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ST72411R Scheda tecnica(PDF) 4 Page - STMicroelectronics |
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ST72411R Scheda tecnica(HTML) 4 Page - STMicroelectronics |
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4 / 71 page  ST72411R 4/71 1 GENERAL DESCRIPTION 1.1 INTRODUCTION The ST72411R devices are members of the ST7 microcontroller family. They are designed for Smartcard reader applications. All ST72411R family devices are based on a com- mon industry-standard 8-bit core, featuring an en- hanced instruction set. The ST72C411R devices feature single-voltage FLASH memory with byte-by-byte In-Situ Pro- gramming (ISP) capability. Under software control, all devices can be placed in WAIT, SLOW, or HALT mode, reducing power consumption when the application is in idle or standby 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 micro- controllers feature true bit manipulation, 8x8 un- signed multiplication and indirect addressing modes. Figure 1. Device Block Diagram 8-BIT CORE ALU OSC_SEL CONTROL PROGRAM (4K Bytes) VSS RESE T RAM (256 Bytes) PORT A PA7:0 (8 bits) 8-BIT TIMER PORT B PB6:0 (7 bits) VDD OSCIN INTEGR ATED LVDS MEMORY 7.16 MHZ OSCILLATOR SC SUPP LY SUPE RVISOR SC_PWR LCD DRIVER + LCD RAM (32x4) SEG31:0 (32 segments) COM3:0 (4 coms) VREF (SSS) 4 |
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