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
Part Name
Package Type
Package Code
(Previous Code)
Package
Abbreviation
Taping Abbreviation
(Quantity)
HD74LS245P
DILP-20 pin
PRDP0020AC-B
(DP-20NEV)
P
—
HD74LS245FPEL
SOP-20 pin (JEITA)
PRSP0020DD-B
(FP-20DAV)
FP
EL (2,000 pcs/reel)
HD74LS245RPEL
SOP-20 pin (JEDEC)
PRSP0020DC-A
(FP-20DBV)
RP
EL (1,000 pcs/reel)
Note: Please consult the sales office for the above package availability.
Pin Arrangement
DIR
1
20
VCC
A1
2
19
Enable G
A2
3
18
B1
A3
4
17
B2
A4
5
16
B3
A5
6
15
B4
A6
7
14
B5
A7
8
13
B6
A8
9
12
B7
GND
10
11
B8
(Top view)
Rev.3.00, Jul.15.2005, page 1 of 5
