W83L951DG Datasheet, PDF (101/112 Pages) Winbond – Mobile Keyboard and Embedded Controller

W83L951DG/W83L951FG
Table 6-31.Power-up Timing Parameters Table
PARAMETER
Power-up to Read Operation
Power-up to Write Operation
SYMBOL
TPU. READ
TPU. WRITE
TYPICAL
100
5
UNIT
µS
mS
6.17.9 Timing Waveforms
The Timing Waveforms don’t contain ALE(GP34 and TS(GP33). If using External Mode to access, TS
pin must keep low. And use ALE(GP34) to do Low Address Byte(GP0) latch. ALE is high active and
pulse width is at least 50ns. Low Address Byte(GP0) must be stable before ALE changes state from
high to low.
Figure 6-7.Read Cycle Timing Diagram
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Publication Release Date: August 2006
Revision 1.0