P89C51RA2 RB2 RC2 RD2 2
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P89C51RA2 RB2 RC2 RD2 2
INTEGRATED CIRCUITSP89C51 RA2xx/RB2xx/RC2xx/RD2xx80C51 8-bit Flash microcontroller family8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1 KB RAM P89C51RA2 RB2 RC2 RD2 2 MPreliminary dataSupersedes data of 2002 May 202002 Jul 18PhilipsSemiconductorsi PHILIPSPhilips Semiconductors80C51 8-bit Flash microcontroller familyP89C51 RA2/RB2/RC2/RD2XX8KBi'16KB'32KB/64KB ISP/IAP Flash with 512B.'512B1'512B.<1KB RAMDESCRIPTIONThe P8SC51RA2'RB2'RC2/RD2xx centsns a non-volatile P89C51RA2 RB2 RC2 RD2 2 8KB'16KB'32KB/64KB Flash program memory mat IS both parallel programmable and sena In-System and In-Application Programmable. In-System Programming (IP89C51RA2 RB2 RC2 RD2 2
SP) alkyws me user to download new code whfe the microcontroller sits in the application. In-Appllcation Programming (IAP) means that the microcontrolINTEGRATED CIRCUITSP89C51 RA2xx/RB2xx/RC2xx/RD2xx80C51 8-bit Flash microcontroller family8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1 KB RAM P89C51RA2 RB2 RC2 RD2 2 boot loader) program in ROM allows serial In-System programming of tire Rash memory via the UART without the need for a loader in me Flash code. For In-Application Programming, me user program erases and reprograms me Flash memory by use of standard routines contained in ROM.The device supports 6-do P89C51RA2 RB2 RC2 RD2 2 ck,'l 2-ciock mode selection by programming a Flash bit using parallel programming or In-System Programming. In addition, an SFR bit (X2) in the dockP89C51RA2 RB2 RC2 RD2 2
control register (CKCON) also selects between 6-clock/12-clock mode.Additionally, when in 6-dock mode, peripherals may use either 6 docks per machine INTEGRATED CIRCUITSP89C51 RA2xx/RB2xx/RC2xx/RD2xx80C51 8-bit Flash microcontroller family8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1 KB RAM P89C51RA2 RB2 RC2 RD2 2 ce is a Single-Chip 8-BH Microcontroller manufactured in an advanced CTOS process and is a derivative of the 80C51 microcontroller family. The instruction set is 100% compatible with the 80C51 instruction set.The device also has four 8-bit I/O ports, three 16-bit timer,'event counters, a mutO-source P89C51RA2 RB2 RC2 RD2 2 , four-priorftyJevel, nested Interrupt structure an enhanced UART and on-chip oscillator and timing circuitsThe added features of the P89C5lRA2'RB2lRCP89C51RA2 RB2 RC2 RD2 2
2'RD2xx make rt a powerful microcontroller for applications that require puse width modulation, high-speed I/O and up/down counting capabilities such INTEGRATED CIRCUITSP89C51 RA2xx/RB2xx/RC2xx/RD2xx80C51 8-bit Flash microcontroller family8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1 KB RAM P89C51RA2 RB2 RC2 RD2 2 P| capability•Boot ROM contains low level Flash programming routines for downloading via the UART•Can be programmed by die end-user app-cation (tAP)•Parallel programming with 87C51 compatible hardware interface to programmer•Supports 6-clocKf12-dock mode via parallel programmer (default clock mode a P89C51RA2 RB2 RC2 RD2 2 fter CnpErase IS 12.ck>ck)•e-dock/12-ciock mode Rash bit erasable and programmable via ISP•e-dock/12-ciock mode programmable “on-the-tly" by SFR bit•PP89C51RA2 RB2 RC2 RD2 2
eripherals (PCA timers UART) may use either 6-ciock or 12-dock mode while the CPU is in 6-cfock mode•Speed up to 20 MHZ with 6-dock cycles per machineINTEGRATED CIRCUITSP89C51 RA2xx/RB2xx/RC2xx/RD2xx80C51 8-bit Flash microcontroller family8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1 KB RAM P89C51RA2 RB2 RC2 RD2 2 r interrupt priority levels•Seven interrupt sources•Four 8-bit I/O ports•Full-duplex enhanced UARTINTEGRATED CIRCUITSP89C51 RA2xx/RB2xx/RC2xx/RD2xx80C51 8-bit Flash microcontroller family8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1 KB RAMGọi ngay
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