Octal Bi-directional Transceiver with 3-State Input/Output
(Previous ADE-205-384 (Z))
The HD74AC245/HD74ACT245 contains eight non-inverting bidirectional buffers with 3-state outputs and is intended
for bus-oriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive
(T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active-High) enables
data from A ports to B ports; Receive (active-Low) enables data from B ports to A ports. The Output Enable input,
when High, disables, both A and B ports by placing them in a High Z condition.
• Noninverting Buffers
• Bi-directional Data Path
• A and B Outputs Source/Sink 24 mA
• HD74ACT245 has TTL-Compatible Inputs
• Ordering Information: Ex. HD74AC245
Package Type Package Code Package Abbreviation Taping Abbreviation (Quantity)
DP-20N, -20NEV P
HD74AC245FPEL SOP-20 pin (JEITA) FP-20DAV
EL (2,000 pcs/reel)
HD74AC245RPEL SOP-20 pin (JEDEC) FP-20DBV
EL (1,000 pcs/reel)
HD74AC245TELL TSSOP-20 pin
ELL (2,000 pcs/reel)
Notes: 1. Please consult the sales office for the above package availability.
2. The packages with lead-free pins are distinguished from the conventional products by adding V at the end of
the package code.
Rev.2.00, Jul.16.2004, page 1 of 8