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Features:

• Meets or exceeds EIA-422B and RS-485 requirements
• Suited for single-point or multipoint bus transmission
• Common mode input voltage from 0 to 30V
• Differential input voltages from 0 to 30V
• Differential input switching threshold < 200mV
• Failsafe output for floating, shorted and terminated inputs
• Three-state output
• Fully compatible with LS7272 series line drivers
• Pin compatible with SN65175 and SN75175 receivers
• 5V supply
• Available in SOIC-16 and TSSOP-16

Description:

LS7372 is a monolithic CMOS quadruple differential line receiver with 3-state outputs. The receivers meet the specifications of EIA-422B and RS-485 in respect of balanced multipoint bus transmission at rates up to 10Mbits/s. Each of the two pairs of receivers have a separate enable input. The receivers feature high input impedance and input hysteresis for increased noise immunity. The inputs have differential threshold of 200mV over the common-mode input range of 0 to 30V allowing it to be effective complement of LS7272 series of line drivers. LS7372 is fully pin compatible with SN65175 and SN75175 line drivers for direct replacements.

Failsafe operation of LS7372 allows its application in multipoint bus transmission by switching the output to logic high whenever the inputs are shorted or open for cases of either terminated or un-terminated inputs. In multipoint bus connection the failsafe operation is necessitated by the fact that individual drivers take turn in getting hold of the bus with float state of the bus while switching control from one driver to another. The high state of the receiver output in this condition allows for correct start bit at the beginning of transmission.
Code
Package
Notes

P/N

RoHS Compliant Standard plastic DIP

1, 2, 3

P/N – S

RoHS Compliant Standard SOIC

1, 2, 3, 4

P/N – SW

RoHS Compliant Widebody SOIC option

1, 2, 3, 4

P/N – S14

RoHS Compliant 14-pin SOIC version of 8-pin part

1, 2, 3, 4

P/N – TS

RoHS Compliant TSSOP

1, 2, 3, 4

P/N – TS24

RoHS Compliant 24-pin TSSOP version of 20-pin part

1, 2, 3, 4

Example: LSxxxx-TS = the LSxxxx in the RoHS Compliant TSSOP package-type

Note 1: See Table for package body widths

Note 2: Package outline drawings conform to JEDEC standards

Note 3: Packages shipped in anti-static tubes

Note 4: Tape and Reel option available. Contact factory for details

ADDITIONAL ORDERING OPTIONS:

Probed Wafers (P/N-PW), Waffle Packed Die (P/N-WP)

Package Body Widths
# of Pins
P/N, -C, -CM
mils
-S
mils
-SW
mils
-TS
mils

8

300

150

14

300

150

173

16

300

150

300

173

18

300

300

20

300

300

173

24

600

300

173

28

600

300

173

38

173

40

600

48

240