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STMicroelectronics ST62T01CM3
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- Part No.:
- ST62T01CM3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ST62T01CM3.pdf
- Description:
- IC MCU 8BIT 2KB OTP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,742
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Product details
Overview
ST62T01CM3 from STMicroelectronics is an 8-bit OTP microcontroller with 2KB program memory, 64 bytes RAM, integrated 8-bit ADC (4-channel), dual timers (including watchdog), oscillator safeguard, and low-voltage detector. It operates from 3.0V to 6.0V, supports crystal/RC/LFAO clock sources, and targets embedded control in automotive sensors and industrial monitoring systems.
For engineers reviewing the ST62T01CM3 datasheet, ST62T01CM3 pinout, ST62T01CM3 application, or ST62T01CM3 equivalent, key selection considerations include its 16-pin SO package, 8MHz max clock, -40°C to +125°C operating range, 3 high-sink I/Os (20mA), and safe reset architecture with LVD and OSG.
Technical Context
The ST62T01CM3 implements a Harvard-architecture 8-bit CPU core with 40 instructions and 9 addressing modes. Its on-chip peripherals include an 8-bit timer/counter with 7-bit prescaler, configurable watchdog timer, and 8-bit successive-approximation ADC with four analog input channels mapped to Port A pins.
Power management includes two low-power modes-Wait and Stop-with wake-up via interrupt or external reset. Clock system flexibility is provided by main oscillator (crystal/ceramic/RC), backup LFAO, and Oscillator Safeguard (OSG) that detects clock failure and forces safe reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 8-bit Harvard CPU with 40 instructions and 9 addressing modes |
| Program Memory | 2KB OTP ROM - user-programmable one-time, no erasure required |
| RAM Size | 64 bytes - sufficient for small real-time control stacks and variables |
| ADC Resolution | 8-bit SAR ADC with 4 analog inputs - supports sensor signal digitization at medium precision |
| Max Clock Frequency | 8 MHz - enables deterministic timing for motor control or PWM generation |
| Supply Voltage Range | 3.0 V to 6.0 V - compatible with 3.3V and 5V systems without level shifting |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial environments |
| I/O Sink Current | 3 pins support 20 mA sink - directly drives LEDs or small relays without external drivers |
Pinout & Package
ST62T01CM3 is housed in a 16-pin SOIC (SO16) package with 1.27 mm pitch, JEDEC MS-012AC compliant, and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 3.0–6.0 V supply rail for core and I/O |
| VSS | Ground | Digital ground reference for all internal circuitry |
| OSCIN | Crystal/resonator input | Connects to one terminal of external crystal or ceramic resonator |
| OSCOUT | Crystal/resonator output | Drives second terminal of external timing element; forms Pierce oscillator |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; triggers full system initialization |
| NMI | Non-maskable interrupt input | Edge-triggered emergency interrupt not disabled by global mask |
| PA0–PA3 | Port A bidirectional I/O | PA1–PA3 support 20 mA sink; PA0–PA3 serve as ADC inputs (4-channel) |
| PB0–PB7 | Port B bidirectional I/O | PB0/PB1 are general-purpose; PB3/PB5–PB7 support alternate functions including timer/ADC control |
Key Features
| Feature | Design Value |
|---|---|
| Oscillator Safeguard (OSG) | Detects main clock failure and forces safe reset - prevents runaway execution in safety-critical control loops |
| Low Voltage Detector (LVD) | Monitors VDD and asserts reset below programmable threshold - avoids undefined behavior during brownout |
| High-Sink I/O Outputs | Three 20 mA sink-capable pins eliminate need for external driver transistors in LED/status indicator circuits |
| Two Power-Saving Modes | Wait mode halts CPU while preserving RAM/peripherals; Stop mode shuts down oscillator and reduces current to 1 µA |
| Integrated Watchdog Timer | Configurable timeout ensures recovery from software lockup - critical for unattended industrial controllers |
| On-Chip 8-bit ADC | Four analog inputs with internal reference - enables direct sensor interfacing (e.g., thermistor, potentiometer) |
Applications
| Automotive Cabin Sensor Node | Industrial Temperature Monitor |
|---|---|
Use Scenario: Monitoring cabin temperature, humidity, and CO₂ levels in HVAC control units. IC Role / Device Role / Timing Role: Central controller managing sensor reads, local decision logic, and CAN bus interface coordination. Use Value: Integrated ADC and LVD enable reliable operation across vehicle battery voltage swings (9–16 V), while OSG prevents firmware hang during EMI events. |
Use Scenario: Standalone temperature logger in factory machinery enclosures with ambient range up to 125°C. IC Role / Device Role / Timing Role: Data acquisition unit sampling thermistor inputs every 500 ms and storing min/max values in RAM. Use Value: 20 mA sink outputs drive status LEDs directly; Stop mode draws <1 µA during idle, extending battery life in wireless variants. |
| Appliance Motor Speed Controller | Smart Power Outlet with Load Sensing |
Use Scenario: Closed-loop speed regulation of BLDC fan motors in refrigerators using hall-effect feedback. IC Role / Device Role / Timing Role: Real-time PWM generator and commutation sequencer synchronized to hall sensor edges. Use Value: 8 MHz clock and 8-bit timer with 7-bit prescaler provide precise 20 kHz PWM carrier; high-sink I/Os drive gate drivers directly. |
Use Scenario: Energy-monitoring outlet detecting overload, surge, and zero-crossing for smart home integration. IC Role / Device Role / Timing Role: Analog front-end controller digitizing current transformer output and triggering relay cutoff on overcurrent. Use Value: Four ADC channels simultaneously sample voltage, current, temperature, and neutral offset; LVD ensures shutdown before undervoltage latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST62T20CB1 | 2KB ROM (not OTP); same pinout, identical peripheral set, no VPP programming pin | Targeted for high-volume production where code is finalized and field updates are unnecessary | Select when firmware stability and cost-per-unit outweigh need for post-manufacture reprogramming |
| STM8S003F3P6 | Enhanced 8-bit core, 8KB Flash, 1KB RAM, 10-bit ADC, higher clock (16 MHz), different pinout (20-pin TSSOP) | Supports more complex firmware, USB communication, and larger data buffers | Choose for new designs requiring scalability, debug interface (SWIM), or future feature expansion |
Compared with ST62T01CM3, ST62T20CB1 offers lower unit cost and simpler supply chain for fixed-code deployments, while STM8S003F3P6 provides significantly greater memory, resolution, and tooling support at the expense of board redesign and higher BOM cost.
Availability
ST62T01CM3 is available at Aetrix Electronics and suitable for automotive cabin control, industrial temperature monitoring, appliance motor control, and smart power outlet applications requiring stable component supply across extended product lifecycles.
Supply support for ST62T01CM3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for industrial, automotive, and consumer markets.
The ST62xx family was engineered for cost-sensitive, resource-constrained embedded control applications - emphasizing robustness, low power, and ease of integration in harsh environments like engine bays and factory floors.
FAQ
Is ST62T01CM3 pin-compatible with ST62T00CM3 or ST62T03CM3?
Yes - all ST62TxxC devices share identical 16-pin SOIC footprints and pin assignments. ST62T00CM3 has 1KB OTP, ST62T01CM3 has 2KB OTP, and ST62T03CM3 omits the ADC but retains the same package and I/O mapping, enabling hardware reuse across variants.
Does ST62T01CM3 support in-circuit programming after soldering?
No - ST62T01CM3 uses One-Time Programmable (OTP) memory. Programming must occur prior to PCB assembly using a dedicated ST6xxx programmer (e.g., STVP with adapter). Once programmed, code cannot be modified or erased.
What is the function of the VPP pin on ST62T01CM3?
VPP is the high-voltage programming supply pin (12.5 V ±0.5 V) used exclusively during OTP programming. In normal operation, VPP must be tied to VDD or left unconnected per ST's recommended configuration - it plays no role in runtime functionality.
Can the built-in watchdog timer be disabled in software?
No - the watchdog timer is always enabled after reset and cannot be disabled. It can only be configured for timeout period (via option byte) and must be serviced regularly via WDR instruction to prevent system reset.
ST62T01CM3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Series:
- ST6
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ST6
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- -
- Peripherals:
- LVD, POR, WDT
- Number of I/O:
- 9
- Program Memory Size:
- 2KB (2K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- -
- RAM Size:
- 64 x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 6V
- Data Converters:
- A/D 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
ST62T01CM3 FAQ
1.How can I place an order for ST62T01CM3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST62T01CM3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ST62T01CM3 reliable?
The price and inventory of ST62T01CM3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST62T01CM3 is usually 5 days.
3.What payment methods are accepted for ST62T01CM3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST62T01CM3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST62T01CM3?
ST62T01CM3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST62T01CM3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ST62T01CM3?
For technical support, including ST62T01CM3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST62T01CM3 requirements.
6.How does Aetrix verify that ST62T01CM3 is sourced from the original manufacturer or authorized distributors?
All ST62T01CM3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ST62T01CM3 meets industry standards.
7.What is the process for return or replacement of ST62T01CM3?
All ST62T01CM3 units undergo pre-shipment inspection (PSI). If there is an issue with ST62T01CM3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ST62T01CM3 part is unused and in its original packaging.
Return procedure for ST62T01CM3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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