MC54/74F153 DUAL 4-INPUT MULTIPLEXER The MC54/74F153 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 (non-inverted) form. In addition to multiplexer operation, the F153 can generate any two functions of three variables. DUAL 4-INPUT MULTIPLEXER CONNECTION DIAGRAM DIP (TOP VIEW) FAST SHOTTKY TTL VCC Eb S0 I3b I2b I1b I0b Zb 16 15 14 13 12 11 10 9 J SUFFIX CERAMIC CASE 620-09 16 1 1 2 3 4 5 6 7 8 Ea S1 I3a I2a I1a I0a Za GND LOGIC DIAGRAM Ea I0a 1 6 I1a 5 I2a 4 I3a 3 S1 2 S0 14 I0b 10 I1b 11 12 N SUFFIX PLASTIC CASE 648-08 I3b Eb I2b 13 16 15 1 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION MC54FXXXJ MC74FXXXN MC74FXXXD 7 Za VCC = PIN 16 GND = PIN 8 = PIN NUMBERS Ceramic Plastic SOIC 9 Zb GUARANTEED OPERATING RANGES Symbol Parameter VCC Supply Voltage TA Operating Ambient Temperature Range Min Typ Max Unit 54, 74 4.5 5.0 5.5 V 54 –55 25 125 °C 74 0 25 70 IOH Output Current — High 54, 74 –1.0 mA IOL Output Current — Low 54, 74 20 mA FAST AND LS TTL DATA 4-64 MC54/74F153 FUNCTIONAL DESCRIPTION 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) The F153 can be used to move data from a group of registers to a common output bus. The particular register from which the data came would be determined by the state of the Select Inputs. A less obvious application is as a function generator. The F153 can generate two functions of three variables. This is useful for implementing highly irregular random logic. The MC54/74F153 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 (S0, S1). The two 4-input multiplexer circuits have individual active LOW Enables (Ea, E b) 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 F153 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: FUNCTION TABLE Select Inputs S0 X L L H H L L H H S1 X L L L L H H H H Inputs (a or b) E H L L L L L L L L I0 X L H X X X X X X I1 X X X L H X X X X I2 X X X X X L H X X Output I3 X X X X X X X L H Z L L H L H L H L H H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK Input Clamp Diode Voltage VOH Output HIGH Voltage Min Typ Max 2.0 Unit Test Conditions V Guaranteed Input HIGH Voltage 0.8 V Guaranteed Input LOW Voltage –1.2 V IIN = –18 mA, VCC = MIN 54, 74 2.5 V IOL = –1.0 mA VCC = 4.50V 74 2.7 V IOL = –1.0 mA VCC = 4.75 V VCC = MIN VOL Output LOW Voltage 0.5 V IOL = 20 mA IIH Input HIGH Current 20 µA VIN = 2.7 V, VCC = MAX 0.1 mA VIN = 7.0 V, VCC = MAX IIL Input LOW Current IOS Output Short Circuit Current (Note 2) ICC Power Supply Current –60 –0.6 mA VIN = 0.5 V, VCC = MAX –150 mA VOUT = 0 V, VCC = MAX 20 mA VIN = GND, VCC = MAX NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type. 2. Not more than one output should be shorted at a time, nor for more than 1 second. FAST AND LS TTL DATA 4-65 MC54/74F153 AC CHARACTERISTICS Symbol Parameter 54/74F 54F 74F TA = +25°C VCC = +5.0 V CL = 50 pF TA = -55°C to +125°C VCC = 5.0 V ±10% CL = 50 pF TA = 0°C to 70°C VCC = 5.0 V ±10% CL = 50 pF Min Max Min Max Min Max Unit ns tPLH Propagation Delay 4.5 10.5 4.5 14 4.5 12 tPHL Sn to Zn 3.5 9.0 3.5 11 3.5 10.5 tPLH Propagation Delay 4.5 9.0 4.5 11.5 4.5 10.5 tPHL En to Zn 3.0 7.0 2.5 9.0 2.5 8.0 tPLH Propagation Delay 3.0 7.0 2.5 9.0 3.0 8.0 tPHL In to Zn 3.0 6.5 2.5 8.0 2.5 7.5 FAST AND LS TTL DATA 4-66 ns ns