74LVC157ABQ ,74LVC157A; Quad 2-input multiplexerGeneral descriptionThe 74LVC157A is a quad 2-input multiplexer which select four bits of data from ..
74LVC157ABQ ,74LVC157A; Quad 2-input multiplexerINTEGRATED CIRCUITSDATA SHEET74LVC157AQuad 2-input multiplexerProduct specification 2003 Dec 02Super ..
74LVC157AD ,Quad 2-input multiplexerLogic diagram5. Pinning information5.1 Pinning 74LVC157Aterminal 11 16SVCCindex area1I0 2 15 E1I0 2 ..
74LVC157ADB ,Quad 2-input multiplexerPIN CONFIGURATION PIN DESCRIPTIONPINSYMBOL FUNCTIONS 1 16 VNUMBERCC1I 2 15 E 1 S Common data select ..
74LVC157APW ,Quad 2-input multiplexerPIN CONFIGURATION PIN DESCRIPTIONPINSYMBOL FUNCTIONS 1 16 VNUMBERCC1I 2 15 E 1 S Common data select ..
74LVC161284 ,LOW VOLTAGE HIGH SPEED IEEE1284 TRANSCEIVERABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Supply Voltage-0.5 to +4.6 VCCV Cable Supply V ..
8080A , 8-Bit Microprocessor
8085AH-2 , 8-Bit HMOS MICROPROCESSORS 3MHz, 5 MHz and 6 MHz Selections Avallable
80C186 , CMOS High-Integration 16-Bit Microprocessors
80C186 , CMOS High-Integration 16-Bit Microprocessors
80C187 , 80-BIT MATH COPROCESSOR
80C196KB , COMMERCIAL/EXPRESS CHMOS MICROCONTROLLER
74LVC157ABQ
74LVC157A; Quad 2-input multiplexer
Philips Semiconductors Product specification
Quad 2-input multiplexer 74LVC157A
FEATURES5 V tolerant inputs for interfacing with 5 V logic Wide supply voltage range from 1.2to 3.6V CMOS low power consumption Direct interface with TTL levels Inputs accept voltages up to 5.5V Complies with JEDEC standard no. 8-1A ESD protection:
HBM EIA/JESD22-A114-A exceeds 2000V
MM EIA/JESD22-A115-A exceeds 200V. Specified from −40to +85 °C and −40to +125 °C.
DESCRIPTIONThe 74LVC157A is a high-performance, low-power,
low-voltage, Si-gate CMOS device and superior to most
advanced CMOS compatible TTL families.
Inputs can be driven from either 3.3or5 V devices. This
feature allows the useof these devicesas translatorsina
mixed 3.3 and5 V environment.
The 74LVC157Aisa quad 2-input multiplexer which select
four bits of data from two sources under the control of a
common select input (S). The four outputs present the
selected data in the true (non-inverted) form. The enable
input (E) is active LOW. When pin E is HIGH, all of the
outputs (1Y to 4Y) are forced LOW regardless of all the
other input conditions. Moving the data from two groupsof
registersto four common output busesisa common useof
the 74LVC157A. The state of the common data select
input (S) determines the particular register from which the
data comes. It can also be used as function generator.
The deviceis usefulfor implementing highly irregular logic
by generating any 4 of the 16 different functions of two
variables with one variable common.
The 74LVC157A is the logic implementation of a 4-pole,
2-position switch, where the position of the switch is
determined by the logic levels applied to pinS.
QUICK REFERENCE DATAGND=0 V; Tamb =25 °C; tr =tf≤ 2.5 ns.
Notes CPD is used to determine the dynamic power dissipation (PDin μW). =CPD× VCC2×fi× N+ Σ(CL× VCC2×fo) where:= input frequency in MHz;= output frequency in MHz;= output load capacitance in pF;
VCC= supply voltage in Volts;= total load switching outputs;
Σ(CL× VCC2×fo)= sum of the outputs. The condition is VI= GNDto VCC.
Philips Semiconductors Product specification
Quad 2-input multiplexer 74LVC157A
FUNCTION TABLESee note1.
Note H= HIGH voltage level;= LOW voltage level;= don’t care.
ORDERING INFORMATION
PINNING
Philips Semiconductors Product specification
Quad 2-input multiplexer 74LVC157A
Philips Semiconductors Product specification
Quad 2-input multiplexer 74LVC157A
Philips Semiconductors Product specification
Quad 2-input multiplexer 74LVC157A
RECOMMENDED OPERATING CONDITIONS
LIMITING VALUES accordance with the Absolute Maximum Rating System (IEC 60134); voltages are referencedto GND (ground=0 V).
Notes The input and output voltage ratings may be exceeded if the input and output current ratings are observed. For SO16 packages: above 70 °C the value of PD derates linearly with 8 mW/K.
For (T)SSOP16 packages: above 60 °C the value of PD derates linearly with 5.5 mW/K.
For DHVQFN16 packages: above 60 °C the value of PD derates linearly with 4.5 mW/K.
Philips Semiconductors Product specification
Quad 2-input multiplexer 74LVC157A
CHARACTERISTICSAt recommended operating conditions; voltages are referenced to GND (ground=0 V).
Philips Semiconductors Product specification
Quad 2-input multiplexer 74LVC157A
Note All typical values are measured at Tamb =25 °C.
Philips Semiconductors Product specification
Quad 2-input multiplexer 74LVC157A
CHARACTERISTICSGND=0 V; tr =tf≤ 2.5 ns.
Notes All typical values are measured at Tamb =25 °C. This typical value is measured at VCC= 3.3 V and Tamb =25 °C. Skew between any two outputsof the same package switchingin the same direction. This parameteris guaranteed
by design.
