View HD74HC95_270762.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

HD74HC95
4-bit Parallel Access Shift Register
Description
This 4-bit register features parallel and serial inputs, parallel outputs, mode control, and two clock inputs. The register has three mode operation: * Parallel (broadside) load * Shift right (the direction Q A toward QD) * Shift left (the direction QD toward QA) Parallel loading is accomplished by applying the four bits of data and taking the mode conrol input high. The data is loaded into the associated flip-flops and appears at the outputs after the high-to-low transition of the clock-2 input. During loading, the entry of serial data is inhibited. Shift right is accomplished on the high-to-low transition of clock-1 when the mode control is low; shift left is accomplished on the high-tolow transition of clock-2 when the mode control is high by connecting the output of each flip-flop (Q D to input C, etc.) and serial data is entered at input D. The clock input may be applied commonly to clock-1 and clock-2 if both modes can be clocked from the same source. Changes at the mode control input should normally be made while both clock inputs are low: however, conditions described in the last three lines of the function table will also ensure that register contents are protected.
Features
* * * * * High Speed Operation: tpd (Clock to Q) = 17 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 A max Low Quiescent Supply Current: ICC (static) = 4 A max (Ta = 25C)
HD74HC95
Function Table
Inputs Clocks Mode Control 2 (L) H H H L L L L X X L L L H H L L H L H H 1 (R) X X X H Serial X X X X H L X X X X X Parallel A X a QB+ X X X X X X X X B X b QC+ X X X X X X X X C X c QD+ X X X X X X X X D X d d X X X X X X X X Outputs QA QA0 a QBn QA0 H L QA0 QA0 QA0 QA0 QA0 QB QB0 b QCn QB0 QAn QAn QB0 QB0 QB0 QB0 QB0 QC QC0 c QDn QC0 QBn QBn QC0 QC0 QC0 QC0 QC0 QD QD0 d d QD0 QCn QCn QD0 QD0 QD0 QD0 QD0
Pin Arrangement
Serial Input A B Inputs C D Mode Control GND
1 2 3 4 5 6 7 A Input QA B C D QB QC QD
Serial
14 VCC 13 QA 12 QB Outputs 11 QC 10 QD 9 8 Clock1 R-Shift Clock2 L-Shift (Load)
Mode CK1
CK2 (Top View)
2
HD74HC95
DC Characteristics
Ta = 25C Item Input voltage Symbol VIH Ta = -40 to +85C Max -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.33 0.33 1.0 40 A A I OL = 4 mA I OL = 5.2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 A V I OH = -4 mA I OH = -5.2 mA Vin = VIH or VIL I OL = 20 A V Vin = VIH or VIL I OH = -20 A 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
3
HD74HC95
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25C Item Maximum clock frequency Symbol f max Ta = -40 to +85C Max 3 16 19 180 36 31 215 43 37 -- -- -- -- -- -- -- -- -- 95 19 16 10 pF ns ns ns ns Clock ns ns Unit MHz Test Conditions
VCC (V) Min Typ Max Min 2.0 4.5 6.0 -- -- -- -- -- -- -- -- -- 80 16 14 -- -- -- -- 17 -- -- 17 -- -- 6 -- 4 20 24 -- -- --
Propagation delay t PLH time
2.0 4.5 6.0
145 -- 29 25 -- --
t PHL
2.0 4.5 6.0
170 -- 34 29 -- -- -- -- -- -- -- -- -- 75 15 13 10 -- -- 100 20 17 125 25 21 10 10 10 -- -- -- --
Pulse width
tw
2.0 4.5 6.0
Setup time
t su
2.0 4.5 6.0
100 -- 20 17 10 10 10 -- -- -- -- 2 -- -- -1 -- -- 5 -- 5
Hold time
th
2.0 4.5 6.0
Output rise/fall time
t TLH t THL
2.0 4.5 6.0
Input capacitance
Cin
--
4
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 0.70 0.20
+ 0.20
1.42 Max
1.27 *0.42 0.08 0.40 0.06
0.12 M
Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DA -- Conforms 0.23 g
*Dimension including the plating thickness Base material dimension
0.10 0.10 0.15
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
0.11 0.14 + 0.04 -
1.27 *0.40 0.06
0.67 0.60 + 0.20 -
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 (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.

▲Up To Search▲

Price & Availability of HD74HC95

	To Download HD74HC95 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .