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HD74HC673
16-bit Shift Register
Description
The HD74HC673 is a 16-bit shift register and a 16-bit storage register in a single 24-pin package. A threestate input/output (data I/O) port to the shift register allows serial entry and/or reading of data. The storage register is connected in a parallel data loop with the shift register and may be asynchronously cleared by taking the store-clear input low. The storage register may be parallel loaded with shift-register data to provide shift-register status via the parallel outputs. The shift register can be parallel loaded with the storage-register data upon command. A high logic level at the chip-select (CS) input disables both the shift-register clock and the storage register clock and places the data I/O in the high-impedance state. The store-clear function is not disabled by the chip select. Caution must be exercised to prevent false clocking of either the shift register or the storage register via the chip-select input. The shift clock should be low during the low-to-high transition of chip select and the store clock should be low during the high-to-low transition of chip select.
Features
* * * * * High Speed Operation: tpd (MODE/STRCLK to Y) = 23 ns typ (C L = 50 pF) High Output Current: Fanout of 15 LSTTL Loads (Q15 output) 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)
HD74HC673
Function Table
Inputs Mode/ CS H X L L L L L L R/W SHCLK X X L H H H H L X X X X STRCLR X L X X X L H H STRCLK X X X X L H H Z Q15 Q14n L Y15n Z Yes No Yes Yes Yes No No Yes Yes No Yes No No No Yes Yes No Yes No No No No No No No Yes SER/ Q15 Z Shift Register Functions Read from Write into Storage Register Parallel Functions Clear Load No Yes
Shift Serial Output Serial Input Load No No No No
Pin Arrangement
CS SH CLK R/W STRCLR Mode/STRCLK SER/Q15 Y0 Y1 Y2 Y3 Y4 GND
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VCC Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8 Y7 Y6 Y5
(Top view)
2
HD74HC673
Absolute Maximum Ratings
Item Supply voltage range Input voltage Output voltage Output current DC current drain per VCC, GND DC input diode current DC output diode current Power dissipation per package Storage temperature Symbol VCC VIN VOUT I OUT I CC, I GND I IK I OK PT Tstg Rating -0.5 to +7.0 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 35 75 20 20 500 -65 to +150 Unit V V V mA mA mA mA mW C
Logic Diagram
SER Q15
IN PE SCK P Q D CK CLR Y
Y0
Y1
Y2
Y13
X12
Y14
Y15
CS SHCLK RW MS STRCLR
VCC
3
HD74HC673
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 -- -- -- -- -- 0.1 0.1 0.1 0.33 0.33 5.0 1.0 40 A A A I OL = 4 mA I OL = 5.2 mA Vin = VIH or VIL, Vout = VCC or GND Vin = VCC or GND Vin = VCC or GND, Iout = 0 A V Y0 to Y 15 Vin = VIH or VIL I OH = -4 mA I OH = -5.2 mA I OL = 20 A V Y0 to Y 15 Vin = VIH or VIL I OL = 6 mA I OL = 7.8 mA I OH = -20 A V Q15 Vin = VIH or VIL I OH = -6 mA I OH = -7.8 mA I OL = 20 A V Q15 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 -- 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 -- 0.5 -- 0.1 -- 4.0 --
Off-state output current Input current Quiescent supply current
I OZ Iin I CC
6.0 6.0 6.0
4
HD74HC673
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25C Item Maximum clock frequency Symbol f max Ta = -40 to +85C Max 4 21 25 250 50 43 250 50 43 250 50 43 190 38 33 190 38 33 -- -- -- -- -- -- -- -- -- -- -- -- ns SH CLK to SER/Q15 ns CS to R/W ns SER/Q15 to SH CLK ns ns ns ns SHCLK to SER/Q 15 ns Mode/STRCLK to Y ns STRCLR to Y Unit MHz Test Conditions
VCC (V) Min Typ Max Min 2.0 4.5 6.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 80 16 14 -- -- -- -- 23 -- -- 23 -- -- 19 -- -- -- -- -- -- -- -- 6 -- 5 27 32 -- -- --
Propagation delay t PLH time t PHL
2.0 4.5 6.0
200 -- 40 34 -- --
t PLH t PHL
2.0 4.5 6.0
200 -- 40 34 -- --
t PLH t PHL
2.0 4.5 6.0
200 -- 40 34 -- --
Output enable time
t ZH t ZL
2.0 4.5 6.0
150 -- 30 26 -- --
Output disable time
t HZ t LZ
2.0 4.5 6.0
150 -- 30 26 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 100 20 17 125 25 21 125 25 21 5 5 5
Pulse width
tw
2.0 4.5 6.0
Setup time
t su
2.0 4.5 6.0
100 -- 20 17 1 --
t su
2.0 4.5 6.0
100 -- 20 17 5 5 5 7 -- -- 0 --
Hold time
th
2.0 4.5 6.0
5
HD74HC673
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) (cont)
Ta = 25C Item Output rise/fall time Symbol t TLH t THL Ta = -40 to +85C Max 75 15 13 95 19 16 10 pF ns Other Pins Unit ns Test Conditions 6 Pin
VCC (V) Min Typ Max Min 2.0 4.5 6.0 -- -- -- -- -- -- -- -- 4 -- -- 5 -- 5 60 12 10 75 15 13 10 -- -- -- -- -- -- --
t TLH t THL
2.0 4.5 6.0
Input capacitance
Cin
--
6
Unit: mm
24 31.6 32.5 Max 13
1
2.13 Max
1.2
12 5.70 Max
15.0 Max
13.4
15.24
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-24 Conforms Conforms 3.1 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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