CY74FCT16500T
CY74FCT16500T is 18-Bit Registered Transceivers manufactured by Texas Instruments.
Data sheet acquired from Cypress Semiconductor Corporation. Data sheet modified to remove devices not offered.
CY74FCT16500T CY74FCT162500T
SCCS056A
- August 1994
- Revised October 2001
Features
- FCT-C speed at 4.6 ns
- Ioff supports partial-power- mode operation
- Edge-rate control circuitry for significantly improved noise characteristics
- Typical output skew < 250 ps
- ESD > 2000V
- TSSOP (19.6-mil pitch) and SSOP (25-mil pitch) packages
- Industrial temperature range of
- 40˚C to +85˚C
- VCC = 5V ± 10%
CY74FCT16500T Features
:
- 64 m A sink current, 32 m A source current
- Typical VOLP (ground bounce) <1.0V at VCC = 5V,
TA = 25˚C
CY74FCT162500T Features
:
- Balanced 24 m A output drivers
- Reduced system switching noise
- Typical VOLP (ground bounce) <0.6V at VCC = 5V,
TA= 25˚C
18-Bit Registered Transceivers
Functional Description
These 18-bit universal bus transceivers can be operated in transparent, latched, or clock modes by bining D-type latches and D-type flip-flops. Data flow in each direction is controlled by output-enable (OEAB and OEBA), latch enable (LEAB and LEBA), and clock inputs (CLKAB and CLKBA) inputs. For A-to-B data flow, the device operates in transparent mode when LEAB is HIGH. When LEAB is LOW, the A data is latched if CLKAB is held at a HIGH or LOW logic level. If LEAB is LOW, the A bus data is stored in the latch/flip-flop on the HIGH-to-LOW transition of CLKAB. OEAB performs the output enable function on the B port. Data flow from B-to-A is similar to that of A-to-B and is controlled by OEBA, LEBA, and CLKBA.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered...