Rainbow-electronics T89C51CC01 Manuel d'utilisateur télécharger pdf (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

RRST VValid

B FBUSY flag X No Longer Valid

Symbol Parameter Min Typ Max Unit

SVRL

Input PSEN# Valid to RST Edge 50 ns

RLSX

Input PSEN# Hold after RST Edge 50 ns

BHBL

FLASH Internal Busy (Programming) Time 10 ms

RST

SVRL

PSEN#1

RLSX

FBUSY bit

BHBL

1 2 ... 140 141 142 143 144 145 146 147 148 149

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Rainbow-electronics T89C51CC01 Manuel d'utilisateur Page 145