FBL22031BB 查看數據表（PDF） - Philips Electronics

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FBL22031BB

9-bit BTL 3.3V latched/registered/pass-thru Futurebus+ transceiver with 30Ω termination

Philips Electronics 

Philips Semiconductors

9-bit BTL 3.3V latched/registered/pass-thru

Futurebus+ transceiver with 30Ω termination

Product specification

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 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

• Same pinout and function as the FBL2033 except for 30Ω series

termination

• The A output includes a a series resistor of 30Ω making external

terminating resistors unnecessary

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 30Ω 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.

QUICK REFERENCE DATA

SYMBOL

tPLH

tPHL

tPLH

tPHL

CO

IOL

ICC

PARAMETER

Propagation delay

An to Bn

Propagation delay

Bn to An

Output capacitance (B0 – Bn only)

Output current (B0 – Bn only)

AIn to Bn (outputs Low or High)

Supply current

Bn to AOn (outputs Low)

Bn to AOn (outputs High)

TYPICAL

2.7

4.4

4.2

6

100

11

22

18

UNIT

ns

ns

pF

mA

mA

ORDERING INFORMATION

PACKAGE

52-pin Plastic Quad Flat Pack (PQFP)

VCC = 3.3V±10%; Tamb = –40°C to +85°C

FBL22031BB

DWG No.

SOT379-1

2000 Apr 18

2

853-2119 23499

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