MC54/74F537 1-OF-10 DECODER WITH 3-STATE OUTPUTS The MC54 / 74F537 is a one-of-ten decoder/demultiplexer with four active HIGH BCD inputs and ten mutually exclusive outputs. A polarity control input determines whether the outputs are active LOW or active HIGH. The MC54 / 74F537 has 3-state outputs, and a HIGH signal on the Output Enable (OE) input forces all outputs to the high impedance state. Two input enables, active HIGH E2 and active LOW E1, are available for demultiplexing data to the selected output in either non-inverted or inverted form. Input codes greater than BCD nine cause all outputs to go to the inactive state (i.e., same polarity as the P input). • • • • • Demultiplexing Capability 3-State Outputs Multiple Input Enable for Expansion Polarity Control Input ESD Protection > 4000 Volts 1-OF-10 DECODER WITH 3-STATE OUTPUTS FAST SCHOTTKY TTL J SUFFIX CERAMIC CASE 732-03 20 1 CONNECTION DIAGRAM DIP (TOP VIEW) VCC O3 20 19 O4 A3 A2 E1 E2 O9 O8 O7 18 17 16 15 14 13 12 11 N SUFFIX PLASTIC CASE 738-03 20 1 DW SUFFIX SOIC CASE 751D-03 20 1 1 2 3 4 5 6 7 8 9 O2 O1 O0 P OE A0 A1 O5 O6 GND 10 ORDERING INFORMATION LOGIC DIAGRAM MC54FXXXJ Ceramic MC74FXXXN Plastic MC74FXXXDW SOIC A3 A2 A1 LOGIC SYMBOL A0 E1 4 E2 15 14 5 P 6 7 16 17 P A0 A1 A2 A3 E1 E2 OE O0 O1 O2 O3 O4 O5 O6 O7 O8 O9 3 2 1 19 18 8 9 11 12 13 VCC = PIN 20 GND = PIN 10 OE O0 O1 O2 O3 O4 O5 O6 O7 O8 O9 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. FAST AND LS TTL DATA 4-203 MC54/74F537 GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit 54, 74 4.5 5.0 5.5 V 54 – 55 25 125 74 0 25 70 VCC Supply Voltage TA Operating Ambient Temperature Range IOH Output Current — High 54, 74 – 3.0 mA IOL Output Current — Low 54, 74 24 mA °C DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Min Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK Input Clamp Diode Voltage VOH Output HIGH Voltage VOL Output LOW Voltage IOZH Output OFF Current — HIGH IOZL Output OFF Current — LOW IIH Input HIGH Current IIL Input LOW Current IOS Output Short Circuit Current (Note 2) ICCZ Power Supply Current Typ Max Unit 2.0 Test Conditions V Guaranteed Input HIGH Voltage 0.8 V Guaranteed Input LOW Voltage – 1.2 V IIN = – 18 mA VCC = MIN 54, 74 2.4 V IOH = – 3.0 mA VCC = 4.5 V 74 2.7 V IOH = – 3.0 mA VCC = 4.75 V 0.5 V IOL = 24 mA VCC = MIN 50 µA VOUT = 2.7 V VCC = MAX – 50 µA VOUT = 0.5 V VCC = MAX 20 µA VCC = MAX, VIN = 2.7 V 0.1 mA VCC = MAX, VIN = 7.0 V – 60 44 – 0.6 mA VCC = MAX, VIN = 0.5 V –150 mA VCC = MAX, VOUT = 0 V 66 mA VCC = MAX: A0 – A3, E1 = GND OE, E2, P = HIGH AC CHARACTERISTICS Symbol Parameter Min 54 / 74F 54F 74F TA = + 25°C VCC = + 5.0 V CL = 50 pF TA = –55 to +125°C VCC = 5.0 V ± 10% CL = 50 pF TA = 0 to 70°C VCC = 5.0 V ± 10% CL = 50 pF Typ Max Min Max Min Max tPLH tPHL Propagation Delay An to On 4.0 2.5 14 11 3.5 2.0 19 15 3.5 2.0 16 12 tPLH tPHL Propagation Delay E1 to On 4.0 3.0 11 11 4.0 3.0 14 14 4.0 3.0 12 12 tPLH tPHL Propagation Delay E2 to On 6.0 4.0 11.5 11.5 5.0 4.0 15 14.5 5.0 4.0 13 12.5 tPLH tPHL Propagation Delay P to On 5.0 3.5 16 11.5 5.0 3.5 21 13 4.5 3.5 17 12 tPZH tPZL Output Enable Time OE to On 2.5 4.0 7.0 8.0 2.5 4.0 11 10 2.5 4.0 8.0 9.0 tPHZ tPLZ Output Disable Time OE to On 1.5 1.5 6.0 6.5 1.0 1.0 8 8 1.0 1.0 7.0 7.0 Unit ns ns ns FAST AND LS TTL DATA 4-204 MC54/74F537 TRUTH TABLE INPUTS OUTPUTS FUNCTION OE E1 E2 A3 A2 A1 A0 00 01 02 O3 04 05 06 07 08 09 HIGH Impedance H X X X X X X Z Z Z Z Z Z Z Z Z Z Disable L L H X X L X X X X X X X X L L L L L L L L H H H H L L L L L L L L L L H H L H L H H L L L L H L L L L H L L L L H L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L H H H H L L L L H H H H L L H H L H L H L L L L L L L L L L L L L L L L H L L L L H L L L L H L L L L H L L L L L L L L L L L L L L L L H H H H H H H H L L X H L L H X L H X X L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L H L L L L H L L L L L L L L L L H H H H L L L L L L L L L L H H L H L H L H H H H L H H H H L H H H H L H H H H H H H H H H H H H H H H H H H H H H H H L L L L L L L L H H H H L L L L H H H H L L H H L H L H H H H H H H H H H H H H H H H H L H H H H L H H H H L H H H H L H H H H H H H H L L L L L L L L H H H H H H H H L L X H L L H X L H X X H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H L H H H H L H H Active HIGH Output (P = L) Active LOW Output (P = H) Outputs Equal P Input H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Z = High Impedance FAST AND LS TTL DATA 4-205