描述 Description

The ST7260xx devices are members of the ST7 microcontroller family designed for USB applications running from 4.0 to 5.5 V. Different package options offer up to 19 I/O pins.
All devices are based on a common industry-standard 8-bit core, featuring an enhanced instruction set and are available with Flash program memory. The ST7 family architecture offers both power and flexibility to software developers, enabling the design of highly efficient and compact application code.
The on-chip peripherals include a low speed USB interface and an asynchronous SCI interface. For power economy, the microcontroller can switch dynamically into, Slow, Wait, Active Halt or Halt mode when the application is in idle or stand-by state.
Typical applications include consumer, home, office and industrial products.

特性 Features

Instruction set63 basic instructions17 main addressing modes8 x 8 unsigned multiply instruction
Communications interfaceAsynchronous serial communications interface (SCI)
Memories4 or 8 Kbytes program memory: high density Flash (HDFlash), or FastROM with readout and write protectionIn-application programming (IAP) and incircuit programming (ICP)384 bytes RAM memory (128-byte stack)
USB (Universal Serial Bus) interfaceDMA for low speed applications compliant with USB 1.5 Mbs (version 2.0) and HID specifications (version 1.0)Integrated 3.3 V voltage regulator and transceiversSupports USB DFU class specificationSuspend and Resume operations3 Endpoints with programmable In/Out configuration
Clock, reset and supply managementRun, Wait, Slow and Halt CPU modes12 or 24 MHz oscillatorRAM Retention modeOptional low voltage detector (LVD)
2 timersProgrammable Watchdog16-bit Timer with 2 Input Captures, 2 Output Compares, PWM output and clock input
Development toolsVersatile development tools including , software library, hardware emulator, programming boards, HID and DFU software layer
Up to 19 I/O portsUp to 8 high sink I/Os (10 mA at 1.3 V)2 very high sink true open drain I/Os (25 mA at 1.5 V)Up to 8 lines with interrupt capability