USBF129, a USB Firmware memory chip, is a companion to the Microchip Automotive USB Smart Hub devices: USB84604 and USB84602. It is factory pre-programmed with version 129 of the binary firmware, which contains application firmware and default hub configuration settings. The USBF129 memory function assures proper functionality, providing for decreased development time and engineering resource, and overall faster time to market. Full custom programming alternatives are available upon request.
The USB Firmware memory family features a four-wire, SPI-compatible interface that allows for a low pin-count package, which occupies less board space and ultimately lowers total system costs. It is manufactured with proprietary,
high-performance CMOS SuperFlash technology.
The split-gate cell design and thick-oxide tunneling
injector attain better reliability and manufacturability
compared with alternate approaches.
Preprogrammed with binary image129 for automotive usage. See “FlexConnect Firmware for USB84604” application note for complete feature set
Targeted for USB 2.0 High-Speed infotainment applications including:
Integration with head unit systems
First, second, and third row USB media hubs
512 KByte (4 Mbit) memory size
Single Voltage Read and Write Operations- 2.7–3.6V
Serial Interface Architecture- SPI Compatible: Mode 0 and Mode 3
Read Support: Dual Input/Output I/O
High Speed Clock Frequency up to 30 MHz
Endurance: 100,000 Cycles (typical)
Greater than 20 years Data Retention
Low Power Consumption:
Active Read Current: 5 mA (typical)
Standby Current: 5 µA (typical)
Power-down Mode: 3µA (typical)
Flexible Erase Capability
Uniform 4 KByte sectors
Uniform 64 KByte overlay blocks
Fast Erase and Byte-Program:
Sector-Erase Time: 40 ms (typical)
Byte-Program Time: 4 ms/256 bytes (typical)
Page Program Mode - 256 Bytes/Page
End-of-Write Detection- Software polling the BUSY bit in Status Register
Hold Pin (HOLD#)- Suspends a serial sequence to the memorywithout deselecting the device
Write Protection (WP#)- Enables/Disables the Lock-Down function of the status register
Software Write Protection- Write protection through Block-Protection bits instatus register
The MPLAB® PM3 Universal Device Programmer is easy to use and operates with a PC or as a stand-alone unit, and programs Microchip's entire line of PIC® devices as well as the latest dsPIC® DSC devices. When used standalone, data can be loaded and saved with the SD/MMC card (not included).