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ST7GEME4 数据表(PDF) 5 Page - STMicroelectronics |
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ST7GEME4 数据表(HTML) 5 Page - STMicroelectronics |
5 / 28 page ST7GEME4 Introduction 5/28 1 Introduction The ST7GEME4 device is a member of the ST7 microcontroller family designed for USB applications. All devices are based on a common industry-standard 8-bit core, featuring an enhanced instruction set. The ST7GEME4 is factory-programmed ROM devices and as such are not reprogrammable. It operates at a 4 MHz external oscillator frequency. Under software control, all devices can be placed in Halt mode, reducing power consumption when the application is in idle or stand-by state. The enhanced instruction set and addressing modes of the ST7 offer both power and flexibility to software developers, enabling the design of highly efficient and compact application code. In addition to standard 8-bit data management, all ST7 microcontrollers feature true bit manipulation, 8x8 unsigned multiplication and indirect addressing modes. The ST7GEME4 includes an ST7 Core, up to 16 Kbytes of program memory, up to 512 bytes of user RAM and the following on-chip peripherals: ● USB full speed interface with 7 endpoints, programmable in/out configuration and embedded 3.3 V voltage regulator and transceivers (no external components are needed). ● ISO 7816-3 UART interface with programmable baud rate from 372 clock pulses up to 11.625 clock pulses ● Smartcard supply block able to provide programmable supply voltage and I/O voltage levels to the smartcards ● Low voltage reset ensuring proper power-on or power-off of the device (selectable by option) ● 8-bit timer (TBU) |
类似零件编号 - ST7GEME4 |
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类似说明 - ST7GEME4 |
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