t89c51rd2-slscl ATMEL Corporation, t89c51rd2-slscl Datasheet - Page 93

• Manufacturer Part Number: t89c51rd2-slscl
• Description: 0 To 40 Mhz Flash Programmable 8-bit Microcontroller
• Manufacturer: ATMEL Corporation

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