SN74BCT646DWE4

Number of Channels per Chip : 8
Output Type : 3-State
Maximum Operating Temperature : + 70 C
Package / Case : SOIC-24
Packaging : Tube
Supply Voltage - Max : 5.5 V
Supply Voltage - Min : 4.5 V
Input Level : TTL
Output Level : TTL
High Level Output Current : - 15 mA
Low Level Output Current : 64 mA
Logic Type : BiCMOS
Logic Family : 74BCT
Propagation Delay Time : 9.4 ns


Description

The SN74BCT646DWE4 is one member of the SN74BCT646 series.These devices consist of bus transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A 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 'BCT646 devices.

Features of the SN74BCT646DWE4 are:(1)state-of-the-art BiCMOS design significantly reduces Iccz; (2)bus transceivers/registers; (3)independent registers and enables for A and B buses; (4)multiplexed real-time and stored data.The select-control (SAB and SBA) inputs can multiplex stored and real-time (transparent mode) data. The direction control (DIR) determines which bus will receive data when OE is low. In the isolation mode (OE high),A data can be stored in one register and/or B data can be stored in the other register.

The absolute maximum ratings of the SN74BCT646DWE4 can be summarized as:(1)supply voltage range:-0.5 V to 7 V;(2)input voltage range:-0.5 V to 7 V;(3)voltage range applied to any output in the disabled or power-off state:-0.5 V to 7 V;(4)voltage range applied to any output in the high state:-0.5 V to VCC;(5)Current into any output in the low state:96 mA;(6)storage temperature range:-65 to 150.Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts of the SN74BCT646DWE4 are underway to better integrate information from third parties.

Parameters:

Technical/Catalog Information	SN74BCT646DWE4
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Logic Type	Transceiver, Non-Inverting
Package / Case	24-SOIC (7.5mm Width)
Packaging	Tube
Mounting Type	Surface Mount
Number of Bits per Element	8
Number of Elements	1 - Single
Operating Temperature	0°C ~ 70°C
Voltage - Supply	4.5 V ~ 5.5 V
Current - Output High, Low	15mA, 64mA
Drawing Number	296; 4040000-5; DW; 24
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	SN74BCT646DWE4 SN74BCT646DWE4