P89V51RB2FN NXP Semiconductors, P89V51RB2FN Datasheet - Page 56

• Manufacturer Part Number: P89V51RB2FN
• Description: IC, MCU 8BIT 80C51 16K FLASH, DIP40
• Manufacturer: NXP Semiconductors

Specifications of P89V51RB2FN

• Controller Family/series: (8051) 8052
• Core Size: 8bit
• No. Of I/o's: 32
• Program Memory Size: 16KB
• Ram Memory Size: 1KB
• Cpu Speed: 33MHz
• Oscillator Type: External Only
• No. Of Timers: 4
• No. Of Pwm: RoHS Compliant

NXP Semiconductors
P89V51RB2_RC2_RD2_5
Product data sheet
Fig 27. Interrupt structure
CCFn
SPIF
CF
brownout
ECCFn
SPIE
INT0#
INT1#
ECF
TF1
TF0
EXF2
TF2
RI
TI
0
1
0
1
Table 44.
Bit addressable; Reset value: 00H
Bit
Symbol
IT0
IT1
individual
enables
IEN0 - Interrupt enable register 0 (address A8H) bit allocation
IE0
IE1
EA
7
IE and IEA
registers
Rev. 05 — 12 November 2009
EC
6
global
disable
ET2
5
IP/IPH/IPA/IPAH
registers
ES
4
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
ET1
3
EX1
2
© NXP B.V. 2009. All rights reserved.
ET0
highest
priority
interrupt
1
002aaa544
interrupt
polling
sequence
lowest
priority
interrupt
EX0
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0