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SN74AS161D 데이터시트(PDF) 10 Page - Texas Instruments |
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SN74AS161D 데이터시트(HTML) 10 Page - Texas Instruments |
10 / 14 page SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163 SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163 SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS SDAS276 – DECEMBER 1994 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54AS161 SN54AS163 SN74AS161 SN74AS163 UNIT MIN TYP† MAX MIN TYP† MAX VIK VCC = 4.5 V, II = – 18 mA – 1.2 – 1.2 V VOH VCC = 4.5 V to 5.5 V, IOH = – 2 mA VCC –2 VCC –2 V VOL VCC = 4.5 V, IOL = 20 mA 0.25 0.5 0.25 0.5 V LOAD 0.3 0.3 II ENT VCC = 5.5 V, VI = 7 V 0.2 0.2 mA All others 0.1 0.1 LOAD 60 60 IIH ENT VCC = 5.5 V, VI = 2.7 V 40 40 µA All others 20 20 LOAD –1.5 –1.5 IIL ENT VCC = 5.5 V, VI = 0.4 V –1 –1 mA All others – 0.5 – 0.5 IO‡ VCC = 5.5 V, VO = 2.25 V –30 –112 –30 –112 mA ICC VCC = 5.5 V 35 53 35 53 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 3) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX§ UNIT (INPUT) (OUTPUT) SN54AS161 SN74AS161 MIN MAX MIN MAX fmax* 65 75 MHz tPLH RCO (with LOAD high) 1 8.5 1 8 tPLH CLK RCO (with LOAD low) 3 17.5 3 16.5 ns tPHL RCO 2 14 2 12.5 tPLH CLK Any Q 1 7.5 1 7 ns tPHL CLK Any Q 2 14 2 13 ns tPLH ENT RCO 1.5 10 1.5 9 ns tPHL ENT RCO 1 9.5 1 8.5 ns tPHL CLR Any Q 2 14 2 13 ns tPHL CLR RCO 2 14 2 12.5 ns * On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested. § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
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