SN54ABT16601, SN74ABT16601 18-BIT UNIVERSAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS210C - JUNE 1992 - REVISED JANUARY 1997

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features

Members of the Texas Instruments Widebus^TM Family
State-of-the-Art EPIC-IIB^TM BiCMOS Design Significantly Reduces Power Dissipation
UBT^TM (Universal Bus Transceiver) Combines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, Clocked, or Clock-Enabled Mode
Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
Typical V_OLP (Output Ground Bounce) < 0.8 V at V_CC = 5 V, T_A = 25°C
Flow-Through Architecture Optimizes PCB Layout
Package Options Include Plastic 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings

Widebus, EPIC-IIB, and UBT are trademarks of TexasInstruments Incorporated.

description

These 18-bit universal bus transceivers combine D-type latches andD-type flip-flops to allow data flow in transparent, latched,clocked, and clock-enabled modes.

Data flow in each direction is controlled by output-enable ( and ), latch-enable (LEAB and LEBA),and clock (CLKAB and CLKBA) inputs. The clock can be controlled bythe clock-enable ( and ) inputs. For A-to-B data flow, thedevice operates in the transparent mode when LEAB is high. When LEABis low, the A data is latched if CLKAB is held at a high or low logiclevel. If LEAB is low, the A data is stored in the latch/flip-flop onthe low-to-high transition of CLKAB. Output enable is active low. When is low, the outputs are active.When is high, theoutputs are in the high-impedance state.

Data flow for B to A is similar to that of A to B, but uses , LEBA, CLKBA, and .

To ensure the high-impedance state during power up or power down, should be tiedto V_CC through a pullup resistor; the minimum value of theresistor is determined by the current-sinking capability of thedriver.

The SN54ABT16601 is characterized for operation over the fullmilitary temperature range of -55°C to 125°C. TheSN74ABT16601 is characterized for operation from -40°C to85°C.

Title: 8-BIT UNIVERSAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
Product Family: UNIVERSAL BUS TRANSCEIVERS (UBTS)
Device Functionality: 18-BIT BUS TRANSCEIVER
Orderable Devices: SNJ54ABT16601WD, SN74ABT16601DGGR, SN74ABT16601DL, SN74ABT16601DLR

View the complete PDF datasheet: scbs210c.pdf (115 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN54ABT16601, SN74ABT16601

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