sx150x_89b-datasheet

ADVANCED COMMUNICATIONS & SENSING
Rev 4 – 26
th
April 2011 34 www.semtech.com
SX1508B/SX1509B
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
7.3 QFN-UT 28-pin Outline Drawing
QFN-UT 28-pin, 4 x 4 mm, 0.4 mm pitch
Figure 23 - QFN-UT 28-pin Outline Drawing
7.4 QFN-UT 28-pin Land Pattern
Figure 24 - QFN-UT 28-pin Land Pattern