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 VOH/VOL level
occurs. IOL/IOH
≥
20mA.
Clock Waveforms
Valid in normal clock mode. In X2 Mode XTAL2 must be changed to XTAL2/2.
Flash/EEPROM Memory
Table 78. Memory AC Timing
Vcc = 3.0V to 5.5V, TA = -40°C to +85°C
Symbol
Parameter
Min
Typ
Max
Unit
Flash/EEPROM Internal Busy
(Programming) Time
TBHBL
13
17
ms
Number of Flash/EEPROM Erase/Write
Cycles
NFCY
TFDR
100 000
10
cycles
years
Flash/EEPROM Data Retention Time
Figure 49. Flash Memory - Internal Busy Waveforms
FBUSY bit
TBHBL
A/D Converter
Table 79. AC Parameters for A/D Conversion
Symbol
Parameter
Min
Typ
Max
Unit
µs
TSETUP
4
ADC Clock Frequency
700
KHz
102
AT89C5115
4128F–8051–05/06
ATMEL [ ATMEL ]
