8-bit Microcontroller

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The C8051F120 is a highly integrated mixed-signal 8-bit MCU featuring a powerful 8051 core with 100 MHz performance. This analog-intensive MCU features a 12-bit, 8-ch., 100 ksps ADC, a 12-bit, 2-ch. DAC and 2 comparators. The C8051F120 also offers 128 kB Flash, 8 kB RAM along with 5 x 16-bit Timers and additional communication interfaces in a 14x14 mm, QFP100. With on-chip VDD monitor, Watchdog timer, a ±2 internal oscillator and high analog integration, the C8051F120 MCU is a truly stand-alone System-on-chip solution making it ideal for applications such as portable medical equipment, weigh scales, test equipment and fiber optic systems among others.

Symmetry Electronics is an authorized Silicon Labs distributor.


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Analog Peripherals
- 10 or 12-bit SAR ADC
Programmable throughput up to 100 ksps
Up to 8 external inputs; programmable as singleended or differential
Programmable amplifier gain: 16, 8, 4, 2, 1, 0.5
Data-dependent windowed interrupt generator
Built-in temperature sensor
- 8-bit SAR ADC (F12x Only)
Programmable throughput up to 500 ksps
8 external inputs (single-ended or differential)
Programmable amplifier gain: 4, 2, 1, 0.5
- Two 12-bit DACs (F12x Only)
Can synchronize outputs to timers for jitter-free waveform generation
- Two Analog Comparators
- Voltage Reference
- VDD Monitor/Brown-Out Detector
On-Chip JTAG Debug & Boundary Scan
- On-chip debug circuitry facilitates full-speed, non-intrusive in-circuit/in-system debugging
- Provides breakpoints, single-stepping, watchpoints, stack monitor; inspect/modify memory and registers
- Superior performance to emulation systems using
ICE-chips, target pods, and sockets
- IEEE1149.1 compliant boundary scan
- Complete development kit
100-Pin TQFP or 64-Pin TQFP Packaging
- Temperature Range: 40 to +85 C
- RoHS Available
High Speed 8051 C Core
- Pipelined instruction architecture; executes 70% of instruction set in 1 or 2 system clocks
- 100 MIPS or 50 MIPS throughput with on-chip PLL
- 2-cycle 16 x 16 MAC engine (C8051F120/1/2/3 and C8051F130/1/2/3 only)
- 8448 bytes internal data RAM (8 k + 256)
- 128 or 64 kB Banked Flash; in-system programmable in 1024-byte sectors
- External 64 kB data memory interface (programmable multiplexed or non-multiplexed modes)
Digital Peripherals
- 8 byte-wide port I/O (100TQFP); 5 V tolerant
- 4 Byte-wide port I/O (64TQFP); 5 V tolerant
- Hardware SMBus (I2C Compatible), SPI, and two UART serial ports available concurrently
- Programmable 16-bit counter/timer array with 6 capture/compare modules
- 5 general purpose 16-bit counter/timers
- Dedicated watchdog timer; bi-directional reset pin
Clock Sources
- Internal precision oscillator: 24.5 MHz
- Flexible PLL technology
- External Oscillator: Crystal, RC, C, or clock
Voltage Supplies
- Range: 2.73.6 V (50 MIPS) 3.03.6 V (100 MIPS)
- Power saving sleep and shutdown modes

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8-bit Microcontroller