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HD74LS244
Octal Buffers / Line Drivers / Line Receivers (non inverted three-state outputs)
REJ03D0463-0200 Rev.2.00 Feb.18.2005
Features
* Ordering Information
Part Name HD74LS244P HD74LS244FPEL HD74LS244RPEL Package Type DILP-20 pin SOP-20 pin (JEITA) SOP-20 pin (JEDEC) Package Code (Previous Code) PRDP0020AC-B (DP-20NEV) PRSP0020DD-B (FP-20DAV) PRSP0020DC-A (FP-20DBV) Package Abbreviation P FP RP Taping Abbreviation (Quantity) -- EL (2,000 pcs/reel) EL (1,000 pcs/reel)
Note: Please consult the sales office for the above package availability.
Pin Arrangement
1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1
(Top view)
Rev.2.00, Feb.18.2005, page 1 of 5
HD74LS244
Function Table
Inputs G H L L A X H L Output Y Z H L
Note: H; high level, L; low level, X; irrelevant, Z; off (high-impedance) state of a 3-state output
Block Diagram (1/2)
A1 A2 A3 A4 G Y1 Y2 Y3 Y4
Absolute Maximum Ratings
Item Supply voltage Input voltage Power dissipation Storage temperature Symbol VCC VIN PT Tstg Ratings 7 7 400 -65 to +150 Unit V V mW C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Item Supply voltage Output current Operating temperature Symbol VCC IOH IOL Topr Min 4.75 -- -- -20 Typ 5.00 -- -- 25 Max 5.25 -15 24 75 Unit V mA mA C
Rev.2.00, Feb.18.2005, page 2 of 5
HD74LS244
Electrical Characteristics
(Ta = -20 to +75 C)
Item Input voltage Hysteresis Symbol VIH VIL VT+ - VT- VOH Output voltage VOL Off-state output current IOZH IOZL IIH IIL II Short-circuit output current Outputs "H" Supply current** Outputs "L" ICC IOS min. 2.0 -- 0.2 2.4 2.0 -- -- -- -- -- -- -- -40 -- -- typ.* -- -- 0.4 -- -- -- -- -- -- -- -- -- -- 13 27 max. -- 0.8 -- -- -- 0.4 0.5 20 -20 20 -0.2 0.1 -225 23 46 54 -1.5 V VCC = 4.75 V, IIN = -18 mA mA VCC = 5.25 V Unit V V V V V A A mA mA mA Condition
VCC = 4.75 V VIL = 0.8 V, IOH = - 3 mA VCC = 4.75 V, VIH = 2 V VIL = 0.5 V, IOH = - 15 mA IOL = 12 mA VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V IOL = 24 mA VO = 2.7 V VCC = 5.25 V, VIH = 2 V, VIL = 0.8 V VO = 0.4 V VCC = 5.25 V, VI = 2.7 V VCC = 5.25 V, VI = 0.4 V VCC = 5.25 V, VI = 7 V VCC = 5.25 V
Input current
All outputs -- 32 disabled Input clamp voltage VIK -- -- Notes: * VCC = 5 V, Ta = 25C ** ICC is measured with all outputs open.
Switching Characteristics
(VCC = 5 V, Ta = 25C)
Item Propagation delay time Output enable time Output disable time Symbol tPLH tPHL tZL tZH tLZ tHZ min. -- -- -- -- -- -- typ. 12 12 20 15 15 10 max. 18 18 30 23 25 18 Unit ns ns ns ns ns CL = 45 pF, RL = 667 Condition
CL = 5 pF, RL = 667
Note: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D00050100)".
Rev.2.00, Feb.18.2005, page 3 of 5
HD74LS244
Package Dimensions
JEITA Package Code P-DIP20-6.3x24.5-2.54 RENESAS Code PRDP0020AC-B Previous Code DP-20NEV MASS[Typ.] 1.26g
D
20
11
1 0.89 b3
10
Z
E
Reference Symbol
Dimension in Millimeters Min Nom 7.62 24.50 6.30 25.40 7.00 5.08 0.51 0.40 0.48 1.30 0.19 0 2.29 2.54 0.25 0.31 15 2.79 1.27 2.54 0.56 Max
A
A1
e D E
L
1
A A1 b
p 3
e
bp
e1
c
b c
e Z
( Ni/Pd/Au plating )
L
JEITA Package Code P-SOP20-5.5x12.6-1.27
RENESAS Code PRSP0020DD-B
Previous Code FP-20DAV
MASS[Typ.] 0.31g
*1
D 11
F
NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET.
20
bp
E
HE
Index mark
Reference Symbol
*2
c
Dimension in Millimeters Min Nom 12.60 5.50 Max 13.0
Terminal cross section ( Ni/Pd/Au plating )
1 Z e
*3
D E A2 A1 0.00
10 bp x M L1
0.10
0.20 2.20
A bp b1 c c
1
0.34
0.40
0.46
0.15
0.20
0.25
A
HE
0 7.50 7.80 1.27
8 8.00
y
e x y
A1
L
0.12 0.15 0.80 0.50
1
Detail F
Z L L 0.70 1.15
0.90
Rev.2.00, Feb.18.2005, page 4 of 5
HD74LS244
JEITA Package Code P-SOP20-7.5x12.8-1.27 RENESAS Code PRSP0020DC-A Previous Code FP-20DBV MASS[Typ.] 0.52g
*1
D
F 11 NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" @ DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT @ INCLUDE TRIM OFFSET.
20
bp
*2
HE
E
Index mark
Reference Symbol
c
Dimension in Millimeters Min Nom 12.80 7.50 Max 13.2
Terminal cross section ( Ni/Pd/Au plating )
1 Z e
*3
D E A2
10 bp x M L1
A1 A bp b1 c c
1
0.10
0.20
0.30 2.65
0.34
0.40
0.46
0.20
0.25
0.30
A
HE
0 10.00 10.40 1.27
8 10.65
A1
y L
e x y Z
0.12 0.15 0.935 0.40
1
Detail F
L L
0.70 1.45
1.27
Rev.2.00, Feb.18.2005, page 5 of 5
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Refer to "http://www.renesas.com/en/network" for the latest and detailed information. Renesas Technology America, Inc. 450 Holger Way, San Jose, CA 95134-1368, U.S.A Tel: <1> (408) 382-7500, Fax: <1> (408) 382-7501 Renesas Technology Europe Limited Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K. Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900 Renesas Technology Hong Kong Ltd. 7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong Kong Tel: <852> 2265-6688, Fax: <852> 2730-6071 Renesas Technology Taiwan Co., Ltd. 10th Floor, No.99, Fushing North Road, Taipei, Taiwan Tel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999 Renesas Technology (Shanghai) Co., Ltd. Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, China Tel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952 Renesas Technology Singapore Pte. Ltd. 1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632 Tel: <65> 6213-0200, Fax: <65> 6278-8001
http://www.renesas.com
(c) 2005. Renesas Technology Corp., All rights reserved. Printed in Japan.
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