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| HD74LVCZ245A Octal Bidirectional Transceivers with 3-state Outputs ADE-205-228A (Z) 2nd. Edition February 1999 Description The HD74LVCZ245A has eight buffers with three state outputs in a 20 pin package. When (T / R) is high, data flows from the A inputs to the B outputs, and when (T / R) is low, data flows from the B inputs to the A outputs. A and B bus are separated by making enable input (OE) high level. When V CC is between 0 and 1.5 V, the device is in the high impedance state during power up or power down. Low voltage and high speed operation is suitable at battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation. Features * VCC = 2.7 to 5.5 V * All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V) * All inputs / outputs V I / O (Max) = 5.5 V (@V CC = 0 V or output off state) * Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25C) * Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25C) * High impedance state during power up and power down * Power off disables outputs, permitting live insertion * High output current 24 mA (@V CC = 3.0 to 5.5 V) HD74LVCZ245A Function Table Inputs OE L L H H : High level L : Low level X : Immaterial Z : High impedance T/R L H X B data to A bus A data to B bus Z Operation Pin Arrangement T/R A0 A1 1 2 3 20 VCC 19 OE 18 B0 17 B1 16 B2 15 B3 14 B4 13 B5 12 B6 11 B7 A2 4 A3 A4 A5 A6 A7 5 6 7 8 9 GND 10 (Top view) 2 HD74LVCZ245A Absolute Maximum Ratings Item Supply voltage Input voltage Input / output voltage Symbol VCC VI VI/O Ratings -0.5 to 7.0 -0.5 to 7.0 -0.5 to 7.0 -0.5 to VCC+0.5 Input diode current Output diode current Output current VCC, GND current Storage temperature I IK I OK IO I CC or IGND Tstg -50 -50 50 100 -65 to 150 mA mA mA mA C Unit V V V Output "Z" or VCC : OFF Output "H" or "L" VI < 0 VO < 0 Conditions Note: The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Supply voltage Input voltage Input / output voltage Symbol VCC VI VI/O Ratings 2.7 to 5.5 0 to 5.5 0 to 5.5 0 to V CC Output current I OH -12 -24 I OL 12 24 Input rise / fall time Operating temperature Note: 1. Duty cycle 50% t r, t f Ta *1 *1 Unit V V V Conditions At operation Output "Z" or VCC : OFF Output "H" or "L" mA VCC = 2.7 V VCC = 3.0 to 5.5 V VCC = 2.7 V VCC = 3.0 to 5.5 V 0 to 6 -40 to +85 ns / V C 3 HD74LVCZ245A Logic Diagram T/R 1 19 2 18 OE A0 B0 To seven other channels 4 HD74LVCZ245A Electrical Characteristics (Ta = -40 to 85C) Item Input voltage Symbol VCC (V) VIH Min Typ -- Max -- -- 0.8 VCCx0.3 Unit Test Conditions V 2.7 to 3.6 2.0 4.5 to 5.5 VCCx0.7 -- VIL 2.7 to 3.6 -- 4.5 to 5.5 -- Output voltage VOH -- -- 2.7 to 5.5 VCC-0.2 -- 2.7 3.0 3.0 4.5 2.2 2.4 2.2 3.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3.4 8.5 -- -- -- -- -- 0.2 0.4 0.55 0.55 5 5 5 5 5 225 350 500 -- -- V I OH = -100 A I OH = -12 mA I OH = -24 mA I OL = 100 A I OL = 12 mA I OL = 24 mA A A VOL 2.7 to 5.5 -- 2.7 3.0 4.5 -- -- -- -- Input current I IN 0 to 5.5 VIN = 0 to 5.5 V VOUT = 0 to 5.5 V VOUT = 0.5 to 5.5 V, Output enable = don't care Off state output current I OZ I OZPU I OZPD Output leak current Quiescent supply current I CC Input capacitance Input / output capacitance Note: CIN CI/O I OFF I CC 2.7 to 5.5 -- 0 to 1.5 1.5 to 0 0 -- -- -- A A VIN or VO = 5.5 V VIN = 3.6 to 5.5 V *1 , I O = 0 VIN = VCC or GND VIN = one input at (VCC-0.6) V, other inputs at V CC or GND 2.7 to 3.6 -- 2.7 to 5.5 -- 2.7 to 3.6 -- 3.3 3.3 -- -- pF pF VIN = VCC or GND VOUT = VCC or GND 1. This applies in the disabled state only. 5 HD74LVCZ245A Switching Characteristics (Ta = -40 to 85C) Item Propagation delay time Symbol VCC (V) t PLH t PHL 2.7 Min -- Typ -- -- -- -- -- -- -- -- -- -- -- -- Max 7.3 6.3 4.8 9.5 8.5 7.0 8.5 7.5 6.5 -- 1.0 1.0 ns ns OE A or B ns OE A or B Unit ns FROM (Input) A or B TO (Output) B or A 3.30.3 1.5 5.00.5 -- Output enable time t ZH t ZL 2.7 -- 3.30.3 1.5 5.00.5 -- Output disable time t HZ t LZ *1 2.7 -- 3.30.3 1.7 5.00.5 -- Between output pin skew t OSLH t OSHL 2.7 -- 3.30.3 -- 5.00.5 -- Note : 1. This parameter is characterized but not tested. t OSLH = |tPLHm-t PLHn |, tOSHL = |tPHLm-t PHLn | Test Circuit VCC VCC OE See Function Table Input Pulse generator Zout = 50 Output A0 B0 CL = 50 pF T/R S1 500 450 50 Scope S2 *1 OPEN See under table GND Symbol t PLH / t PHL t ZH/ t HZ t ZL / t LZ Note: 1. C L includes probe and jig capacitance. S2 Vcc=2.7V, 3.30.3V Vcc=5.00.5V OPEN GND 6V OPEN GND 2xVCC 6 HD74LVCZ245A * Waveforms - 1 tr 90 % Input 10 % t PLH Vref 90 % Vref 10 % t PHL tf VIH GND VOH In phase output Vref Vref VOL * Waveforms - 2 tf 90 % Vref 10 % t ZL 10 % t LZ tr 90 % Vref GND VOH1 Waveform - A Vref t ZH t HZ VOH - 0.3 V VOL + 0.3 V VOL VOH VOL1 TEST VIH Vref VOH1 VOL1 Vcc=2.7V 3.30.3V Vcc=5.00.5V VIH OE Waveform - B Vref 2.7 V 1.5 V 3V GND VCC 50%VCC VCC GND Notes: 1. Input waveform : PRR = 10 MHz, duty cycle 50%, t r = 2.5 ns, t f = 2.5 ns 2. Waveform - A shows input conditions such that the output is "L" level when enabled by the output control. 3. Waveform - B shows input conditions such that the output is "H" level when enabled by the output control. 7 HD74LVCZ245A Power up / down Characteristics 4.0 Ta = 25C Output enable = "L" 3.0 VOUT (V) 2.0 Disable area Enable area 1.0 0 0 1.0 2.0 VCC (V) 3.0 4.0 8 HD74LVCZ245A Package Dimensions Unit : mm 12.6 13 Max 20 11 1 10 5.5 0.80 Max 2.20 Max 0.22 0.05 0.20 0.04 0.20 7.80 + 0.30 - 1.15 1.27 0.42 0.08 0.40 0.06 0.10 0.10 0 - 8 0.70 0.20 0.15 0.12 M Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-20DA -- Conforms 0.31 g 9 HD74LVCZ245A 6.50 6.80 Max 20 11 4.40 1 10 0.65 1.0 6.40 0.20 0.65 Max 0.17 0.05 0.15 0.04 0.22 +0.08 -0.07 0.20 0.06 0.13 M 1.10 Max 0.10 0.07 +0.03 -0.04 0 - 8 0.50 0.10 Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) TTP-20DA -- -- 0.07 g 10 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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