AT89C51IC2-RLRUL Atmel, AT89C51IC2-RLRUL Datasheet - Page 50
AT89C51IC2-RLRUL
Manufacturer Part Number
AT89C51IC2-RLRUL
Description
IC 8051 MCU 32K FLASH 44-VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51IC2-SLRIM.pdf
(147 pages)
Specifications of AT89C51IC2-RLRUL
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
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1280 B
Interface Type
UART, SPI, TWI
Maximum Clock Frequency
60 MHz
Number Of Programmable I/os
34
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Other names
AT89C51IC2-RLRULTR
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Baud Rate Selection for
UART for mode 1 and 3
50
AT89C51IC2
TIMER1
Table 35. SADDR Register
SADDR - Slave Address Register (A9h)
Reset Value = 0000 0000b
Not bit addressable
The Baud Rate Generator for transmit and receive clocks can be selected separately via
the T2CON and BDRCON registers.
Figure 20. Baud Rate selection
Table 36. Baud Rate Selection Table UART
TIMER2
TIMER1
TIMER2
INT_BRG
INT_BRG
(T2CON)
TCLK
7
X
X
X
0
1
0
1
0
1
6
RCLK
TCLK
0
1
(T2CON)
0
1
RCLK
0
0
1
1
0
1
X
X
X
5
TIMER_BRG_RX
TIMER_BRG_TX
(BDRCON)
TBCK
0
0
0
0
1
1
0
0
1
4
(BDRCON)
RBCK
TBCK
RBCK
3
0
1
0
1
0
0
0
0
0
0
1
1
1
2
Clock Source
/ 16
/ 16
UART Tx
INT_BRG
INT_BRG
INT_BRG
Timer 1
Timer 2
Timer 1
Timer 2
Timer 1
Timer 2
Rx Clock
Tx Clock
1
4301D–8051–02/08
Clock Source
UART Rx
INT_BRG
INT_BRG
INT_BRG
Timer 1
Timer 1
Timer 2
Timer 2
Timer 1
Timer 2
0
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