HD74HC4017 Datasheet | Hitachi Semiconductor

Description The HD74HC4017 is a 5-stage divide-by-10 Johnson counter with ten decoded outputs and a carry-out bit. High-speed operation and spike-free outputs are obtained by use of the Johnson decade counter configuration. The ten decoded outputs are normally low and go high only at their respective decimal time periods. A high signal on Reset R asynchronously clears the decade counter and sets the carry output and Y 0 high. With CE low, the count is advanced on a low-to-high transition at C input. Alternatively, if C is high, the count is advanced on a high-to-low transition at CE. Each decoded output remains high for one full clock cycle. The carry output is high while Q0, Q 1, Q2, Q3 or Q4 is high, then is low while Q5, Q6, Q7, Q8 or Q9 is high. Features - - - - - High Speed Operation High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table C L X X CE X H X L X X H Notes: 1. X: Don’t care 2. If n < 5 Carry = “H”, Otherwise = “L” R L L H L L L L Decode Output = n n n Q0 n+1 n n n+1 Pin Arrangement Q5 Q1 Q0 Q2 Q6 Q7 Q3 GND 1 2 3 4 5 6 7 8 (Top view) Q1 Q0 Q2 Q6 Q7 Q3 Q5 Reset Clock Clock enable Cout Q9 Q4 16 VCC 15 R 14 C 13 CE 12 Cout 11 Q9 10 Q4 9 Q8 Q8 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = - 40 to +85°C Max - - - 0.5 1.35 1.8 - - - - - 0.1 0.1 0.1 0.33 0.33 ±1.0 40 µA µA I OL = 4 m A I OL = 5.2 m A Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA V I OH = - 4 m A I OH = - 5.2 m A Vin = VIH or VIL I OL = 20 µA V Vin = VIH or VIL I OH = - 20 µA V Unit V Test Conditions VCC (V) Min Typ Max Min 2.0 4.5 6.0 1.5 - 3.15 - 4.2 - - - - - - - - - - 0.5 1.5 3.15 4.2 - VIL 2.0 4.5 6.0 - 1.8 - 1.9 4.4 5.9 4.13 5.63 - - - Output...