HD74HC540/HD74HC541 Octal Buffers/Line Drivers (with 3-state outputs) ADE-205-508 (Z) 1st. Edition Sep. 2000 Description The HD74HC540 is an inverting buffer and the HD74HC541 is a non-inverting buffer. The 3-state control gate operates as a two-input NOR such that if either G 1 or G 2 are high, all eight outputs are in the highimpedance state. Features • • • • • High Speed Operation: tpd = 11.5 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 Inputs Output Y G1 G2 A HD74HC540 HD74HC541 L L L H L L L H L H H X X Z Z X H X Z Z X : Z : irrelevant off (high-impedance) state of a 3-state output. HD74HC540/HD74HC541 Pin Arrangement HD74HC540 G1 1 20 VCC A1 2 19 G2 A2 3 18 Y1 A3 4 17 Y2 A4 5 16 Y3 A5 6 15 Y4 A6 7 14 Y5 A7 8 13 Y6 A8 9 12 Y7 GND 10 11 Y8 (Top view) 2 HD74HC540/HD74HC541 HD74HC541 G1 1 20 VCC A1 2 19 G2 A2 3 18 Y1 A3 4 17 Y2 A4 5 16 Y3 A5 6 15 Y4 A6 7 14 Y5 A7 8 13 Y6 A8 9 12 Y7 GND 10 11 Y8 (Top view) 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 Output current 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 3 HD74HC540/HD74HC541 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 — — 0.3 — 0.3 4.5 — — 1.35 — 1.35 6.0 — — 1.8 — 1.8 2.0 — 0.1 — — — 4.5 — 0.4 — — — 6.0 — 0.4 — — — 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 Hysteresis voltage VH Output voltage VOH VOL Test Conditions V 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 4 — HD74HC540/HD74HC541 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 — — 100 — 125 ns (HD74HC540 only) time 4.5 — 11 20 — 25 6.0 — — 17 — 21 t PLH 2.0 — — 115 — 145 ns (HD74HC541 only) t PHL 4.5 — 12 23 — 29 6.0 — — 20 — 25 Item Symbol t PHL Output enable t ZH 2.0 — — 150 — 190 time t ZL 4.5 — 14 30 — 38 6.0 — — 26 — 33 Output disable t HZ 2.0 — — 150 — 190 time t LZ 4.5 — 16 30 — 38 6.0 — — 26 — 33 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 Cin ns ns ns pF 5 HD74HC540/HD74HC541 Package Dimensions Unit: mm 24.50 25.40 Max 1 7.00 Max 11 6.30 20 10 1.30 2.54 ± 0.25 0.48 ± 0.10 0.51 Min 1.27 Max 7.62 2.54 Min 5.08 Max 0.89 + 0.11 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Mass (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 6 Hitachi Code JEDEC EIAJ Mass (reference value) FP-20DA — Conforms 0.31 g HD74HC540/HD74HC541 Unit: mm 12.8 13.2 Max 11 1 10 0.20 ± 0.10 0.935 Max *0.27 ± 0.05 0.25 ± 0.04 2.65 Max 7.50 20 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.25 10.40 +– 0.40 1.45 0° – 8° 0.57 0.70 +– 0.30 0.15 0.12 M Hitachi Code JEDEC EIAJ Mass (reference value) *Dimension including the plating thickness Base material dimension 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 Mass (reference value) TTP-20DA — — 0.07 g 7 HD74HC540/HD74HC541 Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi’s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor products. Hitachi, Ltd. Semiconductor & Integrated Circuits. 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