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CY74FCT16374ETPAC Datasheet(PDF) 1 Page - Texas Instruments |
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CY74FCT16374ETPAC Datasheet(HTML) 1 Page - Texas Instruments |
1 / 21 page 16-Bit Registers CY74FCT16374T CY74FCT162374T SCCS055C - August 1994 - Revised September 2001 Data sheet acquired from Cypress Semiconductor Corporation. Data sheet modified to remove devices not offered. Copyright © 2001, Texas Instruments Incorporated 1CY74FCT162374T Features •Ioff supports partial-power-down 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% CY74FCT16374T Features: • 64 mA sink current, 32 mA source current • Typical VOLP (ground bounce) <1.0V at VCC = 5V, TA = 25˚C CY74FCT162374T Features: • Balanced 24 mA output drivers • Reduced system switching noise • Typical VOLP (ground bounce) <0.6V at VCC = 5V, TA= 25˚C Functional Description CY74FCT16374T and CY74FCT162374T are 16-bit D-type registers designed for use as buffered registers in high-speed, low power bus applications. These devices can be used as two independent 8-bit registers or as a single 16-bit register by connecting the output Enable (OE) and Clock (CLK) inputs. Flow-through pinout and small shrink packaging aid in simplifying board layout. 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 down. The CY74FCT16374T is ideally suited for driving high-capacitance loads and low-impedance backplanes. The CY74FCT162374T has 24-mA balanced output drivers with current limiting resistors in the outputs. This reduces the need for external terminating resistors and provides for minimal undershoot and reduced ground bounce. The CY74FCT162374T is ideal for driving transmission lines. Logic Block Diagrams Pin Configuration D C 1OE FCT162374-1 1CLK 1D1 1O1 TO 7 OTHER CHANNELS D C 2OE FCT162374-2 2CLK 2D1 2O1 FCT162374-3 GND 1 2 3 4 5 6 7 8 9 10 11 12 33 32 31 30 29 25 26 27 28 36 35 1OE 34 SSOP/TSSOP Top View 13 14 15 16 17 18 19 20 21 22 23 24 45 44 43 42 41 37 38 39 40 48 47 46 1O1 1O2 1O3 1O4 1D1 1D2 1D3 1D4 1CLK GND GND VCC 1O7 1O8 1O5 1O6 1D5 1D6 1D7 1D8 VCC GND GND 2O3 2O4 2O1 2O2 2D1 2D2 2D3 2D4 GND GND VCC 2O7 2O8 2O5 2O6 2D5 2D6 2D7 2D8 VCC GND 2OE 2CLK TO 7 OTHER CHANNELS |
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