C8051F349-GM
数据手册.pdf8位微控制器 -MCU 8051 25 MHz 32 kB 8-bit MCU
Analog Peripherals
\- 10-Bit ADC C8051F340/1/2/3/4/5/6/7/A/B only
• Up to 200 ksps
• Built-in analog multiplexer with single-ended and differential mode
• VREF from external pin, internal reference, or VDD
• Built-in temperature sensor
• External conversion start input option
\- Two comparators
\- Internal voltage reference C8051F340/1/2/3/4/5/6/7/A/B only
\- Brown-out detector and POR Circuitry
USB Function Controller
\- USB specification 2.0 compliant
\- Full speed 12 Mbps or low speed 1.5 Mbps operation
\- Integrated clock recovery; no external crystal required for
full speed or low speed
\- Supports eight flexible endpoints
\- 1 kB USB buffer memory
\- Integrated transceiver; no external resistors required
On-Chip Debug
\- On-chip debug circuitry facilitates full speed, non-intru
sive in-system debug No emulator required
\- Provides breakpoints, single stepping,
inspect/modify memory and registers
\- Superior performance to emulation systems using
ICE-chips, target pods, and sockets
Voltage Supply Input: 2.7 to 5.25 V
\- Voltages from 3.6 to 5.25 V supported using On-Chip
Voltage Regulator
HIgh Speed 8051 µC Core
\- Pipelined instruction architecture; executes 70% of
Instructions in 1 or 2 system clocks
\- 48 MIPS and 25 MIPS versions available.
\- Expanded interrupt handler
Memory
\- 4352 or 2304 Bytes RAM
\- 64 or 32 kB Flash; In-system programmable in 512-byt
sectors
Digital Peripherals
\- 40/25 Port I/O; All 5 V tolerant with high sink current
\- Hardware enhanced SPI™, SMBus™, and one or two
enhanced UART serial ports
\- Four general purpose 16-bit counter/timers
\- 16-bit programmable counter array PCA with five cap
ture/compare modules
\- External Memory Interface EMIF
Clock Sources
\- Internal Oscillator: ±0.25% accuracy with clock recover
enabled. Supports all USB and UART modes
\- External Oscillator: Crystal, RC, C, or clock 1 or 2 Pin
modes
\- Low Frequency 80 kHz Internal Oscillator
\- Can switch between clock sources on-the-fly
Packages
\- 48-pin TQFP C8051F340/1/4/5/8/C
\- 32-pin LQFP C8051F342/3/6/7/9/A/B/D
\- 5x5 mm 32-pin QFN C8051F342/3/6/7/9/A/B
Temperature Range: –40 to +85 °C