at89c51ac3-s3sim ATMEL Corporation, at89c51ac3-s3sim Datasheet - Page 133

• Manufacturer Part Number: at89c51ac3-s3sim
• Description: At89c51ac3 Enhanced 8-bit Microcontroller With 64kb Flash Memory
• Manufacturer: ATMEL Corporation

Flash/EEPROM Memory
4383D–8051–02/08
Table 83. Timing Symbol Definitions
Table 84. Memory AC Timing
VDD = 3V to 5.5V, TA = -40 to +85°C
Figure 68. Flash Memory – ISP Waveforms
Figure 69. Flash Memory – Internal Busy Waveforms
S (Hardware
condition)
R
B
Symbol
T
T
T
SVRL
RLSX
BHBL
PSEN#1
FBUSY bit
RST
Signals
Parameter
Input PSEN# Valid to RST Edge
Input PSEN# Hold after RST Edge
Flash/EEPROM Internal Busy
(Programming) Time
PSEN#,EA
RST
FBUSY flag
T
SVRL
T
BHBL
T
RLSX
L
V
X
Min
50
50
Typ
10
Conditions
Low
Valid
No Longer Valid
Max
Unit
ms
ns
ns
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