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I2C LCD Backpack - PCF8574

Convert any standard 16 pin LCDs like 8x1, 8x2, 16x2, 16x4 and 20x4 LCDs with this I2C backpack. Easy to use and occupies just 2 MCU I/O.

Sunrom Part# 4585

Available We dispatch same day if ordered by 4PM (excluding holidays), then courier usually takes 2-5 days.
Real Time Availability
Ready Stock: 2 nos.
Factory Leadtime for more quantity: 15 days
Quantity Pricing
Quantity :
Price (Discount%)
1-4 :
Rs.98/- (0%)
5-9 :
Rs.95/- (3%)
10-24 :
Rs.91/- (7%)
25-49 :
Rs.88/- (10%)
50-74 :
Rs.86/- (12%)
75-99 :
Rs.83/- (15%)
100-249 :
Rs.80/- (18%)
250-499 :
Rs.78/- (20%)
500-999 :
Rs.76/- (22%)
1000+ :
Rs.74/- (25%)

Board Schematic

With the I2C address setting, you can run multiple LCDs on same I2C bus. (With all jumpers off the default address is 0x27)

Dimensions: 41.5mm (length) * 19mm (width) * 15.3mm (H)

Board Operating voltage: 2.5V to 6V (If your LCD only works on 5V then you should use only 5V)

LCD Pin vs PCF8574A Pin Mapping

BL-EN-RW-RS-D4-D5-D6-D7  =  3-2-1-0-4-5-6-7

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Sunrom Electronics & Sunrom Technologies are two companies, that are the foremost online e-commerce stores since 2004, providing innovative embedded systems, components & services. Our aim is to empower you to Make In India. We work closely with electronics manufacturing companies & individuals to understand & solve the challenges faced during production. We do not just sell things, We use them ourselves in our products, and provide you with high quality tested components for trouble free experience.

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