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IDT54FCT162245ET Dataheets PDF



Part Number IDT54FCT162245ET
Manufacturers Integrated Device
Logo Integrated Device
Description FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS
Datasheet IDT54FCT162245ET DatasheetIDT54FCT162245ET Datasheet (PDF)

Integrated Device Technology, Inc. FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS IDT54/74FCT16245T/AT/CT/ET IDT54/74FCT162245T/AT/CT/ET IDT54/74FCT166245T/AT/CT IDT54/74FCT162H245T/AT/CT/ET 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 ≤ 1µ A (max.) – ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) – Packages include.

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Integrated Device Technology, Inc. FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS IDT54/74FCT16245T/AT/CT/ET IDT54/74FCT162245T/AT/CT/ET IDT54/74FCT166245T/AT/CT IDT54/74FCT162H245T/AT/CT/ET 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 ≤ 1µ A (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 • Features for FCT16245T/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 FCT162245T/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 DESCRIPTION: The 16-bit transceivers are built using advanced dual metal CMOS technology. These high-speed, low-power transceivers are ideal for synchronous communication between two busses (A and B). The Direction and Output Enable controls operate these devices as either two independent 8-bit transceivers or one 16-bit transceiver. The direction control pin (xDIR) controls the direction of data flow. The output enable pin (xOE) overrides the direction control and disables both ports. All inputs are designed with hysteresis for improved noise margin. The FCT16245T 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 FCT162245T 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 FCT162245T are plug-in replacements for the FCT16245T and ABT16245 for on-board interface applications. The FCT166245T are suited for very low noise, point-topoint driving where there is a single receiver, or a light lumped FUNCTIONAL BLOCK DIAGRAM 1 DIR 1OE 1A1 1B1 1A2 1B2 1A3 1B3 1A4 1B4 1A5 1B5 1A6 1B6 1A7 1B7 1A8 1B8 2545 drw 01 2 DIR 2OE 2A1 2B1 2A2 2B2 2A3 2B3 2A4 2B4 2A5 2B5 2A6 2B6 2A7 2B7 2A8 2B8 2545 drw 02 The IDT logo is a registered trademark of Integrated Device Technology, Inc. MILITARY AND COMMERCIAL TEMPERATURE RANGES ©1996 Integrated Device Technology, Inc. AUGUST 1996 DSC-2545/9 5.3 1 IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES FEATURES: (Cont'd.) • Features for FCT166245T/AT/CT: – Light Drive A Port: ±8mA (commercial), ±6mA (military) – High Drive B Port: +64mA, –32mA (commercial), +48mA, –24mA (military) – Minimal system switching noise – Typical VOLP (Output Ground Bounce) < 0.25V at VCC = 5V,TA = 25°C (A Port Switching) • Features for FCT162H245T/AT/CT/ET: – Bus Hold retains last active bus state during 3-state – Eliminates the need for external pull up resistors DESCRIPTION: (Cont'd.) load (<100pF). The buffers are designed to limit the output current to levels which will avoid noise and ringing on the signal lines without using external series terminating resistors. These parts have a ±8mA driver on the "A" Port and a +64/–32mA driver on the "B" Port, making them ideal for interfacing noisy system busses to noise sensitive interfaces. The FCT162H245T have "Bus Hold" which retains the input's last state whenever the input goes to high impedance. This prevents "floating" inputs and eliminates the need for pull-up/down resistors. PIN CONFIGURATIONS 1DIR 1B1 1B2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 SO48-1 37 SO48-2 SO48-3 36 35 34 33 32 31 30 29 28 27 26 25 1OE 1A1 1A2 1DIR 1B1 1B2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 E48-1 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 2545 drw 04 1OE 1A1 1A2 GND 1B3 1B4 GND 1A3 1A4 GND 1B3 1B4 GND 1A3 1A4 VCC 1B5 1B6 VCC 1A5 1A6 VCC 1B5 1B6 VCC 1A5 1A6 GND 1B7 1B8 2B1 2B2 GND 1A7 1A8 2A1 2A2 GND 1B7 1B8 2B1 2B2 GND 1A7 1A8 2A1 2A2 GND 2B3 2B4 GND 2A3 2A4 GND 2B3 2B4 GND 2A3 2A4 VCC 2B5 2B6 VCC 2A5 2A6 VCC 2B5 2B6 VCC 2A5 2A6 GND 2B7 2B8 2DIR GND 2A7 2A8 2OE 2545 drw 03 GND 2B7 2B8 2DIR GND 2A7 2A8 2OE SSOP/ TSSOP/TVSOP TOP VIEW CERPACK TOP VIEW 5.3 2 IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES PIN DESCRIPTION Pin Names xOE xDIR xAx xBx Description Output Enable Input (Active LOW) Direction Control Inpu.


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