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FBL22041

NXP
Part Number FBL22041
Manufacturer NXP
Description 3.3V BTL 7-bit Futurebus transceiver standard A-port
Published Mar 30, 2005
Detailed Description INTEGRATED CIRCUITS FBL22041 3.3V BTL 7-bit Futurebus + transceiver (standard A-port) Product specification Supersedes ...
Datasheet PDF File FBL22041 PDF File

FBL22041
FBL22041


Overview
INTEGRATED CIRCUITS FBL22041 3.
3V BTL 7-bit Futurebus + transceiver (standard A-port) Product specification Supersedes data of 1998 Feb 02 IC23 Data Handbook 1998 Aug 12 Philips Semiconductors Philips Semiconductors Product specification 3.
3V BTL 7-bit Futurebus+ transceiver (standard A-port) FBL22041 FEATURES • 7-bit BTL transceiver • Separate I/O on TTL A-port • Inverting • Three separate pairs of driver enables in a 1 bit, 3 bit, 3 bit arrangement • Drives heavily loaded backplanes with equivalent load impedances down to 10Ω.
• 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 • The A port includes a series resistor of 30Ω making external terminating resistors unnecessary • 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 DESCRIPTION The FBL22041 is a 7-bit bidirectional BTL transceiver and is intended to provide the electrical interface to a high performance wired-OR bus.
The FBL22041 is an inverting transceiver.
The B-port drivers are Low-capacitance open collectors with controlled ramp and are designed to sink 100mA.
Precision band gap references on the B-port insure very good noise margins by limiting the switching threshold to a narrow region centered at 1.
55V.
The FBL22041 is designed with a 30Ω series resistance in both the HIGH and LOW states of the output.
The FBL22041 is pin and function compatible with FB2041 but operates at a 3.
3V supply voltage, greatly reducing power consumption.
• Built-in precision band-gap reference provides accurate receiver thresholds and improved noise immunity • Compatible with IEEE Futurebus+ or proprietary BTL backplanes • Controlled output ramp and multiple GND pins minimize ground bounce • Each BTL driver has a dedicated Bu...


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