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IA188EBPLC84IR2 Datasheet, PDF (55/85 Pages) InnovASIC, Inc – 8-Bit/16-Bit Microcontrollers | |||
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IA186EB/IA188EB
8-Bit/16-Bit Microcontrollers
Data Sheet
July 10, 2011
Table 17. Relative Timing Characteristics
Symbol
Parameter
Min Max Units
tLHLL ale Rising to ale Falling
t â 15 â ns
tAVLL Address Valid to ale Falling
½t â10 â ns
tPLLL Chip Selects Valid to ale Falling
½t â10 â ns
tLLAX Address Hold from ale Falling
½t â10 â ns
tLLWL ale Falling to wr_n Falling
½t â15 â ns
tLLRL ale Falling to rd_n Falling
½t â15 â ns
tWHLH wr_n Rising to ale Rising
½t â10 â ns
tAFRL Address Float to rd_n Falling
0
â ns
tRLRH rd_n Falling to rd_n Rising
(2t) â 5 â ns
tWLWH wr_n Falling to wr_n Rising
(2t) â 5 â ns
tRHAV rd_n Rising to Address Active
t â 15 â ns
tWHDX Output Data Hold after wr_n Rising t â 15 â ns
tWHPH wr_n Rising to Chip Select Rising ½t â10 â ns
tRHPH rd_n Rising to Chip Select Rising ½t â10 â ns
tPHPL cs_n inactive to cs_n active
½t â10 â ns
tOVRH once_n Active to resin_n Rising
t
â ns
tRHOX once_n Hold to resin_n Rising
t
â Ns
5.1 AC Test Conditions
The AC specifications are tested with the 50-pF load shown in Figure 15. Specifications are
measured at the VCC/2 crossing point unless otherwise specified.
Figure 15. AC Test Load
IA211080314-13
UNCONTROLLED WHEN PRINTED OR COPIED
Page 55 of 85
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