поискавой системы для электроныых деталей |
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74HCT4017PW датащи(PDF) 2 Page - NXP Semiconductors |
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74HCT4017PW датащи(HTML) 2 Page - NXP Semiconductors |
2 / 12 page December 1990 2 Philips Semiconductors Product specification Johnson decade counter with 10 decoded outputs 74HC/HCT4017 FEATURES • Output capability: standard • ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT4017 are high-speed Si-gate CMOS devices and are pin compatible with the “4017” of the “4000B” series. They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT4017 are 5-stage Johnson decade counters with 10 decoded active HIGH outputs (Q0 to Q9), an active LOW output from the most significant flip-flop (Q5-9), active HIGH and active LOW clock inputs (CP0 and CP1) and an overriding asynchronous master reset input (MR). The counter is advanced by either a LOW-to-HIGH transition at CP0 while CP1 is LOW or a HIGH-to-LOW transition at CP1 while CP0 is HIGH (see also function table). When cascading counters, the Q5-9 output, which is LOW while the counter is in states 5, 6, 7, 8 and 9, can be used to drive the CP0 input of the next counter. A HIGH on MR resets the counter to zero (Q0 = Q5-9 = HIGH; Q1 to Q9 = LOW) independent of the clock inputs (CP0 and CP1). Automatic code correction of the counter is provided by an internal circuit: following any illegal code the counter returns to a proper counting mode within 11 clock pulses. QUICK REFERENCE DATA GND = 0 V; Tamb =25 °C; tr =tf = 6 ns Notes 1. CPD is used to determine the dynamic power dissipation (PD in µW): PD =CPD × VCC2 × fi+∑ (CL × VCC2 × fo) where: fi = input frequency in MHz fo = output frequency in MHz ∑ (CL × VCC2 × fo) = sum of outputs CL = output load capacitance in pF VCC = supply voltage in V 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC − 1.5 V ORDERING INFORMATION See “74HC/HCT/HCU/HCMOS Logic Package Information”. SYMBOL PARAMETER CONDITIONS TYPICAL UNIT HC HCT tPHL/ tPLH propagation delay CP0, CP1 to Qn CL = 15 pF; VCC = 5 V 2021ns fmax maximum clock frequency 77 67 MHz CI input capacitance 3.5 3.5 pF CPD power dissipation capacitance per package notes 1 and 2 35 36 pF |
Аналогичный номер детали - 74HCT4017PW |
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Аналогичное описание - 74HCT4017PW |
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