Rainbow Electronics T89C51CC01 - Manual (Page 145)

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B FBUSY flag X No Longer Valid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