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74FCT162827ETPACT Folha de dados(PDF) 1 Page - Texas Instruments |
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74FCT162827ETPACT Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 15 page 20-Bit Buffers/Line Drivers CY74FCT16827T CY74FCT162827T Data sheet acquired from Cypress Semiconductor Corporation. Data sheet modified to remove devices not offered. SCCS064B - August 1994 - Revised September 2001 Copyright © 2001, Texas Instruments Incorporated 1CY74FCT162827T 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% CY74FCT16827T Features: • 64 mA sink current, 32 mA source current • Typical VOLP (ground bounce) <1.0V at VCC = 5V, TA = 25˚C CY74FCT162827T Features: • Balanced 24 mA output drivers • Reduced system switching noise • Typical VOLP (ground bounce) <0.6V at VCC = 5V, TA = 25˚C Functional Description The CY74FCT16827T 20-bit buffer/line driver and the CY74FCT162827T 20-bit buffer/line driver provide high-performance bus interface buffering for wide data/address paths or buses carrying parity. These parts can be used as a single 20-bit buffer or two 10-bit buffers. Each 10-bit buffer has a pair of NANDed OE for increased flexibility. 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 CY74FCT16827T is ideally suited for driving high-capacitance loads and low-impedance backplanes. The CY74FCT162827T 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 CY74FCT162827T is ideal for driving transmission lines. GND Logic Block Diagrams Pin Configuration 1 2 3 4 5 6 7 8 9 10 11 12 33 32 31 30 29 36 35 1OE1 34 SSOP/TSSOP Top View 1Y1 13 14 15 16 17 18 19 20 21 22 23 24 45 44 43 42 41 37 38 39 40 48 47 46 1A1 1OE1 1Y1 1Y2 1Y3 1Y4 1A1 1A2 1A3 1A4 1OE2 GND GND VCC 2Y3 2Y4 2Y1 2Y2 1A6 VCC GND GND 2OE1 FCT16827-1 1OE2 TO 9 OTHER CHANNELS 2A1 2OE1 TO 9 OTHER CHANNELS 2OE2 2Y1 1Y5 1Y6 1Y7 1Y8 1Y9 1Y10 2Y5 2Y9 2Y7 2Y8 VCC 2Y6 2Y10 GND 25 26 27 28 55 54 53 52 51 50 49 56 1A5 1A7 1A9 1A8 1A10 2A3 2A4 2A2 GND 2A5 2A9 2A7 2A8 VCC 2A6 2A10 2A1 GND 2OE2 FCT16827-2 FCT16827-3 |
Nº de peça semelhante - 74FCT162827ETPACT |
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Descrição semelhante - 74FCT162827ETPACT |
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