HD74HC373/HD74HC533 Octal D-type Transparent Latches (with 3-state outputs) Octal D-type Transparent Latches (with inverted 3-state outputs) Description When the latch enable input is high, the Q outputs of HD74HC373 will follow the D inputs and the Q outputs of HD74HC533 will follow the inversion of the D inputs. When the latch enable goes low, data at the D inputs will be retained at the outputs until latch enable returns high again. When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. Features • • • • • High Speed Operation: tpd (D to Q) = 16 ns typ (CL = 50 pF) High Output Current: Fanout of 15 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 Output Control Enable G D HD74HC373 Q HD74HC533 Q L H H H L L H L L H L L X No change No change H X X Z Z X : Z : irrelevant Off (high-impedance) state of a 3-state output. HD74HC373/HD74HC533 Pin Arrangement HD74HC373 Out put Control 1 20 VCC 1Q 2 19 8Q 1D 3 18 8D 2D 4 17 7D 2Q 5 16 7Q 3Q 6 15 6Q 3D 7 14 6D 4D 8 13 5D 4Q 9 12 5Q GND 10 11 Enable G (Top view) HD74HC533 Out put Control 1 20 VCC 1Q 2 19 8Q 1D 3 18 8D 2D 4 17 7D 2Q 5 16 7Q 3Q 6 15 6Q 3D 7 14 6D 4D 8 13 5D 4Q 9 12 5Q GND 10 11 Enable G (Top view) 2 HD74HC373/HD74HC533 Absolute Maximum Ratings Item Symbol Rating Unit Supply voltage range VCC –0.5 to +7.0 V Input voltage VIN –0.5 to VCC + 0.5 V Output voltage VOUT –0.5 to VCC + 0.5 V DC current drain per pin I OUT ±35 mA DC current drai per VCC GND I CC, I GND ±75 mA DC input diode current I IK ±20 mA DC output diode current I OK ±20 mA Power Dissipation per package PT 500 mW Storage temperature Tstg –65 to +150 °C Block Diagram HD74HC373 D GQ GQ GQ GQ GQ GQ GQ 8D D D D D D D D 7D 6D 5D 4D 3D 2D 1D GQ Enable G Output Control 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q 3 HD74HC373/HD74HC533 HD74HC533 D GQ GQ GQ GQ GQ GQ GQ 8D D D D D D D D 7D 6D 5D 4D 3D 2D 1D GQ Enable G Output Control 1Q 4 2Q 3Q 4Q 5Q 6Q 7Q 8Q HD74HC373/HD74HC533 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 = –6 mA 6.0 5.68 — — 5.63 — I OH = –7.8 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 = 6 mA 6.0 — — 0.26 — 0.33 I OL = 7.8 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 Off-state output current I OZ 6.0 — — ±0.5 — ±5.0 µA Vin = VIH or VIL, Vout = VCC or GND 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 — 5 HD74HC373/HD74HC533 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 — — 150 — 190 ns G to Q time 4.5 — 18 30 — 38 6.0 — — 26 — 33 t PLH 2.0 — — 125 — 155 ns D to Q t PHL 4.5 — 16 25 — 31 6.0 — — 21 — 26 2.0 — — 150 — 190 4.5 — 12 30 — 38 6.0 — — 26 — 33 2.0 — — 150 — 190 4.5 — 15 30 — 38 6.0 — — 26 — 33 2.0 — — 150 — 190 4.5 — 13 30 — 38 6.0 — — 26 — 33 2.0 — — 150 — 190 4.5 — 16 30 — 38 6.0 — — 26 — 33 2.0 100 — — 125 — 4.5 20 1 — 25 — 6.0 17 — — 21 — 2.0 50 — — 65 — 4.5 10 1 — 13 — 6.0 9 — — 11 — 2.0 80 — — 100 — 4.5 16 6 — 20 — 6.0 14 — — 17 — Item Output enable Symbol t PHL t ZL time t ZH Output disable t LZ time t HZ Setup time Hold time Pulse width t su th tw Output rise/fall t TLH 2.0 — — 60 — 75 time t THL 4.5 — 4 12 — 15 6.0 — — 10 — 13 — — 5 10 — 10 Input capacitance 6 Cin ns ns ns ns ns ns ns ns pF Unit: mm 24.50 25.40 Max 6.30 11 1 7.00 Max 20 10 1.30 2.54 ± 0.25 0.48 ± 0.10 0.51 Min 1.27 Max 2.54 Min 5.08 Max 0.89 7.62 + 0.11 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-20N — Conforms 1.26 g Unit: mm 12.6 13 Max 11 1 10 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 20 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-20DA — Conforms 0.31 g Unit: mm 12.8 13.2 Max 11 1 10 0.20 ± 0.10 0.935 Max 1.27 *0.42 ± 0.08 0.40 ± 0.06 *0.27 ± 0.05 0.25 ± 0.04 2.65 Max 7.50 20 0.25 10.40 +– 0.40 1.45 0° – 8° 0.57 0.70 +– 0.30 0.15 0.12 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-20DB Conforms — 0.52 g Unit: mm 6.50 6.80 Max 11 1 10 4.40 20 0.65 *0.22+0.08 –0.07 0.20 ± 0.06 1.0 0.13 M 6.40 ± 0.20 *Dimension including the plating thickness Base material dimension 0.07 +0.03 –0.04 0.10 *0.17 ± 0.05 0.15 ± 0.04 1.10 Max 0.65 Max 0° – 8° 0.50 ± 0.10 Hitachi Code JEDEC EIAJ Weight (reference value) TTP-20DA — — 0.07 g Cautions 1. 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