SN54ALS151, SN74ALS151, SN74AS151 1-OF-8 DATA SELECTORS/MULTIPLEXERS SDAS205A – APRIL 1982 – REVISED DECEMBER 1994 • • • SN54ALS151 . . . J PACKAGE SN74ALS151, SN74AS151 . . . D OR N PACKAGE (TOP VIEW) 8-Line to 1-Line Multiplexers Can Perform as: Boolean Function Generators Parallel-to-Serial Converters Data Source Selectors Input Clamping Diodes Simplify System Design Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs D3 D2 D1 D0 Y W G GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC D4 D5 D6 D7 A B C description SN54ALS151 . . . FK PACKAGE (TOP VIEW) D2 D3 NC VCC D4 These data selectors/multiplexers provide full binary decoding to select one-of-eight data sources. The strobe (G) input must be at a low logic level to enable the inputs. A high level at the strobe terminal forces the W output high and the Y output low. D1 D0 NC Y W 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 D5 D6 NC D7 A G GND NC C B The SN54ALS151 is characterized for operation over the full military temperature range of – 55°C to 125°C. The SN74ALS151 and SN74AS151 are characterized for operation from 0°C to 70°C. 4 NC – No internal connection FUNCTION TABLE INPUTS SELECT OUTPUTS C B A STROBE G Y W X X X H L H L L L L D0 D0 L L H L D1 D1 L H L L D2 D2 L H H L D3 D3 H L L L D4 D4 H L H L D5 D5 H H L L D6 D6 H H H L D7 D7 H = high level, L = low level, X = irrelevant D0, D1, . . . D7 = the level of the respective D input Copyright 1994, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN54ALS151, SN74ALS151, SN74AS151 1-OF-8 DATA SELECTORS/MULTIPLEXERS SDAS205A – APRIL 1982 – REVISED DECEMBER 1994 logic symbol† G A B C D0 D1 D2 D3 D4 D5 D6 D7 MUX 7 EN 11 0 10 0 G7 9 2 4 3 2 0 5 1 6 2 1 Y W 3 15 4 14 5 13 6 12 7 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages. logic diagram (positive logic) G D0 D1 D2 D3 Data Inputs 4 3 2 1 5 D4 D5 D6 D7 A Data Select (binary) 7 B C 15 6 14 13 12 11 10 9 Pin numbers shown are for the D, J, and N packages. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Y W SN54ALS151, SN74ALS151, SN74AS151 1-OF-8 DATA SELECTORS/MULTIPLEXERS SDAS205A – APRIL 1982 – REVISED DECEMBER 1994 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Operating free-air temperature range, TA: SN54ALS151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74ALS151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. recommended operating conditions SN54ALS151 SN74ALS151 MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IOH Low-level input voltage 0.7 0.8 High-level output current –1 – 2.6 mA IOL TA Low-level output current 12 24 mA 70 °C High-level input voltage 2 Operating free-air temperature 2 – 55 125 V V 0 V electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK TEST CONDITIONS VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 0.4 mA VCC = 4 4.5 5V IOH = – 1 mA IOH = – 2.6 mA VOL 5V VCC = 4 4.5 IOL = 12 mA IOL = 24 mA II IIH VCC = 5.5 V, VCC = 5.5 V, VI = 7 V VI = 2.7 V IIL IO§ VCC = 5.5 V, VCC = 5.5 V, VI = 0.4 V VO = 2.25 V VOH SN54ALS151 TYP‡ MAX MIN SN74ALS151 TYP‡ MAX MIN – 1.5 VCC – 2 2.4 – 1.5 V VCC – 2 V 3.3 2.4 0.25 – 20 UNIT 0.4 3.2 0.25 0.4 0.35 0.5 V 0.1 0.1 20 20 µA – 0.1 – 0.1 mA – 112 mA – 112 – 30 mA ICC VCC = 5.5 V, Inputs at 4.5 V 7.5 12 7.5 12 mA ‡ All typical values are at VCC = 5 V, TA = 25°C. § The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN54ALS151, SN74ALS151, SN74AS151 1-OF-8 DATA SELECTORS/MULTIPLEXERS SDAS205A – APRIL 1982 – REVISED DECEMBER 1994 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A B A, B, or C Y tPLH tPHL A B A, B, or C W tPLH tPHL An D Any Y tPLH tPHL An D Any W tPLH tPHL G Y tPLH tPHL G W VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX† SN54ALS151 SN74ALS151 MIN MAX MIN MAX 4 21 4 18 7 35 8 24 5 36 7 24 7 26 7 23 3 14 3 10 5 21 5 15 3 23 3 15 4 20 4 15 4 21 4 18 4 25 4 19 5 27 5 19 5 26 5 23 UNIT ns ns ns ns ns ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Operating free-air temperature range, TA: SN74AS151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C ‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. recommended operating conditions SN74AS151 VCC VIH Supply voltage VIL IOH Low-level input voltage IOL TA Low-level output current 4 High-level input voltage MIN NOM MAX 4.5 5 5.5 2 High-level output current Operating free-air temperature 0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT V V 0.8 V – 15 mA 48 mA 70 °C SN54ALS151, SN74ALS151, SN74AS151 1-OF-8 DATA SELECTORS/MULTIPLEXERS SDAS205A – APRIL 1982 – REVISED DECEMBER 1994 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH VOL II IIH IIL A, B, or C All others A, B, or C All others A, B, or C All others SN74AS151 TYP† MAX TEST CONDITIONS MIN VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 2 mA VCC = 4.5 V, VCC = 4.5 V, IOH = – 15 mA IOL = 48 mA VCC = 5 5.5 5V V, VI = 7 V VCC = 5 5.5 5V V, VI = 2 2.7 7V VCC = 5 5.5 5V V, VI = 0 0.4 4V – 1.2 VCC – 2 2.4 UNIT V V 3.2 0.35 0.5 0.2 0.1 40 20 –1 – 0.5 V mA µA mA IO‡ VCC = 5.5 V, VO = 2.25 V – 30 – 112 mA ICC VCC = 5.5 V 18.6 30 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A B, A, B or C Y tPLH tPHL A B, A, B or C W tPLH tPHL An D Any Y tPLH tPHL An D Any W tPLH tPHL G Y tPLH tPHL G W VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX§ SN74AS151 MIN MAX 4.5 14.5 4.5 15 4 12 4 12 3 10.5 3 11 2 6.5 1 4.5 4.5 14 3 11 1.5 6 3 10 UNIT ns ns ns ns ns ns § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 SN54ALS151, SN74ALS151, SN74AS151 1-OF-8 DATA SELECTORS/MULTIPLEXERS SDAS205A – APRIL 1982 – REVISED DECEMBER 1994 PARAMETER MEASUREMENT INFORMATION SERIES 54ALS/74ALS AND 54AS/74AS DEVICES 7V RL = R1 = R2 VCC S1 RL R1 Test Point From Output Under Test CL (see Note A) From Output Under Test RL Test Point From Output Under Test CL (see Note A) CL (see Note A) LOAD CIRCUIT FOR BI-STATE TOTEM-POLE OUTPUTS LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS 3.5 V Timing Input Test Point LOAD CIRCUIT FOR 3-STATE OUTPUTS 3.5 V High-Level Pulse 1.3 V R2 1.3 V 1.3 V 0.3 V 0.3 V Data Input tw th tsu 3.5 V 1.3 V 3.5 V Low-Level Pulse 1.3 V 0.3 V 1.3 V 0.3 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATIONS 3.5 V Output Control (low-level enabling) 1.3 V 1.3 V 0.3 V tPZL Waveform 1 S1 Closed (see Note B) tPLZ [3.5 V 1.3 V tPHZ tPZH Waveform 2 S1 Open (see Note B) 1.3 V VOL 0.3 V VOH 1.3 V 0.3 V [0 V 3.5 V 1.3 V Input 1.3 V 0.3 V tPHL tPLH VOH In-Phase Output 1.3 V 1.3 V VOL tPLH tPHL VOH Out-of-Phase Output (see Note C) 1.3 V 1.3 V VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. When measuring propagation delay items of 3-state outputs, switch S1 is open. D. All input pulses have the following characteristics: PRR ≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%. E. The outputs are measured one at a time with one transition per measurement. Figure 1. Load Circuits and Voltage Waveforms 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265