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Microchip Technology ATTINY406-SFR Microcontrollers

IC MCU 8BIT 4KB FLASH 20SOIC

2,000 ActiveMicrochip TechnologyATTINY40620-SOIC (0.295", 7.50mm Width)$2.24
ATTINY406-SFR 20-SOIC (0.295", 7.50mm Width) package illustration

Same model may have multiple batches, images only for reference.

ATTINY406-SFR
Part Number (MPN)
ATTINY406-SFR
Base Model
Detailed Description
IC MCU 8BIT 4KB FLASH 20SOIC
Package
20-SOIC (0.295", 7.50mm Width)
Lifecycle Status
Active
Datasheet
PDF ATTINY406-SFR Datasheet
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Ordering Code Family

ATTINY406 groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

View all variants

Technical Specifications

Microchip Technology ATTINY406-SFR Microcontrollers technical specifications.

General

RAM Size
256 x 8
RoHS
Yes
Number of Pins
20
Package / Case
20-SOIC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active
Peripherals
Brown-out Detect/Reset, POR, WDT
Number of I/O
18

Related Parts Comparison (ATTINY406-SFR vs ATTINY406-MF vs ATTINY406-MNR vs ATTINY406-SF)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
Package / Case20-SOICVQFN-2020-VFQFN Exposed Pad20-SOIC
Mounting TypeSurface MountSMD/SMTSurface MountSurface Mount
Operating Temperature-40°C ~ 125°C (TA)- 40 ~ + 125°C-40°C ~ 105°C (TA)-40°C ~ 125°C (TA)
Supply Voltage2.7V ~ 5.5V2.71.8V ~ 5.5V2.7V ~ 5.5V
RAM Size256 x 8256 B256 x 8256 x 8
Program Memory Size4KB (4K x 8)4 kB4KB (4K x 8)4KB (4K x 8)
Program Memory TypeFlashFlashFlashFlash
Number of Pins20--2020
Core ProcessorAVR--AVRAVR
Core Size8-Bit--8-Bit8-Bit
RoHSYes--YesYes
Lifecycle StatusActive--ActiveActive
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Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

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