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STMicroelectronics ST62T00CM6
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- Part No.:
- ST62T00CM6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ST62T00CM6.pdf
- Description:
- IC MCU 8BIT 1KB OTP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,109
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Product details
Overview
ST62T00CM6 from STMicroelectronics is an 8-bit OTP microcontroller with 1KB 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, appliance motor interfaces, and industrial monitoring systems.
For engineers reviewing the ST62T00CM6 datasheet, ST62T00CM6 pinout, ST62T00CM6 application, or ST62T00CM6 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use scenarios, and engineer-selected alternatives - all grounded in ST's official Doc ID 4563 Rev 5 specification.
Technical Context
The ST62T00CM6 implements a Harvard-architecture 8-bit CPU core with 40 instructions and 9 addressing modes. Its clock system integrates a main oscillator (up to 8 MHz), low-frequency auxiliary oscillator (LFAO), and oscillator safeguard (OSG) that detects crystal failure and forces safe reset.
Power management includes Wait and Stop modes with wake-up via external interrupt or timer event; reset is secured by both asynchronous RESET pin and LVD-triggered reset at programmable thresholds (typically 2.7V or 3.8V). The 8-bit ADC samples up to 4 analog inputs with internal reference, while the 8-bit timer features a 7-bit prescaler for flexible timing resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 8-bit Harvard CPU with 40 instructions and 9 addressing modes - enables compact firmware and deterministic interrupt latency. |
| Program Memory | 1 KB OTP - provides one-time programmable, tamper-resistant code storage without need for external EPROM programmer. |
| RAM Size | 64 bytes - sufficient for register shadowing, stack depth (6 levels), and small data buffers in sensor/control loops. |
| ADC Resolution | 8-bit with 4 input channels - supports direct interfacing to thermistors, potentiometers, and voltage-sense points in cost-sensitive systems. |
| Operating Voltage | 3.0 V to 6.0 V - allows direct connection to 3.3 V or 5 V rails without level-shifting in automotive body electronics and white goods. |
| Max Clock Frequency | 8 MHz - delivers ~1 MIPS throughput suitable for real-time PWM generation and serial protocol bit-banging (e.g., LIN, UART). |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive and industrial environments without derating. |
| I/O Sink Current | 3 high-sink outputs rated at 20 mA each - drives LEDs, small relays, or MOSFET gates directly without external drivers. |
Pinout & Package
ST62T00CM6 is housed in a 16-pin SOIC (SO16) package with 1.27 mm pitch, JEDEC MS-012AC compliant, and 10.2 mm × 7.5 mm footprint - optimized for automated SMT assembly and thermal reliability in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main positive supply rail (3.0–6.0 V); decoupling capacitor required near pin for noise immunity. |
| VSS | Ground | Digital ground reference; must be connected to low-impedance PCB plane for ADC accuracy and EMI suppression. |
| OSCIN / OSCOUT | Crystal oscillator interface | Connects to external crystal or ceramic resonator (1–8 MHz); OSCIN is input, OSCOUT is buffered output for feedback. |
| RESET | Asynchronous reset input | Active-low pin; initiates full hardware reset on falling edge; internally pulled up; compatible with push-button or LVD assertion. |
| NMI | Non-maskable interrupt | Edge-triggered input for critical fault handling (e.g., overtemperature, safety shutdown) that cannot be disabled by software. |
| PA0–PA3 | Port A I/O lines | Bidirectional with 20 mA sink capability on PA1–PA3; PA0 supports analog input (ADC channel 0) and digital I/O. |
| PB0–PB7 | Port B I/O lines | 8-bit port with PB0/PB1 as analog inputs (ADC ch. 1–2); PB3, PB5–PB7 also support analog input (ch. 3–4 depending on variant). |
| VPP | Programming voltage | Required only during OTP programming (12.5 V); left unconnected in normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Oscillator Safeguard (OSG) | Detects main oscillator failure within 1024 cycles and triggers safe reset - prevents runaway operation in safety-critical timing paths. |
| Low Voltage Detector (LVD) | Programmable reset threshold (2.7 V or 3.8 V) with hysteresis - ensures reliable brown-out recovery without software intervention. |
| Watchdog Timer | Configurable timeout (16 ms to 2 s) with windowed enable - guards against firmware lockup in unattended systems like HVAC controllers. |
| Power Saving Modes | Wait mode (CPU halted, peripherals active) and Stop mode (full clock stop, <1 µA current) - extends battery life in portable sensors. |
| Read-Out Protection | Hardware-enforced lock on program memory - prevents unauthorized firmware extraction via external read attempts. |
Applications
| Automotive Door Module | Smart Appliance Control |
|---|---|
Use Scenario: Monitoring window lift position, detecting obstacle contact, and controlling motor direction in power window systems. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop motor control, sampling analog hall-effect sensor and switch inputs, generating PWM drive signals. Use Value: Integrated 20 mA sink outputs directly drive H-bridge gate logic; OSG and LVD ensure fail-safe behavior during vehicle battery fluctuations. |
Use Scenario: Managing wash cycle sequencing, temperature sensing, and user interface in front-load washing machines. IC Role / Device Role / Timing Role: System controller reading NTC thermistors (via ADC), driving indicator LEDs, and communicating with main UI board via UART. Use Value: 64-byte RAM suffices for state-machine variables; 8 MHz clock enables precise 50/60 Hz zero-cross detection for heater control. |
| Industrial Temperature Monitor | Smoke Detector Base Unit |
Use Scenario: Sampling ambient temperature and humidity via analog sensors, logging min/max values, and triggering alarm outputs. IC Role / Device Role / Timing Role: Standalone sensor node MCU performing periodic ADC conversions, storing calibrated data in RAM, and asserting alarm signal on threshold breach. Use Value: –40°C to +125°C rating allows deployment near motors or boilers; Stop mode draws <1 µA for multi-year battery operation. |
Use Scenario: Supervising electrochemical CO sensor biasing, checking smoke chamber optical path integrity, and managing audible alarm timing. IC Role / Device Role / Timing Role: Safety-critical supervisor MCU validating sensor health, executing self-test routines, and initiating evacuation alerts. Use Value: NMI pin handles immediate fault escalation; OSG prevents silent oscillator failure during standby; LVD guarantees reset before undervoltage-induced logic corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST62T20CB6 | 2 KB OTP memory, same 64-byte RAM, identical pinout and peripheral set - differs only in program memory size and package marking. | Preferred where firmware exceeds 1 KB or future code expansion is anticipated; no hardware redesign needed. | Select when firmware growth headroom is required without changing layout or driver software. |
| STM8S003F3P6 | Enhanced 8-bit core (3-stage pipeline), 8 KB Flash, 1 KB RAM, 10-bit ADC, higher clock (16 MHz), but different instruction set and pinout. | Suitable for next-generation designs needing more memory, faster execution, or richer peripherals - requires full firmware and PCB revision. | Choose for new designs prioritizing longevity, debug support (SWIM), and upgrade path - not a drop-in replacement. |
Compared with ST62T00CM6, ST62T20CB6 offers seamless memory scalability within the same footprint and toolchain, while STM8S003F3P6 delivers modern architecture benefits at the cost of full redesign - making the former ideal for incremental upgrades and the latter for green-field projects demanding performance headroom.
Availability
ST62T00CM6 is available at Aetrix Electronics and suitable for automotive body electronics, appliance motor control, and industrial sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for ST62T00CM6 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 devices for industrial, automotive, and consumer markets.
The ST62xx family was engineered for cost-sensitive, high-reliability embedded control - emphasizing robust reset architecture, analog integration, and wide operating conditions to replace discrete logic in legacy systems.
FAQ
Is ST62T00CM6 pin-compatible with ST62T20CB6?
Yes - both devices share identical 16-pin SOIC (SO16) packaging and pin assignments per ST's Doc ID 4563 Rev 5. The only functional difference is program memory size (1 KB vs. 2 KB), meaning PCB layout, power design, and peripheral routing remain fully interchangeable.
Does ST62T00CM6 support in-circuit programming after soldering?
No - ST62T00CM6 uses One-Time Programmable (OTP) memory. Programming occurs pre-assembly using a dedicated ST62 programmer (e.g., STVP) and 12.5 V VPP voltage applied to Pin 16. Field updates are not supported; firmware revisions require device replacement.
What is the minimum supply voltage for reliable ADC operation?
The ADC operates correctly down to 3.0 V per Section 10.11 of the datasheet. At VDD = 3.0 V, full 8-bit linearity is maintained with typical INL of ±1 LSB. Below 3.0 V, LVD activation or reset may occur before ADC degradation becomes dominant.
Can the watchdog timer be disabled in software?
No - the watchdog timer is always enabled after reset and cannot be disabled. It can only be cleared (fed) or reconfigured for longer timeout periods. This design enforces mandatory supervision of firmware execution in safety-aware applications.
ST62T00CM6 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:
- 1KB (1K 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
ST62T00CM6 FAQ
1.How can I place an order for ST62T00CM6 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST62T00CM6 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 ST62T00CM6 reliable?
The price and inventory of ST62T00CM6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST62T00CM6 is usually 5 days.
3.What payment methods are accepted for ST62T00CM6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST62T00CM6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST62T00CM6?
ST62T00CM6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST62T00CM6 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 ST62T00CM6?
For technical support, including ST62T00CM6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST62T00CM6 requirements.
6.How does Aetrix verify that ST62T00CM6 is sourced from the original manufacturer or authorized distributors?
All ST62T00CM6 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 ST62T00CM6 meets industry standards.
7.What is the process for return or replacement of ST62T00CM6?
All ST62T00CM6 units undergo pre-shipment inspection (PSI). If there is an issue with ST62T00CM6, 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 ST62T00CM6 part is unused and in its original packaging.
Return procedure for ST62T00CM6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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