Advanced Universal Serial Bus transceivers - Application: PDA, mobile phone, DSC ; Bus interface: USB at full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s) data transfer rates ; Features: allows selectable differential or single-ended input mode; voltage regulator 5.0 V-to-3.3 V ; Operating/supply voltage (MAX.-Vcc,Vp,VDD): dual supply: main 3.0 to 3.6 V, digital I/O I/F 1.65 V to 3.6 V V
A good PCB layout is crucial for the ISP1105W-T. Ensure a solid ground plane, keep the USB traces short and away from noise sources, and use a common mode filter (CMF) or a ferrite bead to reduce EMI. Refer to NXP's application note AN11873 for more details.
The ISP1105W-T has an integrated power management unit (PMU). Use the PMU to control the power modes (e.g., suspend, resume) and voltage regulators. The device can also be powered from a single 5V supply or a battery. Consult the datasheet and application notes for specific power management guidelines.
The ISP1105W-T supports USB 2.0 High-Speed (480 Mbps) and Full-Speed (12 Mbps) modes. However, it does not support USB 3.0 or higher speeds. Additionally, the device has a limited number of endpoints (4 IN, 4 OUT) and a maximum packet size of 512 bytes.
Use a secure and reliable firmware update mechanism, such as DFU (Device Firmware Update) or a custom solution using the ISP1105W-T's I2C or SPI interfaces. Ensure that the update process is atomic and uses checksum verification to prevent corruption. Consult NXP's application notes and firmware update guidelines for more information.
The ISP1105W-T has a maximum junction temperature (Tj) of 125°C. Ensure good thermal design practices, such as using a heat sink or thermal pad, to keep the device within the recommended operating temperature range (–40°C to 85°C). Consult the datasheet and thermal design guidelines for more information.
ISP1105W-T datasheet
by NXP Semiconductors
