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HD74ALVCH16825
18-bit Buffers / Drivers with 3-state Outputs
ADE-205-172A (Z) 2nd. Edition December 1999 Description
The HD74ALVCH16825 improves the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device can be used as two 9-bit buffers or one 18bit buffer. It provides true data. The 3-state control gate is a 2-input AND gate with active low inputs so that if either output enable (OE1 or OE2) input is high, all nine affected outputs are in the high impedance state. Active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
Features
* VCC = 2.3 V to 3.6 V * 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 output current 24 mA (@V CC = 3.0 V) * Bus hold on data inputs eliminates the need for external pullup / pulldown resistors
Function Table
Inputs OE1 L L H X H : High level L : Low level X : Immaterial Z : High impedance OE2 L L X H A L H X X L H Z Z Output Y
HD74ALVCH16825
Pin Arrangement
1OE1 1 1Y1 2 1Y2 3 GND 4 1Y3 5 1Y4 6 VCC 7 1Y5 8 1Y6 9 1Y7 10 GND 11 1Y8 12 1Y9 13 GND 14 GND 15 2Y1 16 2Y2 17 GND 18 2Y3 19 2Y4 20 2Y5 21 VCC 22 2Y6 23 2Y7 24 GND 25 2Y8 26 2Y9 27 2OE1 28
56 1OE2 55 1A1 54 1A2 53 GND 52 1A3 51 1A4 50 VCC 49 1A5 48 1A6 47 1A7 46 GND 45 1A8 44 1A9 43 GND 42 GND 41 2A1 40 2A2 39 GND 38 2A3 37 2A4 36 2A5 35 VCC 34 2A6 33 2A7 32 GND 31 2A8 30 2A9 29 2OE2
(Top view)
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HD74ALVCH16825
Absolute Maximum Ratings
Item Supply voltage Input voltage
*1 *1, 2
Symbol VCC VI VO I IK I OK IO
Ratings -0.5 to 4.6 -0.5 to 4.6 -0.5 to VCC +0.5 -50 50 50 100
Unit V V V mA mA mA
Conditions
Output voltage
Input clamp current Output clamp current Continuous output current
VI < 0 VO < 0 or VO > VCC VO = 0 to VCC
Maximum power dissipation at Ta = 55C (in still air) *3 Storage temperature Notes:
PT Tstg
1 -65 to 150
W C
TSSOP
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. 1. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. 2. This value is limited to 4.6 V maximum. 3. The maximum package power dissipation is calculated using a junction temperature of 150C and a board trace length of 750 mils.
Recommended Operating Conditions
Item Supply voltage Input voltage Output voltage High level output current Symbol VCC VI VO I OH Min 2.3 0 0 -- -- -- Low level output current I OL -- -- -- Input transition rise or fall rate Operating temperature t / v Ta 0 -40 Max 3.6 VCC VCC -12 -12 -24 12 12 24 10 85 ns / V C mA Unit V V V mA VCC = 2.3 V VCC = 2.7 V VCC = 3.0 V VCC = 2.3 V VCC = 2.7 V VCC = 3.0 V Conditions
Note: Unused control inputs must be held high or low to prevent them from floating.
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HD74ALVCH16825
Logic Diagram
1OE1 1 1OE2 56 1A1
55 2
1Y1
To eight other channels
2OE1 28 2OE2 29 2A1
41 16
2Y1
To eight other channels
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HD74ALVCH16825
Electrical Characteristics (Ta = -40 to 85C)
Item Input voltage Symbol VCC (V) *1 VIH 2.3 to 2.7 2.7 to 3.6 VIL 2.3 to 2.7 2.7 to 3.6 Output voltage VOH Min 1.7 2.0 -- -- Max -- -- 0.7 0.8 -- -- -- -- -- -- 0.2 0.4 0.7 0.4 0.55 5 -- -- -- -- 500 10 40 750 A A A A V I OH = -100 A I OH = -6 mA, VIH = 1.7 V I OH = -12 mA, VIH = 1.7 V I OH = -12 mA, VIH = 2.0 V I OH = -12 mA, VIH = 2.0 V I OH = -24 mA, VIH = 2.0 V I OL = 100 A I OL = 6 mA, VIL = 0.7 V I OL = 12 mA, VIL = 0.7 V I OL = 12 mA, VIL = 0.8 V I OL = 24 mA, VIL = 0.8 V VIN = VCC or GND VIN = 0.7 V VIN = 1.7 V VIN = 0.8 V VIN = 2.0 V VIN = 0 to 3.6 V VOUT = VCC or GND VIN = VCC or GND VIN = one input at (VCC-0.6) V, other inputs at V CC or GND Unit V Test Conditions
Min to Max VCC-0.2 2.3 2.3 2.7 3.0 3.0 2.0 1.7 2.2 2.4 2.0
VOL
Min to Max -- 2.3 2.3 2.7 3.0 -- -- -- -- -- 45 -45 75 -75 -- -- -- --
Input current
I IN I IN (hold)
3.6 2.3 2.3 3.0 3.0 3.6
Off state output current
*2
I OZ I CC
3.6 3.6 3.0 to 3.6
Quiescent supply current I CC
Notes: 1. For conditions shown as Min or Max, use the appropriate values under recommended operating conditions. 2. For I/O ports, the parameter I OZ includes the input leakage current.
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HD74ALVCH16825
Switching Characteristics (Ta = -40 to 85C)
Item Propagation delay time Symbol VCC (V) t PLH t PHL 2.50.2 2.7 3.30.3 Output enable time t ZH t ZL 2.50.2 2.7 3.30.3 Output disable time t HZ t LZ 2.50.2 2.7 3.30.3 Input capacitance CIN 3.3 3.3 Output capacitance CO 3.3 Min 1.0 -- 1.0 1.0 -- 1.0 1.9 -- 1.3 -- -- -- Typ -- -- -- -- -- -- -- -- -- 3.5 6.0 7.5 Max 4.1 3.9 3.4 6.0 5.7 4.7 5.6 4.9 4.5 -- -- -- pF pF Control inputs Data inputs Outputs ns OE Y ns OE Y Unit ns FROM (Input) A TO (Output) Y
* Test Circuit
See under table 500 S1 OPEN
*1
GND 500
C L = 50 pF
Load Circuit for Outputs Symbol t PLH / t PHL t su / t h / t w t ZH/ t HZ t ZL / t LZ
Vcc=2.50.2V Vcc=2.7V, 3.30.3V
OPEN GND 4.6 V
OPEN GND 6.0 V
Note: 1. C L includes probe and jig capacitance.
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HD74ALVCH16825
* Waveforms - 1
tr 90 % Input 10 % t PLH Vref 90 % Vref 10 % t PHL tf VIH GND
VOH Output Vref Vref VOL
* Waveforms - 2
90 % Vref
tf
tr 90 % Vref 10 % t ZL Vref t ZH t HZ Vref VOH - 0.3 V 10 % t LZ GND VOH1 VIH
Output Control
Waveform - A
VOL + 0.3 V
VOL VOH VOL1
Waveform - B
TEST VIH Vref VOH1 VOL1
Vcc=2.50.2V
Vcc=2.7V, 3.30.3V
2.3 V 1.2 V 2.3 V GND
2.7 V 1.5 V 3.0 V GND
Notes: 1. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, Zo = 50 , tr 2.5 ns, tf 2.5 ns. 2. Waveform - A is for an output with internal conditions such that the output is low except when disabled by the output control. 3. Waveform - B is for an output with internal conditions such that the output is high except when disabled by the output control. 4. The output are measured one at a time with one transition per measurement.
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HD74ALVCH16825
Package Dimensions
Unit : mm
14.00 -0.1 56
+0.3
29 6.10 +0.3 -0.1
1 0.20 +0.1 -0.05
0.50 0.08 M
28
0.15 0.05
0.40 Max 1.20 max 0.05 Min
8.10 0.3 10 Max 0.50 0.1
0.10
Hitachi code EIAJ code JEDEC code
TTP-56D -- --
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HD74ALVCH16825
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/index.htm For further information write to:
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
Hitachi Semiconductor (America) Inc. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223
Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.
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