My Inquiry
My Account
STMicroelectronics ST62T09CB6
- Part No.:
- ST62T09CB6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
ST62T09CB6.pdf
- Description:
- IC MCU 8BIT 1KB OTP 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,049
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ST62T09CB6 from STMicroelectronics is an 8-bit OTP microcontroller with 2KB program memory, 64 bytes RAM, integrated 8-bit ADC (8-channel), dual timers (including watchdog), and oscillator safeguard. It operates from 3.0V to 6.0V, supports Wait/Stop low-power modes, and targets embedded control in automotive body electronics and industrial sensors.
For engineers reviewing the ST62T09CB6 datasheet, ST62T09CB6 pinout, ST62T09CB6 application, or ST62T09CB6 equivalent, key selection criteria include its 2KB OTP capacity, 8-channel ADC resolution and sampling rate, LVD-enabled safe reset behavior, OSG fault detection for crystal oscillators, and high-sink I/O capability (20mA) on four pins - all critical for robust real-time sensor interface designs.
Technical Context
The ST62T09CB6 implements a Harvard-architecture 8-bit CPU core with 40 instructions and 9 addressing modes. Its clock system integrates main oscillator (crystal/RC/external), backup LFAO, and Oscillator Safeguard (OSG) that detects clock failure and forces safe reset.
Interrupt handling supports 4 vectors plus NMI and RESET, with 12 external interrupt lines mapped across two vectors. The 8-bit ADC features programmable conversion speed and auto-triggering from timer overflow, while the 8-bit timer includes a 7-bit prescaler and configurable interrupt-on-overflow mode.
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 One-Time Programmable (OTP) - supports field-deployed firmware without erasure cycles; read-out protection prevents unauthorized code extraction. |
| RAM Size | 64 bytes data RAM - sufficient for small state machines and sensor data buffering in cost-sensitive applications. |
| ADC Resolution & Channels | 8-bit successive approximation ADC with 8 analog input channels - delivers 256-level precision for thermistor, potentiometer, and battery voltage monitoring. |
| Operating Voltage | 3.0V to 6.0V supply range - compatible with 3.3V and 5V systems, including automotive 12V-derived rails with local regulation. |
| Max Clock Frequency | 8MHz system clock - ensures sub-125ns instruction cycle time for fast response to interrupts and I/O events. |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive and industrial environments requiring extended thermal reliability. |
| Power Modes | Wait and Stop modes with wake-up via interrupt or reset - reduces active current to 1.2mA (typ.) in Wait and 2μA (typ.) in Stop for battery-powered longevity. |
Pinout & Package
ST62T09CB6 is housed in a 20-pin Plastic Dual In-line Package (PDIP20), with 12 multifunctional I/O lines, 4 high-sink outputs (20mA), and dedicated pins for reset, oscillator, power, and programming (VPP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive Supply | Main power input (3.0–6.0V); decoupling capacitor required near pin for noise immunity in mixed-signal operation. |
| VSS | Ground Reference | Digital ground return path; must be connected to system GND with low-impedance trace to minimize ADC offset error. |
| OSCIN / OSCOUT | Crystal Oscillator Interface | Connects to external crystal or ceramic resonator (1–8MHz); OSG monitors frequency stability and triggers reset on failure. |
| RESET | Asynchronous Reset Input | Active-low pin with internal pull-up; initiates hardware reset sequence including register initialization and stack pointer reload. |
| 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 20mA sink capability - drive LEDs, relays, or logic-level MOSFET gates directly without external buffers. |
| PB0–PB7 | Port B I/O Lines | 8-bit port supporting alternate functions including ADC inputs (Ain0–Ain7), timer clock input, and external interrupt sources. |
| VPP | Programming Voltage | 12.5V input during OTP programming; not used in normal operation - requires isolation from 5V rail to prevent latch-up. |
Key Features
| Feature | Design Value |
|---|---|
| Oscillator Safeguard (OSG) | Hardware circuit continuously monitors main oscillator frequency; asserts reset if deviation exceeds ±30% - eliminates silent clock failure in safety-critical control. |
| Low Voltage Detector (LVD) | Internal comparator triggers safe reset when VDD drops below 2.7V (±0.1V) - prevents erratic execution during brownout conditions. |
| High-Sink I/O Outputs | Four PA pins deliver 20mA sink current each - directly drive indicators or small solenoids without external drivers, reducing BOM count. |
| 8-Channel ADC with Auto-Trigger | Configurable sampling rate up to 100ksps; timer overflow can initiate conversion - enables synchronized sensor acquisition without CPU polling overhead. |
| Watchdog Timer with Window Mode | Configurable timeout (16ms–2.1s); windowed enable prevents accidental feed - ensures firmware liveness in unattended industrial controllers. |
Applications
| Automotive Body Control | Industrial Temperature Monitoring |
|---|---|
|
Use Scenario: Centralized control of door locks, interior lighting, and mirror adjustment in entry-level vehicles. IC Role / Device Role: Main system controller executing logic, reading switch inputs, driving actuators via high-sink I/O, and monitoring battery voltage via ADC. Use Value: Integrated LVD and OSG ensure fail-safe behavior during vehicle cranking (voltage dip) or alternator failure (clock instability), meeting ISO 16750-2 requirements. |
Use Scenario: Standalone temperature logger in HVAC ducts or factory machinery enclosures. IC Role / Device Role: Reads thermistor network via 8-channel ADC, stores calibrated values in RAM, and transmits via UART using timer-generated baud rate. Use Value: −40°C to +125°C operating range and Stop-mode current of 2μA enable multi-year battery life in maintenance-free deployments. |
| Appliance Motor Control | Smart Sensor Node |
|
Use Scenario: Fan speed regulation and overheat protection in refrigerators and washing machines. IC Role / Device Role: Measures motor winding temperature via ADC, controls triac gate timing using timer PWM output, and shuts down on NMI-triggered thermal fault. Use Value: NMI pin provides hardware-level response to critical overtemperature events, bypassing software latency for immediate power cutoff. |
Use Scenario: Wireless environmental sensor node collecting humidity, pressure, and ambient light data. IC Role / Device Role: Interfaces multiple analog sensors via ADC, manages low-power scheduling using Wait/Stop modes, and prepares data for RF transmission. Use Value: 2KB OTP allows firmware updates during manufacturing without retooling; 64-byte RAM suffices for sensor fusion buffer before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST62T08CB6 | 1KB OTP memory, 4-channel ADC - smaller code footprint and reduced analog channel count. | Suitable for simpler control tasks (e.g., single-sensor thermostats) where 2KB firmware size is unnecessary. | Select when firmware size is ≤1KB and only 4 analog inputs are needed - lowers unit cost without sacrificing core peripherals. |
| ST62T10CB6 | 4KB OTP memory, same 8-channel ADC and I/O - doubles program storage for complex state machines or communication stacks. | Required for applications integrating UART bootloader, EEPROM emulation, or multi-protocol sensor fusion. | Choose when firmware exceeds 2KB or future feature expansion is anticipated - maintains identical pinout and peripheral compatibility. |
Compared with ST62T08CB6, the ST62T09CB6 offers double program memory and full 8-channel ADC support at minimal cost premium; versus ST62T10CB6, it trades 2KB of headroom for tighter BOM control in volume production where code size is stable and known.
Availability
ST62T09CB6 is available at Aetrix Electronics and suitable for automotive body electronics, industrial temperature monitoring, appliance motor control, and smart sensor node designs requiring stable component supply across extended product lifecycles.
Supply support for ST62T09CB6 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 management ICs, and sensors for automotive, industrial, and consumer markets.
The ST62xx family was engineered for cost-sensitive, resource-constrained embedded control - emphasizing OTP flexibility, analog integration (ADC), and hardware safety features (OSG, LVD) in compact packages for automotive and industrial use cases.
FAQ
What programming voltage is required for ST62T09CB6 OTP programming?
The ST62T09CB6 requires 12.5V applied to the VPP pin during OTP programming. This voltage must be stable and isolated from the 5V logic supply to prevent latch-up. Programming is performed using ST's dedicated ST62xx programmers (e.g., ST62xx-PROG) and validated firmware tools - no in-system reprogramming capability exists after initial programming.
Does ST62T09CB6 support crystal oscillator frequencies above 8MHz?
No. The ST62T09CB6's oscillator circuit is rated for a maximum frequency of 8MHz with crystal or ceramic resonator sources. Exceeding this limit risks timing violation, increased jitter, or failure to start - confirmed by Section 10.5.3 of the datasheet specifying 1–8MHz operation with 12pF load capacitance and guaranteed startup at 25°C.
How does the Oscillator Safeguard (OSG) detect clock failure?
The OSG circuit compares the main oscillator frequency against an internal RC reference. If the measured frequency deviates by more than ±30% for longer than 1ms, OSG asserts the reset signal. This detection occurs independently of CPU operation and remains active in Wait/Stop modes - ensuring clock integrity even during low-power states.
Can ST62T09CB6 ADC operate during Stop mode?
No. The ADC requires the main clock domain to function and is automatically disabled in Stop mode. However, the device can wake from Stop mode via external interrupt or reset, then initiate ADC conversion in Run mode - enabling ultra-low-power periodic sampling with controlled wake-up intervals.
ST62T09CB6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 20-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:
- 12
- 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:
- Through Hole
- Supplier Device Package:
ST62T09CB6 FAQ
1.How can I place an order for ST62T09CB6 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST62T09CB6 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 ST62T09CB6 reliable?
The price and inventory of ST62T09CB6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST62T09CB6 is usually 5 days.
3.What payment methods are accepted for ST62T09CB6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST62T09CB6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST62T09CB6?
ST62T09CB6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST62T09CB6 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 ST62T09CB6?
For technical support, including ST62T09CB6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST62T09CB6 requirements.
6.How does Aetrix verify that ST62T09CB6 is sourced from the original manufacturer or authorized distributors?
All ST62T09CB6 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 ST62T09CB6 meets industry standards.
7.What is the process for return or replacement of ST62T09CB6?
All ST62T09CB6 units undergo pre-shipment inspection (PSI). If there is an issue with ST62T09CB6, 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 ST62T09CB6 part is unused and in its original packaging.
Return procedure for ST62T09CB6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ST62T09CB6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
