EXPAND 7 Click
PID: MIKROE-4244
EXPAND 7 Click is a compact add-on board that contains a multi-port I/O expander with bidirectional input/outputs or PWM outputs. This board features the CY8C9540A, 40-bit I/O port
expander with EEPROM and 8 independently configurable 8-bit PWM outputs from Infineon. The
CY8C9540A operates as two I2C slave devices, first as a multi-port I/O expander, and second as
a serial EEPROM with 11 Kbyte address space. It has a user default storage, flexible I2C
address configuration, and a programmable interrupt and reset function. This Click board™ can
be used to monitor and control LEDs and system intrusion detection devices, but also as a
storage for information such as error codes or board manufacturing data for diagnostic
purposes.
EXPAND 7 Click is supported by a mikroSDK compliant library, which includes functions that
simplify software development. This Click board™ comes as a fully tested product, ready to be
used on a system equipped with the mikroBUS™ socket.
Specifications
Type
Port expander
Applications
Can be used to monitor and control LEDs and
system intrusion detection devices, but also as
a storage for information such as error codes
or board manufacturing data for diagnostic
purposes.
On-board modules
EXPAND 7 Click is based on the CY8C9540A,
40-bit I/O expander with EEPROM, and 8
independently configurable 8-bit PWM outputs
from Cypress Semiconductor.
Key Features
20-bit, 100kHz I2C port expander, flexible I2C
address configuration, internal 3Kbyte
EEPROM, user default storage, and more.
Interface
I2C
ClickID
No
Compatibility
mikroBUS™
Click board size
L (57.15 x 25.4 mm)
Input Voltage
3.3V or 5V
Resources
mikroBUS™
mikroSDK
Click board™ Catalog
Click boards™
Downloads
EXPAND 7 click 2D and 3D files
CY8C9540A datasheet
EXPAND 7 click example on Libstock
EXPAND 7 click schematic
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