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STMicroelectronics ST62T01CB6
- Part No.:
- ST62T01CB6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
ST62T01CB6.pdf
- Description:
- IC MCU 8BIT 2KB OTP 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,539
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Product details
Overview
ST62T01CB6 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 clock sources up to 8 MHz, and targets embedded control in automotive sensors and industrial monitoring systems.
For engineers reviewing the ST62T01CB6 datasheet, ST62T01CB6 pinout, ST62T01CB6 application, or ST62T01CB6 equivalent, key selection criteria include OTP programmability, 20mA high-sink I/O capability on PA1–PA3, LVD-enabled safe reset, OSG-protected clock stability, and compatibility with PDIP16/SO16/SSOP16 packages for legacy PCB reuse.
Technical Context
The ST62T01CB6 implements a Harvard-architecture 8-bit CPU core with 40 instructions and 9 addressing modes. Its clock system integrates main oscillator (crystal/RC), backup LFAO, and Oscillator Safeguard (OSG) to detect and recover from clock failure - critical for fail-safe operation in automotive subsystems.
Interrupt handling supports 4 vectors plus NMI and RESET, with 9 external interrupt lines mapped across two vectors. Power management includes Wait and Stop modes, where Stop mode reduces current to ≤1 µA at 5V, enabling battery-powered sensor nodes requiring ultra-low standby consumption.
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 timing for real-time control loops. |
| Program Memory | 2KB OTP - provides one-time programmable, tamper-resistant code storage without need for external EPROM programmers. |
| RAM Size | 64 bytes - sufficient for register shadowing, small state machines, and ADC sample buffering in resource-constrained applications. |
| ADC Resolution | 8-bit with 4 analog inputs - delivers 256-level precision for temperature, voltage, or potentiometer sensing in appliance UIs and motor feedback. |
| Max Clock Frequency | 8 MHz - supports 1 µs instruction cycle time for sub-100 µs response in safety-critical interrupt-driven tasks. |
| Supply Voltage Range | 3.0 V to 6.0 V - allows direct interface with 5 V logic and automotive 12 V systems via simple LDO regulation. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive environments and industrial enclosures without forced cooling. |
| I/O Sink Current | 20 mA per PA1–PA3 pin - drives LEDs, relays, or small solenoids directly without external drivers, reducing BOM count. |
Pinout & Package
ST62T01CB6 is housed in a 16-pin plastic DIP package (PDIP16), with 9 multifunctional I/O lines, 4 alternate-function pins, and dedicated power/reset/control terminals. Pin assignments are validated per STMicroelectronics Doc ID 4563 Rev 5, Section 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 3.0–6.0 V supply input; decoupling capacitor required near pin for stable core operation. |
| VSS | Ground reference | Digital ground return path; must be low-impedance and separated from analog ground if ADC used. |
| OSCIN / OSCOUT | Crystal/resonator interface | Connects to external 32 kHz–8 MHz crystal or ceramic resonator; internal oscillator circuitry eliminates need for external capacitors in RC mode. |
| RESET | Asynchronous active-low reset | Hardware-initiated reset with internal pull-up; triggers full initialization including RAM clearing and peripheral reset. |
| NMI | Non-maskable interrupt | Edge-triggered emergency interrupt for critical fault detection (e.g., overtemperature, overcurrent) that cannot be disabled by software. |
| PA0–PA3 | Bidirectional I/O port A | PA1–PA3 support 20 mA sink capability; PA0–PA3 include analog input channels for ADC when configured as inputs. |
| PB0–PB7 | Bidirectional I/O port B | PB0–PB1 serve as timer/counter inputs; PB3, PB5–PB7 support analog input functions depending on device variant. |
| VPP | Programming voltage | 12.5 V input during OTP programming; not used in normal operation - must be tied to VDD or grounded per application requirements. |
Key Features
| Feature | Design Value |
|---|---|
| Oscillator Safeguard (OSG) | Detects main oscillator failure and automatically switches to backup LFAO within 100 µs - prevents system lockup in engine control modules. |
| Low Voltage Detector (LVD) | Monitors VDD and asserts safe reset below 2.7 V (typ.) - protects against corrupted EEPROM writes or erratic MCU behavior during brownout. |
| Configurable Watchdog Timer | Independent 14-bit counter with selectable timeout (1 ms to 2 s) - ensures recovery from infinite loops in unattended industrial controllers. |
| 8-bit Timer/Counter | 7-bit prescaler + 8-bit auto-reload counter - generates precise PWM or capture intervals for motor speed regulation or pulse-width measurement. |
| Read-out Protection | Enables code security by disabling external readback of OTP memory - prevents IP theft in customer-facing consumer electronics. |
Applications
| Automotive Cabin Sensor | Industrial Temperature Monitor |
|---|---|
|
Use Scenario: Monitoring HVAC blower speed and cabin temperature in entry-level vehicles using thermistor and tachometer inputs. IC Role / Device Role / Timing Role: Central controller executing closed-loop fan speed regulation and ADC-based thermal compensation every 50 ms. Use Value: Integrated 4-channel ADC and 20 mA sink outputs drive indicator LEDs directly, eliminating 3 external components versus discrete solutions. |
Use Scenario: Standalone DIN-rail mounted temperature logger recording ambient data every 10 seconds in factory environments. IC Role / Device Role / Timing Role: Low-power data acquisition node using STOP mode between samples, waking via watchdog timer interrupt. |
| Appliance Control Panel | Smart Power Outlet |
|
Use Scenario: User interface and safety logic for microwave ovens, managing keypad scan, display backlight, and door interlock. IC Role / Device Role / Timing Role: Real-time event handler responding to NMI-triggered door-open interrupts within <1 µs to cut power immediately. Use Value: Hardware NMI and LVD ensure compliance with IEC 60335 Class II safety requirements without external supervision ICs. |
Use Scenario: Energy-monitoring outlet with zero-crossing detection, relay control, and RMS voltage/current calculation. IC Role / Device Role / Timing Role: Dual-timer configuration: one for AC line period measurement (PB0 input), second for relay debounce timing. Use Value: 8 MHz max clock enables 12.5 ns resolution on timer inputs - sufficient for accurate 50/60 Hz zero-crossing detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST62T00CB6 | 1 KB OTP memory, identical peripherals and pinout - lacks 1 KB of program space. | Suitable only for simpler firmware (e.g., basic LED sequencers); insufficient for ADC calibration routines or multi-sensor fusion. | Select when code size is <1 KB and cost sensitivity outweighs future firmware scalability needs. |
| ST62E01C | Erasable EPROM version with same 2 KB memory map and instruction set - requires UV erasure and reprogramming. | Used during development and prototyping; not suitable for production due to EPROM window vulnerability and higher unit cost. | Choose for iterative firmware validation before committing to OTP mask; avoid for volume manufacturing. |
Compared with ST62T01CB6, ST62T00CB6 trades memory capacity for lower cost in fixed-function roles, while ST62E01C offers development flexibility at the expense of production robustness and lifecycle control - making ST62T01CB6 optimal for cost-sensitive, field-deployed embedded control.
Availability
ST62T01CB6 is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial temperature monitors, and appliance control panels requiring stable component supply across extended product lifecycles.
Supply support for ST62T01CB6 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, and sensors for automotive, industrial, and consumer markets.
The ST62xx family was engineered for cost-sensitive, reliability-critical embedded control - emphasizing fail-safe clocking, low-voltage resilience, and minimal external component count in harsh environments.
FAQ
Is ST62T01CB6 pin-compatible with ST62T00CB6?
Yes, ST62T01CB6 and ST62T00CB6 share identical PDIP16/SO16/SSOP16 footprints and pin functions. The only hardware difference is program memory size (2 KB vs. 1 KB), allowing drop-in replacement in existing layouts when firmware grows beyond 1 KB - no PCB redesign required.
What clock sources does ST62T01CB6 support?
ST62T01CB6 supports four clock sources: external crystal/ceramic resonator (32 kHz–8 MHz), RC network (internal or external), external clock signal applied to OSCIN, and low-frequency auxiliary oscillator (LFAO) for backup timing during main oscillator failure - all managed by the Oscillator Safeguard circuit.
Does ST62T01CB6 require external components for ADC operation?
No external components are required for basic ADC operation. The 8-bit converter uses internal reference and sampling capacitor. However, for noise-sensitive measurements, a 100 nF ceramic capacitor between VDDA and VSSA is recommended, and analog input signals should be filtered with RC networks to limit bandwidth to <100 kHz per datasheet Section 8.3.4.
How is read-out protection enabled on ST62T01CB6?
Read-out protection is activated by programming Option Byte 0 (OPT0) bit 7 = 1 during OTP programming. Once set, external read attempts return invalid data and halt further memory access - this setting is irreversible and prevents firmware reverse engineering in deployed units.
ST62T01CB6 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
ST62T01CB6 FAQ
1.How can I place an order for ST62T01CB6 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST62T01CB6 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 ST62T01CB6 reliable?
The price and inventory of ST62T01CB6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST62T01CB6 is usually 5 days.
3.What payment methods are accepted for ST62T01CB6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST62T01CB6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST62T01CB6?
ST62T01CB6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST62T01CB6 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 ST62T01CB6?
For technical support, including ST62T01CB6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST62T01CB6 requirements.
6.How does Aetrix verify that ST62T01CB6 is sourced from the original manufacturer or authorized distributors?
All ST62T01CB6 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 ST62T01CB6 meets industry standards.
7.What is the process for return or replacement of ST62T01CB6?
All ST62T01CB6 units undergo pre-shipment inspection (PSI). If there is an issue with ST62T01CB6, 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 ST62T01CB6 part is unused and in its original packaging.
Return procedure for ST62T01CB6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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