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IDT54FCT162H272CTE Datasheet(PDF) 1 Page - Integrated Device Technology |
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IDT54FCT162H272CTE Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 8 page Integrated Device Technology, Inc. MILITARY AND COMMERCIAL TEMPERATURE RANGES AUGUST 1996 ©1996 Integrated Device Technology, Inc. 5.5 DSC-3071/3 IDT54/74FCT162H272AT/CT/ET 1 The IDT logo is a registered trademark of Integrated Device Technology, Inc. FAST CMOS 12-BIT SYNCHRONOUS BUS EXCHANGER FEATURES: • 0.5 MICRON CMOS Technology • 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 • Balanced Output Drivers: ±24mA (commercial) ±16mA (military) • Reduced system switching noise • Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V, TA = 25 °C • Bus Hold retains last active bus state during 3-state • Eliminates the need for external pull up resistors multiplexers for use in synchronous memory interleaving applications. All registers have a common clock and use a clock enable ( CExxx) on each data register to control data sequencing. The output enables and mux select ( OEA, OEB and SEL) are also under synchronous control allowing direc- tion changes to be edge triggered events. The tri-port bus exchanger has three 12-bit ports. Data may be transferred between the A port and either/both of the B ports. The clock enable ( CE1B, CE2B, CEA1B and CEA2B) inputs control the data storage. Both B ports have a common output enable ( OEB) to aid in synchronously loading the B registers from the B port. The FCT162H272AT/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 FCT162H272AT/CT/ET have "Bus Hold" which re- tains 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. DESCRIPTION: The FCT162H272AT/CT/ET synchronous tri-port bus ex- changers are high-speed, bidirectional,12-bit, registered, bus FUNCTIONAL BLOCK DIAGRAM A-1B REGISTER CLK SEL 12 M U X 12 12 A1:12 1B1:12 12 12 12 12 12 2B1:12 CE1B CEA1B 1 0 OEB OEA CE2B CEA2B 1B-A REGISTER 12 2B-A REGISTER A-2B REGISTER CONTROL REGISTER CE D Q CE D Q CE D Q CE D Q 3071 drw 01 |
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