MAX7304PMB1 Datasheet, PDF (1/8 Pages) Maxim Integrated Products – MAX7304PMB1 Peripheral Module

19-6327; Rev 0; 5/12
MAX7304PMB1 Peripheral Module
General Description
The MAX7304PMB1 peripheral module provides the
necessary hardware to interface the MAX7304 16-port
GPIO and LED driver to any system that utilizes
PmodK-compatible expansion ports configurable for
I²C communication. The IC features 16 GPIO ports
with 12 push-pull GPIOs and four open-drain GPIOs
configurable as PWM-controlled LED drivers. The device
supports a 1.62V to 3.6V separate power supply for level
translation. Each GPIO can be programmed to one of
the two externally applied logic voltage levels. PORT12–
PORT15 can also be configured as LED drivers that
feature constant-current sinks and PWM intensity control
with the internal oscillator. The maximum constant-
current level for each open-drain LED port is 20mA. The
intensity of the LED on each open-drain port can be indi-
vidually adjusted through a 256-step PWM control. The
port also features LED fading.
Refer to the MAX7304 IC data sheet for detailed informa-
tion regarding operation of the IC.
Ordering Information appears at end of data sheet.
Features
S Four LED Driver Pins on PORT12–PORT15
S 256-Step PWM Individual LED Intensity-Control
Accuracy
S Individual LED Blink Rates and Common LED
Fade-In/Out Rates
S Individually Programmable GPIOs to Two Logic
Levels
S 8-Channel Individual Programmable Level
Translators
S Configurable Edge-Triggered Port Interrupt
S Jumper-Selectable I²C Address Setting
S 6-Pin Pmod-Compatible Connector (I²C)
S Secondary Header Allows Daisy-Chaining of
Additional Modules on I²C Bus
S Example Software Written in C for Portability
S RoHS Compliant
S Proven PCB Layout
S Fully Assembled and Tested
MAX7304PMB1 Peripheral Module
Pmod is a trademark of Digilent Inc.
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