產品資訊
1-T 8051 CPU Core
16K bytes of on-chip Flash program memory with ISP/IAP function
256 bytes internal scratch-pad RAM and 576bytes on-chip expanded RAM (XRAM)
Dual DPTR (Data Pointer register)
Four and half configurable I/O ports
Three 16-bit Timers
Enhanced UART
Two-priority-level interrupt structure
Additional external interrupts, INT2 and INT3
Keypad interrupt (P0)
Wake-up from power-down mode
Serial Peripheral Interface (SPI)
2-wire Serial Interface (TWSI)
One-time-enabled Watch-dog Timer (WDT)
Programmable system clock
USB specification 2.0 and 1.1 compliant
Built in full speed (12Mbps) USB transceiver
Intel 8X931 like USB control flow
One 256 bytes FIFO for USB endpoint-shared buffer- Maximum 64 bytes data for EP0 control-in/out buffer
- Maximum 64 bytes data for EP1 bulk/interrupt-in buffer
- Maximum 64 bytes data for EP2 bulk/interrupt/isochronous-in buffer, it could be configured to two 32 bytes dual-buffer-mode in bulk and isochronous operating.
- Maximum 64 bytes data for EP3 bulk/interrupt/isochronous-out buffer, it could be configured to two 32 bytes dual-buffer-mode in bulk and isochronous operating. Additionally, it also can be configured to an interrupt-in buffer on EP3 function.
Supports USB suspend/resume and remote wake-up
Software-controlled USB connection/disconnection mechanism
Support USB DFU (Device Firmware Update), EasyCOM , EasyPOD
Power saving modes :
Idle mode
Power-down mode
Operating condition :
Operating voltage: 2.4 ~ 5.5V on VDD_IO, 2.7V ~ 3.6V on VDD_Core and VDD_PLL, 3.0V~3.6V on VDDA.
Operating speed range: DC to 24MHz @VCC>3.0V
