FBL22031

Features:

• Latched, registered or straight through in either A to B or B to A path
• Drives heavily loaded backplanes with equivalent load impedances down to 10W.
• High drive 100mA BTL open collector drivers on B-port
• Allows incident wave switching in heavily loaded backplane buses
• Reduced BTL voltage swing produces less noise and reduces power consumption
• Built-in precision band-gap reference provides accurate receiver thresholds and improved noise immunity
• Compatible with IEEE Futurebus+ or proprietary BTL backplanes
• Each BTL driver has a dedicated Bus GND for a signal return
• Controlled output ramp and multiple GND pins minimize ground bounce
• Glitch-free power up/power down operation
• Low I_CC current
• Tight output skew
• Supports live insertion
• Pins for the optional JTAG boundary scan function are provided
• High density packaging in plastic Quad Flatpack
• 5V compatible I/O on A-port
• Same pinout and function as the FBL2033 except for 30W series termination
• The A output includes a a series resistor of 30W making external terminating resistors unnecessary


Pinout




Specifications

SYMBOL	PARAMETER		RATING	UNIT
VCC	Supply voltage		-0.5 to +4.6	V
VIN	Input voltage	AI0 AI6, OEB1, OEBn, OEAn	-0.5 to +7.0	V
		B0 B8	-0.5 to +3.5	v
IIN	Input current	VIN 􀀀 0	-50	v
VOUT	Voltage applied to output in High output state		-0.5 to +7.0	V
LOUT	Current applied to output in Lowoutput state	AO0 AO8	24, 24	mA
		B0 B8	200	mA
TSTG	Storage temperature		-65 to +150

Description

The FBL22031 is a 9-bit latched/registered transceiver featuring a latched, registered or pass-thru mode in either the A-to-B or B-to-A direction.

The FBL22031 is designed with a 30W series resistor in both the HIGH and LOW states of the output.

The FBL22031 is intended to provide the electrical interface to a high performance wired-OR bus.