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IDT74FCT162646CTEB Datasheet(PDF) 1 Page - Integrated Device Technology |
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IDT74FCT162646CTEB Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 9 page Integrated Device Technology, Inc. The IDT logo is a registered trademark of Integrated Device Technology, Inc. FUNCTIONAL BLOCK DIAGRAM FAST CMOS 16-BIT BUS TRANSCEIVER/ REGISTERS (3-STATE) IDT54/74FCT16646T/AT/CT/ET IDT54/74FCT162646T/AT/CT/ET 1 B1 1 A1 1 OE 1 DIR 1 SBA 1 SAB 1 CLKBA 1 CLKAB 2540 drw 01 TO 7 OTHER CHANNELS B REG A REG D C C D 2 A1 2 OE 2 DIR 2 SBA 2 SAB 2 B1 2 CLKBA 2 CLKAB 2540 drw 02 TO 7 OTHER CHANNELS B REG A REG D C C D 74FCT162646T/AT/CT/ET 16-bit registered transceivers are built using advanced dual metal CMOS technology. These high-speed, low-power devices are organized as two inde- pendent 8-bit bus transceivers with 3-state D-type registers. The control circuitry is organized for multiplexed transmission of data between A bus and B bus either directly or from the internal storage registers. Each 8-bit transceiver/register fea- tures direction control (xDIR), over-riding Output Enable con- trol (x OE) and Select lines (xSAB and xSBA) to select either real-time data or stored data. Separate clock inputs are provided for A and B port registers. Data on the A or B data bus, or both, can be stored in the internal registers by the LOW-to-HIGH transitions at the appropriate clock pins. Flow- through organization of signal pins simplifies layout. All inputs are designed with hysteresis for improved noise margin. The IDT54/74FCT16646T/AT/CT/ET are ideally suited for driving high-capacitance loads and low-impedance backplanes. The output buffers are designed with power off disable capability to allow "live insertion" of boards when used as backplane drivers. The IDT54/74FCT162646T/AT/CT/ET have balanced output drive with current limiting resistors. This offers low ground bounce, minimal undershoot, and controlled output fall times–reducing the need for external series terminating resistors. The IDT54/74FCT162646T/AT/CT/ET are plug-in replacements for the IDT54/74FCT16646T/AT/CT/ET and 54/74ABT16646 for on-board bus interface applications. MILITARY AND COMMERCIAL TEMPERATURE RANGES AUGUST 1996 ©1996 Integrated Device Technology, Inc. 5.13 DSC-4231/9 1 DESCRIPTION: The IDT54/74FCT16646T/AT/CT/ET and IDT54/ FEATURES: • Common features: – 0.5 MICRON CMOS Technology – High-speed, low-power CMOS replacement for ABT functions – Typical tSK(o) (Output Skew) < 250ps – Low input and output leakage ≤1µA (max.) – ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) – Packages include 25 mil pitch SSOP, 19.6 mil pitch TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack – Extended commercial range of -40 °C to +85°C –VCC = 5V ±10% • Features for FCT16646T/AT/CT/ET: – High drive outputs (-32mA IOH, 64mA IOL) – Power off disable outputs permit “live insertion” – Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25 °C • Features for FCT162646T/AT/CT/ET: – Balanced Output Drivers: ±24mA (commercial), ±16mA (military) – Reduced system switching noise – Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V,TA = 25 °C |
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