AT80C51RD2-RLRUM Atmel, AT80C51RD2-RLRUM Datasheet - Page 41

• Manufacturer Part Number: AT80C51RD2-RLRUM
• Description: IC MCU 80C51 HI PERFORM 44VQFP
• Manufacturer: Atmel
• Series: 80Cr

Specifications of AT80C51RD2-RLRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: AT80x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1280 B
• Interface Type: UART, SPI
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

4113D–8051–01/09
Table 11-9.
SBUF - Serial Buffer Register for UART (99h)
Reset Value = XXXX XXXXb
Table 11-10. BRL Register
BRL - Baud Rate Reload Register for the internal baud rate generator, UART (9Ah)
Reset Value = 0000 0000b
7
7
SBUF Register
6
6
5
5
4
4
3
3
2
2
AT80C51RD2
1
1
0
0
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