MAX7323AEE+T by Analog Devices

I²C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os

Status: Active
Series: MAX7323
RoHS: Unknown
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The MAX7323 2-wire serial-interfaced peripheral features eight I/O ports. Four ports are push-pull outputs and the other four are open-drain I/O ports that are overvoltage protected up to +6V independent of the supply voltage. The four I/O ports configured as inputs are continuously monitored for state changes (transition detection). State changes are indicated by the open-drain active-low INT output. The interrupt is latched, allowing detection of transient changes. When the MAX7323 is subsequently accessed through the serial interface, any pending interrupt is cleared. The four push-pull and four open-drain outputs are rated to sink 20mA and are capable of driving LEDs. The active-low RST input clears the serial interface, terminating any I²C communication to or from the MAX7323. The MAX7323 uses two address inputs with four-level logic to allow 16 I²C slave addresses. The slave address also determines the power-up logic state for the I/O ports, and enables or disables internal 40kΩ pullups for the input ports in groups of two ports. The MAX7323 is one device in a family of pin-compatible port expanders with a choice of input ports, open-drain I/O ports, and push-pull output ports (see Table 1 in the full data sheet). The MAX7323 is available in 16-pin QSOP and 16-pin TQFN packages, and is specified over the automotive temperature range (-40°C to +125°C).

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Prices starting from US$3.23

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Features

400kHz I²C Serial Interface
+1.71V to +5.5V Operating Voltage
4 Push-Pull Output Ports Rated at 20mA Sink Current
4 Open-Drain I/O Ports Rated to 20mA Sink Current
4 I/O Ports Are Overvoltage Protected to +6V
Transient Changes Are Latched, Allowing Detection Between Read Operations
Active-Low INT Output Alerts Change on Inputs
AD0 and AD2 Inputs Select from 16 Slave Addresses
Low 0.6µA (typ) Standby Current
-40°C to +125°C Operating Temperature Range

Specifications

Interface Serial - I2C CompatibleSerial 2-Wire 400kbit
Outputs 4
I/O 4
Reset Input Yes
Interrupt Output Yes
Over Voltage Protection (V) 6
Drive Current (mA) 25
VSUPPLY (V) (min) 1.71
VSUPPLY (V) (max) 5.5
Package/Pins QSOP/16TQFN/16
BudgetaryPrice (See Notes) 1.98

Last 6 months Inventory & Pricing History

MAX7323AEE+T Drivers & Interfaces by Analog Devices

I/O EXPANDER, I2C, 4PORT, 400KHZ, QSOP16

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

Specifications

Bus Frequency 400kHz
IC Interface Type I2C
Supply Voltage Min 1.71V
Supply Voltage Max 5.5V
Interface Case Style QSOP
No. of Pins 16Pins
No. of I/O s 4I/O s
RoHS Compliant Yes

Last 6 months Inventory & Pricing History

Alternative Descriptions

I/O Expander, I2C, 4Port, 400Khz, Qsop16 | Newark Electronics

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This part has not been flagged as RoHS Compliant.

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