Silicon Labs EFM8BB31F32I-B-5QFN32, 8bit CIP-51 Microcontroller, EFM8BB3, 50MHz, 32 kB Flash, 32-Pin QFN
- RS Stock No.:
- 144-9494
- Mfr. Part No.:
- EFM8BB31F32I-B-5QFN32
- Brand:
- Silicon Labs
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Price (ex. GST) Each (In a Tube of 73)
$3.368
(exc. GST)
$3.873
(inc. GST)
units | Per unit | Per Tube* |
73 - 73 | $3.368 | $245.864 |
146 - 219 | $3.284 | $239.732 |
292 + | $3.233 | $236.009 |
*price indicative |
- RS Stock No.:
- 144-9494
- Mfr. Part No.:
- EFM8BB31F32I-B-5QFN32
- Brand:
- Silicon Labs
Technical data sheets
Legislation and Compliance
Product Details
The EFM8BB31F16I-4QFN24 is part of the Busy Bee family of 8051 based 8-bit MCUs. Built on top of a low power platform this device operates at 50 MHz. The EFM8BB31F16I-4QFN24 includes 16 kB Flash, 2.25 kB RAM, 20 Dig I/O Pins, 6 x 16-bit Timers, 0 PCA Channels, -40 to 125 ºC temperature range, Industrial grade, 4x4 QFN24 package, and additional communication peripherals.
Pipelined 8-bit 8051 MCU Core with
50 MHz operating frequency
Up to 29 multifunction I/O pins
One 12-bit/10-bit ADC
Four 12-bit DACs with synchronization
and PWM capabilities
Two low-current analog comparators with
built-in reference DACs
Internal temperature sensor
Internal 49 MHz and 24.5 MHz oscillators
accurate to ±2%
Four channels of Configurable Logic
6-channel PWM / PCA
Six 16-bit general-purpose timersCore:
Pipelined CIP-51 Core
Fully compatible with standard 8051 instruction set
70% of instructions execute in 1-2 clock cycles
50 MHz maximum operating frequency
Memory:
Up to 64 kB flash memory (63 kB user-accessible), in-sys-
tem re-programmable from firmware in 512-byte sectors
Up to 4352 bytes RAM (including 256 bytes standard 8051
RAM and 4096 bytes on-chip XRAM)
Power:
Internal LDO regulator for CPU core voltage
Power-on reset circuit and brownout detectors
I/O: Up to 29 total multifunction I/O pins:
Up to 25 pins 5 V tolerant under bias
Selectable state retention through reset events
Flexible peripheral crossbar for peripheral routing
5 mA source, 12.5 mA sink allows direct drive of LEDs
Clock Sources:
Internal 49 MHz oscillator with accuracy of ±2%
Internal 24.5 MHz oscillator with ±2% accuracy
Internal 80 kHz low-frequency oscillatorAnalog:
12/10-Bit Analog-to-Digital Converter (ADC)
Internal temperature sensor
4 x 12-Bit Digital-to-Analog Converters (DAC)
2 x Low-current analog comparators with adjustable refer-
ence
Communications and Digital Peripherals:
2 x UART, up to 3 Mbaud
SPI™ Master / Slave, up to 12 Mbps
SMBus™/I2C™ Master / Slave, up to 400 kbps
I
2C High-Speed Slave, up to 3.4 Mbps
16-bit CRC unit, supporting automatic CRC of flash at 256-
byte boundaries
4 Configurable Logic Units
Timers/Counters and PWM:
6-channel programmable counter array (PCA) supporting
PWM, capture/compare, and frequency output modes
6 x 16-bit general-purpose timers
Independent watchdog timer, clocked from the low frequen-
cy oscillator
On-Chip, Non-Intrusive Debugging
50 MHz operating frequency
Up to 29 multifunction I/O pins
One 12-bit/10-bit ADC
Four 12-bit DACs with synchronization
and PWM capabilities
Two low-current analog comparators with
built-in reference DACs
Internal temperature sensor
Internal 49 MHz and 24.5 MHz oscillators
accurate to ±2%
Four channels of Configurable Logic
6-channel PWM / PCA
Six 16-bit general-purpose timersCore:
Pipelined CIP-51 Core
Fully compatible with standard 8051 instruction set
70% of instructions execute in 1-2 clock cycles
50 MHz maximum operating frequency
Memory:
Up to 64 kB flash memory (63 kB user-accessible), in-sys-
tem re-programmable from firmware in 512-byte sectors
Up to 4352 bytes RAM (including 256 bytes standard 8051
RAM and 4096 bytes on-chip XRAM)
Power:
Internal LDO regulator for CPU core voltage
Power-on reset circuit and brownout detectors
I/O: Up to 29 total multifunction I/O pins:
Up to 25 pins 5 V tolerant under bias
Selectable state retention through reset events
Flexible peripheral crossbar for peripheral routing
5 mA source, 12.5 mA sink allows direct drive of LEDs
Clock Sources:
Internal 49 MHz oscillator with accuracy of ±2%
Internal 24.5 MHz oscillator with ±2% accuracy
Internal 80 kHz low-frequency oscillatorAnalog:
12/10-Bit Analog-to-Digital Converter (ADC)
Internal temperature sensor
4 x 12-Bit Digital-to-Analog Converters (DAC)
2 x Low-current analog comparators with adjustable refer-
ence
Communications and Digital Peripherals:
2 x UART, up to 3 Mbaud
SPI™ Master / Slave, up to 12 Mbps
SMBus™/I2C™ Master / Slave, up to 400 kbps
I
2C High-Speed Slave, up to 3.4 Mbps
16-bit CRC unit, supporting automatic CRC of flash at 256-
byte boundaries
4 Configurable Logic Units
Timers/Counters and PWM:
6-channel programmable counter array (PCA) supporting
PWM, capture/compare, and frequency output modes
6 x 16-bit general-purpose timers
Independent watchdog timer, clocked from the low frequen-
cy oscillator
On-Chip, Non-Intrusive Debugging
For products that are Customized and under Non-cancellable & Non-returnable, Sales & Conditions apply.
Specifications
Attribute | Value |
---|---|
Family Name | EFM8BB3 |
Package Type | QFN |
Mounting Type | Surface Mount |
Pin Count | 32 |
Device Core | CIP-51 |
Data Bus Width | 8bit |
Program Memory Size | 32 kB |
Maximum Frequency | 50MHz |
RAM Size | 2.304 kB |
USB Channels | 0 |
Number of PWM Units | 1 |
Number of SPI Channels | 1 |
Number of I2C Channels | 1 |
Number of USART Channels | 0 |
Typical Operating Supply Voltage | 2.2 → 3.6 V |
Number of UART Channels | 2 |
Number of CAN Channels | 0 |
Minimum Operating Temperature | -40 °C |
ADCs | 20 x 12 bit |
Length | 5mm |
Automotive Standard | AEC-Q100 |
Maximum Operating Temperature | +125 °C |
Number of ADC Units | 1 |
Instruction Set Architecture | 8051 |
Maximum Number of Ethernet Channels | 0 |
Dimensions | 5 x 5 x 0.75mm |
Number of PCI Channels | 0 |
Width | 5mm |
Height | 0.75mm |
Number of Ethernet Channels | 0 |
Number of LIN Channels | 0 |
Pulse Width Modulation | 1 (6 Channel) |
Program Memory Type | Flash |