AT89C51RC2-RLTIL Atmel, AT89C51RC2-RLTIL Datasheet - Page 12
AT89C51RC2-RLTIL
Manufacturer Part Number
AT89C51RC2-RLTIL
Description
8-bit Microcontrollers - MCU 80C31 w/4k
Manufacturer
Atmel
Datasheet
1.AT89C51RC2-RLTIL.pdf
(127 pages)
Specifications of AT89C51RC2-RLTIL
Product Category
8-bit Microcontrollers - MCU
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
60 MHz
Program Memory Size
32 KB
Data Ram Size
1280 B
On-chip Adc
No
Operating Supply Voltage
2.7 V to 5.5 V
Package / Case
VQFP-44
Mounting Style
SMD/SMT
Interface Type
SPI, UART
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
32
Number Of Timers
3
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C51RC2-RLTIL
Manufacturer:
ATMEL
Quantity:
5 000
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Table 12. Pin Description for 40 - 44 Pin Packages (Continued)
12
Mnemonic
PSEN
EA
AT89C51RB2/RC2
DIL
29
31
Pin Number
LCC
32
35
VQFP44 1.4
26
29
Type
O
I
Name and Function
Program Strobe Enable: The read strobe to external program memory. When
executing code from the external program memory, PSEN is activated twice each
machine cycle, except that two PSEN activations are skipped during each access to
external data memory. PSEN is not activated during fetches from internal program
memory.
External Access Enable: EA must be externally held low to enable the device to
fetch code from external program memory locations 0000H to FFFFH (RD). If
security level 1 is programmed, EA will be internally latched on Reset.
4180E–8051–10/06
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