AT89C51IC2-RLRIL Atmel, AT89C51IC2-RLRIL Datasheet - Page 51
![IC MCU FLASH 8051 32K 3V 44-VQFP](/photos/6/92/69202/313-44-vqfp_sml.jpg)
AT89C51IC2-RLRIL
Manufacturer Part Number
AT89C51IC2-RLRIL
Description
IC MCU FLASH 8051 32K 3V 44-VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51IC2-SLRIM.pdf
(147 pages)
Specifications of AT89C51IC2-RLRIL
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89C51IC2RLRILTR
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Internal Baud Rate Generator
(BRG)
Figure 21. Internal Baud Rate
4301D–8051–02/08
Peripheral clock
BRR
When the internal Baud Rate Generator is used, the Baud Rates are determined by the
BRG overflow depending on the BRL reload value, the value of SPD bit (Speed Mode)
in BDRCON register and the value of the SMOD1 bit in PCON register.
•
The baud rate for UART is token by formula:
BaudRate
(
BRL
/6
)
=
256
SPD
0
1
=
auto reload counter
--------------------------------------------------------------------------------------------------------- -
2
–
×
---------------------------------------------------------------------------------------- -
2 2
2 6
×
×
2
×
〈
SMOD1
2
6
1 SPD
BRG
BRL
SMOD
(
1 SPD
–
–
×
×
overflow
〉
F
)
F
×
×
CLKPERIPH
CLKPERIPH
16
16
×
×
[
BaudRate
256
–
/2
(
BRL
)
]
0
1
INT_BRG
51
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