HD74AC153 Dual 4-Input Multiplexer Description The HD74AC153 is a high-speed dual 4-input multiplexer with common select inputs and individual enable inputs for each section. It can select two lines of data from four sources. The two buffered outputs present data in the true (noninverted) form. In addition to multiplexer operation, the HD74AC153 can act as a function generator and generate any two functions of three variables. Feature • Outputs Source/Sink 24 mA Pin Arrangement Ea 1 16 VCC S1 2 15 Eb I3a 3 14 S0 I2a 4 13 I3b I1a 5 12 I2b I0a 6 11 I1b Za 7 10 I0b GND 8 9 Zb (Top view) HD74AC153 Logic Symbol Ea I0a I1a I2a I3a I0b I1b I2b I3b Eb S0 S1 Za Zb Pin Names I0a to I3a I0b to I3b S 0, S 1 Ea Eb Za Zb Side A Data Inputs Side B Data Inputs Common Select Inputs Side A Enable Input Side B Enable Input Side A Output Side B Output Functional Description The HD74AC153 is a dual 4-input multiplexer. It can select two bits of data from up to four sources under the control of the common Select inputs (S 0, S1). The two 4-input multiplexer circuits have individual active-Low Enables (Ea , Eb) which can be used to strobe the outputs independently. When the Enables (Ea , Eb ) are High, the corresponding outputs (Za , Zb ) are forced Low. The HD74AC153 is the logic implementation of a 2-pole, 4-position switch, where the position of the switch is determined by the logic levels supplied to the two Select inputs. The logic equations for the outputs are shown below. Za = Ea •(I0a•S1•S0 + I1a •S1•S0 + I2a •S1•S0 + I3a •S1•S0) Zb = Eb•(I0b•S1•S0 + I1b•S1•S0 + I2b•S1•S0 + I3b•S1•S0) 2 HD74AC153 Truth Table Select Inputs Input (a or b) Output S0 S1 E I0 I1 I2 I3 Z X X H X X X X L L L L L X X X L L L L H X X X H H L L X L X X L H L L X H X X H L H L X X L X L L H L X X H X H H H L X X X L L H H L X X X H H H : L : X : High Voltage Level Low Voltage Level Immaterial 3 HD74AC153 Logic Diagram Ea I0a I1a I2a I3a S1 S0 I0b Za I1b I2b I3b Eb Zb Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. DC Characteristics (unless otherwise specified) Item Symbol Max Unit Condition Maximum quiescent supply current I CC 80 µA VIN = VCC or ground, VCC = 5.5 V, Ta = Worst case Maximum quiescent supply current I CC 8.0 µA VIN = VCC or ground, VCC = 5.5 V, Ta = 25°C 4 HD74AC153 AC Characteristics: HD74AC153 Ta = +25°C CL = 50 pF Ta = –40°C to +85°C CL = 50 pF Item Symbol VCC (V)*1 Min Typ Max Min Max Unit Propagation delay t PLH 3.3 1.0 9.5 15.0 1.0 17.5 ns 5.0 1.0 6.5 11.0 1.0 12.5 3.3 1.0 8.5 14.5 1.0 16.5 5.0 1.0 6.5 11.0 1.0 12.0 3.3 1.0 8.0 13.5 1.0 16.0 5.0 1.0 5.5 9.5 1.0 11.0 3.3 1.0 7.0 11.0 1.0 12.5 5.0 1.0 5.0 8.0 1.0 9.0 3.3 1.0 7.5 12.5 1.0 14.5 5.0 1.0 5.5 9.0 1.0 10.5 3.3 1.0 7.0 11.5 1.0 13.0 5.0 1.0 5.0 8.5 1.0 10.0 Sn to Zn Propagation delay t PHL Sn to Zn Propagation delay t PLH En to Zn Propagation delay t PHL En to Z n Propagation delay t PLH I n to Zn Propagation delay t PHL I n to Zn Note: ns ns ns ns ns 1. Voltage Range 3.3 is 3.3 V ± 0.3 V Voltage Range 5.0 is 5.0 V ± 0.5 V Capacitance Item Symbol Typ Unit Condition Input capacitance CIN 4.5 pF VCC = 5.5 V Power dissipation capacitance CPD 65.0 pF VCC = 5.0 V 5 Unit: mm 19.20 20.00 Max 1 7.40 Max 9 6.30 16 8 1.3 0.48 ± 0.10 2.54 Min 5.06 Max 2.54 ± 0.25 0.51 Min 1.11 Max 7.62 + 0.13 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-16 Conforms Conforms 1.07 g Unit: mm 10.06 10.5 Max 9 1 8 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.80 Max *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 5.5 16 0.20 7.80 +– 0.30 1.15 0° – 8° 0.70 ± 0.20 0.15 0.12 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DA — Conforms 0.24 g Unit: mm 9.9 10.3 Max 9 1 8 0.635 Max *0.42 ± 0.08 0.40 ± 0.06 0.15 *0.22 ± 0.03 0.20 ± 0.03 1.27 0.11 0.14 +– 0.04 1.75 Max 3.95 16 0.10 6.10 +– 0.30 1.08 0° – 8° 0.67 0.60 +– 0.20 0.25 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DN Conforms Conforms 0.15 g Unit: mm 4.40 5.00 5.30 Max 16 9 1 8 0.65 0.13 M 1.10 Max 0.65 Max 0.10 *Dimension including the plating thickness Base material dimension 6.40 ± 0.20 0.07 +0.03 –0.04 0.20 ± 0.06 1.0 *0.17 ± 0.05 0.15 ± 0.04 0.08 *0.22 +– 0.07 0° – 8° 0.50 ± 0.10 Hitachi Code JEDEC EIAJ Weight (reference value) TTP-16DA — — 0.05 g Cautions 1. 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