AT89C51ID2-RLTUM Atmel, AT89C51ID2-RLTUM Datasheet - Page 130

• Manufacturer Part Number: AT89C51ID2-RLTUM
• Description: IC 8051 MCU FLASH 64K 44VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51ID2-RLTUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 60MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 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: 2 KB
• 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
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• Package: 44VQFP
• Device Core: 8051
• Family Name: 89C
• Maximum Speed: 40 MHz
• Height: 1.45 mm
• Length: 10.1 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Width: 10.1 mm
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Table 95. Autobaud Performances (Continued)
Command Data Stream
Protocol
Figure 52. Command Flow
4289C–8051–11/05
Frequency (MHz)
Baudrate (kHz)
4800
9600
19200
38400
57600
115200
Sends first character of the
Frame
Sends frame (made of 2 ASCII
characters per byte)
Echo analysis
Host
1.8432
OK
OK
OK
-
-
-
2
All commands are sent using the same flow. Each frame sent by the host is echoed by
the bootloader.
OK
OK
OK
-
-
-
2.4576
OK
OK
OK
OK
OK
OK
3
":"
":"
OK
OK
OK
OK
-
-
3.6864
OK
OK
OK
OK
OK
OK
4
OK
OK
OK
OK
OK
Gets frame, and sends back ec
for each received byte
-
Else
If (not received ":")
Sends echo and start
reception
Bootloader
5
OK
OK
OK
OK
OK
-
AT89C51ID2
6
OK
OK
OK
OK
OK
-
7.3728
OK
OK
OK
OK
OK
-
130