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HD74LV244A
Octal Buffers / Drivers with 3-state Outputs
ADE-205-246 (Z) 1st Edition March 1999 Description
The HD74LV244A has eight line drivers with three-state outputs in a 20-pin package. Four non-inverters are included in one circuit. Each circuit can be independently controlled by the enable signal 1OE or 2OE, which enables outputs when receiving a low-level signal. Low-voltage operation is suitable for batterypowered products (e.g., notebook computers), and the low-power consumption extends the battery life.
Features
* * * * * * VCC = 2.0 V to 5.5 V operation All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VO (Max.) = 5.5 V (@VCC = 0 V) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25C) Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25C) Output current 8 mA (@VCC = 3.0 V to 3.6 V), 16 mA (@VCC = 4.5 V to 5.5 V)
Function Table
Inputs OE L L H Note: H: L: X: Z: High level Low level Immaterial High impedance A H L X Output Y H L Z
HD74LV244A
Pin Arrangement
1OE 1 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 2 3 4 5 6 7 8 9
20 VCC 19 2OE 18 1Y1 17 2A4 16 1Y2 15 2A3 14 1Y3 13 2A2 12 1Y4 11 2A1
GND 10
(Top view)
2
HD74LV244A
Absolute Maximum Ratings
Item Supply voltage range Input voltage range*
1 1, 2
Symbol VCC VI VO
Ratings -0.5 to 7.0 -0.5 to 7.0 -0.5 to VCC + 0.5 -0.5 to 7.0
Unit V V V
Conditions
Output voltage range* *
Output: H or L VCC: OFF or Output: Z
Input clamp current Output clamp current Continuous output current Continuous current through VCC or GND Maximum power dissipation at Ta = 25C (in still air)*3
I IK I OK IO I CC or IGND PT
-20 50 35 70 835 757
mA mA mA mA mW
VI < 0 VO < 0 or VO > VCC VO = 0 to VCC
SOP TSSOP
Storage temperature
Tstg
-65 to 150
C
Notes: The absolute maximum ratings are values which must not be individually be exceeded, and furthermore, no two of which may be realized at the same time. 1. The input and output voltage ratings may be exceeded even if the input and output clamp-current ratings are observed. 2. This value is limited to 5.5 V maximum. 3. The data above are measured by V BE method mounting on glass epoxy board (40 x 40 x 1.6 mm) with 10% of wiring density.
3
HD74LV244A
Recommended Operating Conditions
Item Supply voltage range Input voltage range Output voltage range Symbol VCC VI VO Min 2.0 0 0 0 Output current I OH -- -- -- -- I OL -- -- -- -- Input transition rise or fall rate t /v 0 0 0 Operating free-air temperature Ta -40 Max 5.5 5.5 VCC 5.5 -50 -2 -8 -16 50 2 8 16 200 100 20 85 C ns/V A mA A mA Unit V V V H or L High impedance state VCC = 2.0 V VCC = 2.3 to 2.7 V VCC = 3.0 to 3.6 V VCC = 4.5 to 5.5 V VCC = 2.0 V VCC = 2.3 to 2.7 V VCC = 3.0 to 3.6 V VCC = 4.5 to 5.5 V VCC = 2.3 to 2.7 V VCC = 3.0 to 3.6 V VCC = 4.5 to 5.5 V Conditions
Note: Unused or floating inputs must be held high or low.
4
HD74LV244A
Logic Diagram
1OE 1A1
1
2OE
18
19
2
1Y1
2A1
11
9
2Y1
1A2
4
16
1Y2
2A2
13
7
2Y2
1A3
6
14
1Y3
2A3
15
5
2Y3
1A4
8
12
1Y4
2A4
17
3
2Y4
5
HD74LV244A
DC Electrical Characteristics
* Ta = -40 to 85C
Item Input voltage Symbol VIH VCC (V)* 2.0 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 VIL 2.0 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 Output voltage VOH Min to Max 2.3 3.0 4.5 VOL Min to Max 2.3 3.0 4.5 Input current Off-state output current Quiescent supply current Output leakage current Input capacitance IIN IOZ ICC IOFF CIN 0 to 5.5 5.5 5.5 0 3.3 Min 1.5 VCC x 0.7 VCC x 0.7 VCC x 0.7 -- -- -- -- VCC - 0.1 2.0 2.48 3.8 -- -- -- -- -- -- -- -- -- Typ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2.3 Max -- -- -- -- 0.5 VCC x 0.3 VCC x 0.3 VCC x 0.3 -- -- -- -- 0.1 0.4 0.44 0.55 1 5 20 5 -- A A A A pF V IOH = -50 A IOH = -2 mA IOH = -8 mA IOH = -16 mA IOL = 50 A IOL = 2 mA IOL = 8 mA IOL = 16 mA VIN = 5.5 V or GND VO = VCC or GND VIN = VCC or GND, IO = 0 VO = 5.5 V VI = VCC or GND Unit V Test Conditions
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating conditions.
6
HD74LV244A
Switching Characteristics
* VCC = 2.5 0.2 V
Ta = 25C Item Propagation delay time Symbol tPLH tPHL Min -- -- Enable time tZH tZL -- Typ 7.5 9.5 8.9 Max 12.5 15.3 14.6 Ta = -40 to 85C Min 1.0 1.0 1.0 Max 15.0 18.0 17.0 ns Unit ns Test Conditions CL = 15 pF CL = 50 pF CL = 15 pF OE Y FROM (Input) TO (Output) Y
A
-- Disable time tHZ tLZ --
10.8 9.1
17.8 14.1
1.0 1.0
21.0 16.0 ns
CL = 50 pF CL = 15 pF OE Y
--
13.4
19.2
1.0
21.0
CL = 50 pF
* VCC = 3.3 0.3 V
Ta = 25C Item Propagation delay time Symbol tPLH tPHL Min -- -- Enable time tZH tZL -- Typ 5.4 6.8 6.3 Max 8.4 11.9 10.6 Ta = -40 to 85C Min 1.0 1.0 1.0 Max 10.0 13.5 12.5 ns Unit ns Test Conditions CL = 15 pF CL = 50 pF CL = 15 pF OE Y FROM (Input) TO (Output) Y
A
-- Disable time tHZ tLZ --
7.8 7.6
14.1 11.7
1.0 1.0
16.0 13.0 ns
CL = 50 pF CL = 15 pF OE Y
--
11.0
16.0
1.0
18.0
CL = 50 pF
7
HD74LV244A
Switching Characteristics (cont)
* VCC = 5.0 0.5 V
Ta = 25C Item Propagation delay time Symbol tPLH tPHL Min -- -- Enable time tZH tZL -- Typ 3.9 4.9 4.5 Max 5.5 7.5 7.3 Ta = -40 to 85C Min 1.0 1.0 1.0 Max 6.5 8.5 8.5 ns Unit ns Test Conditions CL = 15 pF CL = 50 pF CL = 15 pF OE Y FROM (Input) TO (Output) Y
A
-- Disable time tHZ tLZ --
5.6 6.5
9.3 12.2
1.0 1.0
10.5 13.5 ns
CL = 50 pF CL = 15 pF OE Y
--
8.8
14.2
1.0
15.5
CL = 50 pF
8
HD74LV244A
Output-skew characteristics
* CL = 50 pF
Ta = 25C Item Output skew Symbol t sk (O) VCC (V) 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 Min -- -- -- Max 2.0 1.5 1.0 Ta = -40 to 85C Min -- -- -- Max 2.0 1.5 1.0 Unit ns
Note: Skew between any outputs of the same package switching in the same direction. This parameter is warranted but not production tested.
Operating Characteristics
* CL = 50 pF
Ta = 25C Item Power dissipation capacitance Symbol CPD VCC (V) 3.3 5.0 Min -- -- Typ 14.0 16.0 Max -- -- Unit pF Test Conditions f = 10 MHz
Noise Characteristics
* CL = 50 pF
Ta = 25C Item Quiet output, maximum dynamic VOL Quiet output, minimum dynamic VOL Quiet output, minimum dynamic VOH High-level dynamic input voltage Low-level dynamic inout voltage Symbol VOL (P) VCC (V) 3.3 Min -- Typ 0.6 Max 0.8 Unit V Test Conditions
VOL (V)
3.3
--
-0.5
-0.8
VOH (V)
3.3
--
2.9
--
VIH (D)
3.3
2.31
--
--
V
VIL (D)
3.3
--
--
0.99
9
HD74LV244A
Test Circuit
VCC VCC
1OE, 2OE See Function Table Input Pulse generator Zout = 50 1Y1 to 2Y4 1A1 to 2A4
Output 1 k S1 OPEN GND CL = 15 or 50 pF VCC
TEST t PLH /tPHL t ZH/tHZ t ZL /tLZ
S1 OPEN GND VCC
Note: CL includes the probe and jig capacitance.
10
HD74LV244A
* Waveform - 1
tr 90% 50% VCC t PLH 90% 50% VCC tf VCC 10 % t PHL 0V
Input A 10%
VOH Output Y 50% VCC 50% VCC VOL
* Waveform - 2
90% Input OE
tf
tr 90% 50% VCC 10 % t LZ VCC 0V VCC
50% VCC 10% t ZL
Waveform - A t ZH Waveform - B
50% VCC t HZ
VOL + 0.3 V
VOL VOH 0V
50% VCC
VOH - 0.3 V
Notes: 1. Input waveform: PRR 1 MHz, Zo = 50 , tr 3 ns, tf 3 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..
11
HD74LV244A
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
0 - 8
0.70 0.20
1.27 *0.42 0.08 0.40 0.06
0.12 M
*Dimension including the plating thickness Base material dimension
0.10 0.10
0.15
Hitachi Code JEDEC EIAJ Weight (reference value)
FP-20DA -- Conforms 0.31 g
12
HD74LV244A
Unit: mm
12.8 13.2 Max 20 11 7.50 1 0.935 Max 10
2.65 Max
*0.27 0.05 0.25 0.04
0.25 10.40 + 0.40 -
1.45
0.20 0.10
0 - 8
0.57 0.70 + 0.30 -
1.27
*0.42 0.08 0.40 0.06
0.15 0.12 M
Hitachi Code JEDEC EIAJ Weight (reference value) FP-20DB Conforms -- 0.52 g
*Dimension including the plating thickness Base material dimension
13
HD74LV244A
Unit: mm
6.50 6.80 Max 20 11 4.40 1 10 0.65 *0.22 +0.08 -0.07 0.20 0.06 0.13 M 0.65 Max *0.17 0.05 0.15 0.04 1.10 Max 0.07 +0.03 -0.04 0 - 8 0.50 0.10 1.0 6.40 0.20 0.10
*Dimension including the plating thickness Base material dimension
Hitachi Code JEDEC EIAJ Weight (reference value)
TTP-20DA -- -- 0.07 g
14
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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