Silicon Labs, 8bit 8051, C8051F Microcontroller, 25MHz, 64 kB Flash, 100-Pin TQFP
- RS Stock No.:
- 168-9899
- Mfr. Part No.:
- C8051F040-GQ
- Brand:
- Silicon Labs
Subtotal (1 tray of 90 units)*
£1,739.25
(exc. VAT)
£2,087.10
(inc. VAT)
FREE delivery for orders over £50.00
- Shipping from 20 April 2026
| Units | Per unit | Per Tray* | 
|---|---|---|
| 90 + | £19.325 | £1,739.25 | 
*price indicative
- RS Stock No.:
- 168-9899
- Mfr. Part No.:
- C8051F040-GQ
- Brand:
- Silicon Labs
| Select all | Attribute | Value | 
|---|---|---|
| Brand | Silicon Labs | |
| Family Name | C8051F | |
| Package Type | TQFP | |
| Mounting Type | Surface Mount | |
| Pin Count | 100 | |
| Device Core | 8051 | |
| Data Bus Width | 8bit | |
| Program Memory Size | 64 kB | |
| Maximum Frequency | 25MHz | |
| RAM Size | 4.352 kB | |
| USB Channels | 0 | |
| Number of PWM Units | 2 x 8/16 bit | |
| Number of SPI Channels | 1 | |
| Number of UART Channels | 2 | |
| Number of USART Channels | 0 | |
| Typical Operating Supply Voltage | 2.7 → 3.6 V | |
| Number of I2C Channels | 0 | |
| Number of CAN Channels | 1 | |
| Number of Ethernet Channels | 0 | |
| Width | 14mm | |
| Number of ADC Units | 2 | |
| Maximum Operating Temperature | +85 °C | |
| Height | 1.05mm | |
| Number of LIN Channels | 0 | |
| Length | 14mm | |
| Dimensions | 14 x 14 x 1.05mm | |
| Maximum Number of Ethernet Channels | 0 | |
| Instruction Set Architecture | Harvard | |
| Number of PCI Channels | 0 | |
| Minimum Operating Temperature | -40 °C | |
| Program Memory Type | Flash | |
| Pulse Width Modulation | 1 (16 bit), 1 (8 bit) | |
| ADCs | 21 x 8/12 bit | |
| Select all | ||
|---|---|---|
| Brand Silicon Labs | ||
| Family Name C8051F | ||
| Package Type TQFP | ||
| Mounting Type Surface Mount | ||
| Pin Count 100 | ||
| Device Core 8051 | ||
| Data Bus Width 8bit | ||
| Program Memory Size 64 kB | ||
| Maximum Frequency 25MHz | ||
| RAM Size 4.352 kB | ||
| USB Channels 0 | ||
| Number of PWM Units 2 x 8/16 bit | ||
| Number of SPI Channels 1 | ||
| Number of UART Channels 2 | ||
| Number of USART Channels 0 | ||
| Typical Operating Supply Voltage 2.7 → 3.6 V | ||
| Number of I2C Channels 0 | ||
| Number of CAN Channels 1 | ||
| Number of Ethernet Channels 0 | ||
| Width 14mm | ||
| Number of ADC Units 2 | ||
| Maximum Operating Temperature +85 °C | ||
| Height 1.05mm | ||
| Number of LIN Channels 0 | ||
| Length 14mm | ||
| Dimensions 14 x 14 x 1.05mm | ||
| Maximum Number of Ethernet Channels 0 | ||
| Instruction Set Architecture Harvard | ||
| Number of PCI Channels 0 | ||
| Minimum Operating Temperature -40 °C | ||
| Program Memory Type Flash | ||
| Pulse Width Modulation 1 (16 bit), 1 (8 bit) | ||
| ADCs 21 x 8/12 bit | ||
- COO (Country of Origin):
- TW
C8051F04x Microcontrollers, Silicon Labs
Enable, disable and configure all the analogue and digital peripherals using the firmware. Flash memory can be reprogrammed even in-circuit, providing non-volatile data storage, and also allowing field upgrades of the 8051 firmware.
They are specified for 2.7 V to 3.6 V operation over the industrial temperature range (-45°C to +85°C). The C8051F040/2/4/6 are available in a 100-pin TQFP package. The C8051F021/3/5/7 are available in a 64-pin TQFP package.
- CAN controller
- In-system, full-speed, non-intrusive debug interface (on-chip)
- 12-bit (C8051F040/1) or 10-bit (C8051F042/3/4/5/6/7) 100 ksps 8-channel ADC with PGA and analogue multiplexer
- High-voltage Difference Amplifier input to the ADC with programmable gain
- Three analogue comparators
- 8-bit ADC 500 ksps 8-channel ADC with PGA and analogue multiplexer (C8051F40/1/2/3)
- Two 12-bit DACs with programmable update scheduling (C8051F40/1/2/3)
- 64 kB (C8051F040/1/2/3/4/5) or 32 kB (C8051F046/7) of in-system programmable FLASH memory
- 4352 (4096 + 256) bytes of on-chip RAM
- External Data Memory Interface with 64 kB address space
- SPI, SMBus/I2C, and two UART serial interfaces implemented in hardware
- 64 digital I/O pins (C8051F040/2/4/6) or 32 digital I/O pins (C8051F041/3/5/7)
- Five, general purpose 16-bit Timers
- Programmable Counter/Timer Array with five capture/compare modules
- On-chip Watchdog Timer, VDD Monitor, and Temperature Sensor

Related links
- Silicon Labs C8051F Microcontroller 64 kB Flash, 100-Pin TQFP
- Silicon Labs C8051F Microcontroller 64 kB Flash, 64-Pin TQFP
- Silicon Labs C8051F Microcontroller 32 kB Flash, 48-Pin TQFP
- Silicon Labs C8051F Microcontroller 64 kB Flash, 100-Pin TQFP
- Silicon Labs C8051F Microcontroller 64 kB Flash, 100-Pin TQFP
- Silicon Labs C8051F Microcontroller 128 kB Flash, 100-Pin TQFP
- Silicon Labs C8051F Microcontroller 128 kB Flash, 100-Pin TQFP
- Silicon Labs C8051F Microcontroller 64 kB Flash, 64-Pin TQFP
