Datasheet 89v51rb2

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Datasheet 89v51rb2

IP89V51RD28-bit 80C51 5 V low power 64 kB Flash microcontrollerwith 1 kB RAMRev. 01 — 01 March 2004Product data1.General descriptionThe P89V51RD2 IS a

Datasheet 89v51rb2 an 80C51 microcontroller with 64 kB Flash and 1024 bytes of data RAM.A key feature of the P89V51RD2 is its X2 mode option The design engineer can choo

se to run the application with the conventional 80C51 clock rate (12 clocks per machine cycle) or select the X2 mode (6 clocks per machine cycle) to a Datasheet 89v51rb2

chieve twice the throughput at the same clock frequency. Another way to benefit from this feature is to keep the same performance by reducing the cloc

Datasheet 89v51rb2

k frequency by half, thus dramatically reducing the EMI.The Flash program memory supports both parallel programming and in serial In-System Programmin

IP89V51RD28-bit 80C51 5 V low power 64 kB Flash microcontrollerwith 1 kB RAMRev. 01 — 01 March 2004Product data1.General descriptionThe P89V51RD2 IS a

Datasheet 89v51rb2 grammed in the end product under software control. The capability to field.'update the application firmware makes a wide range of applications possibl

e.The P89V51RD2 is also In-Application Programmable (IAP), allowing the Flash program memory to be reconfigured even while the application is running. Datasheet 89v51rb2

2.Features■80C51 Central Processing Unit■5 V Operating voltage from 0 to 40 MHz■64 kB of on-chip Flash program memory with ISP (In-System Programming)

Datasheet 89v51rb2

and IAP (In-Application Programming)■Supports 12-clock (default) or 6-clock mode selection via software or ISP■SPI (Serial Peripheral Interface) and

IP89V51RD28-bit 80C51 5 V low power 64 kB Flash microcontrollerwith 1 kB RAMRev. 01 — 01 March 2004Product data1.General descriptionThe P89V51RD2 IS a

Datasheet 89v51rb2 each)■Three 16-bittimers/counters■Programmable Watchdog timer (WDT)■Eight interrupt sources with four priority levels■Second DPTR register■Low EMI mo

de (ALE inhibit)■TTL- and CMOS-compatible logic levelsi PHILIPSPhilips SemiconductorsP89V51RD28-bit microcontrollers with 80C51 core■Brown-out detecti Datasheet 89v51rb2

on■Low power modes♦Power-down mode with external interrupt wake-up♦Idle mode■PDIP40. PLCC44 and TQFP44 packages3.Ordering informationTable!: Ordering

Datasheet 89v51rb2

informationType numberPackageVersionNameDescriptionP89V51RD2FAPLCC44plastic leaded chip carrier; 44 leadsSOT187-2

IP89V51RD28-bit 80C51 5 V low power 64 kB Flash microcontrollerwith 1 kB RAMRev. 01 — 01 March 2004Product data1.General descriptionThe P89V51RD2 IS a