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FBL22041 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. FBL22041
Description  3.3V BTL 7-bit Futurebus transceiver standard A-port
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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FBL22041 Datasheet(HTML) 2 Page - NXP Semiconductors

 
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Philips Semiconductors
Product specification
FBL22041
3.3V BTL 7-bit Futurebus+ transceiver (standard A-port)
2
1998 Aug 12
853-2039 19863
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 10
Ω.
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
Controlled output ramp and multiple GND pins minimize ground
bounce
Each BTL driver has a dedicated Bus GND for a signal return
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
The A port includes a series resistor of 30Ω making external
terminating resistors unnecessary
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 30
Ω 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.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
TYPICAL
UNIT
tPLH
Propagation delay
4.1
ns
tPHL
AIn to Bn
3.6
ns
tPLH
Propagation delay
5.2
ns
tPHL
Bn to AOn
5.1
ns
COB
Output capacitance (B0 - B6 only)
6
pF
IOL
Output current (B0 - B6 only)
100
mA
Standby
6.0
I
Supply Current
AIn to Bn (outputs Low or High)
5.1
mA
ICC
Supply Current
Bn to AOn (outputs Low)
13.4
mA
Bn to AOn (outputs High)
10.6
ORDERING INFORMATION
PACKAGE
COMMERCIAL RANGE
VCC = 3.3V±10%; Tamb = 0 to +70°C
DWG
No.
52-pin Plastic Quad Flatpack
FBL22041BB
SOT379-1


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