p89v51rb2 NXP Semiconductors, p89v51rb2 Datasheet - Page 3
p89v51rb2
Manufacturer Part Number
p89v51rb2
Description
8-bit 80c51 5 V Low Power 16/32/64 Kb Flash Microcontroller With 1 Kb Ram
Manufacturer
NXP Semiconductors
Datasheet
1.P89V51RB2.pdf
(80 pages)
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NXP Semiconductors
4. Block diagram
P89V51RB2_RC2_RD2_4
Product data sheet
Fig 1. Block diagram
RESONATOR
CRYSTAL
OR
P3[7:0]
P2[7:0]
P1[7:0]
P0[7:0]
XTAL1
XTAL2
P89V51RB2/RC2/RD2
CODE FLASH
OSCILLATOR
16/32/64 kB
DATA RAM
PORT 3
PORT 2
PORT 1
PORT 0
1 kB
Rev. 04 — 1 May 2007
internal
HIGH PERFORMANCE
bus
80C51 CPU
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
WATCHDOG TIMER
PROGRAMMABLE
COUNTER ARRAY
TIMER 0
TIMER 1
TIMER 2
UART
PCA
SPI
002aac772
© NXP B.V. 2007. All rights reserved.
TXD
RXD
T0
T1
T2
T2EX
SPICLK
MOSI
MISO
SS
CEX[4:0]
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