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STMicroelectronics ST62T01CB3
- Part No.:
- ST62T01CB3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
ST62T01CB3.pdf
- Description:
- IC MCU 8BIT 2KB OTP 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,982
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Product details
Overview
ST62T01CB3 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 across –40°C to +125°C and targets automotive body electronics, appliance control, and industrial sensor interfaces.
For engineers reviewing the ST62T01CB3 datasheet, ST62T01CB3 pinout, ST62T01CB3 application, or ST62T01CB3 equivalent, key selection criteria include its 16-pin PDIP/SO/SSOP package, 8MHz max clock, high-sink I/O (20mA), safe reset architecture, and A/D conversion capability for embedded analog-digital control loops.
Technical Context
The ST62T01CB3 implements a Harvard-architecture 8-bit CPU core with 40 instructions and 9 addressing modes. Its clock system supports crystal, RC, or external clock inputs, plus a backup LFAO and Oscillator Safeguard (OSG) to detect and recover from clock failure.
Reset management includes asynchronous RESET pin, NMI, watchdog timeout, and LVD-triggered safe reset. Power management features Wait and Stop modes, with STOP mode drawing ≤1 µA at 5V - enabling battery-backed operation in low-power sensing nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 8-bit ST6 Harvard CPU with 40 instructions and 9 addressing modes - enables compact firmware and deterministic timing for real-time control. |
| Program Memory | 2KB OTP - provides one-time programmable, tamper-resistant code storage without need for external EPROM programmer. |
| RAM Size | 64 bytes - sufficient for stack, registers, and small state variables in resource-constrained embedded applications. |
| ADC Resolution & Inputs | 8-bit SAR ADC with 4 analog input channels - supports direct voltage monitoring of sensors (e.g., thermistors, potentiometers) without external signal conditioning. |
| Operating Voltage | 3.0V to 6.0V - compatible with 5V legacy systems and tolerant of automotive battery fluctuations. |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive and industrial environments requiring extended thermal reliability. |
| Max Clock Frequency | 8 MHz - balances processing throughput and power efficiency for mid-speed control tasks like motor commutation or display refresh. |
Pinout & Package
ST62T01CB3 is housed in a 16-pin plastic DIP (PDIP16) package with 0.3-inch body width and 0.1-inch lead pitch - compatible with standard through-hole PCB assembly and socket-based prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 3.0–6.0V supply rail; decoupling capacitor required near pin for noise immunity. |
| VSS | Ground reference | Digital ground return path; must be low-impedance and tied to system GND plane. |
| OSCIN / OSCOUT | Crystal/resonator interface | Connects to external quartz crystal (e.g., 4–8 MHz) or ceramic resonator; internal oscillator circuitry drives clock generation. |
| RESET | Asynchronous active-low reset | Hardware-initiated reset on falling edge; debounced externally to prevent spurious resets during power-up or EMI events. |
| NMI | Non-maskable interrupt input | Edge-triggered emergency interrupt (e.g., for fault detection); cannot be disabled by software. |
| PA0–PA3 | Port A bidirectional I/O | PA1–PA3 support 20mA sink capability - drive LEDs, relays, or logic-level MOSFET gates directly without buffer stages. |
| PB0–PB7 | Port B bidirectional I/O | Includes alternate functions: PB3, PB5–PB7 serve as analog inputs (Ain0–Ain3) for ADC channel selection. |
| VPP | Programming voltage | 12.5V input during OTP programming - not used in normal operation; must be grounded or left unconnected in run mode. |
Key Features
| Feature | Design Value |
|---|---|
| Oscillator Safeguard (OSG) | Detects main oscillator failure and forces safe transition to backup LFAO - prevents system lockup in safety-critical timing paths. |
| Low Voltage Detector (LVD) | Monitors VDD and triggers hardware reset if voltage drops below 2.7V (typ.) - avoids erratic CPU behavior during brown-out conditions. |
| High-Sink I/O Outputs | Three pins (PA1–PA3) deliver 20mA sink current - eliminates need for external driver transistors in LED indicators or solenoid control. |
| Two Power-Saving Modes | Wait mode halts CPU while preserving RAM and peripheral clocks; Stop mode disables all clocks and reduces current to ≤1 µA - extends battery life in portable devices. |
| Integrated Watchdog Timer | Configurable digital watchdog with independent clock source - ensures recovery from software hangs without external components. |
Applications
| Automotive Body Control | Smart Appliance Interface |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, and interior lighting in entry-level vehicles. IC Role / Device Role: Main system controller executing logic, reading switch inputs, driving relay/LED loads, and monitoring battery voltage via ADC. Use Value: Integrated LVD and OSG ensure fail-safe operation during engine cranking voltage dips and alternator faults. |
Use Scenario: User interface and motor control in washing machines and dishwashers. IC Role / Device Role: Reads rotary encoder and temperature sensor inputs, drives display segments and motor drivers, manages cycle timing. Use Value: 4-channel ADC enables direct connection of NTC thermistors and pressure transducers; 20mA sink outputs drive indicator LEDs without external drivers. |
| Industrial Sensor Node | Legacy System Upgrade |
|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and voltage in remote equipment cabinets. IC Role / Device Role: Low-power data acquisition node sampling analog sensors, storing readings in RAM, and signaling alerts via GPIO. Use Value: STOP mode current ≤1 µA allows multi-year operation on coin-cell batteries; built-in watchdog prevents firmware crashes during long deployments. |
Use Scenario: Replacement for obsolete 8-bit MCUs (e.g., Intel 8048, Motorola 6805) in legacy industrial controllers. IC Role / Device Role: Pin- and instruction-compatible upgrade path with enhanced peripherals and wider voltage/temperature range. Use Value: PDIP16 footprint matches legacy sockets; OTP memory simplifies field reprogramming versus mask ROM parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST62T00CB3 | 1KB OTP program memory (vs. 2KB), identical peripherals and pinout | Suitable where firmware size <1KB suffices; lower cost but no headroom for feature expansion | Select when code footprint is verified ≤1KB and BOM cost sensitivity outweighs future scalability needs. |
| ST62T20CB3 | Includes on-chip EEPROM (128 bytes) and enhanced I/O drive (30mA sink), same 2KB OTP | Better suited for applications requiring nonvolatile parameter storage (e.g., calibration data) or higher-current actuator drive | Choose when EEPROM retention or >20mA output capability is required - adds cost but improves functional integration. |
Compared with ST62T01CB3, ST62T00CB3 trades memory capacity for cost reduction, while ST62T20CB3 adds EEPROM and stronger I/O at higher unit price - enabling trade-offs between firmware scalability, data persistence, and drive strength without changing PCB layout.
Availability
ST62T01CB3 is available at Aetrix Electronics and suitable for automotive body electronics, smart appliance interfaces, and industrial sensor nodes requiring stable component supply across extended temperature and voltage ranges.
Supply support for ST62T01CB3 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 products for automotive, industrial, and consumer markets.
The ST62xx family was engineered for cost-sensitive, low-to-medium complexity embedded control - emphasizing robustness, integrated peripherals, and wide operating margins to reduce external component count in mass-market applications.
FAQ
Is ST62T01CB3 pin-compatible with ST62T00CB3?
Yes - both devices share identical 16-pin PDIP/SO/SSOP packages and pin assignments, including VDD, VSS, RESET, OSCIN/OSCOUT, and I/O port mapping. The only functional difference is program memory size (2KB vs. 1KB), making ST62T01CB3 a drop-in upgrade where additional firmware space is needed.
What clock sources does ST62T01CB3 support?
ST62T01CB3 supports four clock sources: external crystal or ceramic resonator (up to 8 MHz), RC network, external CMOS clock signal, and internal low-frequency auxiliary oscillator (LFAO) for backup timing. The Oscillator Safeguard (OSG) monitors main oscillator health and automatically switches to LFAO on failure.
Can the ADC operate during STOP mode?
No - the ADC requires the main system clock and is disabled in STOP mode. However, it remains fully operational in WAIT mode, allowing low-power background sampling while CPU is halted. For ultra-low-power wake-on-analog-threshold use cases, external comparators or dedicated low-power ADCs are recommended.
Does ST62T01CB3 require external reset circuitry?
Yes - although it includes an internal Low Voltage Detector (LVD), the RESET pin is asynchronous and requires external RC debounce (e.g., 10kΩ pull-up + 100nF capacitor) to meet minimum pulse width and noise immunity requirements specified in Section 10.9.1 of the datasheet. This ensures reliable reset assertion during power ramp-up and transient events.
ST62T01CB3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Series:
- ST6
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
ST62T01CB3 FAQ
1.How can I place an order for ST62T01CB3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST62T01CB3 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 ST62T01CB3 reliable?
The price and inventory of ST62T01CB3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST62T01CB3 is usually 5 days.
3.What payment methods are accepted for ST62T01CB3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST62T01CB3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST62T01CB3?
ST62T01CB3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST62T01CB3 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 ST62T01CB3?
For technical support, including ST62T01CB3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST62T01CB3 requirements.
6.How does Aetrix verify that ST62T01CB3 is sourced from the original manufacturer or authorized distributors?
All ST62T01CB3 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 ST62T01CB3 meets industry standards.
7.What is the process for return or replacement of ST62T01CB3?
All ST62T01CB3 units undergo pre-shipment inspection (PSI). If there is an issue with ST62T01CB3, 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 ST62T01CB3 part is unused and in its original packaging.
Return procedure for ST62T01CB3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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