FBL2031BB 查看數據表（PDF） - Philips Electronics
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FBL2031BB Datasheet PDF : 16 Pages
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Philips Semiconductors
9-bit BTL 3.3V latched/registered/pass-thru
Futurebus+ transceiver
Product specification
FBL2031
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 10Ω.
• 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 ICC 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
DESCRIPTION
The FBL2031 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 FBL2031 is intended to provide the electrical interface to a high
performance wired-OR bus.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
tPLH
Propagation delay
tPHL
An to Bn
tPLH
Propagation delay
tPHL
Bn to An
CO
Output capacitance (B0 – Bn only)
IOL
Output current (B0 – Bn only)
AIn to Bn (outputs Low or High)
ICC
Supply current
Bn to AOn (outputs Low)
Bn to AOn (outputs High)
TYPICAL
2.7
4.4
4.2
6
100
11
22
18
ORDERING INFORMATION
PACKAGE
52-pin Plastic Quad Flat Pack (PQFP)
VCC = 3.3V±10%; Tamb = –40°C to +85°C
FBL2031BB
UNIT
ns
ns
pF
mA
mA
DWG No.
SOT379-1
2000 Apr 18
2
853-2118 23499
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