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RS232-TTL module MAX3232

Convert levels of RS232(+12V/-12V) to TTL(3V/5V) UART easily with this bidirectional level converter suitable for baud rates up to 115 Kbps.

RS232-TTL module MAX3232

Sunrom Part# 4691

Available We dispatch same day if ordered by 4PM (excluding holidays), then courier usually takes 2-5 days.
Real Time Availability
Ready Stock: 51 nos.
Factory Leadtime for more quantity: 15 days
Quantity Pricing
Quantity :
Price (Discount%)
1-4 :
Rs.47.00/- (0%)
5-9 :
Rs.45.59/- (3%)
10-24 :
Rs.43.71/- (7%)
25-49 :
Rs.42.30/- (10%)
50-74 :
Rs.41.36/- (12%)
75-99 :
Rs.39.95/- (15%)
100-249 :
Rs.38.54/- (18%)
250-499 :
Rs.37.60/- (20%)
500-999 :
Rs.36.66/- (22%)
1000+ :
Rs.35.25/- (25%)


  • Driver: MAX3232CSE (Equivalent to MAX232 but can also operate at lower voltage)
  • Voltage Range: 3V to 5V
  • Maximum baud rate: 115 Kbps
  • Board Size: 9.4mm * 15.9mm

The driver IC used is MAX3232CSE that is pin to pin equivalent to MAX232 but can also operate at lower voltage at lower capacitor values.
The power pins +/- are given on both sides of board which are connected to each other on PCB, You can use any one side of it to power the board.
The arrow on PCB indicate the signal flow of serial data.

The ‘must have’ board for TTL/RS323 projects! This is the RS232 converter IC that is capable of running at 3V and communicating with 5V logic. Since MAX3232 operates at a broader voltage range than the 232 (3 - 5.5V) you can use this on both your 3.3 and 5V projects!

Click here for manufacturer product page and datasheet.

Board Schematic

Typical Use

Convert microcontroller UART/USART to RS232 level signals.

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