MAX253ESA+T Maxim Integrated Products, MAX253ESA+T Datasheet - Page 5

IC DRVR TRANSFORMER 8-SOIC

MAX253ESA+T

Manufacturer Part Number
MAX253ESA+T
Description
IC DRVR TRANSFORMER 8-SOIC
Manufacturer
Maxim Integrated Products
Type
Driverr
Datasheet

Specifications of MAX253ESA+T

Number Of Drivers/receivers
1/0
Protocol
RS232, RS485
Voltage - Supply
4.5 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
__________________Pin Configuration
TOP VIEW
GND1
D1
SD
FS
_______________________________________________________________________________________
1
2
3
4
DIP/SO/μMAX
+
MAX253
8
7
6
5
D2
GND2
V
N.C.
CC
Isolated RS-485 Interface
_____________________Pin Description
PIN
Transformer Driver for
1
2
3
4
5
6
7
8
NAME
GND1
GND2
N.C.
V
SD
D1
FS
D2
CC
Open drain of N-channel transformer drive 1.
Ground. Connect both GND1 and GND2
to ground.
Frequency switch. If FS = V
switch frequency = 350kHz; if V
switch frequency = 200kHz.
Shutdown. Ground for normal operation,
connect high for shutdown.
Not internally connected.
5V supply voltage.
Ground. Connect both GND1 and GND2
to ground.
Open drain of N-channel transformer drive 2.
FUNCTION
CC
or open,
FS
= 0V,
5

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