STMicroelectronics offers a complete and well-established family of automotive microcontrollers based on the ST7 core, an industry-standard 8-bit architecture, extended by STMicroelectronics to improve support for high-level language programming and to provide additional interrupt handling features.
The ST7 microcontroller series has been designed for mid-range applications with or without CAN (controller area network) and/or LIN (local interconnect network) interfaces. All ST7 devices feature an enhanced instruction set and are available with Flash or ROM program memory.
The ST7 family includes a range of devices from 8 pins to 80 pins and from 1 Kbyte to 60 Kbytes, to fit your budget and needs.
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| Features |
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Memories
- Up to 60 Kbytes of OTP/ROM program memory
- Up to 2 Kbytes of RAM
- On-chip EEPROM (optional), 300 k write/erase cycles
- Readout protection (ROP)/optional write protection (WP) on program memory
- In-Application Programming
Clock, reset and power supply
- Power supply operating range: 3.0 V
to 5.5 V
- Maximum external frequency: 16 MHz
- Internal trimmable 8 MHz RC, PLL optional
- Clock security system (CSS)
- Low voltage detector (LVD)
- Up to 5 efficient Power saving modes
Interrupts
- Nested interrupt controller
- 14 interrupt vectors plus NMI and RESET
- Up to 21 external interrupt lines, software
programmable
- Top-level interrupt (TLI) pin optional
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I/O ports
- Up to 64 fully-programmable I/O lines
- Up to 16 high-current capability I/O lines
Peripherals
- Watchdog timer, window watchdog optional
- Up to 5 timers 16-bit or 8-bit
with input capture, output
compare, PWM generation, motor control features
- ADC 12 or 10-bit, up to 16 inputs with robust I/Os (low-current coupling)
- SPI, SCI, I²C communication interfaces
- CAN interface (2.0B active or passive), LINSCI ™
Instruction set
- 64 basic instructions
- 17 main addressing modes
- 8 x 8 unsigned multiply instructions
Development tools
- Full hardware/software development package
- In-circuit testing capability
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| ST7 - 8-bit microcontrollers for automotive product selector |
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| Applications |
Microcontrollers from the ST7 family are being used in sensor applications, universal motor control, and as secondary microcontrollers in all kinds of body, powertrain and safety applications. Door modules drivers...
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| Tools |
STMicroelectronics offers a full range of development and programming tools for the ST7 family, designed to deliver competitive advantages in terms of productivity and time-to-market.
ST7 8-bit microcontroller tools overview
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| Brochures and product guides |
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| Related information |
LIN (local interconnect network) is an automotive sub-bus system based on a serial communications protocol. ST's automotive microcontrollers support the LIN protocol.
CAN (controller area network) networks are now found in widely varying types of automotive systems. The standard CAN network is designed for speeds up to 1 Mbit/s in noisy environments. Its robustness is a result of powerful error management, multimaster architecture and the specification of the physical layer. It is now used extensively in European automotive markets, and is currently growing in the US automotive market.
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