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HD74LVCR2245A
Octal Bidirectional Transceivers with 3-state Outputs
ADE-205-235A (Z) Preliminary 2nd. Edition January 1999 Description
The HD74LVCR2245A 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. All outputs, which are designed to sink up to 12 mA, include equivalent 26 resistors to reduce overshoot and undreshoot. When VCC 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 = 1.65 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 output current 12 mA (@V CC = 3.0 to 5.5 V) * All outputs have equivalent 26 series resistors, so no external resistors are required
HD74LVCR2245A
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
HD74LVCR2245A
Absolute Maximum Ratings
Item Supply voltage Input voltage Output voltage Symbol VCC VI VO 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 Symbol VCC Ratings 1.65 to 5.5 1.5 to 5.5 Input voltage Output voltage VI VO 0 to 5.5 0 to 5.5 0 to V CC Output current I OH -2 -4 -8 -12 I OL 2 4 8 12 Input rise / fall time Operating temperature t r, t f Ta 0 to 6 -40 to +85 ns / V C mA V V Output "Z" or VCC : OFF Output "H" or "L" VCC = 1.65 V VCC = 2.3 V VCC = 2.7 V VCC = 3.0 to 5.5 V VCC = 1.65 V VCC = 2.3 V VCC = 2.7 V VCC = 3.0 to 5.5 V Unit V Conditions At operation Data retention only
3
HD74LVCR2245A
Logic Diagram
T/R
1 19 2 18
OE
A0
B0
To seven other channels
4
HD74LVCR2245A
Electrical Characteristics (Ta = -40 to 85C)
Item Input voltage Symbol VCC (V) VIH Min Typ Max -- -- -- --
VCCx0.35
Unit Test Conditions V
1.65 to 1.95 VCCx0.65 --
2.3 to 2.7 2.7 to 3.6 4.5 to 5.5 VIL
1.7 2.0 VCCx0.7
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
1.65 to 1.95 --
2.3 to 2.7 2.7 to 3.6 4.5 to 5.5 Output voltage VOH
-- -- --
0.7 0.8 VCCx0.3 -- -- -- -- -- -- -- -- 0.2 0.45 0.7 0.4 0.55 0.6 0.8 0.8 5 5 5 10 10 500 pF pF A A A A VIN = 0 to 5.5 V VOUT = 0 to 5.5 V 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 VIN = VCC or GND VOUT = VCC or GND I OL = 6 mA I OL = 8 mA I OL = 12 mA I OL = 100 A I OL = 2 mA I OL = 4 mA I OH = -6 mA I OH = -8 mA I OH = -12 mA V I OH = -100 A I OH = -2 mA I OH = -4 mA
1.65 to 5.5 VCC-0.2 1.65 2.3 2.7 3.0 2.7 3.0 4.5 1.2 1.7 2.2 2.4 2.0 2.0 3.6
VOL
1.65 to 5.5 -- 1.65 2.3 2.7 3.0 2.7 3.0 4.5 -- -- -- -- -- -- -- --
Input current
I IN
0 to 5.5
Off state output current I OZ Output leak current Quiescent supply current I CC Input capacitance Output capacitance Note: CIN CO I OFF I CC
1.65 to 5.5 -- 0 --
1.65 to 3.6 -- 1.65 to 5.5 -- 2.7 to 3.6 3.3 3.3 -- -- --
TBD -- TBD --
1. This applies in the disabled state only.
5
HD74LVCR2245A
Switching Characteristics (Ta = -40 to 85C)
Item Propagation delay time Symbol t PLH t PHL VCC (V) Min Typ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max 15.0 9.0 7.3 6.3 4.8 18.0 11.0 9.5 8.2 6.8 16.0 10.0 8.5 7.8 6.6 2.0 2.0 1.5 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
1.80.15 -- 2.50.2 2.7 3.30.3 5.00.5 -- -- 1.5 --
Output enable time
t ZH t ZL
1.80.15 -- 2.50.2 2.7 3.30.3 5.00.5 -- -- 1.5 --
Output disable time
t HZ t LZ
1.80.15 -- 2.50.2 2.7 3.30.3 5.00.5 -- -- 1.7 --
Between output pin skew
*1
t OSLH t OSHL
1.80.15 -- 2.50.2 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 |
6
HD74LVCR2245A
Test Circuit
(V CC = 1.80.15 V, VCC = 2.50.2 V)
VCC VCC
OE See Function Table Input Pulse generator Zout = 50 Output A0 B0 CL = 30 pF T/R VCC (V) 1.80.15 2.50.2 R2
50 Scope
S1 R1 S2 OPEN 2xVCC GND
R1 1 k 500
R2 950 450
Symbol t PLH / t PHL t ZH / t HZ t ZL / t LZ
S2 OPEN GND 2xVCC
Note: 1. C L includes probe and jig capacitance.
7
HD74LVCR2245A
(V CC = 2.7 V, VCC = 3.30.3 V, VCC = 5.00.5 V)
VCC VCC
OE See Function Table Input Pulse generator Zout = 50 Output A0 B0 CL = 50 pF T/R S1 500 S2 450
50 Scope
OPEN
*1
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
8
HD74LVCR2245A
(V CC = 1.80.15 V, VCC = 2.50.2 V) * Waveforms - 1
tr 90 % 50% VCC t PLH 90 % 50% VCC
tf VCC 10 % t PHL GND
Input 10 %
VOH In phase output 50% VCC 50% VCC VOL
* Waveforms - 2
tf 90 % OE 50% VCC 10 % t ZL 10 % t LZ tr 90 % 50% VCC VCC GND VCC Waveform - A 50% VCC t ZH t HZ VOH - 0.15 V VOL + 0.15 V VOL VOH GND
Waveform - B
50% VCC
Notes: 1. Input waveform : PRR = 10 MHz, duty cycle 50%, t r = 2.0 ns, t f = 2.0 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.
9
HD74LVCR2245A
(V CC = 2.7 V, VCC = 3.30.3 V, VCC = 5.00.5 V) * Waveforms - 1
tr 90 % 90 % Vref
tf VIH 10 % t PLH t PHL GND
Input 10 %
Vref
VOH In phase output Vref Vref VOL
* Waveforms - 2
tf 90 % Vref 10 % t ZL 10 % t LZ tr 90 % Vref VIH 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
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.
10
HD74LVCR2245A
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
11
HD74LVCR2245A
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
12
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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