8-bit Microcontroller

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The C8051F330 is a highly integrated mixed-signal 8-bit MCU featuring a powerful 8051 core with 25 MHz performance. The MCU offers 8 kB Flash, 0.75 kB RAM along wtih additional communication interfaces and 4 x 16-bit Timers in a 4x4 mm, QFN20. On-chip analog features include a 10-bit, 16-ch., 200 ksps ADC, 10-bit, 1-ch. DAC, 1 comparators. With on-chip Power-On Reset, VDD monitor, Watchdog timer, a ±2 internal oscillator, the C8051F330-GM MCU is a truly stand-alone System-on-chip solution making it ideal for applications such as Battery chargers, electronic toys and games, motor control and optical communications.

Symmetry Electronics is an authorized Silicon Labs distributor.


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Analog Peripherals
- 10-Bit ADC (F330/2/4 only)
Up to 200 ksps
Up to 16 external single-ended or differential inputs
VREF from internal VREF, external pin or VDD
Internal or external start of conversion source
Built-in temperature sensor
- 10-Bit Current Output DAC (F330 only)
- Comparator
Programmable hysteresis and response time
Configurable as interrupt or reset source
Low current (0.4 A)
On-Chip Debug
- On-chip debug circuitry facilitates full speed, nonintrusive 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
- Low cost, complete development kit
Supply Voltage 2.7 to 3.6 V
- Typical operating current: 6.4 mA at 25 MHz;
9 A at 32 kHz
- Typical stop mode current: 0.1 A
Temperature Range: 40 to +85 C
High Speed 8051 C Core
- Pipelined instruction architecture; executes 70% of
instructions in 1 or 2 system clocks
- Up to 25 MIPS throughput with 25 MHz clock
- Expanded interrupt handler
- 768 bytes internal data RAM (256 + 512)
- 8 kB (F330/1), 4 kB (F332/3), or 2 kB (F334/5)
Flash; In-system programmable in 512-byte Sectors512 bytes are reserved in the 8 kB devices
Digital Peripherals
- 17 Port I/O; All 5 V tolerant with high sink current
- Hardware enhanced UART, SMBus, and
enhanced SPI serial ports
- Four general purpose 16-bit counter/timers
- 16-Bit programmable counter array (PCA) with three capture/compare modules
- Real time clock mode using PCA or timer and external clock source
Clock Sources
- Two internal oscillators:
24.5 MHz with 2% accuracy supports crystal-less UART operation
80/40/20/10 kHz low frequency, low power
- External oscillator: Crystal, RC, C, or clock (1 or 2 pin modes)
- Can switch between clock sources on-the-fly; useful in power saving modes
20-Pin QFN Package

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8-bit Microcontroller