FEATURES(1). Operation Frequency
Internal clock or PLL with 6MHz crystal oscillator.
Internal clock accuracy within 0.2% for USB application
24MHz for CPU clock
(2). On-Chip Memory
16k x 8 internal program MASK-ROM
Internal RAM 256 bytes and external XRAM up to 320 bytes
(3). USB interface
Compliance with Universal Serial Bus specification v2.0 Full Speed
Built-in USB Transceiver, 3.3V regulator
Software Control USB pull-up resister
Support USB Suspend /Resume and Remote Wakeup function
Endpoint 0: Control SETUP transfer (8 bytes)
Endpoint 0: Control IN/OUT transfer (64 bytes)
Endpoint 1: BULK-IN transfer with Ping-Pong feature (2*64 bytes)
Endpoint 2: BULK-OUT transfer with Ping-Pong feature (2*64 bytes)
Endpoint 3: INTERRUPT IN transfer (8 bytes)
(4). SPI Interface
Mode0, 1, 2, 3
Master mode
Clock Rate up to 12Mbps
Read DMA (up to 64 bytes per time)
Write DMA (up to 64 bytes per time)
(5). Reset Controller
Power On Reset
Watch-Dog Timer
(6). I/O Ports
Max. 8 GPIOs to flexible application
2 external Interrupts with wakeup function
(7). Die Form / Customer Request