QS74FCT543T
QS74FCT543T is High-Speed CMOS 8-Bit Bus Interface Latch Transceivers manufactured by Quality Semiconductor.
QUALITY SEMICONDUCTOR, INC.
QS54/74FCT543T, 2543T
High-Speed CMOS 8-Bit Bus Interface Latch Transceivers
QS54/74FCT543T QS54/74FCT2543T
Features
/BENEFITS
- Pin and function patible to the 74F543 74FCT543 and 74FCT543T
- Industrial temperature
- 40°C to 85°C
- CMOS power levels: <7.5m W static
- Available in DIP, SOIC, QSOP, ZIP, HQSOP
- Undershoot clamp diodes on all inputs
- TTL-patible input and output levels
- Ground bounce controlled outputs
- Reduced output swing of 0-3.5V
- Military product pliant to MIL-STD-883,
Class B
FCT-T 543T
- JEDEC-FCT spec patible
- A, C and D speed grades with 4.6ns t PD for D
- IOL = 64m A Ind., 48m A Mil.
FCT-T 2543T
- Built-in 25Ω series resistor outputs reduce reflection and other system noise
- A, C and D speed grades with 4.6ns t PD for D
Now an
- IOL = 12m A
Figure 1. Functional Block Diagram
DESCRIPTION
The QSFCT543T and QSFCT2543T are 8-bit highspeed CMOS TTL-patible latched bus transceivers with three-state outputs that are ideal for driving high capacitance loads such as memory and address buses. The 2543 devices are 25Ω resistor output versions useful for driving transmission lines and reducing system noise. The 2543 series parts can replace the 543 series to reduce noise in an existing design. All inputs have clamp diodes for undershoot noise suppression. All outputs have ground bounce suppression (see QSI Application pany Note AN-001), and outputs will not load an active bus when VCC is removed from the...
