Key features and benefits
- Single supply GPIO expander supporting operating power supply voltage range of 1.65 V to 5.5 V operation
- Serial to parallel (SDA to P0-P16) and parallel to serial (P0-P16) conversion with I²C protocol
- Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
- Low power consumption of 2.5 µA maximum
- 400 kHz operation (FM I²C mode)
- 5 V tolerant I/Os and 16 I/Os pins which defaults to 16 inputs
- Glitch free Power up with all channels configured as inputs with weak pull-up resistors
- Latched outputs with 25 mA drive maximum capability for directly driving LEDs
- Polarity Inversion Register
- External RESET pin to reset state machine and internal registers
- Noise filters on SCL and SDA inputs
- Package offered : TSSOP24 and HWQFN24
- Specified from -40 °C to +85 °C and -40 °C to +125 °C
Key applications
- Servers and routers
- TV and hardware control monitors
- Gaming consoles and drones
- Battery powered applications
- Automotive applications (ADAS, VCU, DCU and BCM)
- Surveillance cameras
- Telecomm equipment
Parametric search
I²C General-Purpose I/O (GPIO)
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Products
| Type number | Description | Status | Quick access |
|---|---|---|---|
| NCA9535 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | ACT |
|
| NCA9535BY | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | Production | |
| NCA9535BY-Q100 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | Production | |
| NCA9535PW | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | Production | |
| NCA9535PW-Q100 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | Production | |
| NCA9535-Q100 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | ACT |
|
| NCA9535BY-Q100 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | Production | |
| NCA9535PW-Q100 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | Production | |
| NCA9539PW-Q100 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers | ACT |
|
| NCA9539BY-Q100 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers | Production | |
| NCA9539PW-Q100 | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers | Production | |
| NCA9555-Q100 | Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers | ACT |
|
| NCA9555BY-Q100 | Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers | Production | |
| NCA9555PW-Q100 | Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers | Production | |
| NCA6416BY | Development | ||
| NCA6416BY-Q100 | Development | ||
| NCA6416PW | Development | ||
| NCA6416PW-Q100 | Development | ||
| NCA9539BY | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers | Production | |
| NCA9539PW | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers | Production | |
| NCA9555BY | Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers | Production | |
| NCA9555PW | Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers | Production | |
| NCA9595PW | Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output, configuration registers and programmable pull-up resistors | Production | |
| NCA9595PW-Q100 | Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output, configuration registers and programmable pull-up resistors | Production | |
| PCA9535PW | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers | Production | |
| PCA9539PW | Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers | Production | |
| PCA9555PW | Low-voltage 16-bit I²C-bus I/O port with interrupt and weak pull-up | Production |
Visit our documentation center for all documentation
Leaflet (1) |
|||
|---|---|---|---|
| File name | Title | Type | Date |
| Leaflet_SOT8065_Minilogic.pdf | Leaflet_SOT8065 Minilogic | Leaflet | 2024-11-15 |
Outline 3d (1) |
|||
| File name | Title | Type | Date |
| sot355-1_3d.png | plastic, thin shrink small outline package; 24 leads; 0.65 mm pitch; 7.8 mm x 4.4 mm x 1.1 mm body | Outline 3d | 2021-06-10 |
Software (2) |
|||
| File name | Title | Type | Date |
| NCA95XX_EVB_Software.zip | NCA95XX EVB GUI | Software | 2023-03-12 |
| NCA95XX_Arduino_Sketches.zip | NCA95XX Arduino™ Sketch Examples | Software | 2023-03-12 |
User manual (2) |
|||
| File name | Title | Type | Date |
| UM90016.pdf | NCA95xx GPIO expander EVB (Arduino™ shield compatible) | User manual | 2024-02-23 |
| UM90017.pdf | NCA95XX Evaluation Board: Quick-Start Guide | User manual | 2023-01-18 |
Please contact us if you have any questions. If you are in need of design support, please fill in the technical support form, we will get back to you shortly.
Please visit our community forum or contact us for further support.