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STMicroelectronics ST62T52CB6
- Part No.:
- ST62T52CB6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
ST62T52CB6.pdf
- Description:
- IC MCU 8BIT 1.8KB OTP 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,855
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Product details
Overview
ST62T52CB6 from STMicroelectronics is an 8-bit HCMOS microcontroller with integrated 8-bit A/D converter (4 analog inputs), 128 bytes of data RAM, 1836-byte OTP program memory, auto-reload timer, digital watchdog, and safe reset circuitry - designed for automotive sensor interfaces and industrial control panels operating from 3.0–6.0 V at -40 to +125°C.
For engineers reviewing the ST62T52CB6 datasheet, ST62T52CB6 pinout, ST62T52CB6 application, or ST62T52CB6 equivalent, this device supports direct LED/TRIAC drive (5 I/O lines sinking 30 mA), programmable power-saving modes (Run/Wait/Stop), and on-chip oscillator support for quartz/ceramic/RC timing sources.
Technical Context
The ST62T52CB6 implements a single-cycle 8-bit CPU core with six-level hardware stack, supporting immediate, direct, indirect, and indexed addressing modes. Its memory architecture separates 12-bit program space (OTP), 8-bit data space (RAM + windowed ROM access), and dedicated peripheral register map.
Peripherals include two independent 8-bit timers: one general-purpose counter with 7-bit prescaler, and one auto-reload timer (ARTimer) with dedicated input (PB6/ARTIMin) and output (PB7/ARTIMout) pins. The A/D converter features 8-bit resolution, four selectable analog inputs (PA4–PA5, PC2–PC3), and conversion time of 100 µs typical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 8-bit HCMOS CPU with 6-level hardware stack and 12-bit program counter |
| Program Memory | 1836-byte One-Time Programmable (OTP) ROM - non-erasable, production-ready firmware storage |
| Data RAM | 128 bytes - includes 60-byte base RAM plus bank-switched expansion up to 128 bytes total |
| A/D Converter | 8-bit resolution, 4-channel analog input (PA4, PA5, PC2, PC3), 100 µs conversion time |
| Timer System | Dual 8-bit timers: general-purpose counter + auto-reload timer (ARTimer) with dedicated I/O pins PB6/PB7 |
| I/O Capability | 9 fully configurable I/O pins; 5 lines sink 30 mA - enable direct LED or TRIAC driving without external drivers |
| Operating Range | 3.0–6.0 V supply, -40°C to +125°C ambient - qualified for under-hood automotive and harsh industrial environments |
Pinout & Package
ST62T52CB6 is housed in a 16-pin Plastic Dual In-line Package (PDIP16), with 0.3-inch body width and standard through-hole mounting. Pin functions are validated per STMicroelectronics datasheet Rev. 4 (March 2009), Figure 2 and Section 1.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PB0 | Port B bit 0 | Configurable I/O; sinks 30 mA - used for LED anode control or TRIAC gate drive |
| PB2–PB3 | Port B bits 2–3 | Configurable I/O; pull-up state set by option byte - supports interrupt-on-change or analog sensing |
| PB6 / ARTIMin | Auto-reload timer input | External clock source input for ARTimer - enables precise event timing or frequency measurement |
| PB7 / ARTIMout | Auto-reload timer output | Programmable pulse output - drives timing-critical peripherals or generates PWM-like signals |
| PA4–PA5 | Port A bits 4–5 | Analog input channels for A/D converter - connect directly to sensors (e.g., thermistors, potentiometers) |
| PC2–PC3 | Port C bits 2–3 | Additional A/D input channels - expand analog monitoring capability without external MUX |
| RESET | Active-low reset input | Hardware reset initiation; internal low-voltage detector ensures safe restart during brownout |
| NMI | Non-maskable interrupt | Falling-edge-triggered emergency interrupt - used for critical fault detection (e.g., overtemperature) |
Key Features
| Feature | Design Value |
|---|---|
| Safe Reset Architecture | Integrated low-voltage detector + digital watchdog - prevents erratic operation during power transients |
| Direct Drive I/O | 5 pins rated for 30 mA sink - eliminates discrete driver transistors in lighting and actuator control |
| Flexible Oscillator Support | On-chip oscillator accepts quartz crystal, ceramic resonator, or RC network - reduces BOM count and layout area |
| User-Selectable Data Storage | Look-up tables and constants stored in program memory; accessed via 64-byte data window register (DWR) |
| Power-Saving Modes | Run, Wait, and Stop modes - reduce current to <1 µA in Stop mode for battery-backed applications |
Applications
| Automotive Body Control | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Centralized control of door locks, interior lighting, and mirror adjustment in entry-level vehicles. IC Role / Device Role / Timing Role: Main MCU executing logic, reading switch inputs, driving LEDs and relays via direct-sink I/O. Use Value: Eliminates need for external driver ICs; 125°C rating supports placement near fuse boxes or junction blocks. |
Use Scenario: Analog signal conditioning and local decision-making in HVAC temperature controllers. IC Role / Device Role / Timing Role: A/D acquisition of thermistor and humidity sensor outputs; ARTimer-based fan speed modulation. Use Value: On-chip 4-channel ADC and auto-reload timer enable closed-loop control without external timing components. |
| Appliance Motor Control | Smart Power Outlet |
|
Use Scenario: Speed and direction control of universal motors in washing machines and vacuum cleaners. IC Role / Device Role / Timing Role: Generates phase-controlled TRIAC gate pulses using PB0–PB3 sink outputs and ARTIMout timing. Use Value: 30 mA sink capability drives TRIAC gates directly; safe reset prevents runaway during voltage dips. |
Use Scenario: Energy-monitoring outlet with load switching, voltage sensing, and tamper detection. IC Role / Device Role / Timing Role: Measures AC line voltage via A/D (PA4/PA5), triggers relay via PB6/PB7, logs events using RAM retention. Use Value: Integrated A/D + high-current I/O + watchdog allows compact, self-contained design meeting UL 498 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST62T62CB6 | Includes 64-byte data EEPROM; identical OTP size, pinout, and peripheral set | Requires non-volatile parameter storage (e.g., calibration data, user settings) | Select when field-updatable configuration or runtime data logging is required |
| ST62E62CDW6 | Erasable EPROM version; UV-erasable, same OTP-equivalent functionality and timing | Prototyping, iterative firmware development, or low-volume customization | Choose for lab validation or small-batch production where code changes are frequent |
Compared with ST62T52CB6, ST62T62CB6 adds EEPROM for persistent data but shares identical packaging and I/O drive strength, while ST62E62CDW6 trades OTP permanence for reprogrammability - making the former ideal for mass production and the latter for engineering validation.
Availability
ST62T52CB6 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and appliance motor control systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ST62T52CB6 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The ST62xx family was engineered specifically for cost-sensitive, medium-complexity embedded control - emphasizing robustness, integrated peripherals, and minimal external component count in harsh environments.
FAQ
Is ST62T52CB6 pin-compatible with ST62T62CB6?
Yes - both devices share identical PDIP16 packaging, pin assignments, and electrical I/O characteristics. The only functional difference is the presence of 64-byte data EEPROM in ST62T62CB6; all registers, memory maps, and peripheral behavior remain consistent across reset and runtime operation.
Does ST62T52CB6 support in-circuit programming after soldering?
No - ST62T52CB6 uses One-Time Programmable (OTP) memory. Programming must occur prior to PCB assembly using ST's ST62xx-EMU2 emulator system connected via parallel port. Once programmed, firmware cannot be modified or erased in-system.
What is the maximum sink current per I/O pin on ST62T52CB6?
Five designated I/O pins (PB0, PB2–PB3, PB6–PB7) are rated for 30 mA DC sink current each, verified per datasheet Section 6.3. Other pins support ≤10 mA. This rating enables direct drive of LEDs, small relays, and TRIAC gates without external buffers.
Can the ST62T52CB6 operate without an external crystal?
Yes - its on-chip oscillator supports RC networks, ceramic resonators, or quartz crystals. An RC solution (e.g., 1–4.7 MΩ + 22 pF) provides sufficient accuracy for non-timing-critical applications like button debouncing or LED blinking, reducing component count and cost.
ST62T52CB6 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:
- 1.8KB (1.8K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- -
- RAM Size:
- 128 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:
ST62T52CB6 FAQ
1.How can I place an order for ST62T52CB6 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST62T52CB6 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 ST62T52CB6 reliable?
The price and inventory of ST62T52CB6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST62T52CB6 is usually 5 days.
3.What payment methods are accepted for ST62T52CB6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST62T52CB6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST62T52CB6?
ST62T52CB6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST62T52CB6 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 ST62T52CB6?
For technical support, including ST62T52CB6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST62T52CB6 requirements.
6.How does Aetrix verify that ST62T52CB6 is sourced from the original manufacturer or authorized distributors?
All ST62T52CB6 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 ST62T52CB6 meets industry standards.
7.What is the process for return or replacement of ST62T52CB6?
All ST62T52CB6 units undergo pre-shipment inspection (PSI). If there is an issue with ST62T52CB6, 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 ST62T52CB6 part is unused and in its original packaging.
Return procedure for ST62T52CB6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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