at89c5131 ATMEL Corporation, at89c5131 Datasheet - Page 167

• Manufacturer Part Number: at89c5131
• Description: 8-bit Flash Microcontroller With Full Speed Usb Device At89c5131
• Manufacturer: ATMEL Corporation

Flash Memory
4136C–USB–04/05
Table 122. Timing Symbol Definitions
Table 123. Memory AC Timing
VDD = 3.3V ± 10%, T
Figure 74. Flash Memory - ISP Waveforms
Figure 75. Flash Memory - Internal Busy Waveforms
S (Hardware
Condition)
R
B
T
T
T
SVRL
RLSX
BHBL
Symbol
FBUSY bit
PSEN1
RST
Signals
Parameter
Input PSEN Valid to RST Edge
Input PSEN Hold after RST Edge
Flash Internal Busy (Programming) Time
PSEN, EA
RST
FBUSY Flag
A
= -40 to +85°C
T
SVRL
T
BHBL
T
RLSX
L
V
X
Min
50
50
Typ
10
Conditions
AT89C5131
Low
Valid
No Longer Valid
Max
Unit
ms
ns
ns
165