NTE74HC138

NTE74HC138 Integrated Circuit TTL − High Speed CMOS, 1−of−8 Decoder/Demultiplexer Description: The NTE74HC138 is a 1−of−8 decoder/demultiplexer in a 16−Lead plastic DIP type package that decodes a three−bit Address to one−of−eight active−low outputs. This device features three Chip Select inputs, two active−low and one active−high to facilitate the demultiplexing, cascading, and chip−selecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one of the Chip Selects is used as a data input while the other Chip Selects are held in their active states. The NTE74HC138 is identical in pinout to the ’LS138. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. Features: D Output Drive Capability: 10 LSTTL Loads D Outputs Directly Interface to CMOS, NMOS, and TTL D Operating Voltage range: 2V to 6V D Low Input Current: 1.0μA D High Noise Immunity Characteristics of CMOS Devices Absolute Maximum Ratings: (Note 1, Note 2) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 to +7.0V DC Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 to VCC +0.5V DC Output Voltage, VOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 to VCC + 0.5V DC Input Current (Per Pin), IIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA DC Output Current (Per Pin), IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25mA DC VCC or GND Current (Per Pin), ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50mA Power Dissipation (Note 3), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to +150°C Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C Note 1. Stresses exceeding the Absolute Maximum Ratings may damage the device. The device may not function or be operable above the Recommended Operating Conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the Recommended Operating Conditions may effect device reliability. The Absolute Maximum Ratings are stress ratings only. Note 2. Unless otherwise specified, all voltages are referenced to GND. Note 3. Power Dissipation temperature derating: 12mW/°C from +65°C to +85°C. Recommended Operating Conditions: Parameter Symbol Min Typ Max Unit VCC 2.0 − 6.0 V VIN, VOUT 0 − VCC V Operating Temperature Range TA −55 − +125 °C Input Rise or Fall Times VCC = 2.0V tr, tf − − 1000 ns VCC = 4.5V − − 500 ns VCC = 6.0V − − 400 ns Supply Voltage DC Input or Output Voltage DC Electrical Characteristics: (Voltages Referenced to GND unless otherwise specified) Parameter Minimum High Level Input Voltage Maximum Low Level Input Voltage Minimum High Level Output Voltage Symbol VIH VIH VOH Maximum Low Level Output Voltage VOL −55 to +25C  85C  125C Unit 2.0 1.50 1.50 1.50 V 3.0 2.10 2.10 2.10 V 4.5 3.15 3.15 3.15 V 6.0 4.20 4.20 4.20 V 2.0 0.50 0.50 0.50 V 3.0 0.90 0.90 0.90 V 4.5 1.35 1.35 1.35 V 6.0 1.80 1.80 1.80 V 2.0 1.9 1.9 1.9 V 4.5 4.4 4.4 4.4 V 6.0 5.9 5.9 5.9 V |IOUT| ≤ 2.4mA 3.0 2.48 2.34 2.20 V IOUT| ≤ 4.0mA 4.5 3.98 3.84 3.70 V IOUT| ≤ 5.2mA 6.0 5.48 5.34 5.20 V 2.0 0.1 0.1 0.1 V 4.5 0.1 0.1 0.1 V 6.0 0.1 0.1 0.1 V |IOUT| ≤ 2.4mA 3.0 0.26 0.33 0.40 V IOUT| ≤ 4.0mA 4.5 0.26 0.33 0.40 V IOUT| ≤ 5.2mA 6.0 0.26 0.33 0.40 V Test Conditions VOUT = 0.1V or VCC −0.1V, |IOUT ≤ 20μA| VOUT = 0.1V or VCC −0.1V, |IOUT| ≤ 20μA VIN = VIH or VIL, |IOUT| ≤ 20μA VIN = VIH or VIL VIN = VIH or VIL, |IOUT| ≤ 20μA VIN = VIH or VIL Guaranteed Limits VCC (V) Maximum Input Leakage Current IIN VIN = VCC or GND 6.0 ±0.1 ±1.0 ±1.0 μA Maximum Quiescent Supply Current ICC VIN = VCC or GND, IOUT = 0μA 6.0 4.0 40 40 μA AC Electrical Characteristics: (tr = tf = 6ns, CL = 50pF unless otherwise specified) Parameter Maximum Propagation Delay, Input A to Output Y Symbol tPLH, tPHL Test Conditions Guaranteed Limits VCC (V) −55 to +25C  85C  125C Unit 2.0 135 170 205 ns 3.0 90 125 165 ns 4.5 27 34 41 ns 6.0 23 29 35 ns AC Electrical Characteristics (Cont’d): (tr = tf = 6ns, CL = 50pF unless otherwise specified) Parameter Maximum Propagation Delay, CS1 to Output Y Maximum Propagation Delay, CS2 or CS3 to Output Y Maximum Output Transition Time, Any Output Maximum Input Capacitance Parameter Power Dissipation Capacitance (Per Package) Symbol Test Conditions tPLH, tPHL tPLH, tPHL tTLH, tTHL Cin Symbol CPD Guaranteed Limits VCC (V) −55 to +25C  85C  125C Unit 2.0 110 140 165 ns 3.0 85 100 125 ns 4.5 22 28 33 ns 6.0 19 24 28 ns 2.0 120 150 180 ns 3.0 90 120 150 ns 4.5 24 30 36 ns 6.0 20 26 31 ns 2.0 75 95 110 ns 3.0 30 40 55 ns 4.5 15 19 22 ns 6.0 13 16 19 ns − 10 10 10 pF Test Conditions Typical @ +25C, VCC = 5V, VEE = 0V Unit 55 pF Note 4 Note 4. CPD determines the no load dynamic power consumption, PD = CPD VCC2 f + ICC VCC Function Table: CS1 X X L H H H H H H H H CS2 X H X L L L L L L L L Inputs CS3 A2 H X X X X X L L L L L L L L L H L H L H L H A1 X X X L L H H L L H H H = HIGH Level (Steady State) L = LOW Level (Steady State) X = Don’t Care A0 X X X L H L H L H L H Y0 H H H L H H H H H H H Y1 H H H H L H H H H H H Y2 H H H H H L H H H H H Outputs Y3 Y4 H H H H H H H H H H H H L H H L H H H H H H Y5 H H H H H H H H L H H Y6 H H H H H H H H H L H Y7 H H H H H H H H H H L Pin Connection Diagram A0 1 16 VCC A1 2 A2 3 15 Y0 14 Y1 CS2 4 13 Y2 CS3 5 12 Y3 CS1 6 11 Y4 Y7 7 10 Y5 GND 8 9 Y6 16 9 1 8 .870 (22.0) Max .260 (6.6) Max .200 (5.08) Max .100 (2.54) .700 (17.78) .099 (2.5) Min