p89cv51rb2 NXP Semiconductors, p89cv51rb2 Datasheet - Page 3

• Manufacturer Part Number: p89cv51rb2
• Description: P89cv51rb2/rc2/rd2 8-bit 80c51 5 V Low Power 64 Kb Flash Microcontroller With 1 Kb Ram, Spi, 6-clock Cpu With 6/12-clock Peripherals
• Manufacturer: NXP Semiconductors

NXP Semiconductors
4. Block diagram
P89CV51RB2_RC2_RD2_1
Product data sheet
Fig 1. Block diagram
RESONATOR
CRYSTAL
OR
P3[7:0]
P2[7:0]
P1[7:0]
P0[7:0]
XTAL1
XTAL2
P89CV51RB2/RC2/RD2
16 kB/32 kB/64 kB
CODE FLASH
OSCILLATOR
DATA RAM
PORT 3
PORT 2
PORT 1
PORT 0
1 kB
Rev. 01 — 5 October 2007
internal
HIGH PERFORMANCE
bus
80C51 CPU
P89CV51RB2/RC2/RD2
WATCHDOG TIMER
COUNTER ARRAY
PROGRAMMABLE
TIMER 0
TIMER 1
TIMER 2
UART
PCA
SPI
80C51 with 1 kB RAM, SPI
002aac960
© NXP B.V. 2007. All rights reserved.
TXD
RXD
SPICLK
MOSI
MISO
SS
T0
T1
T2
T2EX
CEX[4:0]
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