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HD74ALVC16836
20-bit Universal Bus Driver with 3-state Outputs
ADE-205-209 (Z) Preliminary 1st. Edition January 1998 Description
This 20-bit universal bus driver is designed for 2.3 V to 3.6 V VCC operation. Data flow from A to Y is controlled by the output enable (OE) input. The device operates in the transparent mode when the latch enable (LE) input is low. When LE is high, the A data is latched if the clock (CLK) input is held at a high or low logic level. If LE is high, the A data is stored in the latch flip flop on the low to high transition of CLK. When OE is high, the outputs are in the high impedance state. To ensure the high impedance state during power up or power down, OE should be tied to V CC through a pullup resistor; the minimum value of the resistor is determined by the current sinking capability of the driver.
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)
HD74ALVC16836
Function Table
Inputs OE H L L L L L L LE X L L H H H H CLK X X X H L A X L H L H X X Z L H L H Y0 Y0
*1 *2
Output Y
H : High level L : Low level X : Immaterial Z : High impedance : Low to high transition Notes: 1. Output level before the indicated steady state input conditions were established, provided that CLK is high before LE goes low. 2. Output level before the indicated steady state input conditions were established.
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HD74ALVC16836
Pin Arrangement
OE 1 Y1 2 Y2 3 GND 4 Y3 5 Y4 6 VCC 7 Y5 8 Y6 9 Y7 10 GND 11 Y8 12 Y9 13 Y10 14 Y11 15 Y12 16 Y13 17 GND 18 Y14 19 Y15 20 Y16 21 VCC 22 Y17 23 Y18 24 GND 25 Y19 26 Y20 27 NC 28
56 CLK 55 A1 54 A2 53 GND 52 A3 51 A4 50 VCC 49 A5 48 A6 47 A7 46 GND 45 A8 44 A9 43 A10 42 A11 41 A12 40 A13 39 GND 38 A14 37 A15 36 A16 35 VCC 34 A17 33 A18 32 GND 31 A19 30 A20 29 LE
(Top view)
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HD74ALVC16836
Absolute Maximum Ratings
Item Supply voltage Input voltage
*1 *1, 2
Symbol VCC VI VO I IK I OK IO I CC or IGND PT Tstg
Ratings -0.5 to 4.6 -0.5 to 4.6 -0.5 to VCC +0.5 -50 50 50 100 1 -65 to 150
Unit V V V mA mA mA mA W C
Conditions
Output voltage
Input clamp current Output clamp current Continuous output current VCC, GND current / pin Maximum power dissipation at Ta = 55C (in still air) *3 Storage temperature Notes:
VI < 0 VO < 0 or VO > VCC VO = 0 to VCC
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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HD74ALVC16836
Logic Diagram
OE CLK LE A1
1 56 29 55
1D C1 CLK
2
Y1
To nineteen other channels
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HD74ALVC16836
Electrical Characteristics (Ta = -40 to 85C)
Item Input voltage Symbol VIH VCC (V) 2.3 to 2.7 2.7 to 3.6 VIL 2.3 to 2.7 2.7 to 3.6 Output voltage VOH 2.3 to 3.6 2.3 2.3 2.7 3.0 3.0 VOL 2.3 to 3.6 2.3 2.3 2.7 3.0 Input current Off state output current I IN I OZ I CC 3.6 3.6 3.6 3.0 to 3.6 Min 1.7 2.0 -- -- VCC-0.2 2.0 1.7 2.2 2.4 2.0 -- -- -- -- -- -- -- -- -- Max -- -- 0.7 0.8 -- -- -- -- -- -- 0.2 0.4 0.7 0.4 0.55 5 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 VOUT = VCC or GND VIN = VCC or GND VIN = one input at (VCC-0.6) V, other inputs at V CC or GND Unit Test Conditions V
Quiescent supply current I CC
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HD74ALVC16836
Switching Characteristics (Ta = -40 to 85C)
Item Maximum clock frequency Symbol f max VCC (V) Min Typ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3.5 6.0 7.0 Max -- -- -- 4.2 4.2 3.6 5.0 4.9 4.2 5.5 5.2 4.5 5.5 5.6 4.6 4.5 4.3 3.9 -- -- -- pF pF Control inputs Data inputs Outputs ns OE Y ns OE Y CLK Y LE Y ns A Y Unit MHz FROM (Input) TO (Output)
2.50.2 150 2.7 150
3.30.3 150 Propagation delay time t PLH t PHL 2.50.2 1.0 2.7 --
3.30.3 1.0 2.50.2 1.3 2.7 --
3.30.3 1.3 2.50.2 1.4 2.7 --
3.30.3 1.4 Output enable time t ZH t ZL 2.50.2 1.4 2.7 --
3.30.3 1.1 Output disable time t HZ t LZ 2.50.2 1.0 2.7 --
3.30.3 1.3 Input capacitance CIN 3.3 3.3 Output capacitance CO 3.3 -- -- --
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HD74ALVC16836
Switching Characteristics (Ta = -40 to 85C) (cont)
Item Setup time Symbol t su VCC (V) 2.50.2 2.7 3.30.3 2.50.2 2.7 3.30.3 2.50.2 2.7 3.30.3 Hold time th 2.50.2 2.7 3.30.3 2.50.2 2.7 3.30.3 Pulse width tw 2.50.2 2.7 3.30.3 2.50.2 2.7 3.30.3 Min 1.4 1.7 1.5 1.2 1.6 1.3 1.4 1.5 1.2 0.9 0.9 0.9 1.1 1.1 1.1 3.3 3.3 3.3 3.3 3.3 3.3 Typ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- CLK "H" or "L" ns LE "L" Data after LE CLK "H" or "L" ns Data after CLK Data before LE CLK "L" Data before LE CLK "H" Unit ns FROM (Input) Data before CLK
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HD74ALVC16836
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 Note: 1.
Vcc=2.50.2V Vcc=2.7V, 3.30.3V
OPEN GND 2 x VCC
OPEN GND 6.0 V
CL includes probe and jig capacitance.
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HD74ALVC16836
Waveforms - 1
tr 90 % Input 10 % t PLH Vref 90 % Vref 10 % t PHL tf VIH GND
VOH Output Vref Vref VOL
Waveforms - 2
tr 90 % Timing Input 10 % tsu Vref th GND VIH Data Input Vref Vref GND tw VIH Input Vref Vref GND VIH
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HD74ALVC16836
Waveforms - 3
tf Output Control 90 % Vref 10 % t ZL Vref t ZH Waveform - B Vref t HZ Vref2 10 % t LZ tr 90 % Vref GND VOH1 Waveform - A Vref1 VOL VOH VOL1 TEST VIH Vref Vref1 Vref2 VOH1 VOL1 Notes: 1.
Vcc=2.50.2V Vcc=2.7V, 3.30.3V
VIH
VCC
2.7 V
1/2 VCC 1.5 V VOL +0.15 V VOL +0.3 V VOH-0.15 V VOH-0.3 V VCC GND 3.0 V GND
2. 3. 4.
All input pulses are supplied by generators having the following characteristics : PRR 10 MHz, Zo = 50 , t r 2.0 ns, tf 2.0 ns. (VCC = 2.50.2 V) PRR 10 MHz, Zo = 50 , t r 2.5 ns, tf 2.5 ns. (VCC = 2.7 V, 3.30.3 V) Waveform - A is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform - B is for an output with internal conditions such that the output is high except when disabled by the output control. The output are measured one at a time with one transition per measurement.
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HD74ALVC16836
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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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
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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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