MAX7313
PRODUCTION16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
8- and 16-Port I/O Expanders with IRQ and Low Standby Current Ideal for Portable Applications
- Part Models
- 4
- 1ku List Price
- Starting From $3.22
Part Details
- 400kbps, 2-Wire Serial Interface, 5.5V Tolerant
- 2V to 3.6V Operation
- Overall 8-Bit PWM LED Intensity Control
- Global 16-Step Intensity Control
- Individual 16-Step Intensity Controls
- Two-Phase LED Blinking
- High Output Current (50mA max Per Port)
- Outputs are 5.5V-Rated Open Drain
- Supports Hot Insertion
- Inputs are Overvoltage Protected to 5.5V
- Transition Detection with Interrupt Output
- 1.2µA (typ), 3.6µA (max) Standby Current
- Small 4mm x 4mm TQFN Package
- -40°C to +125°C Temperature Range
- All Ports Can Be Configured as Inputs or Outputs
The MAX7313 I²C-compatible serial interfaced peripheral provides microprocessors with 16 I/O ports. Each I/O port can be individually configured as either an open-drain current-sinking output rated at 50mA and 5.5V, or a logic input with transition detection. A 17th port can be used for transition detection interrupt, or as a general-purpose output. The outputs are capable of driving LEDs, or providing logic outputs with external resistive pullup up to 5.5V.
PWM current drive is integrated with 8 bits of control. Four bits are global control and apply to all LED outputs to provide coarse adjustment of current from fully off to fully on with 14 intensity steps. Each output then has individual 4-bit control, which further divides the globally set current into 16 more steps. Alternatively, the current control can be configured as a single 8-bit control that sets all outputs at once.
Each output has independent blink timing with two blink phases. All LEDs can be individually set to be on or off during either blink phase, or to ignore the blink control. The blink period is controlled by a register.
The MAX7313 supports hot insertion. All port pins, the active-low INT output, SDA, SCL, and the slave-address inputs AD0-2 remain high impedance in power-down (V+ = 0V) with up to 6V asserted upon them.
The MAX7313 is controlled through the 2-wire I²C/SMBus serial interface, and can be configured to any one of 64 I²C addresses.
Applications
- Keypad Backlights
- LCD Backlights
- LED Status Indication
- Notebook Computers
- Portable Equipment
- RGB LED Drivers
Documentation
Data Sheet 1
Reliability Data 1
Design Note 1
Technical Articles 3
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX7313AEG+ | 24-QSOP-150_MIL | ||
| MAX7313AEG+T | 24-QSOP-150_MIL | ||
| MAX7313ATG+ | 24-TQFN-4X4X0.75 | ||
| MAX7313ATG+T | 24-TQFN-4X4X0.75 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 20, 2016 - 1612 ASSEMBLY |
||
| MAX7313ATG+ | PRODUCTION | |
| MAX7313ATG+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Direct from Battery LED/GPIO Drivers 9 | ||
| MAX7315 | PRODUCTION | 8-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection |
| MAX7312 | PRODUCTION | 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection |
| MAX7300 | PRODUCTION | 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander |
| MAX7301 | PRODUCTION | 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander |
| MAX7310 | PRODUCTION | 2-Wire-Interfaced 8-Bit I/O Port Expander with Reset |
| MAX7311 | PRODUCTION | 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection |
| MAX7314 | PRODUCTION | 18-Port GPIO with LED Intensity Control, Interrupt, and Hot-Insertion Protection |
| MAX7317 | PRODUCTION | 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection |
| MAX7318 | PRODUCTION | 2-Wire-Interfaced, 16-Bit, I/O Port Expander with Interrupt and Hot-Insertion Protection |
| Display Driver Electronics 4 | ||
| MAX6965 | PRODUCTION | 9-Output LED Driver with Intensity Control and Hot-Insertion Protection |
| MAX6964 | PRODUCTION | 17-Output LED Driver/GPO with Intensity Control and Hot-Insertion Protection |
| MAX6956 | PRODUCTION | 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port LED Display Driver and I/O Expander |
| MAX6957 | PRODUCTION | 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander |
| Product 1 | ||
| MAX7316 | 10-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection | |
Tools & Simulations
Software Development 1
Evaluation Kits
Evaluation Kit for the MAX7313
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