HD74LS245RP-E [RENESAS]
LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, FP-20DB;
| 型号： | HD74LS245RP-E |
| 厂家： | 
RENESAS TECHNOLOGY CORP |
| 描述： | LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, FP-20DB 光电二极管 输出元件 逻辑集成电路 |
| 文件： | 总6页 (文件大小：89K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HD74LS245
Octal Bus Transceivers (with three-state outputs)
REJ03D0464–0300
Rev.3.00
Jul.15.2005
This octal bus transceiver is designed for synchronous two-way communication between data buses. The control
function implementation minimizes external timing requirements. The device allows data transmission from the A bus
to the B bus or from the B bus to the A bus depending upon the logic level at the direction control (DIR) input. The
enable input (G) can be used to disable the device so that the buses are effectively isolated.
Features
•
Ordering Information
Package Code
(Previous Code)
Package
Abbreviation
Taping Abbreviation
(Quantity)
Part Name
Package Type
PRDP0020AC-B
(DP-20NEV)
HD74LS245P
DILP-20 pin
P
—
PRSP0020DD-B
(FP-20DAV)
HD74LS245FPEL
HD74LS245RPEL
SOP-20 pin (JEITA)
SOP-20 pin (JEDEC)
FP
RP
EL (2,000 pcs/reel)
EL (1,000 pcs/reel)
PRSP0020DC-A
(FP-20DBV)
Note: Please consult the sales office for the above package availability.
Pin Arrangement
1
2
20
19
18
17
16
15
14
13
12
11
DIR
VCC
A1
A2
A3
A4
A5
A6
A7
A8
Enable G
3
B1
B2
B3
B4
B5
B6
B7
B8
4
5
6
7
8
9
10
GND
(Top view)
Rev.3.00, Jul.15.2005, page 1 of 5
HD74LS245
Function Table
Enable G
Direction Control DIR
Operation
B data to A bus
A data to B bus
Isolation
L
L
H
X
L
H
Note: H; high level, L; low level, X; irrelevant
Block Diagram
Enable G
Transceiver (1/8)
A
B
Direction
Control DIR
Absolute Maximum Ratings
Item
Symbol
VCC
Ratings
Unit
Supply voltage
7
7
V
V
DIR, G
VIN
Input voltage
A, B
VIN
5.5
V
Power dissipation
PT
400
mW
°C
°C
Storage temperature
Operating temperature
Tstg
Topr
–65 to +150
–20 to +75
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Item
Symbol
VCC
Min
4.75
—
Typ
5.00
—
Max
5.25
–15
24
Unit
Supply voltage
Output current
V
IOH
mA
mA
°C
IOL
—
—
Operating temperature
Topr
–20
25
75
Rev.3.00, Jul.15.2005, page 2 of 5
HD74LS245
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Input voltage
Hysteresis
Symbol
VIH
min.
2.0
—
typ.*
—
max.
—
Unit
V
Condition
VIL
VT+ – VT
—
0.8
—
–
0.2
2.4
2
0.4
—
V
VCC = 4.75 V
IOH = – 3 mA
IOH = – 15 mA
IOL = 12 mA
IOL = 24 mA
VO = 2.7 V
—
VCC = 4.75 V, VIH = 2 V,
VIL = 0.8 V
VOH
V
—
—
Output voltage
—
—
0.4
0.5
20
VCC = 4.75 V, VIH = 2 V,
VIL = 0.8 V
VOL
V
—
—
IOZH
IOZL
IIH
—
—
Off-state output current
Input
µA
VCC = 5.25 V, G = 2 V
—
—
–200
20
VO = 0.4 V
—
—
µA
VCC = 5.25 V, VI = 2.7 V
VCC = 5.25 V, VI = 0.4 V
VCC = 5.25 V, VI = 5.5 V
IIL
—
—
–0.2
0.1
0.1
mA
current
A or B
—
—
II
mA
mA
DIR or G
Short-circuit output
current
—
—
V
CC = 5.25 V, VI = 7 V
IOS
–40
—
–225
VCC = 5.25 V
ICCH
ICCL
ICCZ
VIK
—
—
—
—
48
62
64
—
70
90
Supply current**
mA
V
V
CC = 5.25 V
95
Input clamp voltage
–1.5
VCC = 4.75 V, IIN = –18 mA
Notes: * VCC = 5 V, Ta = 25°C
** With all outputs open, ICC is measured with transceivers enabled in one direction only, or with all transceivers
disabled.
Switching Characteristics
(VCC = 5 V, Ta = 25°C)
Item
Symbol
tPLH
tPHL
tZL
min.
—
typ.
8
max.
15
Unit
Condition
Propagation delay time
—
11
27
25
15
15
15
CL = 45 pF, RL = 667 Ω
—
40
Output enable time
Output disable time
ns
tZH
—
40
tLZ
—
25
CL = 5 pF, RL = 667 Ω
tHZ
—
25
Note: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-
0100)".
Rev.3.00, Jul.15.2005, page 3 of 5
HD74LS245
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
10
b 3
0.89
Z
Dimension in Millimeters
Reference
Symbol
Min
Nom
7.62
Max
e
1
D
24.50
6.30
25.40
7.00
5.08
E
A
A 1
0.51
0.40
b
0.48
1.30
0.25
0.56
p
b
c
θ
bp
3
e
c
0.19
0.31
e1
0
°
15°
e
Z
L
2.29
2.54
2.54
2.79
1.27
( Ni/Pd/Au plating )
JEITA Package Code
RENESAS Code
PRSP0020DD-B
Previous Code
FP-20DAV
MASS[Typ.]
0.31g
P-SOP20-5.5x12.6-1.27
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
*1
D
F
20
11
bp
Index mark
Dimension in Millimeters
Reference
Symbol
Min
Nom
12.60
5.50
Max
13.0
Terminal cross section
( Ni/Pd/Au plating )
D
E
A 2
A 1
A
1
10
x
0.00
0.34
0.15
0.10
0.40
0.20
0.20
2.20
0.46
*3
e
bp
Z
M
L1
b p
b 1
c
0.25
c
1
θ
0
°
8°
H E
e
7.50
7.80
1.27
8.00
y
x
0.12
0.15
0.80
0.90
L
y
Z
L
Detail F
0.50
0.70
1.15
L
1
Rev.3.00, Jul.15.2005, page 4 of 5
HD74LS245
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
NOTE)
20
11
1. DIMENSIONS"*1 (Nom)"AND"*2"
@ DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
@ INCLUDE TRIM OFFSET.
bp
Index mark
Dimension in Millimeters
Reference
Symbol
Min
Nom
12.80
7.50
Max
13.2
Terminal cross section
( Ni/Pd/Au plating )
D
E
A 2
A 1
A
1
10
x
0.10
0.34
0.20
0.20
0.40
0.25
0.30
2.65
0.46
*3
e
bp
Z
M
L1
b p
b 1
c
0.30
c
1
θ
H E
e
0
°
8°
10.00
10.40
1.27
10.65
x
0.12
0.15
L
y
y
Z
0.935
1.27
L
0.40
0.70
1.45
Detail F
L
1
Rev.3.00, Jul.15.2005, page 5 of 5
Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Keep safety first in your circuit designs!
1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble
may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage.
Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary
circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap.
Notes regarding these materials
1. These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corp. product best suited to the customer's
application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or a third party.
2. Renesas Technology Corp. assumes no responsibility for any damage, or infringement of any third-party's rights, originating in the use of any product data,
diagrams, charts, programs, algorithms, or circuit application examples contained in these materials.
3. All information contained in these materials, including product data, diagrams, charts, programs and algorithms represents information on products at the time of
publication of these materials, and are subject to change by Renesas Technology Corp. without notice due to product improvements or other reasons. It is
therefore recommended that customers contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor for the latest product
information before purchasing a product listed herein.
The information described here may contain technical inaccuracies or typographical errors.
Renesas Technology Corp. assumes no responsibility for any damage, liability, or other loss rising from these inaccuracies or errors.
Please also pay attention to information published by Renesas Technology Corp. by various means, including the Renesas Technology Corp. Semiconductor
home page (http://www.renesas.com).
4. When using any or all of the information contained in these materials, including product data, diagrams, charts, programs, and algorithms, please be sure to
evaluate all information as a total system before making a final decision on the applicability of the information and products. Renesas Technology Corp. assumes
no responsibility for any damage, liability or other loss resulting from the information contained herein.
5. Renesas Technology Corp. semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life
is potentially at stake. Please contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor when considering the use of a
product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater
use.
6. The prior written approval of Renesas Technology Corp. is necessary to reprint or reproduce in whole or in part these materials.
7. If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and
cannot be imported into a country other than the approved destination.
Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited.
8. Please contact Renesas Technology Corp. for further details on these materials or the products contained therein.
RENESAS SALES OFFICES
http://www.renesas.com
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
Renesas Technology Korea Co., Ltd.
Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, Korea
Tel: <82> 2-796-3115, Fax: <82> 2-796-2145
Renesas Technology Malaysia Sdn. Bhd.
Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, Malaysia
Tel: <603> 7955-9390, Fax: <603> 7955-9510
© 2005. Renesas Technology Corp., All rights reserved. Printed in Japan.
Colophon .3.0
相关型号：
©2020 ICPDF网 联系我们和版权申明