CIP-51 8051 Busy Bee Microcontroller IC 8-Bit 50MHz 16KB (16K x 8) FLASH 20-QFN (3x3)
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EFM8BB21F16G-C-QFN20R

DigiKey Part Number
336-4743-2-ND - Tape & Reel (TR)
336-4743-1-ND - Cut Tape (CT)
336-4743-6-ND - Digi-Reel®
Manufacturer
Manufacturer Part Number
EFM8BB21F16G-C-QFN20R
Description
IC MCU 8BIT 16KB FLASH 20QFN
Manufacturer Standard Lead Time
16 Weeks
Customer Reference
Detailed Description
CIP-51 8051 Busy Bee Microcontroller IC 8-Bit 50MHz 16KB (16K x 8) FLASH 20-QFN (3x3)
Datasheet
 Datasheet
EDA/CAD Models
EFM8BB21F16G-C-QFN20R Models
Product Attributes
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Category
Program Memory Size
Mfr
Program Memory Type
FLASH
Series
RAM Size
2.25K x 8
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Voltage - Supply (Vcc/Vdd)
2.2V ~ 3.6V
Part Status
Active
Data Converters
A/D 15x12b
DigiKey Programmable
Not Verified
Oscillator Type
Internal
Core Processor
CIP-51 8051
Operating Temperature
-40°C ~ 85°C (TA)
Core Size
8-Bit
Mounting Type
Surface Mount
Speed
50MHz
Supplier Device Package
20-QFN (3x3)
Connectivity
I2C, SMBus, SPI, UART/USART
Package / Case
20-WFQFN Exposed Pad
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Base Product Number
Number of I/O
16
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
In-Stock: 0
1,500 estimated in stock on 14-Jan-2027
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All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$1.29000$1.29
10$1.09100$10.91
25$1.01240$25.31
100$0.90360$90.36
250$0.84168$210.42
500$0.80090$400.45
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
1,500$0.74698$1,120.47
3,000$0.71931$2,157.93
4,500$0.70520$3,173.40
7,500$0.68941$5,170.57
10,500$0.68012$7,141.26
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