tPZL tPLZ tPHZ SW1 Open Closed Closed Closed SW2 Closed Open Closed Closed
FAST AND LS TTL DATA 5-209
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