at89c51rd2-smsum ATMEL Corporation, at89c51rd2-smsum Datasheet - Page 124

• Manufacturer Part Number: at89c51rd2-smsum
• Description: 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

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
4235J–8051–01/08
OL
/I
OH