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HD74HC280 Dataheets PDF



Part Number HD74HC280
Manufacturers Hitachi Semiconductor
Logo Hitachi Semiconductor
Description 9-bit Odd/Even Parity Generator/Checker
Datasheet HD74HC280 DatasheetHD74HC280 Datasheet (PDF)

HD74HC280 9-bit Odd/Even Parity Generator/Checker Description This parity generator/checker features odd/even outputs to facilitate operation of either odd or even parity applications. The word length capability is easily expanded by cascading devices. Features • • • • • High Speed Operation: tpd (Data to Even or Odd) = 22 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 (stat.

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HD74HC280 9-bit Odd/Even Parity Generator/Checker Description This parity generator/checker features odd/even outputs to facilitate operation of either odd or even parity applications. The word length capability is easily expanded by cascading devices. Features • • • • • High Speed Operation: tpd (Data to Even or Odd) = 22 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) = 4 µA max (Ta = 25°C) Function Table Outputs Number of inputs A through I that are high 0, 2, 4, 6, 8 1, 3, 5, 7, 9 ∑ Even H L ∑ Odd L H HD74HC280 Pin Arrangement G Inputs H NC Input I ∑ Even Outputs ∑ Odd GND 1 G 2 3 4 5 6 7 I ∑ Even ∑ Odd A H F E D C B 14 13 12 11 10 9 8 VCC F E D Inputs C B A (Top view) 2 HD74HC280 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 mA I OL = 5.2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA V I OH = –4 mA I OH = –5.2 mA 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 1.35 — 1.8 — 1.9 4.4 5.9 4.13 5.63 — — — Output voltage VOH 2.0 4.5 6.0 4.5 6.0 1.9 2.0 — 4.4 4.5 — 5.9 6.0 — 4.18 — 5.68 — — — — — — — — — — VOL 2.0 4.5 6.0 4.5 6.0 0.0 0.1 0.0 0.1 0.0 0.1 — — — — 0.26 — 0.26 — ±0.1 — 4.0 — Input current Quiescent supply current Iin I CC 6.0 6.0 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = 25°C Item Symbol Ta = –40 to +85°C Max 255 51 43 95 19 16 10 pF ns Unit ns Test Conditions Data to ∑ Even or ∑ Odd VCC (V) Min Typ Max Min 2.0 4.5 6.0 — — — — — — — — 22 — — 5 — 5 205 — 41 35 75 15 13 10 — — — — — — Propagation delay t PLH time t PHL Output rise/fall time t TLH t THL 2.0 4.5 6.0 Input capacitance Cin — 3 Unit: mm 19.20 20.32 Max 14 8 6.30 7.40 Max 1 2.39 Max 1.30 7 7.62 0.51 Min 2.54 Min 5.06 Max 2.54 ± 0.25 0.48 ± 0.10 0.25 – 0.05 0° – 15° + 0.10 Hitachi Code JEDEC EIAJ Weight (reference value) DP-14 Conforms Conforms 0.97 g Unit: mm 10.06 10.5 Max 14 8 5.5 1 7 *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 7.80 – 0.30 1.15 0° – 8° + 0.20 1.42 Max 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.70 ± 0.20 0.15 0.12 M Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DA — Conforms 0.23 g *Dimension including the plating thickness Base material dimension Unit: mm 8.65 9.05 Max 14 8 3.95 1 1.75 Max 7 *0.20 ± 0.05 6.10 – 0.30 1.08 + 0.10 0.635 Max 0° – 8° 0.67 0.60 + – 0.20 1.27 *0.40 ± 0.06 0.11 0.14 + – 0.04 0.15 0.25 M Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DN Conforms Conforms 0.13 g *Pd plating 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. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (0.


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