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This is manufactured by Silicon Labs. The manufacturer part number is EFM8BB21F16I-C-QFN20R. It is assigned with possible HTSUS value of 8542.31.0001. The product is rohs3 compliant. In addition, 16kb (16k x 8) is the program memory size. It has supplied with other peripherals, such as brown-out detect/reset, por, pwm, wdt. The product has -40°c ~ 125°c (ta) operating temperature range. The supply voltage of a bespoke product includes 2.2v ~ 3.6v. Moreover, the product comes in 20-wfqfn exposed pad. The product has typical 2.25k x 8 RAM size. It is a flash program memory type. In addition, it is reach unaffected. It provides connectivity solutions through i2c, smbus, spi, uart/usart. It is shipped in tape & reel (tr) package . The product is a internal type of oscillator. Its typical moisture sensitivity level is 2 (1 year). 16 is the I/O value of the product. It has a long 20 weeks standard lead time. It has a core size 8-bit. The product is available in surface mount configuration. The product busy bee, is a highly preferred choice for users. 20-qfn (3x3) is the supplier device package value. The typical data converters include a/d 15x12b. cip-51 8051 is the product's core processor. It has a robust speed of 50mhz. Moreover, it corresponds to efm8bb21, a base product number of the product. The product is designated with the 3a991a2 code number.
For more information please check the datasheets.
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