Integrated Device Technology, Inc. FAST CMOS 16-BiT BUFFER/LINE DRIVER IDT54/74FCT1G244T/AT/CT/ET IDT54/74FCT162244T/ATICT/ET IDT54/74FCT166244T/AT/CT IDT54/74FCT162H244T/AT/CT/ET ADVANCE INFORMATION 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 < 111A (max.) ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) - 25 mil pitch SSOP and Cerpack Packages and 19.6 mil pitch TSSOP Package Extended commercial range of -40C to +85C Features for FCT16244T/AT/CT/ET: High drive outputs (-32mA lon, 64mA IoL) Power off disable outputs permit live insertion - Typical VoLP (Output Ground Bounce) < 1.0V at Vcc = 5V, TA = 25C Features for FCT162244T/AT/CT/ET: - Balanced Output Drivers: +24mA (commercial), +16mA (military) ~ Reduced system switching noise Typical VoLP (Output Ground Bounce) < 0.6V at Vec = 5V,TA = 25C Features for FCT166244T/AT/CT: Light Drive Balanced Output: +8mA (commercial), +6mA (military) Minimal system switching noise Typical VoLP (Output Ground Bounce) < 0.25V at Vcc = 5V,TA = 28C Features for FCT162H244T/AT/CT/ET: - Bus Hold retains last active bus state during 3-state Eliminates the need for external pull up resistors FUNCTIONAL BLOCK DIAGRAM DESCRIPTION: The 16-Bit Buffer/Line Driver is forbusinterface orsignal buffering applications requiring high speed and low power dissipation. These devices have a flow through pin organization, and shrink packaging to simplify board layout. All inputs are designed with hysteresis for improved noise margin. The three-state controls allow independent 4-bit, 8-bit or combined 16-bit operation. These parts are plug in replacements for 54/74ABT 16244 where higher speed, lower noise or lower power dissipation levels are desired. The FCT16244T/AT/CT/ET are ideally suited for driving high capacitance loads (>200pF) and low impedance backplanes. These high drive" buffers are designed with power off disable capability to allow live insertion" of boards when used in a backplane interface. The FCT162244T/AT/CT/ET have balanced output current levels and current limiting resistors. These offer low ground bounce, minimal undershoot, and controlied output fall times, reducing the need for external series terminating resistors while still providing very high speed operation for loads of less than 200pF. The FCT166244T/AT/CT are suited for very low noise, point-to-point driving where there is a single receiver, or avery light lumped load ( -|ohav VoH OUTPUT NORMALLY SWiGH Na HIGH EC w ov NOTES: 2544 drw 09 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH 2. Pulse Generator for All Pulses: Rate < 1.0MHz; tr < 2.5ns; ta < 2.5nsIDT54/74FCTIG244T/AT/CT/ET, 162244 T/AT/CT/ET, 166244T/ATICT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES ORDERING INFORMATION IOT XX FCT x x XXXX x x Temp. Range Drive BusHold Device Type Package Process Blank B Po PV PA E 244T 244AT 244CT 244ET { Blank }H 162 | 166 1 74 Commercial MIL-STD-883, Class B Shrink Small Outline Package (SO48-1) Thin Shrink Small Outline Package (SO48-2) CERPACK (E48-1)} Non-Inverting 16-Bit Buffer/Line Driver Standard Bus Hold 16-Bit High Drive 16-Bit Balanced Drive 16-Bit Light Drive -55C to +125C 40C to +85C 2544 drw 10 5.2