P89V51RD2FA NXP Semiconductors, P89V51RD2FA Datasheet - Page 58

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P89V51RD2FA

Manufacturer Part Number
P89V51RD2FA
Description
MCU 8-Bit 89V 80C51 CISC 64KB Flash 5V 44-Pin PLCC Tube
Manufacturer
NXP Semiconductors
Datasheet

Specifications of P89V51RD2FA

Program Memory Size
64 KB
Package
44PLCC
Device Core
80C51
Family Name
89V
Maximum Speed
40 MHz
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Interface Type
SPI/UART
Number Of Timers
3
Ram Size
1 KB
Program Memory Type
Flash
Operating Temperature
-40 to 85 °C
Controller Family/series
80C51
No. Of I/o's
32
Ram Memory Size
1KB
Cpu Speed
40MHz
No. Of Timers
4
No. Of Pwm Channels
5
Digital Ic Case Style
LCC
Core Size
8 Bit
Embedded Interface Type
UART
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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NXP Semiconductors
P89V51RB2_RC2_RD2_5
Product data sheet
6.12.1 Idle mode
6.12 Power-saving modes
Table 51.
Table 52.
Bit addressable; Reset value: 00H
Table 53.
Table 54.
Not bit addressable; Reset value: 00H
Table 55.
The device provides two power saving modes of operation for applications where power
consumption is critical. The two modes are Idle and Power-down, see
Idle mode is entered setting the IDL bit in the PCON register. In Idle mode, the program
counter (PC) is stopped. The system clock continues to run and all interrupts and
peripherals remain active. The on-chip RAM and the special function registers hold their
data during this mode.
Bit
7
6
5
4
3
2
1
0
Bit
7 to 5
4
3 to 0
Bit
7 to 5
4
3 to 0
Bit
Symbol
Bit
Symbol
IP0H - Interrupt priority 0 high register (address B7H) bit description
IP1 - Interrupt priority 1 register (address F8H) bit allocation
IP1 - Interrupt priority 1 register (address F8H) bit description
IP1H - Interrupt priority 1 high register (address F7H) bit allocation
IP1H - Interrupt priority 1 high register (address F7H) bit description
Symbol
-
PPCH
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
Symbol
-
PBO
-
Symbol
-
PBOH
-
7
7
-
-
Rev. 05 — 12 November 2009
6
6
-
-
Description
Reserved for future use. Should be set to ‘0’ by user programs.
PCA interrupt priority HIGH bit.
Timer 2 interrupt priority HIGH bit.
Serial Port interrupt priority HIGH bit.
Timer 1 interrupt priority HIGH bit.
External interrupt 1 priority HIGH bit.
Timer 0 interrupt priority HIGH bit.
External interrupt 0 priority HIGH bit.
Description
Reserved for future use. Should be set to ‘0’ by user programs.
Brownout interrupt priority bit.
Reserved for future use. Should be set to ‘0’ by user programs.
Description
Reserved for future use. Should be set to ‘0’ by user programs.
Brownout interrupt priority bit.
Reserved for future use. Should be set to ‘0’ by user programs.
5
5
-
-
PBOH
PBO
4
4
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
3
3
-
-
2
2
-
-
Table
© NXP B.V. 2009. All rights reserved.
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