STMicroelectronics ST7FLIT10BY0M6

Overview

ST7FLIT10BY0M6 from STMicroelectronics is an 8-bit Flash microcontroller with 2 KB XFlash program memory, 256 bytes RAM, and 128 bytes data EEPROM. It integrates a 10-bit ADC with op-amp, dual 12-bit auto-reload timers (4 PWM outputs), SPI interface, analog comparator, and enhanced reset/LVD/AVD supervision. Designed for low-power embedded control in industrial sensors and motor drive feedback circuits.

For engineers reviewing the ST7FLIT10BY0M6 datasheet, ST7FLIT10BY0M6 pinout, ST7FLIT10BY0M6 application, or ST7FLIT10BY0M6 equivalent, key selection criteria include its 2.7–5.5 V operating range, 20 mA high-sink I/O capability on 7 pins, 1% internal RC oscillator, and support for In-Circuit Programming (ICP) and In-Application Programming (IAP) without external voltage programming.

Technical Context

This MCU implements an industry-standard ST7 8-bit core with true bit manipulation, 8×8 unsigned multiply, and 17 addressing modes. Its peripheral set includes two independent 12-bit auto-reload timers (AT4 and AT2) delivering four PWM outputs, input capture, and pulse generation - all synchronized to a configurable 32 MHz internal clock source.

The analog subsystem combines a 7-channel 10-bit ADC (with fixed-gain op-amp), analog comparator with interrupt capability, and programmable internal voltage reference. Clock management supports crystal/resonator, external clock, or internal 1% RC oscillator - optionally multiplied by PLL to 4 MHz or 8 MHz.

Key Specifications

Pinout & Package

ST7FLIT10BY0M6 is packaged in a 20-pin SO (300 mil) surface-mount package with 0.65 mm pitch and standard JEDEC MS-013AC footprint. Pin functions are validated per ST's official datasheet Rev 6 (June 2008), Figure 2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with ST7FLIT10BY0M6, the ST7FLITE15BY0M6 offers double Flash and added analog comparator at identical package and pinout - ideal for feature expansion without board redesign; the STM8S003F3P6 provides significantly higher performance and memory but requires external signal conditioning for low-level analog inputs.

Availability

ST7FLIT10BY0M6 is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor feedback systems, smart power outlets, and low-power metering modules requiring stable component supply across extended product lifecycles.

Supply support for ST7FLIT10BY0M6 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 ST7LITE1xB family targets cost-sensitive, low-power embedded control applications - emphasizing Flash flexibility, analog integration, and robust power management for resource-constrained designs.

FAQ

What is the maximum operating frequency of the ST7FLIT10BY0M6?

The ST7FLIT10BY0M6 supports up to 8 MHz CPU frequency: achieved via external 16 MHz crystal with internal /2 divider, or internal 1 MHz RC oscillator multiplied by PLL ×4 or ×8. The 32 MHz input clock is dedicated to the auto-reload timer and does not drive the CPU core.

Does the ST7FLIT10BY0M6 support debug interfaces?

Yes - it integrates an on-chip Debug Module (DM) supporting In-Circuit Debugging (ICD) via the ICC interface (pins PA6/ICCCLK and PA5/ICCDATA). No external JTAG adapter is required; debugging is enabled through ST's proprietary ICC protocol using standard UART-level signaling.

Can the internal op-amp be used independently of the ADC?

No - the fixed-gain op-amp is hardwired exclusively as the programmable gain stage for the 10-bit ADC's analog input path. It cannot be configured as a standalone general-purpose op-amp; its output is not accessible outside the ADC conversion chain.

What are the valid package options for this part number?

ST7FLIT10BY0M6 is specified only in the 20-pin SO (300 mil) package per ST's ordering information (Section 15.2, Rev 6). While the ST7LITE1xB family includes DIP20, SO16, and QFN20 variants, the "Y0M6" suffix explicitly denotes the SO20 variant with M6 (tape-and-reel) packaging and industrial temperature grade (−40°C to +85°C).