AT89C51RC-24JU Atmel, AT89C51RC-24JU Datasheet - Page 9

IC 8051 MCU FLASH 32K 44PLCC

AT89C51RC-24JU

Manufacturer Part Number
AT89C51RC-24JU
Description
IC 8051 MCU FLASH 32K 44PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet

Specifications of AT89C51RC-24JU

Core Processor
8051
Core Size
8-Bit
Speed
24MHz
Connectivity
SPI, UART/USART
Peripherals
WDT
Number Of I /o
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Package
44PLCC
Device Core
8051
Family Name
89C
Maximum Speed
24 MHz
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Interface Type
UART
Number Of Timers
3
Processor Series
AT89x
Core
8051
Data Ram Size
512 B
Maximum Clock Frequency
33 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
For Use With
AT89STK-11 - KIT STARTER FOR AT89C51RX2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
 Details

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Table 5-3.
Table 5-4.
1920D–MICRO–6/08
AUXR
DISALE
EXTRAM
DISRTO
WDIDLE
AUXR1
DPS
Reserved for future expansion
Disable/Enable ALE
DISALE
0
1
Internal/External RAM access using MOVX @ Ri/@DPTR
EXTRAM
0
1
Disable/Enable Reset out
DISRTO
0
1
Disable/Enable WDT in IDLE mode
WDIDLE
0
1
Reserved for future expansion
Data Pointer Register Select
DPS
0
1
AUXR1: Auxiliary Register 1
AUXR: Auxiliary Register
Address = 8EH
Not Bit Addressable
Address = A2H
Not Bit Addressable
Bit
Bit
Operating Mode
ALE is emitted at a constant rate of 1/6 the oscillator frequency
ALE is active only during a MOVX or MOVC instruction
Operating Mode
Internal ERAM (00H-FFH) access using MOVX @ Ri/@DPTR
External data memory access
Operating Mode
Reset pin is driven High after WDT times out
Reset pin is input only
Operating Mode
WDT continues to count in IDLE mode
WDT halts counting in IDLE mode
Selects DPTR Registers DP0L, DP0H
Selects DPTR Registers DP1L, DP1H
7
7
6
6
5
5
WDIDLE
4
4
DISRTO
3
3
2
2
Reset Value = XXXXXXX0B
Reset Value = XXX00X00B
EXTRAM
1
1
AT89C51RC
DISALE
DPS
0
0
9

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