STMicroelectronics STM32F100ZDT6BTR

Overview

STM32F100ZDT6BTR from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 MCU with 384 KB Flash, 32 KB SRAM, 112 I/Os in LQFP144 package, operating at up to 24 MHz. It integrates dual 12-bit DACs, a 12-bit 1.2 µs ADC (16 channels), RTC with VBAT support, and 11 communication interfaces including 3 USARTs, 3 SPIs, and 2 I²Cs - deployed in industrial HMI control panels requiring real-time analog I/O and display interface.

For engineers reviewing the STM32F100ZDT6BTR datasheet, STM32F100ZDT6BTR pinout, STM32F100ZDT6BTR application, or STM32F100ZDT6BTR equivalent, key selection criteria include Flash/SRAM size match, LQFP144 footprint compatibility, 24 MHz max CPU frequency, dual DAC support for analog output generation, and integrated FSMC for parallel LCD or NOR flash interfacing.

Technical Context

The device implements an Arm Cortex-M3 core with single-cycle multiply and hardware divide, coupled with a flexible static memory controller (FSMC) supporting SRAM, PSRAM, and NOR memories in 4 chip-select configurations. Its clock system includes dual oscillators (4–24 MHz HSE and 32.768 kHz LSE), programmable PLL, and factory-trimmed 8 MHz HSI RC source.

Peripheral integration centers on deterministic real-time control: seven 16-bit general-purpose timers, one advanced-control timer with 6-channel PWM and dead-time generation, two watchdogs, and DMA-driven peripherals including ADC, DAC, USARTs, and SPIs - enabling synchronized analog capture, waveform generation, and multi-interface data routing without CPU overhead.

Key Specifications

Pinout & Package

LQFP144 package (20 × 20 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad for enhanced heat dissipation in continuous operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit MCU applications.

Compared with STM32F103ZET6, the STM32F100ZDT6BTR trades Flash capacity for integrated FSMC and dual DACs - making it superior for display-driven industrial controllers. Against STM32F072ZBT6, it delivers higher determinism, analog generation, and memory interface flexibility at the cost of higher BOM and power.

Availability

STM32F100ZDT6BTR is available at Aetrix Electronics and suitable for industrial HMI panels, smart power meters, PLC I/O modules, and medical infusion pump controllers requiring stable component supply across long-lifecycle production programs.

Supply support for STM32F100ZDT6BTR 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 STM32F100 Value Line targets cost-sensitive, high-volume embedded applications requiring rich peripheral integration - especially where analog I/O, display interface, and deterministic real-time control are critical.

FAQ

What is the maximum operating frequency of the STM32F100ZDT6BTR?

The STM32F100ZDT6BTR operates at a maximum CPU frequency of 24 MHz, achieved via its internal PLL driven by either the 4–24 MHz HSE crystal oscillator or the 8 MHz HSI RC oscillator. This frequency is fixed by the Cortex-M3 design and validated across the industrial temperature range (–40 °C to +85 °C) per DS5944 Rev 11 Section 5.3.1.

Does the STM32F100ZDT6BTR support external memory expansion?

Yes - it integrates a Flexible Static Memory Controller (FSMC) with four independent chip-select outputs, supporting asynchronous and synchronous SRAM, PSRAM, and NOR flash memory. The FSMC is accessible via dedicated address/data bus pins on Port D, E, F, and G, and is documented in Section 2.2.5 and Table 30–37 of DS5944 Rev 11.

Can the STM32F100ZDT6BTR drive a parallel LCD interface?

Yes - it features a dedicated LCD parallel interface compliant with 8080 and 6800 bus protocols, mapped to Port D and Port E pins. This interface supports up to 8080-mode 16-bit data bus operation and is explicitly listed in the "Features" section of DS5944 Rev 11, enabling direct connection to graphic TFT or segment LCDs without external controllers.

What debug interfaces does the STM32F100ZDT6BTR provide?

The device supports Serial Wire Debug (SWD) and full JTAG via the SWJ-DP (Serial Wire JTAG Debug Port). SWD uses only SWCLK and SWDIO pins (PA14/PA13), reducing debug footprint versus traditional 5-pin JTAG, while retaining full flash programming, breakpoint, and real-time variable inspection capabilities per Section 2.2.28 of DS5944 Rev 11.