Datasheet

231
4341H–MP3–10/07
AT8xC51SND2C/MP3B
24.4.3.3 Waveforms
Figure 24-25. Audio Interface Waveforms
24.4.4 Flash Memory
24.4.4.1 Definition of symbols
Table 24-24. Flash Memory Timing Symbol Definitions
24.4.4.2 Timings
Table 24-25. Flash Memory AC Timing
V
DD
= 2.7 to 3.3 V, T
A
= -40 to +85°C
DCLK
T
CHCH
T
CLCX
T
CHCX
T
CLCH
T
CHCL
DSEL
DDAT
Right Left
T
CLSV
T
CLOV
Signals Conditions
S ISP L Low
R RST V Valid
B FBUSY flag X No Longer Valid
Symbol Parameter Min Typ Max Unit
T
SVRL
Input ISP Valid to RST Edge 50 ns
T
RLSX
Input ISP Hold after RST Edge 50 ns
T
BHBL
FLASH Internal Busy (Programming) Time 10 ms
N
FCY
Number of Flash Write Cycles 100K Cycle
T
FDR
Flash Data Retention Time 10 Years