74HCT253N ,74HC253;74HCT253; Dual 4-input multiplexer; 3-stateGENERAL DESCRIPTIONThe 74HC/HCT253 are high-speed Si-gate CMOS devices
74HCT253N ,74HC253;74HCT253; Dual 4-input multiplexer; 3-stateINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HCT257 ,3-state
74HCT257D ,Quad 2-input multiplexer; 3-stateINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HCT257N ,Quad 2-input multiplexer; 3-stateGENERAL DESCRIPTIONare forced to a high impedance OFF-state when OE isThe 74HC/HCT257 are high-spee ..
74HCT257PW ,Quad 2-input multiplexer; 3-stateINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74VHC4051WM ,8-Channel Analog MultiplexerGeneral Descriptionselect lines determine which switch in each 4 channel sec-These multiplexers are ..
74VHC4052 ,8-Channel Analog Multiplexer * Dual 4-Channel Analog Multiplexer * Triple 2-Channel Analog MultiplexerGeneral Descriptionselect lines determine which switch in each 4 channel sec-These multiplexers are ..
74VHC4052M ,Dual 4-Channel Analog Multiplexer74VHC4051 • 74VHC4052 • 74VHC4053 8-Channel Analog Multiplexer • Dual 4-Channel Analog Multiplexer ..
74VHC4052M ,Dual 4-Channel Analog MultiplexerGeneral Descriptionselect lines determine which switch in each 4 channel sec-These multiplexers are ..
74VHC4052MTCX ,Dual 4-Channel Analog Multiplexer74VHC4051 • 74VHC4052 • 74VHC4053 8-Channel Analog Multiplexer • Dual 4-Channel Analog Multiplexer ..
74VHC4052MX ,Dual 4-Channel Analog Multiplexer74VHC4051 • 74VHC4052 • 74VHC4053 8-Channel Analog Multiplexer • Dual 4-Channel Analog Multiplexer ..
74HC253DB-74HC253N-74HCT253D-74HCT253N
74HC253;74HCT253; Dual 4-input multiplexer; 3-state
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
FEATURES Non-inverting data path 3-state outputs for bus interface and multiplex expansion Common select inputs Separate output enable inputs Output capability: bus driver ICC category: MSI
GENERAL DESCRIPTIONThe 74HC/HCT253 are high-speed Si-gate CMOS devices
and are pin compatible with low power Schottky TTL
(LSTTL). They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT253 have two identical 4-input multiplexers
with 3-state outputs which select two bits from four sources
selected by common data select inputs (S0,S1).
When the individual output enable (1OE, 2OE) inputs of
the 4-input multiplexers are HIGH, the outputs are forced
to the high impedance OFF-state. The “253” is the logic
implementation of a 2-pole, 4-position switch, where the
position of the switch is determined by the logic levels
applied to S0 and S1.
The logic equations for the outputs are:
1Y=1OE(1l0.S1.S0+1I1.S1.S0+1I2.S1.S0+1I3.S1.S0)
2Y=2OE(2l0.S1.S0+2I1.S1.S0+2I2.S1.S0+2I3.S1.S0)
APPLICATIONS Data selectors Data multiplexers
QUICK REFERENCE DATAGND = 0 V; Tamb = 25 °C; tr = tf = 6 ns
Notes CPD is used to determine the dynamic power dissipation (PDin μW): = CPD× VCC2×fi +∑ (CL× VCC2×fo) where: = input frequency in MHz = output frequency in MHz (CL× VCC2×fo) = sum of outputs= output load capacitance in pF
VCC= supply voltage in V For HC the condition is VI = GND to VCC
For HCT the condition is VI = GND to VCC− 1.5 V
ORDERING INFORMATIONSee “74HC/HCT/HCU/HCMOS Logic Package Information”.
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
PIN DESCRIPTION
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
FUNCTION TABLE
NOTES H = HIGH voltage level= LOW voltage level= don’t care
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
DC CHARACTERISTICS FOR 74HCFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
AC CHARACTERISTICS FOR 74HCGND = 0 V; tr = tf = 6 ns; CL = 50 pF
Philips Semiconductors Product specification
Dual 4-input multiplexer; 3-state 74HC/HCT253
DC CHARACTERISTICS FOR 74HCTFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
Note to HCT typesThe value of additional quiescent supply current (ΔICC) for a unit load of 1 is given in the family specifications.
To determine ΔICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCTGND = 0 V; tr = tf = 6 ns; CL = 50 pF
