Details, datasheet, quote on part number: SN54ALS648JT
PartSN54ALS648JT
CategoryLogic => Bus Transceivers
DescriptionOctal Bus Transceivers And Registers With 3-state Outputs
CompanyTexas Instruments, Inc.
DatasheetDownload SN54ALS648JT datasheet
Cross ref.Similar parts: 5962-9052301LA, SN54AS646, SN74ALS648A, SN74AS640, SN74AS641, SN74AS646
Quote
Find where to buy
 
  

 

Features, Applications

Independent Registers for A and B Buses Multiplexed Real-Time and Stored Data Choice of True or Inverting Data Paths Choice 3-State or Open-Collector Outputs Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs

DEVICE OUTPUT 3 state 3 state LOGIC True Inverting
description

These devices consist of bus-transceiver circuits with 3-state or open-collector outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers. Data on the or B bus is clocked into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input. Figure 1 illustrates the four fundamental bus-management functions that can be performed with the octal bus transceivers and registers. Output-enable (OE) and direction-control (DIR) inputs control the transceiver functions. In the transceiver mode, data present at the highimpedance port may be stored in either or both registers.

The select-control (SAB and SBA) inputs can No internal connection multiplex stored and real-time (transparent mode) data. 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. DIR determines which bus receives data when OE is low. In the isolation mode (OE high), A data may be stored in one register and /or B data may be stored in the other register. When an output function is disabled, the input function is still enabled and can be used to store and transmit data. Only one of the two buses, or B, may be driven at a time. The -1 version of the SN74ALS646A is identical to the standard version, except that the recommended maximum IOL in the -1 version is increased to 48 mA. There are no -1 versions of the or SN74ALS648A. The SN54ALS646, SN54ALS648, and SN54AS646 are characterized for operation over the full military temperature range to 125C. The SN74ALS648A, SN74AS646, and SN74AS648 are characterized for operation from to 70C.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

BUS B 22 SBA X REAL-TIME TRANSFER BUS A TO BUS B 1 CLKAB L 23 CLKBA X 2 SAB X H BUS B 22 SBA H X TRANSFER STORED DATA TO A AND/OR B

SN74ALS646A, SN74AS646 INPUTS OE DIR CLKAB or L CLKBA L X SAB SBA A1 A8 Input Unspecified Input disabled Output Input DATA I/O B1 B8 Unspecified Input disabled Input Output OPERATION OR FUNCTION Store A, B unspecified Store B, A unspecified Store A and B data Isolation, hold storage Real-time B data to A bus Stored B data to A bus Real-time A data to B bus

Stored A data to B bus The data output functions can be enabled or disabled by various signals at OE and DIR. Data input functions are always enabled; i.e., data at the bus terminals is stored on every low-to-high transition of the clock inputs. SN74ALS648A, SN74AS648 INPUTS OE DIR CLKAB H or CLKBA L X SAB SBA A1 A8 Input Unspecified Input disabled Output Input DATA I/O B1 B8 Unspecified Input disabled Input Output OPERATION OR FUNCTION Store A, B unspecified Store B, A unspecified Store A and B data Isolation, hold storage Real-time B data to A bus Stored B data to A bus Real-time A data to B bus

H or Input Output Stored A data to B bus The data output functions can be enabled or disabled by various signals at OE and DIR. Data input functions are always enabled; i.e., data at the bus terminals is stored on every low-to-high transition of the clock inputs.


 

Some Part number from the same manufacture Texas Instruments, Inc.
SN54ALS652
SN54ALS652FK Octal Bus Transceivers And Registers With 3-state Outputs
SN54ALS652JT ti SN54ALS652, Octal Bus Transceivers And Registers With 3-State Outputs
SN54ALS653
SN54ALS653FK Octal Bus Transceivers And Registers With 3-state Outputs
SN54ALS688
SN54ALS688FK 8-bit Identity Comparators
SN54ALS688J ti SN54ALS688, 8-Bit Identity Comparators
SN54ALS74A
SN54ALS74AFK Dual Positive-edge-triggered D-type Flip-flops With Clear And Preset
SN54ALS74AJ ti SN54ALS74A, Dual Positive-edge-triggered D-type Flip-flops With Clear And Preset
SN54ALS804A
SN54ALS804AFK Hex 2-input NAND Drivers
SN54ALS804AJ ti SN54ALS804A, Hex 2-Input NAND Drivers
SN54ALS805A Hex 2-input Nor Drivers
SN54ALS805AJ ti SN54ALS805A, Hex 2-Input Nor Drivers
SN54ALS832A
SN54ALS832AFK Sn54als805a Sn54as805b Sn74als805a Sn74as805b
SN54ALS832AJ ti SN54ALS832A, Hex 2-Input or Drivers
SN54ALS857
SN54ALS857FK Hex 2-to-1 Universal Multiplexers With 3-state Outputs

5962-9214701M2A : Inverting Buffers and Drivers ti SN54ABT244, Octal Buffers Drivers With 3-State Outputs

SN54HCT541FK : Octal Buffers And Line Drivers With 3-state Outputs

SN65LVDT3486BD : ti SN65LVDT3486B, Quad LVDS Receiver With -2 to 4.4V Common-mode Range

TMS320LF2402PZ : DSP Controllers

OPA4872ID : 4:1 High Speed Multiplexe The OPA4872 offers a very wideband 4:1 multiplexer in an SO-14 package. Using only 10.6mA, the OPA4872 provides a user-settable output amplifier gain with greater than 500MHz large-signal bandwidth (2VPP). The switching glitch is improved over earlier solutions using a new

TPS3610U50 : Backup-battery Supervisors FOR RAM Retention

AIC111RHBG4 : IC, AUDIO CODEC, 16BIT, 40KHZ, QFN-32 Specifications: Audio CODEC Type: Audio ; No. of ADCs: 1 ; No. of DACs: 1 ; No. of Input Channels: 1 ; No. of Output Channels: 1 ; ADC / DAC Resolution: 16bit ; ADCs / DACs Signal to Noise Ratio: - ; Sampling Rate: 40kSPS ; IC Interface Type: Serial, SPI ; Supply Voltage Range: 1.1V to 1.5V ; Operat

ADS62C17IRGCR : Data Acquisition - Analog To Digital Converter (adc) Integrated Circuit (ics) 2 Differential, Unipolar Tape & Reel (TR) Analog and Digital; IC ADC 11BIT SRL/PAR 200M 64VQFN Specifications: Number of Bits: 11 ; Package / Case: 64-VFQFN Exposed Pad ; Data Interface: Serial, Parallel ; Packaging: Tape & Reel (TR) ; Sampling Rate (Per Second): 200M ; Operating Temperature: -40C ~ 85C ; Voltage Supply Source: Analog and Digital ; Number of Inputs and Type: 2 Different

TLV3401CDBVRG4 : ti TLV3401, Single Nanopower Open Drain Output Comparator

 
0-C     D-L     M-R     S-Z