Rainbow Electronics T89C51CC01 User Manual
Page 145
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145
T89C51CC01
Rev. D – 17-Dec-01
19.5.14 Flash Memory
Table 105. Timing Symbol Definitions
Table 106. Memory AC Timing
VDD= 5 V +/- 10% , TA= -40 to +85
°
C
Figure 62. FLASH Memory - ISP Waveforms
Figure 63. FLASH Memory - Internal Busy Waveforms
Signals
Conditions
S(Hardware
condition)
PSEN#,EA
L
Low
R
RST
V
Valid
B
FBUSY flag
X
No Longer Valid
Symbol
Parameter
Min
Typ
Max
Unit
T
SVRL
Input PSEN# Valid to RST Edge
50
ns
T
RLSX
Input PSEN# Hold after RST Edge
50
ns
T
BHBL
FLASH Internal Busy (Programming) Time
10
ms
RST
T
SVRL
PSEN#1
T
RLSX
FBUSY bit
T
BHBL
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