C8051F968-B-GMR Silicon Labs 8bit MCU

C8051F968-B-GMR Overview

8051 C8051F9xx Microcontroller IC 8-Bit 25MHz 16KB (16K x 8) FLASH 76-DQFN (6x6)

Features

Ultra Low Power Consumption at 3.6 V

- 130 μA/MHz Low-Power Active mode with dc-dc

enabled

- 120 nA sleep current w/ data retention; POR monitor

enabled

- 450 nA sleep mode with SmaRTClock

(internal LFO)

- 600 nA sleep mode with SmaRTClock (ext. crystal)

- 2 μs wakeup time; 1.5 μA analog settling time

12-Bit; 16 Ch. Analog-to-Digital Converter

- Up to 75 ksps (12-bit mode) or 300 ksps

(10-bit mode)

- External pin or internal VREF (no ext cap required)

- On-chip voltage reference; 0.5x gain allows measuring voltages up to twice the reference voltage

- Autonomous burst mode with 16-bit auto-averaging

accumulator

- Integrated temperature sensor

Two Low Current Comparators

- Programmable hysteresis and response time

- Configurable as wake-up or reset source

Internal 6-Bit Current Reference

- Up to ±500 μA; source and sink capability

- Enhanced resolution via PWM interpolation

Integrated LCD Controller

- Supports up to 128 segments (32x4)

- LCD controller consumes only 400 nA for

32-segment static display

- Integrated charge pump for contrast control

Metering-Specific Peripherals

- DC-DC buck converter allows dynamic voltage

scaling for maximum efficiency (250 mW output)

- Sleep-mode pulse accumulator with programmable

switch, de-bounce and pull-up control; interfaces

directly to metering sensor

- Data Packet Processing Engine (DPPE) includes

hardware AES, DMA, CRC and encoding blocks for

acceleration of wireless protocols

High-Speed 8051 μC Core

- Pipelined instruction architecture; executes 70% of

instructions in 1 or 2 system clocks

Memory

- Up to 128 kB Flash; In-system programmable; Full

read/write/erase functionality over supply range

- Up to 8 kB internal data RAM

Digital Peripherals

- 57 or 34 port I/O; All 5 V tolerant with high sink

current and programmable drive strength

- Hardware SMBus™ (I2C™ Compatible), 2 x SPI™,

and UART serial ports available concurrently

- Four general purpose 16-bit counter/timers

- Programmable 16-bit counter/timer array with six

capture/compare modules and watchdog timer

Clock Sources

- Precision Internal oscillator: 24.5 MHz, 2% accuracy

supports UART operation; spread-spectrum mode

for reduced EMI

- Low power internal oscillator: 20 MHz

- External oscillator: Crystal, RC, C, or CMOS Clock

- SmaRTClock oscillator: 32 kHz Crystal or 16.4 kHz

internal LFO

On-Chip Debug

- On-chip debug circuitry facilitates full-speed, nonintrusive in-system debug (no emulator required)

- Provides 4 breakpoints, single stepping

Packages

- 76-pin DQFN (6 x 6 mm)

- 40-pin QFN (6 x 6 mm)

- 80-pin TQFP (12 x 12 mm)

Temperature Range: –40 to +85 °C

Applications

Embedded Control Systems: These microcontrollers are commonly used in control applications, such as home automation systems, industrial automation, and robotics.
Sensor Interface: They can be used to interface with various sensors, gather data, and make decisions based on sensor input.
Communication Devices: Microcontrollers in this series can be found in devices that require communication interfaces, such as UART-based communication for data transfer.
Consumer Electronics: They are used in consumer electronics like remote controls, smart devices, and gadgets.
IoT (Internet of Things): IoT devices often employ microcontrollers like the C8051F968-B-GMR to enable connectivity and control.
Motor Control: In motor control applications, these microcontrollers can be used to control and monitor motors, such as in fans and pumps.
Automotive Systems: Some microcontrollers are designed to meet automotive industry standards and are used in various automotive applications, including engine control units (ECUs) and vehicle control systems.