C8051F121R

$16.30

Description：IC MCU 8BIT 128KB FLASH 64TQFP
Series：C8051F12x
Mfr：Silicon Labs
Package：Tape & Reel (TR)
Core Processor：8051

SKU:572e2db2c8be Category: Microcontrollers Brand: Silicon Labs

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Product introduction

Product Detailed Parameters

Description：IC MCU 8BIT 128KB FLASH 64TQFP
Series：C8051F12x
Mfr：Silicon Labs
Package：Tape & Reel (TR)
Core Processor：8051
Core Size：8-Bit
Speed：100MHz
Connectivity：EBI/EMI, SMBus (2-Wire/I2C), SPI, UART/USART
Peripherals：Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number of I/O：32
Program Memory Size：128KB (128K x 8)
Program Memory Type：FLASH
EEPROM Size：-
RAM Size：8.25K x 8
Voltage - Supply (Vcc/Vdd)：3V ~ 3.6V
Data Converters：A/D 8x8b, 8x10b; D/A 2x12b
Oscillator Type：Internal
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Supplier Device Package：64-TQFP (10x10)
Package / Case：64-TQFP

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C8051F121R

Overview

The C8051F121R is an 8-bit microcontroller from Silicon Labs, part of the C8051F12x family. It features a high-speed 8051 core with up to 100 MIPS throughput and a 16x16 MAC engine. Memory includes 128 kB banked Flash and 8448 bytes internal data RAM. Analog peripherals comprise a 12-bit SAR ADC (up to 100 ksps) and two 12-bit DACs. Digital interfaces include SMBus, SPI, and dual UARTs. The device operates at 3.0 V to 3.6 V in a 64-pin TQFP package.

Feature Summary

Integrated 16x16 Multiply and Accumulate (MAC) engine for high-speed digital signal processing.
On-chip JTAG debug circuitry enabling full-speed, non-intrusive in-system debugging.
Programmable digital crossbar allows flexible mapping of peripheral functions to I/O pins.
Dual 12-bit DACs capable of synchronized output updates via timers for jitter-free waveform generation.

Applications

Data acquisition systems requiring simultaneous analog input and output.
Industrial control applications utilizing the MAC engine for real-time calculations.
Embedded systems needing robust on-chip debugging capabilities during development.

Procurement Notes

Verify the specific suffix 'R' against the manufacturer's current documentation to confirm packaging type and availability status. Cross-reference the datasheet revision to ensure all electrical characteristics match your design requirements. Confirm RoHS compliance details if required by your manufacturing standards.

Selection Notes

Select this component when a high-performance 8-bit MCU with integrated DSP capabilities is needed. The inclusion of both 12-bit ADCs and DACs makes it suitable for mixed-signal applications. Ensure the 64-pin TQFP package fits your board layout constraints and that the 3.0 V to 3.6 V supply range aligns with your power system.

Part Context

This device belongs to the C8051F12x series of fully integrated mixed-signal System-on-Chip microcontrollers. It shares architectural similarities with the C8051F13x series but differs in analog peripheral configurations. The CIP-51 core provides enhanced performance over standard 8051 implementations while maintaining software compatibility.