HD74HC75 Quad. Bistable Latches Description This latch is ideally suited for use as temporary storage for binary information processing, input/output, and indicator units. Information present at the data (D) input is transferred to the Q output when the latch enable (LE) is high. The Q output will follow the data input as long as the enable remains high. when the enable goes low, the information that was present at the data input at the time the transition occurred is retained at thte Q output unit the enable is permitted to go high again. Features • • • • • High Speed Operation: tpd (D to Q) = 12.5 ns typ (C L = 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) = 2 µA max (Ta = 25°C) Function Table Inputs Outputs D Latch Enable Q Q L H L H H H H L X L Q0 Q0 HD74HC75 Pin Arrangement Q0a 1 16 Q0a D0a 2 15 Q1a D1a 3 14 Q1a LEb 4 13 LEa VCC 5 12 GND D0b 6 11 Q0b D1b 7 10 Q0b Q1b 8 9 Q1b (Top view) Block Diagram Data Q Q Latch Enable 2 HD74HC75 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 — — 2.0 20 µA Vin = VCC or GND, Iout = 0 µA — 3 HD74HC75 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = –40 to +85°C Ta = 25°C VCC (V) Min Typ Max Min Max Unit Test Conditions Propagation delay t PLH 2.0 — — 125 — 155 ns D to Q time 4.5 — 12 25 — 31 6.0 — — 21 — 26 2.0 — — 110 — 140 4.5 — 13 22 — 28 6.0 — — 19 — 24 2.0 — — 145 — 180 4.5 — 12 29 — 36 6.0 — — 25 — 31 2.0 — — 125 — 155 4.5 — 13 25 — 31 6.0 — — 21 — 26 Item Symbol t PHL Output rise/fall t TLH 2.0 — — 75 — 95 time t THL 4.5 — 5 15 — 19 6.0 — — 13 — 16 2.0 100 — — 125 — 4.5 20 4 — 25 — 6.0 17 — — 21 — 2.0 5 — — 5 — 4.5 5 0 — 5 — 6.0 5 — — 5 — 2.0 80 — — 100 — 4.5 16 5 — 20 — 6.0 14 — — 17 — — — 5 10 — 10 Setup time Hold time Pulse width Input capacitance 4 t su th tw Cin D to Q Latch Enable to Q Latch Enable to Q ns ns Data to Latch Enable ns Latch Enable to Data ns Latch Enable pF 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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