CY74FCT2543ATQCT Texas Instruments - Yeehing Electronics

Octal Registered Transceivers with 3-State Outputs and Series Damping Resistors

Pricing (USD)

Quantity	Unit Price
1 — 99	0.956
100 — 249	0.79
250 — 999	0.567
1,000 +	0.30

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Bus Transceivers
RoHS	Y
Logic Family	FCT
Input Level	TTL
Output Level	TTL
Output Type	3-State
High Level Output Current	- 15 mA
Low Level Output Current	12 mA
Propagation Delay Time	6.5 ns
Supply Voltage - Max	5.25 V
Supply Voltage - Min	4.75 V
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Package / Case	QSOP-24
Packaging	Reel
Function	Latched Transceiver
Height	1.5 mm
Length	8.75 mm
Number of Circuits	8
Operating Temperature Range	- 40 C to + 85 C
Product	Registered Transceiver
Series	CY74FCT2543T
Technology	CMOS
Width	4 mm
Brand	Texas Instruments
Mounting Style	SMD/SMT
Number of Channels	8
Moisture Sensitive	Yes
Operating Supply Voltage	4.75 V to 5.25 V
Polarity	Non-Inverting
Product Type	Bus Transceivers
Factory Pack Quantity	2500
Subcategory	Logic ICs
Unit Weight	0.059966 oz

For more information, please refer to datasheet

Documents

CY74FCT2543ATQCT Datasheet

More Information

The CY74FCT2543T octal latched transceiver contains two sets of eight D-type latches. Separate latch enable (LEAB, LEBA) and output enable (OEAB, OEBA) inputs permit each latch set to have independent control of inputting and outputting in either direction of data flow. For example, for data flow from A to B, the A-to-B enable (CEAB) input must be low to enter data from A or to take data from B, as indicated in the function table. With CEAB low, a low signal on the A-to-B latch enable (LEAB) input makes the A-to-B latches transparent; a subsequent low-to-high transition of LEAB puts the A latches in the storage mode and their outputs no longer change with the A inputs. With CEAB and OEAB both low, the 3-state B output buffers are active and reflect data present at the output of the A latches. Control of data from B to A is similar, but uses CEAB, LEAB, and OEAB inputs. On-chip termination resistors at the outputs reduce system noise caused by reflections. The CY74FCT2543T can replace the CY74FCT543T to reduce noise in an existing design.