MAX7315ATE+ by Analog Devices

8-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection

Status: Active
Series: MAX7315
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX7315 I²C-/SMBus™-compatible serial interfaced peripheral provides microprocessors with 8 I/O ports. Each I/O port can be individually configured as either an open-drain current-sinking output rated at 50mA at 5.5V, or a logic input with transition detection. A ninth port can be used for transition detection interrupt or as a general-purpose output. The outputs are capable of directly 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 in 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. The MAX7315 is pin and software compatible with the PCA9534 and PCA9554(A). 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 MAX7315 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 MAX7315 is controlled through the 2-wire I²C/SMBus serial interface, and can be configured to one of 64 I²C addresses.

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Prices starting from US$1.14

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Features

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 Plus Individual 16-Step Intensity Control
Global 16-Step Intensity Control
Plus Individual 16-Step Intensity Control
Automatic Two-Phase LED Blinking
50mA Maximum Port Output Current
Outputs Are 5.5V-Rated Open Drain
Inputs Are Overvoltage Protected to 5.5V
Transition Detection with Interrupt Output
Low Standby Current (1.2µA typ; 3.3µA max)
Tiny 3mm x 3mm, Thin QFN Package
-40°C to +125°C Temperature Range
All Ports Can Be Configured as Inputs or Outputs

Specifications

Interface Serial 2-Wire 400kbit
Outputs 1
I/O 8
Interrupt Output Yes
Over Voltage Protection (V) 5.5
Drive Current (mA) 50
VSUPPLY (V) (min) 2
VSUPPLY (V) (max) 3.6
Package/Pins QSOP/16TQFN/16TSSOP/16
BudgetaryPrice (See Notes) 1.8

Last 6 months Inventory & Pricing History

MAX7315ATE+ Semiconductors - ICs by Analog Devices

I/O EXPANDER I2C SMBUS 8PORT TQFN-16

Semiconductors - ICs
> Drivers & Interfaces
> I/O Expanders
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Chip Configuration -
Bus Frequency 400kHz
IC Interface Type I2C SMBus
Supply Voltage Min 2V
Supply Voltage Max 3.6V
Interface Case Style TQFN
No. of Pins 16Pins
No. of I/O's 8I/O's
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

I/O Expander, I2C, Smbus, 8Port, Tqfn-16 | Newark Electronics
I/O EXPANDER, I2C, SMBUS, 8PORT, TQFN-16 | element14

Frequently Asked Questions

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Is the MAX7315ATE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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