MAX253CSA+T Maxim Integrated Products, MAX253CSA+T Datasheet - Page 7

• Manufacturer Part Number: MAX253CSA+T
• Description: IC DRVR TRANSFORMER 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Driverr

Specifications of MAX253CSA+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)
• Package: 8SOIC N
• Operating Temperature: 0 to 70 °C
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 3. Typical RS-485 Application Circuit, 5V Configuration
V
5V
IN
ON / OFF
RO
DE
DI
*
**
C1
0.1μF
*
*
*
74HC04 OR EQUIVALENT
74HC04
74HC04
74HC04
SEE TABLE 2
4
_______________________________________________________________________________________
SD
GND1
2
MAX253
GND2
V
3.3kΩ
7
390Ω
390Ω
CC
6
D1
D2
FS
3
1
8
1
1
6
5
1CT:1.3CT**
4
ISOLATION
BARRIER
PC410 / 417
PC410 / 417
2
3
PC357T
1N5817
1N5817
Isolated RS-485 Interface
3
4
3
6
5
4
1
0.1μF
Transformer Driver for
C3
390Ω
3.3kΩ
C2
22μF
8
3.3kΩ
IN
SET
4
3
1
6
MAX667
DI
DE
RO
GND
RE
4
MAX481
MAX483
MAX485
MAX487
2
SHDN
8
V
CC
OUT
5
GND
5
2
A
B
C4
22μF
6
7
ISO 5V
485
I/O
7