Regarding the change of names mentioned in the document, such as Hitachi
Electric and Hitachi XX, to Renesas Technology Corp.
The semiconductor operations of Mitsubishi Electric and Hitachi were transferred to Renesas
Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog
and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.)
Accordingly, although Hitachi, Hitachi, Ltd., Hitachi Semiconductors, and other Hitachi brand
names are mentioned in the document, these names have in fact all been changed to Renesas
Technology Corp. Thank you for your understanding. Except for our corporate trademark, logo and
corporate statement, no changes whatsoever have been made to the contents of the document, and
these changes do not constitute any alteration to the contents of the document itself.
Renesas Technology Home Page: http://www.renesas.com
Renesas Technology Corp.
Customer Support Dept.
April 1, 2003
To all our customers
Cautions
Keep safety first in your circuit designs!
1. Renesas Technology Corporation 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
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Technology Corporation 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
Corporation or a third party.
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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
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subject to change by Renesas Technology Corporation without notice due to product improvements or
other reasons. It is therefore recommended that customers contact Renesas Technology Corporation
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before purchasing a product listed herein.
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rising from these inaccuracies or errors.
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(http://www.renesas.com).
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contained therein.
HD151245
Octal Bus Transceivers With 3 State Outputs
ADE-205-597 (Z)
1st. Edition
Dec. 2000
Description
The HD151245 featurs high speed operation and high drivability equivalent to the HD74LS245, which
realize ultra low power dissipation. This device consists of eight bus transceivers with three state outputs
in a 20 pin package. The device transmit data from the A bus to the B bus when the direction control (DIR)
input is at the high level,and from the B bus to the A bus when the DIR input is at the low level, the enable
input (
G) can be used to disable the device so that the buses are effectively isolated. The power up/down
protection provides the outputs in high impedance state when Vcc is low regardless of enable input.
Features
High speed:
tpd = 10 ns typ.
High output current:
I
OH
= 15 mA
I
OL
= 24 mA
TTL Compatible Input/Output
Wide operating temperature range: Ta = 40 to +85
C
High impedance state for both
Input/Output in power off condition.
Power Up/Down Protection
HD151245
3
Absolute Maximum Ratings (Ta = 25
C)
Item
Symbol
Rating
Unit
Supply Voltage
V
CC
0.5 to +7.0
V
Input Voltage(
G
, DiR)
V
IN
0.5 to +7.0
V
Input Voltage(A, B)
V
IN
0.5 to +5.5
V
Output Voltage
V
OUT
0.5 to +5.5
V
Power Dissipation
P
T
500
mW
Storage Temperature Range
Tstg
65 to +150
C
Note:
1. 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
Symbol
Min
Typ
Max
Unit
Supply Voltage
V
CC
4.5
5.0
5.5
V
Output Current
I
OH
--
--
15
mA
I
OL
--
--
24
mA
Operating Temperature
Topr
40
25
85
C
Input Rise and Fall Time*
1
t
r
, t
f
0
--
250
ns/V
Note:
1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
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