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Product attributes Property Value
Manufacturer Cypress Semiconductor Corp
Product Series PSOC®1 CY8C21xxx
Packaging Bulk |
Core Processor M8C
Core Size 8-Bit
Speed 12MHz
Connectivity I2C, SPI, UART/USART
Peripherals LVD, POR, PWM, WDT
Number of I/O 16
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 512 x 8
Voltage - Supply (Vcc/Vdd) 3V ~ 5.25V
Data Converters -
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 20-SSOP
Package / Case 20-SSOP (0.209", 5.30mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The CY8C21312-12PVXE from Cypress Semiconductor is an 8-bit M8C microcontroller running at 12MHz. It offers 8KB flash and 512 bytes RAM, with a supply range of 3V to 5.25V. The 20-SSOP package includes LVD, POR, PWM, and WDT. Designed for high-temperature, space-constrained applications in automotive and industrial settings.

  • Wide temperature range (-40°C to 125°C) – suitable for harsh automotive and industrial environments.
  • 5.25V maximum supply – direct interface with legacy 5V sensors and actuators.
  • 8KB flash – enough for compact control algorithms and calibration data.
  • 20-SSOP package – minimal board space for dense designs.
  • Integrated LVD/POR/WDT – reduces external components and improves reliability.

Automotive Sensor Conditioning

The -40°C to 125°C range and 5V operation handle exhaust or engine bay sensor signal conditioning.

Industrial Proximity Switches

PWM outputs and WDT enable reliable inductive proximity detection with noise immunity in factory floors.

Consumer Power Tools

3V-5.25V supply and 12MHz speed manage trigger speed control and battery protection in drills.

LED Lighting Controllers

PWM channels drive constant-current LED drivers for dimming in architectural lighting.

HVAC Damper Actuators

8KB flash stores position calibration; LVD and POR protect against power glitches in building systems.

Portable Gas Detectors

Low pin count and small SSOP package fit compact handheld devices with alarm outputs.

Q: What is the core architecture of the CY8C21312-12PVXE?
A: It uses the M8C core running at 12MHz, a proprietary 8-bit architecture.
Q: What is the supply voltage range?
A: It operates from 3V to 5.25V, compatible with both 3.3V and 5V systems.
Q: How much flash and RAM does it have?
A: It includes 8KB flash and 512 bytes of RAM, suitable for small control tasks.
Q: What package is available?
A: It comes in a 20-SSOP package with a 5.30mm width.
Q: What is the operating temperature range?
A: It is rated for -40°C to 125°C, making it suitable for high-temperature environments.
Base Product Number : CY8C21312
12MHz 20-SSOP 512B RAM 8-bit MCU 8KB flash automotive Cypress high-temperature industrial LVD M8C core POR PWM WDT
Q: What is the core architecture of the CY8C21312-12PVXE?
A: It uses the M8C core running at 12MHz, a proprietary 8-bit architecture.
Q: What is the supply voltage range?
A: It operates from 3V to 5.25V, compatible with both 3.3V and 5V systems.
Q: How much flash and RAM does it have?
A: It includes 8KB flash and 512 bytes of RAM, suitable for small control tasks.
Q: What package is available?
A: It comes in a 20-SSOP package with a 5.30mm width.
Q: What is the operating temperature range?
A: It is rated for -40°C to 125°C, making it suitable for high-temperature environments.