Key facts
- Brand
- STMicroelectronics
- Model
- ST72E311
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-04
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ST ST72E311 ST72T311 8-BIT MCU WITH 8 TO 16K OTP/EPROM 384 TO 512 BYTES RAM ADC WDG SCI SPI AND 2 TIMERShandbook
The ST72T311 is an 8‑bit microcontroller from STMicroelectronics featuring up to 16 KB OTP/EPROM program memory, 384‑512 bytes of RAM, a 16‑bit CPU running at up to 16 MHz, and a range of on‑chip peripherals including ADC, SPI, SCI, watchdog timer and two 16‑bit timers.
The document includes a detailed pin‑out for multiple package types (TQFP44, PSDIP42, PSDIP56, TQFP64), electrical characteristics, memory map, peripheral descriptions, power‑saving modes, and ordering information for the various device variants.
STMicroelectronics ST72E311 specifications
| Program Memory | 8 KB to 16 KB OTP/EPROM |
|---|---|
| Data RAM | 384 bytes to 512 bytes (including 256 bytes stack) |
| CPU Frequency | 8 MHz max (16 MHz oscillator) |
| Operating Supply Voltage | 3 V to 5.5 V |
| Temperature Range | -40 °C to +125 °C |
| Package Types | TQFP44, PSDIP42, PSDIP56, TQFP64 |
| I/O Lines | 44 pins (ST72T311N) or 32 pins (ST72T311J) |
| Timers | Two independent 16‑bit timers |
| SPI Interface | Synchronous Serial Peripheral Interface (SPI) |
| SCI Interface | Asynchronous Serial Communications Interface (SCI) |
| Watchdog | Digital Watchdog timer |
All STMicroelectronics ST72E311 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum program memory size of the ST72T311?
The device supports up to 16 KB of OTP/EPROM program memory.
How many I/O pins are available on the ST72T311?
The ST72T311N version provides 44 I/O pins, while the ST72T311J version provides 32 I/O pins.
How many I/O pins are available on the ST72T311N version?
The ST72T311N version provides 44 multifunctional I/O pins.
What is the maximum CPU clock frequency?
The maximum CPU frequency is 8 MHz (with a 16 MHz oscillator).