IDT5474FCT821B

Features:

• Equivalent to AMD's Am29821-25 bipolar registers in pinout/function, speed and output drive over full temperature and voltage supply extremes
• IDT54/74FCT821A equivalent to FAST™ speed
• IDT54/74FCT821B 25% faster than FAST
• 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 (5µA max.)
• Military product compliant to MIL-STD-883, Class B
• Available in the following packages:
Commercial: SOIC
Military: CERDIP, LCC


Pinout




Specifications

Symbol	Rating	Commercial	Military	Unit
VTERM(2)	Terminal Voltage with Respect to GND	0.5 to +7	0.5 to +7	V
VTERM(3)	Terminal Voltage with Respect to GND	0.5 to VCC	0.5 to VCC	V
TA	Operating Temperature	0 to +70	55 to +125	°C
TBIAS	Temperature Under Bias	55 to +125	65 to +135	°C
TSTG	Storage Temperature	55 to +125	65 to +150	°C
PT	Power Dissipation	0.5	0.5	W
IOUT	DC Output Current	120	120	mA

Description

The IDT5474FCT821B series is built using an advanced dual metal CMOS technology. The FCT821 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 IDT5474FCT821B is a buffered, 10-bit wide version of the popular FCT374 function.

The IDT5474FCT821B high-performance interface family is designed for highcapacitance 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.