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参数资料
| 型号： | CD3207 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | 7-bit Futurebus transceiver |
| 中文描述： | 7位Futurebus收发器 |
| 文件页数： | 2/14页 |
| 文件大小： | 148K |
| 代理商： | CD3207 |
Philips Semiconductors
Product specification
FB2041
7-bit Futurebus+ transceiver
2
1995 May 25
853-1561 15279
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 10
.
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
QUICK REFERENCE DATA
SYMBOL
t
PLH
t
PHL
t
PLH
t
PHL
C
OB
I
OL
PARAMETER
TYPICAL
3.7
2.7
3.4
3.2
6
100
19
40
22
19
UNIT
Propagation delay
AIn to Bn
Propagation delay
Bn to AOn
Output capacitance (B0 - B6 only)
Output current (B0 - B6 only)
ns
ns
pF
mA
Standby
AIn to Bn (outputs Low or High)
Bn to AOn (outputs Low)
Bn to AOn (outputs High)
I
CC
Supply Current
mA
ORDERING INFORMATION
PACKAGE
COMMERCIAL RANGE
V
CC
= 5V
±
10%; T
amb
= 0 to +70
°
C
FB2041BB
INDUSTRIAL RANGE
V
CC
= 5V
±
10%; T
amb
= -40 to +85
°
C
CD3207BB
DWG
No.
SOT379-1
52-pin Plastic Quad Flatpack
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