AT45DB081D-MU-2.5 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT45DB081D-MU-2.5' PDF : 53 Pages View PDF
Atmel AT45DB081D
19. Input Test Waveforms and Measurement Levels
AC
DRIVING
LEVELS
2.4V
0.45V
tR, tF < 2 ns (10% to 90%)
1.5V
AC
MEASUREMENT
LEVEL
20. Output Test Load
DEVICE
UNDER
TEST
30pF
21. AC Waveforms
Six different timing waveforms are shown on page 36. Waveform 1 shows the SCK signal being
low when CS makes a high-to-low transition, and waveform 2 shows the SCK signal being high
when CS makes a high-to-low transition. In both cases, output SO becomes valid while the
SCK signal is still low (SCK low time is specified as tWL). Timing waveforms 1 and 2 conform to
Atmel® RapidS™ serial interface but for frequencies up to 66MHz. Waveforms 1 and 2 are com-
patible with SPI Mode 0 and SPI Mode 3, respectively.
Waveform 3 and waveform 4 illustrate general timing diagram for RapidS serial interface. These
are similar to waveform 1 and waveform 2, except that output SO is not restricted to become
valid during the tWL period. These timing waveforms are valid over the full frequency range (max-
imum frequency = 66MHz) of the Atmel RapidS serial case.
35
3596M–DFLASH–5/10
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