HD74BC245A Datasheet, PDF (1/9 Pages) Hitachi Semiconductor – Octal Bus Transceivers With 3 State Outputs

HD74BC245A
Octal Bus Transceivers With 3 State Outputs
REJ03D0282–0400Z
(Previous ADE-205-008B (Z))
Rev.4.00
Jul.16.2004
Description
The HD74BC245A provides high drivability and operation equal to or better than high speed bipolar standard logic IC
by using Bi-CMOS process. The device features low power dissipation that is about 1/5 of high speed bipolar logic IC,
when the frequency is 10 MHz. The device has ten buffers with three state outputs in a 20 pin package. Each device
has an active low enable input G and a direction control input DiR. When DiR is high, data flows from the A inputs to
the B outputs. When DiR is low, data flows from the B inputs to the A outputs. When G is high, disables both A and B
ports by placing then in a high impedance.
Features
• Input/Output are at high impedance state when power supply is off.
• Built in input pull up circuit can make input pins be open, when not used.
• TTL level input
• Wide operating temperature range
Ta = –40 to + 85°C
• Ordering Information
Part Name
Package Type
Package Code
Package
Abbreviation
HD74BC245AP
DILP-20 pin
DP-20N, -20NEV P
HD74BC245AFPEL
SOP-20 pin (JEITA) FP-20DAV
FP
HD74BC245ATELL
TSSOP-20 pin
TTP-20DAV
T
Note: Please consults the sales office for the above package availability.
Taping Abbreviation
(Quantity)
—
EL (2,000 pcs/reel)
ELL (2,000 pcs/reel)
Function Table
Control Inputs
G
DiR
L
L
L
H
H
X
H : High level
L : Low level
Z : High impedance
B data to A bus
A data to B bus
Z
Operation
Rev.4.00, Jul.16.2004, page 1 of 8