MAX7306
PRODUCTIONSMBus/I²C Interfaced 4-Port, Level-Translating GPIOs and LED Drivers
Low Operating Supply Voltage LED Drivers with Blinking, Transition Detection, and Level Translation in a Very Small Package Ideal for Cellular and Smartphone Applications
- Part Models
- 4
- 1ku List Price
- price unavailable
Part Details
- 1.4V to 5.5V I/O Level Translation Port Supply (VLA)
- 1.62V to 3.6V Power Supply
- Four Individually Configurable GPIO Ports
- P1 = Open-Drain I/O
- P2, P3, P4 = Push-Pull or Open-Drain I/O
- Individual 33-Step PWM Intensity Control
- Blink Controls with 15 Steps on Outputs
- 1kHz PWM Period Provides Flicker-Free LED Intensity Control
- 25mA (max) Port Output Sink Current (100mA max Ground Current)
- Inputs Overvoltage Protected Up to 5.5V (VLA)
- Transition Detection with Optional Interrupt Output
- Optional Input Debouncing
- Active-Low RST Input Clears Serial Interface, Can Restore Power-Up Default State, and Synchronizes Blink Timing
- Oscillator Input and Output Enables Cascading Multiple Devices
- Low 0.75µA (typ) Standby Current
The MAX7306/MAX7307 I²C-/SMBus™-compatible, serial-interfaced peripherals feature four level-translating I/Os and operate from a 1.62V to 3.6V power supply. The MAX7307 features a port supply (VLA) that allows level translation on I/O ports to operate from a separate power supply from 1.4V to 5.5V. The MAX7306 features an address select input (AD0) to allow up to four unique slave addresses.
The MAX7306/MAX7307 ports P2, P3, and P4 can be configured as inputs, push-pull outputs, and open-drain outputs. Port P1 can be configured as a general-purpose input, open-drain output, or an open-drain active-low INT output. Ports P2 and P3 can be configured as OSCIN and OSCOUT, respectively. The MAX7306/MAX7307 include an internal oscillator for PWM, blink, and key debounce, or to cascade multiple MAX7306/MAX7307s. The external clock can be used to set a specific PWM and blink timing. The active-low RST input asynchronously clears the 2-wire interface and terminates a bus lockup involving the MAX7306/MAX7307.
All ports configured as output feature 33-step PWM, allowing any output to be set from fully off, 1/32 to 31/32 duty cycle, to fully on. All output ports also feature LED blink control, allowing blink periods of 1/8 second, 1/4 second, 1/2 second, 1, 2, 4, or 8 seconds. Any port can blink during this period with a 1/16 to 15/16 duty cycle.
The MAX7306/MAX7307 are specified over the -40°C to +125°C temperature range and are available in 10-pin µDFN (2mm x 2mm) and 10-pin µMAX® packages.
Applications
- Cell Phones
- LCD/Keypad Backlights
- LED Status Indicators
- System I/O Ports
Documentation
Data Sheet 1
Design Note 2
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 |
|---|---|---|---|
| MAX7306ALB+ | 10-LFCSP-2X2X0.75 | ||
| MAX7306ALB+T | 10-LFCSP-2X2X0.75 | ||
| MAX7306AUB+ | 10-MINI_SO_EP-N/A | ||
| MAX7306AUB+T | 10-MINI_SO_EP-N/A |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 19, 2018 - 1753N ASSEMBLY |
||
| MAX7306AUB+ | PRODUCTION | |
| MAX7306AUB+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Direct from Battery LED/GPIO Drivers 2 | ||
| 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 |
| Display Driver Electronics 4 | ||
| 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 |
| MAX6964 | PRODUCTION | 17-Output LED Driver/GPO with Intensity Control and Hot-Insertion Protection |
| MAX6965 | PRODUCTION | 9-Output LED Driver with Intensity Control and Hot-Insertion Protection |
| Product 1 | ||
| MAX7302 | SMBus/I²C Interfaced 9-Port, Level-Translating GPIO and LED Driver with CLA | |
Tools & Simulations
Software Development 1
Evaluation Kits
Evaluation Kit/Evaluation System for the MAX7307
Evaluation Kit/Evaluation System for the MAX7307
MAX7306 Evaluation Kit/Evaluation System
MAX7306 Evaluation Kit/Evaluation System
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