Octal registered transceivers 74F543, 74F544
74F543 Octal registered transceiver, non-inverting (3-State)
74F544 Octal registered transceiver, inverting 93-State)
FEATURES
• Combines74F245 and 74F373 type functions in one chip
• 8-bit octal transceiver with D-type latch
• 74F543 Non-inverting
74F544 Inverting
• Back-to-back registers for storage
• Separate controls for data flow in each direction
• A outputs sink 20mA and source 3mA
• B outputs sink 64mA and source 15mA
• 3-State outputs for bus-oriented applications
• 74F543 available in SSOP Type II package
DESCRIPTION
The 74F543 and 74F544 Octal Registered Transceivers contain two
sets of D-type latches for temporary storage of data flowing in either
direction. Separate Latch Enable (LEAB, LEBA) and Output Enable
(OEAB, OEBA) inputs are provided for each register to permit
independent control of inputting and outputting in either direction of
data flow. While the 74F543 has non-inverting data path, the 74F544
inverts data in both directions. The A outputs are guaranteed to sink
24mA, while the B outputs are rated for 64mA.
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