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| HD74AC4514 4-bit Latch/4-to-16-Line Decoder Description This device presents a 4 to 16 line decoder with latched inputs. The HD74AC4514 presents a high level at the selected output. This device consists of four storage latches with common strobe and inhibit (G) inputs. When a low signal is applied to the strobe input, the input data is stored, decoded, and presented to the output. When strobe is high, all sixteen HD74HC4514 outputs are at a low logic level. Feature * Outputs Source/Sink 24 mA HD74AC4514 Pin Arrangement Strobe 1 Data1 2 Data2 3 S7 4 S6 5 S5 6 S4 7 S3 8 S2 9 S1 10 S0 11 GND 12 (Top view) 24 VCC 23 Inhibit 22 Data4 21 Data3 20 S10 19 S11 18 S8 17 S9 16 S14 15 S15 14 S12 13 S13 Logic Symbol S0 S1 S2 S3 S4 S5 S6 4 to 16 S7 Decoder S8 S9 S10 S11 S12 S13 S14 S15 11 9 10 8 7 6 5 4 18 17 20 19 14 13 16 15 Data 1 Data 2 Data 3 Data 4 Strobe 2 3 21 22 1 Latch A B C D Inhibit 23 2 HD74AC4514 Pin Names D1 to D4 Strobe Data1 to 4 S 0 to S15 Inhibit Data Inputs Data Strobe Input Data Inputs Outputs Data Enable Input Function Table (Strobe = High) Data Inputs Inhibit L L L L L L L L L L L L L L L L H D L L L L L L L L H H H H H H H H X C L L L L H H H H L L L L H H H H X B L L H H L L H H L L H H L L H H X A L H L H L H L H L H L H L H L H X Select Outputs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 All output "L" 3 HD74AC4514 Logic Diagram S0 S1 S2 S3 Data 1 D LE Data 2 D LE Q Q Q Q S7 Data 3 D LE Data 4 D LE Q Q S9 Q Q S10 S11 Strobe S12 S13 S14 S15 INH S8 S4 S5 S6 DC Characteristics (unless otherwise specified) Item Maximum quiescent supply current Maximum quiescent supply current Symbol I CC I CC Max 80 8.0 Unit A A Condition VIN = VCC or ground, VCC = 5.5 V, Ta = Worst case VIN = VCC or ground, VCC = 5.5 V, Ta = 25C 4 HD74AC4514 AC Characteristics: HD74AC4514 Ta = +25C CL = 50 pF Item Propagation delay Dn to On Propagation delay Dn to On Propagation delay OE to On Propagation delay OE to On Propagation delay LE to On Propagation delay LE to On Note: t PHL t PLH t PHL t PLH t PHL Symbol t PLH VCC (V)*1 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 Min 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Typ 12.0 9.0 12.5 9.0 9.5 7.0 9.0 6.5 14.0 10.0 14.5 10.5 Max 15.5 11.0 15.5 11.0 15.0 10.5 15.0 10.5 19.0 13.5 19.0 13.5 Ta = -40C to +85C CL = 50 pF Min 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Max 17.0 12.0 17.0 12.0 16.0 11.5 16.5 11.5 21.0 15.0 21.0 15.0 ns ns ns ns ns Unit ns 1. Voltage Range 3.3 is 3.3 V 0.3 V Voltage Range 5.0 is 5.0 V 0.5 V AC Operating Requirements: HD74AC4514 Ta = +25C CL = 50 pF Item Setup time, HIGH or LOW Dn to Strobe Hold time, HIGH or LOW Dn to Strobe Pulse width, HIGH tw th Symbol t su VCC (V)*1 Typ 3.3 5.0 3.3 5.0 3.3 5.0 Note: 1. Voltage Range 3.3 is 3.3 V 0.3 V Voltage Range 5.0 is 5.0 V 0.5 V 1.5 1.0 -1.0 -0.5 3.0 3.0 Ta = -40C to +85C CL = 50 pF Guaranteed Minimum 3.5 3.0 2.5 1.5 5.5 4.5 4.0 3.5 3.0 2.0 7.0 5.0 ns ns Unit ns 5 HD74AC4514 Capacitance Item Input capacitance Power dissipation capacitance Symbol CIN CPD Typ 4.5 10.0 Unit pF pF Condition VCC = 5.5 V VCC = 5.0 V 6 Unit: mm 30.4 31.75 Max 24 13 6.6 7.0 Max 1 0.88 1.90 Max 1.3 12 5.08 Max 7.62 0.51 Min 2.54 Min 2.54 0.25 0.48 0.10 0.25 - 0.05 0 - 15 + 0.11 Hitachi Code JEDEC EIAJ Weight (reference value) DP-24N -- Conforms 1.84 g 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 (03) 3270-2111 Fax: (03) 3270-5109 URL NorthAmerica : http:semiconductor.hitachi.com/ Europe : http://www.hitachi-eu.com/hel/ecg Asia (Singapore) : http://www.has.hitachi.com.sg/grp3/sicd/index.htm Asia (Taiwan) : http://www.hitachi.com.tw/E/Product/SICD_Frame.htm Asia (HongKong) : http://www.hitachi.com.hk/eng/bo/grp3/index.htm Japan : http://www.hitachi.co.jp/Sicd/indx.htm For further information write to: Hitachi Semiconductor (America) Inc. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223 Hitachi Europe GmbH Electronic components Group Dornacher Strae 3 D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9 9180-0 Fax: <49> (89) 9 29 30 00 Hitachi Europe Ltd. Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000 Fax: <44> (1628) 778322 Hitachi Asia Pte. Ltd. 16 Collyer Quay #20-00 Hitachi Tower Singapore 049318 Tel: 535-2100 Fax: 535-1533 Hitachi Asia Ltd. Taipei Branch Office 3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105) Tel: <886> (2) 2718-3666 Fax: <886> (2) 2718-8180 Hitachi Asia (Hong Kong) Ltd. Group III (Electronic Components) 7/F., North Tower, World Finance Centre, Harbour City, Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong Tel: <852> (2) 735 9218 Fax: <852> (2) 730 0281 Telex: 40815 HITEC HX Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan. |
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