HD74HC4040 12-stage Binary Counter Description The HD74HC4040 is a 12-stage counter. This device is incremented on the falling edge (negative transition) of the input clock, and all its output is reset to a low level by applying a logical high on its reset input. Features • • • • • High Speed Operation: tpd (Clock to Q1) = 15 ns typ (CL = 50 pF) 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 X X: Irrelevant Reset Outputs State L No change L Advance to next stage H All outputs are low HD74HC4040 Pin Arrangement Q12 1 16 VCC Q6 2 Q6 Q5 3 Q7 Q12 Q11 15 Q11 Q5 Q10 14 Q10 4 Q7 Q8 13 Q8 Q4 5 Q4 Q9 12 Q9 Q3 6 Q3 Reset 11 R Q2 7 Q2 Clock 10 C GND 8 Q1 9 Q1 (Top view) Block Diagram Q1 Clock Reset 2 Q2 Q3 Q10 Q11 Q12 C Q C Q C Q C Q C Q C Q C Q R C Q R C Q R C Q R C Q R C R HD74HC4040 Timing Diagram Clock 1 2 4 8 16 32 64 128 256 512 1,024 2,048 4,096 Reset Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 3 HD74HC4040 DC Characteristics Ta = –40 to +85°C Ta = 25°C Item Symbol VCC (V) Min Typ Max Min Max Unit Input voltage VIH 2.0 1.5 — — 1.5 — V 4.5 3.15 — — 3.15 — 6.0 4.2 — — 4.2 — 2.0 — — 0.5 — 0.5 4.5 — — 1.35 — 1.35 6.0 — — 1.8 — 1.8 2.0 1.9 2.0 — 1.9 — 4.5 4.4 4.5 — 4.4 — 6.0 5.9 6.0 — 5.9 — 4.5 4.18 — — 4.13 — I OH = –4 mA 6.0 5.68 — — 5.63 — I OH = –5.2 mA 2.0 — 0.0 0.1 — 0.1 4.5 — 0.0 0.1 — 0.1 6.0 — 0.0 0.1 — 0.1 4.5 — — 0.26 — 0.33 I OL = 4 mA 6.0 — — 0.26 — 0.33 I OL = 5.2 mA VIL Output voltage VOH VOL Test Conditions V V V Vin = VIH or VIL I OH = –20 µA Vin = VIH or VIL I OL = 20 µA Input current Iin 6.0 — — ±0.1 — ±1.0 µA Vin = VCC or GND Quiescent supply current I CC 6.0 — — 4.0 40 µA Vin = VCC or GND, Iout = 0 µA 4 — HD74HC4040 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = –40 to +85°C Ta = 25°C Item Symbol VCC (V) Min Typ Max Min Max Unit Maximum clock f max 2.0 — — 5 — 4 MHz 4.5 — — 25 — 20 6.0 — — 29 — 24 Propagation delay t PLH 2.0 — — 175 — 220 time 4.5 — 15 35 — 44 6.0 — — 30 — 37 2.0 — — 175 — 220 4.5 — 16 35 — 44 6.0 — — 30 — 37 2.0 — — 200 — 250 4.5 — 18 40 — 50 6.0 — — 34 — 43 t PLH 2.0 — — 100 — 125 t PHL 4.5 — 4 20 — 25 6.0 — — 17 — 21 2.0 100 — — 125 — 4.5 20 — — 25 — 6.0 17 — — 21 — 2.0 80 — — 100 — 4.5 16 5 — 20 — 6.0 14 — — 17 — frequency t PHL t PHL Removal time Pulse width t rem tw Output rise/fall t TLH 2.0 — — 75 — 95 time t THL 4.5 — 5 15 — 19 6.0 — — 13 — 16 — — 5 10 — 10 Input capacitance Cin Test Conditions ns Clock to Q1 ns Clock to Q1 ns Reset to output ns Qn to Q n – 1 ns ns ns pF 5 Unit: mm 19.20 20.00 Max 1 7.40 Max 9 6.30 16 8 1.3 0.48 ± 0.10 2.54 Min 5.06 Max 2.54 ± 0.25 0.51 Min 1.11 Max 7.62 + 0.13 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-16 Conforms Conforms 1.07 g Unit: mm 10.06 10.5 Max 9 1 8 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.80 Max *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 5.5 16 0.20 7.80 +– 0.30 1.15 0° – 8° 0.70 ± 0.20 0.15 0.12 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DA — Conforms 0.24 g Unit: mm 9.9 10.3 Max 9 1 8 0.635 Max *0.42 ± 0.08 0.40 ± 0.06 0.15 *0.22 ± 0.03 0.20 ± 0.03 1.27 0.11 0.14 +– 0.04 1.75 Max 3.95 16 0.10 6.10 +– 0.30 1.08 0° – 8° 0.67 0.60 +– 0.20 0.25 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DN Conforms Conforms 0.15 g Cautions 1. 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