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HD74ALVCH16334
16-bit Universal Bus Driver with 3-state Outputs
ADE-205-212 (Z) Preliminary 1st. Edition December 1997 Description
This HD74ALVCH16334 is a 16-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 (O E) 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 VCC through a pullup resistor; the minimum value of the resistor is determined by the current sinking capability of the driver. Active bus hold circuitry is provided to hold unused or floating 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 (@VCC = 3.0 V) * Bus hold on data inputs eliminates the need for external pullup / pulldown resistors
HD74ALVCH16334
Function Table
Inputs OE H L L L L L LE X L L H H H CLK X X X L or H A X L H L H X Z L H L H Y0
*1
Output Y
H : High level L : Low level X : Immaterial Z : High impedance : Low to high transition Note: 1. Output level before the indicated steady state input conditions were established.
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HD74ALVCH16334
Pin Arrangement
OE 1 Y1 2 Y2 3 GND 4 Y3 5 Y4 6 VCC 7 Y5 8 Y6 9 GND 10 Y7 11 Y8 12 Y9 13 Y10 14 GND 15 Y11 16 Y12 17 VCC 18 Y13 19 Y14 20 GND 21 Y15 22 Y16 23 NC 24
48 CLK 47 A1 46 A2 45 GND 44 A3 43 A4 42 VCC 41 A5 40 A6 39 GND 38 A7 37 A8 36 A9 35 A10 34 GND 33 A11 32 A12 31 VCC 30 A13 29 A14 28 GND 27 A15 26 A16 25 LE
(Top view)
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HD74ALVCH16334
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 0.85 -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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HD74ALVCH16334
Logic Diagram
OE CLK LE A1
1 48 25 47
1D C1 CLK
2
Y1
To fifteen other channels
5
HD74ALVCH16334
Electrical Characteristics (Ta = -40 to 85C)
Item Input voltage Symbol VCC (V) 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 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 I IN I IN (hold) 3.6 2.3 2.3 3.0 3.0 3.6 Off state output current I OZ I CC Note: 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 -- -- -- -- -- -- 45 -45 75 -75 -- -- -- -- 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 *1 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
Quiescent supply current I CC
1. This is the bus hold maximum dynamic current required to switch the input from one state to another.
6
HD74ALVCH16334
Switching Characteristics (Ta = -40 to 85C)
Item Maximum clock frequency Symbol VCC (V) f max Min Typ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5.5 6.0 8.0 Max -- -- -- 3.7 3.6 3.3 4.8 4.4 4.4 4.4 4.1 4.1 5.4 4.6 4.6 4.1 4.4 4.4 -- -- -- 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 1.1 2.50.2 1.0 2.7 --
3.30.3 1.3 2.50.2 1.0 2.7 --
3.30.3 1.0 Output enable time t ZH t ZL 2.50.2 1.0 2.7 --
3.30.3 1.1 Output disable time t HZ t LZ 2.50.2 1.0 2.7 --
3.30.3 1.7 Input capacitance CIN 3.3 3.3 Output capacitance CO 3.3 -- -- --
7
HD74ALVCH16334
Switching Characteristics (Ta = -40 to 85C) (cont)
Item Setup time Symbol VCC (V) t su 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 0.8 0.9 1.2 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
8
HD74ALVCH16334
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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HD74ALVCH16334
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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HD74ALVCH16334
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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HD74ALVCH16334
Package Dimensions
Unit : mm
12.50 -0.1 48
+0.3
25 6.10 +0.3 -0.1
1 0.20 +0.1 -0.05
0.50 0.08 M 0.65 Max
24 0.15 0.05
8.10 0.3 10 Max 0.50 0.1 Hitachi code EIAJ code JEDEC code TTP-48DC -- --
0.10
12
1.20 max
0.05 Min
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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