AT45DB321D-CCU Adesto Technologies, AT45DB321D-CCU Datasheet - Page 31

• Manufacturer Part Number: AT45DB321D-CCU
• Description: Flash 32M 2.7-3.6V, 66Mhz Serial Flash
• Manufacturer: Adesto Technologies

Specifications of AT45DB321D-CCU

• Rohs: yes
• Data Bus Width: 8 bit
• Memory Type: Data Flash
• Memory Size: 32 Mbit
• Architecture: Flexible, Uniform Erase
• Timing Type: Synchronous
• Interface Type: SPI
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V
• Maximum Operating Current: 15 mA
• Operating Temperature: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: BGA-24
• Factory Pack Quantity: 378

17.
18.
19.
Input Test Waveforms and Measurement Levels
Driving
t
Output Test Load
AC Waveforms
Six different timing waveforms are shown on
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 t
RapidS serial interface, but for frequencies up to 66MHz. Waveforms 1 and 2 are compatible 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 t
over the full frequency range (maximum frequency = 66MHz) of the RapidS serial case.
Table 19-1. Waveform 1 – SPI Mode 0 Compatible (for frequencies up to 66MHz)
Levels
R
, t
SCK
AC
SO
CS
F
SI
Device
under
< 2ns (10% to 90%)
test
0.45V
High impedance
2.4V
t
SU
t
CSS
30pF
Valid in
1.5V
t
WH
t
V
AC
Measurement
Level
t
H
page
t
WL
31. Waveform 1 shows the SCK signal being low when CS makes a high-to-
Valid out
t
HO
t
CSH
WL
WL
period. These timing waveforms are valid
). Timing waveforms 1 and 2 conform to
t
t
AT45DB321D [DATASHEET]
DIS
CS
High impedance
3597R–DFLASH–11/2012
31