T89C51RD2-SLSIM Atmel, T89C51RD2-SLSIM Datasheet - Page 93

• Manufacturer Part Number: T89C51RD2-SLSIM
• Description: IC MICRO CTRL 64K FLASH 44PLCC
• Manufacturer: Atmel
• Series: 89Cr

Specifications of T89C51RD2-SLSIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

Float Waveforms
4243G–8051–05/03
AC inputs during testing are driven at V
Timing measurement are made at V
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
occurs. I
V
V
OH
OL
+ 0.1 V
- 0.1 V
OL
/I
OH
≥ ± 20mA.
FLOAT
V
LOAD
V
V
IH
LOAD
LOAD
min for a logic “1” and V
CC
+ 0.1 V
- 0.1 V
- 0.5 for a logic “1” and 0.45V for a logic “0”.
IL
max for a logic “0”.
T89C51RD2
OH
/V
OL
level
93