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SNJ54ALS169BFK Datasheet(PDF) 6 Page - Texas Instruments |
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SNJ54ALS169BFK Datasheet(HTML) 6 Page - Texas Instruments |
6 / 20 page SN54ALS169B, SN54AS169A, SN74ALS169B, SN74AS169A SYNCHRONOUS 4BIT UP/DOWN BINARY COUNTERS SDAS125B − MARCH 1984 − REVISED DECEMBER 1994 2−6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX† UNIT PARAMETER (INPUT) (OUTPUT) SN54ALS169B SN74ALS169B UNIT MIN MAX MIN MAX fmax 22 40 MHz tPLH CLK RCO 3 20 3 20 ns tPHL CLK RCO 6 25 6 20 ns tPLH CLK Any Q 2 20 2 15 ns tPHL CLK Any Q 5 23 5 20 ns tPLH ENT RCO 2 16 2 13 ns tPHL ENT RCO 3 24 3 16 ns tPLH U/D RCO 4 22 5 19 ns tPHL U/D RCO 5 26 5 19 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: SN54AS169A −55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74AS169A 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 SN54AS169A SN74AS169A UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V IOH High-level output current −2 −2 mA IOL Low-level output current 20 20 mA fclock* Clock frequency 0 60 0 75 MHz tw* Pulse duration, CLK high or low 7.7 6.7 ns A, B, C, or D 10 8 tsu* Setup time before CLK ↑ ENP or ENT 10 8 ns tsu* Setup time before CLK ↑ LOAD 10 8 ns U/D 14 11 th* Hold time, data after CLK ↑ 2 0 ns TA Operating free-air temperature −55 125 0 70 °C * On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested. |
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