The C8051F121-GQR from Silicon Labs is a high-speed 8051 MCU with 100MIPS throughput, 128KB Flash, 8448 bytes RAM, 12-bit 100ksps ADC, two 12-bit DACs, and 64 I\/O in a 64-pin TQFP package.<\/p>\n
| N\u00facleo<\/td>\n | High-Speed 8051 (pipelined)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Max Throughput<\/td>\n | 100 MIPS<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Flash Memory<\/td>\n | 128 KB<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| SRAM<\/td>\n | 8448 bytes (8KB + 256B scratch)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Tensi\u00f3n de alimentaci\u00f3n<\/td>\n | 2,7 V a 3,6 V<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| ADC<\/td>\n | 12-bit, 100 ksps, up to 8 external channels<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| DAC<\/td>\n | 2 x 12 bits<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comparators<\/td>\n | 2 (programmable)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Temporizadores<\/td>\n | 4 x 16-bit, PCA with 6 modules, WDT<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comunicaci\u00f3n<\/td>\n | 2x UART, SPI, SMBus (I2C)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| I\/O Pins<\/td>\n | 64 (5V-tolerant)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paquete<\/td>\n | TQFP-64 (10x10mm)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Temperatura de funcionamiento<\/td>\n | -40 to +85 C<\/td>\n<\/tr>\n<\/table>\nCaracter\u00edsticas<\/h2>\nAplicaciones<\/h2>\nProduct Overview The C8051F121-GQR from Silicon Labs is a high-speed 8051 MCU with 100MIPS throughput, 128KB Flash, 8448 bytes RAM, 12-bit 100ksps ADC, two 12-bit DACs, and 64 I\/O in a 64-pin TQFP package. Key Specifications Core High-Speed 8051 (pipelined) Max Throughput 100 MIPS Flash Memory 128 KB SRAM 8448 bytes (8KB + 256B scratch) […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[],"chip_brand":[184],"class_list":["post-3797","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-silabs"],"acf":{"brief_explanation":"100MIPS 8051 MCU, 128KB Flash, 12-bit ADC\/DAC, 64 I\/O, TQFP-64","date_code":"","package_case":"TQFP-64 (10 x 10 x 1.0 mm, GQ package, 0.5mm pitch)","in_stock":2947,"datasheet":"https:\/\/www.silabs.com\/documents\/public\/data-sheets\/C8051F12x-13x.pdf","price":"$8.50 @ 1ku","product_introduction":"The C8051F121-GQR from Silicon Labs is a fully integrated mixed-signal 8-bit microcontroller based on a high-speed pipelined 8051 core capable of 100MIPS throughput. Unlike the original 8051 architecture that requires 12 clock cycles per instruction, the C8051F121 uses a pipelined architecture that executes most instructions in 1-2 clock cycles, achieving approximately 10x the performance of a standard 8051 at the same clock frequency. The device integrates 128KB of in-system programmable Flash memory and 8448 bytes of on-chip RAM, providing ample code and data space for complex applications. The analog subsystem includes a 12-bit 100ksps SAR ADC with an 8-channel analog multiplexer, two 12-bit voltage-output DACs, two programmable comparators, and a voltage reference. The digital subsystem includes 64 digital I\/O pins that are 5V-tolerant, organized through Silicon Labs' patented crossbar decoder that allows flexible assignment of digital peripherals (UARTs, SPI, SMBus, PCA, timers) to any available I\/O pin. Four 16-bit general-purpose timers and a Programmable Counter Array (PCA) with 6 capture\/compare modules provide extensive timing and PWM capabilities. The on-chip JTAG debug interface allows non-intrusive full-speed in-system debugging with breakpoint and watch-point capabilities, eliminating the need for an ICE (In-Circuit Emulator). The device operates from 2.7V to 3.6V supply with multiple power-saving modes.","working_principle":"The C8051F121-GQR operates as a mixed-signal 8051 microcontroller with high-speed pipelined core. Key subsystems include: (1) Pipelined 8051 Core - the instruction pipeline overlaps instruction fetch, decode, and execute stages; most instructions complete in 1-2 system clock cycles vs. 12 cycles for standard 8051; the 100MIPS throughput at 100MHz system clock is approximately 10x the performance of a standard 8051 at the same frequency; the instruction set is 100% compatible with the MCS-51 standard; (2) Crossbar Decoder - a programmable routing matrix that connects internal digital peripherals to external I\/O pins; the user selects which peripherals are active and the crossbar assigns them to pins in a priority order; this eliminates the fixed peripheral-to-pin mapping of traditional 8051 devices, allowing any peripheral to use any pin; (3) 12-bit ADC - a successive-approximation ADC with 100ksps maximum conversion rate; an 8-channel analog multiplexer selects one of 8 external inputs; the ADC can be triggered by a timer overflow, external signal, or software; the ADC has an internal track-and-hold amplifier; (4) 12-bit DAC - two voltage-output DACs provide analog output capability; the DAC outputs can be updated synchronously or asynchronously; the output range is 0V to VREF; (5) JTAG Debug - an on-chip debug module provides real-time breakpoint capability (2 address breakpoints, 1 data breakpoint) without using any on-chip resources; the debug interface also provides in-system Flash programming capability.","pin_description":"
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