OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

These devices consist of bus-transceiver circuits, D-type Flip-Flops and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage Registers Output-enable (OEAB and OEBA) inputs are provided to control the transceiver functions. Select-control (SAB and SBA) inputs are provided to select real-time or stored data transfer. The circuitry used for select control eliminates the typical decoding glitch that occurs in a multiplexer during the transition between stored and real-time data. A low input level selects real-time data, and a high input level selects stored data. Figure 1 illustrates the four fundamental bus-management functions that CAN be performed with the octal bus transceivers and Registers Data on the A or B data bus, or both, CAN be stored in the internal D-type Flip-Flops by low-to-high transitions at the appropriate Clock (CLKAB or CLKBA) terminals, regardless of the select- or output-control terminals. When SAB and SBA are in the real-time transfer mode, it is possible to store data without using the internal D-type Flip-Flops by simultaneously enabling OEAB and OEBA. In this configuration, each output reinforces its input. When all other data sources to the two sets of bus lines are at high impedance, each set of bus lines remains at its last state. By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN54ALS643AJ Rochester Electronics LLC Bus Transceiver, ALS Series, 1-Func, 8-Bit, True Output, TTL, CDIP20, PACKAGE-20
SN54ALS574AJ Rochester Electronics LLC Bus Driver, ALS Series, 1-Func, 8-Bit, True Output, TTL, CDIP20
SN54ALS808AFK Rochester Electronics LLC AND Gate, ALS Series, 6-Func, 2-Input, TTL, CQCC20
SN54ALS12AJ Rochester Electronics LLC NAND Gate, ALS Series, 3-Func, 3-Input, TTL, CDIP14, 0.300 INCH, CERAMIC, DIP-14
SN54ALS08FK Rochester Electronics LLC AND Gate, ALS Series, 4-Func, 2-Input, TTL, CQCC20, CERAMIC, CC-20
SN54ALS169BFK Rochester Electronics LLC Binary Counter, ALS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, CQCC20, CERAMIC, CC-20
SN54ALS1244AJ Rochester Electronics LLC Bus Driver, ALS Series, 2-Func, 4-Bit, True Output, TTL, CDIP20, 0.300 INCH, CERAMIC, DIP-20
SN54ALS1240FK Rochester Electronics LLC Bus Driver, ALS Series, 2-Func, 4-Bit, Inverted Output, TTL, CQCC20, QCC-20
SN54ALS240J Rochester Electronics LLC Bus Driver
SN54ALS160J Rochester Electronics LLC Decade Counter,
SN54ALS 's PackagesSN54ALS 's pdf datasheet
SN74AS651NT
ALS651A
ALS652A
ALS653
ALS654
SN74AS651DW
AS651
SN74AS651DWR
AS652
SNJ54ALS652JT
SNJ54ALS653JT
SNJ54AS651JT
SNJ54AS652JT
SNJ54ALS652FK
SNJ54ALS653FK
SNJ54AS651FK




SN54ALS Pinout, Pinouts
SN54ALS pinout,Pin out
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