AT89C51ED2-RLRIM Atmel, AT89C51ED2-RLRIM Datasheet - Page 124

• Manufacturer Part Number: AT89C51ED2-RLRIM
• Description: IC MCU FLASH 8051 64K 5V 44-VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51ED2-RLRIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 60MHz
• Connectivity: 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: AT89C51ED2RLRIMTR

25.3.11
25.3.12
124
AT89C51RD2/ED2
Float Waveforms
Clock Waveforms
For timing purposes as port pin is no longer floating when a 100 mV change from load voltage
occurs and begins to float when a 100 mV change from the loaded V
≥ ± 20 mA.
Valid in normal clock mode. In X2 mode XTAL2 must be changed to XTAL2/2.
V
V
OH
OL
+ 0.1V
- 0.1V
FLOAT
V
LOAD
V
V
LOAD
LOAD
+ 0.1V
- 0.1V
OH
/V
OL
level occurs. I
4235K–8051–05/08
OL
/I
OH