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IDT74FCT823CL Datasheet(PDF) 1 Page - Integrated Device Technology |
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IDT74FCT823CL Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 8 page Integrated Device Technology, Inc. MILITARY AND COMMERCIAL TEMPERATURE RANGES MAY 1992 ©1992 Integrated Device Technology, Inc. 7.19 DSC-4618/2 ® IDT54/74FCT821A/B/C IDT54/74FCT823A/B/C IDT54/74FCT824A/B/C IDT54/74FCT825A/B/C HIGH-PERFORMANCE CMOS BUS INTERFACE REGISTERS FEATURES: • Equivalent to AMD’s Am29821-25 bipolar registers in pinout/function, speed and output drive over full tem- perature and voltage supply extremes • IDT54/74FCT821A/823A/824A/825A equivalent to FAST ™ speed • IDT54/74FCT821B/823B/824B/825B 25% faster than FAST • IDT54/74FCT821C/823C/824C/825C 40% faster than FAST • Buffered common Clock Enable ( EN) and asynchronous Clear input ( CLR) •IOL = 48mA (commercial) and 32mA (military) • Clamp diodes on all inputs for ringing suppression • CMOS power levels (1mW typ. static) • TTL input and output compatibility • CMOS output level compatible • Substantially lower input current levels than AMD’s bipolar Am29800 series (5 µA max.) • Product available in Radiation Tolerant and Radiation Enhanced versions • Military product compliant to MIL-STD-883, Class B DESCRIPTION: The IDT54/74FCT800 series is built using an advanced dual metal CMOS technology. The IDT54/74FCT820 series bus interface registers are designed to eliminate the extra packages required to buffer existing registers and provide extra data width for wider address/data paths or buses carrying parity. The IDT54/ 74FCT821 are buffered, 10-bit wide versions of the popular ‘374 function. The IDT54/74FCT823 and IDT54/74FCT824 are 9-bit wide buffered registers with Clock Enable ( EN) and Clear ( CLR) – ideal for parity bus interfacing in high-perform- ance microprogrammed systems. The IDT54/74FCT825 are 8-bit buffered registers with all the ‘823 controls plus multiple enables ( OE1, OE2, OE3) to allow multiuser control of the interface, e.g., CS, DMA and RD/WR. They are ideal for use as an output port requiring HIGH IOL/IOH. All of the IDT54/74FCT800 high-performance interface family are designed for high-capacitance load drive capability, while providing low-capacitance bus loading at both inputs and outputs. All inputs have clamp diodes and all outputs are designed for low-capacitance bus loading in high-impedance state. FUNCTIONAL BLOCK DIAGRAMS IDT54/74FCT821/823/825 IDT54/74FCT824 The IDT logo is a registered trademark of Integrated Device Technology, Inc. FAST is a trademark of National Semiconductor Co. 2608 cnv* 01 2608 cnv* 02 D CP Q Q CL D CP Q Q CL D0 DN Y0 YN EN CLR CP OE D CP Q Q CL D CP Q Q CL D0 DN Y0 YN EN CLR CP OE 1 |
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