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Product Descriptions

The BF7612CMXX uses the high speed 8051 core with 1T instruction cycle, compared to the standard 8051 (12T) instruction cycle, it has the quicker running speed, compatibility standard 8051 instruction. 

The BF7612CMXX includes a watchdog, key detection, LED serial dot matrix driver, IIC, UART, low voltage detection, power down reset, 16bit PWM, Timer0, Timer1, Timer2, 12bit successive approximation ADC, low power management, etc. 

BF7612CMXX integrates multiple capacitive detection channels, which can be used for proximity sensing or touch detection. Each channel can be flexibly configured to achieve various applications such as buttons, wheels, sliders, etc., and each channel can adjust the touch sensitivity through the corresponding function register.

Products Features

? Core: 1T 8051

○ Operating frequency: 12MHz, 6MHz, 4MHz

○ Clock error: ±1 percent@ 25℃, 5V

                       ±3 percent @-40℃ ~105℃, 5V

? Memory

○ CODE: 15K bytes

○ DATA: 1K + 2*512 bytes

○ SRAM: 256 bytes(data)+512 bytes(xdata)

? Clock Source, Reset

○ Internal low-speed clock LIRC: 32kHz

Clock error: ±15 percent @25℃, 5V

                    ±35 percent @-40℃ ~105℃, 5V

○ Internal high-speed RC oscillator: 1MHz

○ External crystal oscillator: 32768Hz/4MHz

○ 7 resets, power-down reset voltage (Bor): 2.1V

○ Low voltage detection: 2.4V/3.0V/3.6V/4.2V

? IO

○ IO ports built-in pull-up resistor 4.7k

○ High current sink port (PB0~PB7)

○ Support IO function remapping

○ INT0~2 (rising-edge, falling-edge, double edge)

? Communication Module

○ 2*UART communication

○ IIC slave mode, support 100/400kHz

? 16-bit PWM

○ PWM0 supports 4 channels, with the same frequency, configurable duty cycle and polarity

○ PWM1 supports 1 channel

○ PWM2 supports 1 channel

? Operating Voltage: 2.5 V ~ 5.5 V

? Operating Temperature: -40 ℃ ~ 105 ℃

○ Enhanced industrial grade, in line with JESD

industrial grade reliability certification standards

? 12-bit High-speed ADC

○ Up to 26 analog input channels

○ Reference voltage: VCC

? Interrupt

○ Two-level interrupt priority capablity

○ ADC, CSD, LED, INT0/1/2, LVDT, Timer0~2,WDT, UART0/1, IIC interrupt

? Timer

○ 16-bit Timer0/1, 32-bit Timer2

○ Timer2 clock source: internal low-speed clock LIRC 32k or XTAL 32768Hz/4MHz

○ Watchdog timer, overflow time 18ms to 2.304s

? LED Driver

○ 4x4, 5x5, 6x6, 6x7, 7x7, 7x8, 8x8 dot matrix driver

? low Power Management

○ Idle mode, power consumption 26μA @5V typical

? CTK

○ The key sensitivity is set independently

○ Capacitive keys can be reused as GPIO

? JTAG debug emulation interface

? Package

○ SOP16/SOP20/SOP28

Specifications

Actual product photos

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