LIANYIXIN · INDEPENDENT COMPONENT STORE
English / USD quote

Microchip Technology · Microchip

ATAR890K-028-TKQY

IC MCU 4BIT 2KB MROM 20SSO

A multi-brand MCU and embedded-component workspace. Compare recorded cores, memory, interfaces and packages while retaining firmware, board and manufacturer constraints.

Request this exact part →
ATAR890K-028-TKQY component illustration
Component illustration · verify actual package in documentation.

ATAR890K-028-TKQY specifications

Recorded source facts. Missing values are kept explicit; verify the exact manufacturer document before design approval.

ManufacturerMicrochip Technology
Ordering codeATAR890K-028-TKQY
FamilyMicrochip
Package20-TSSOP (0.173", 4.40mm Width)
Product StatusObsolete
DigiKey ProgrammableNot Verified
Core ProcessorMARC4
Core Size4-Bit
Speed4MHz
ConnectivityNot provided in source
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
Number of I/O12
Program Memory Size2KB (2K x 8)
Program Memory TypeMask ROM
EEPROM Size64 x 8
RAM Size256 x 4
Voltage - Supply (Vcc/Vdd)1.8V ~ 6.5V
Data ConvertersNot provided in source
Oscillator TypeInternal
Operating Temperature-40°C ~ 85°C (TA)
Mounting TypeSurface Mount
Package / Case20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package20-SSO

Documents and evidence

Request exact-model documentation with your inquiry.

Before sourcing ATAR890K-028-TKQY

  1. Start from engineering requirements
  2. Record toolchain and firmware dependencies
  3. Verify package, pinout and peripherals
  4. Approve alternatives before procurement
Embedded Design Matcher →

Questions about ATAR890K-028-TKQY

How do I request a current price?

Provide this full code, quantity, destination and arrival date. Budget estimates are conditional; final availability and price are confirmed by quotation.

Can a related record replace this device?

Related records aid discovery. Package, pinout, ratings, tooling and software require engineering approval before substitution.

Continue your Microchip review

Filter this family → · Selection resources · Upload your BOM