CD3207BB View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
CD3207BB Datasheet PDF : 14 Pages
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Philips Semiconductors
7-bit Futurebus+ transceiver
Product specification
FB2041
DESCRIPTION
The FB2041 is a 7-bit bidirectional BTL transceiver and is intended
to provide the electrical interface to a high performance wired-OR
bus. The FB2041 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.
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.
• 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 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
QUICK REFERENCE DATA
SYMBOL
PARAMETER
tPLH
Propagation delay
tPHL
AIn to Bn
tPLH
Propagation delay
tPHL
Bn to AOn
COB
Output capacitance (B0 - B6 only)
IOL
Output current (B0 - B6 only)
Standby
ICC
Supply Current
AIn to Bn (outputs Low or High)
Bn to AOn (outputs Low)
Bn to AOn (outputs High)
TYPICAL
3.7
2.7
3.4
3.2
6
100
19
40
22
19
UNIT
ns
ns
pF
mA
mA
ORDERING INFORMATION
PACKAGE
52-pin Plastic Quad Flatpack
COMMERCIAL RANGE
VCC = 5V±10%; Tamb = 0 to +70°C
FB2041BB
INDUSTRIAL RANGE
VCC = 5V±10%; Tamb = -40 to +85°C
CD3207BB
DWG
No.
SOT379-1
1995 May 25
2
853-1561 15279
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