Datasheet

 
    
SLLS447C − OCTOBER 2000 − REVISED AUGUST 2008
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description (continued)
These devices are optimized for balanced multipoint bus transmission at signalling rates up to 30 million bits
per second. The transmission media may be printed-circuit board traces, backplanes, or cables. The ultimate
rate and distance of data transfer is dependent upon the attenuation characteristics of the media and the noise
coupling to the environment.
Each driver features current limiting and thermal-shutdown circuitry making it suitable for high-speed mulitpoint
data transmission applications in noisy environments. These devices are designed using LinBiCMOSt,
facilitating low power consumption and robustness.
The G and G
inputs provide driver enable control using either positive or negative logic. When disabled or
powered off, the driver outputs present a high-impedance to the bus for reduced system loading.
The SN75LBC172A is characterized for operation over the temperature range of 0°C to 70°C. The
SN65LBC172A is characterized over the temperature range from –40°C to 85°C.
AVAILABLE OPTIONS
PACKAGE
T
A
16-PIN PLASTIC
SMALL OUTLINE
†
(JEDEC MS-013)
20-PIN PLASTIC
SMALL OUTLINE
†
(JEDEC MS-013)
16-PIN PLASTIC
THROUGH-HOLE
(JEDEC MS-001)
0°C to 70°C
SN75LBC172A16DW SN75LBC172ADW SN75LBC172AN
0°C to 70°C
Marked as 75LBC172A
−40°C to 85°C
SN65LBC172A16DW SN65LBC172ADW SN65LBC172AN
−40°C to 85°C
Marked as 65LBC172A
†
Add R suffix for taped and reeled version.
FUNCTION TABLE
(EACH DRIVER)
INPUT
ENABLES OUTPUTS
A G G Y Z
L H X L H
L X L L H
H H X H L
H X L H L
OPEN H X H L
OPEN X L H L
H OPEN X H L
L OPEN X L H
X L H Z Z
X L OPEN Z Z
H = high level, L = low level, X = irrelevant,
Z = high impedance (off)