AT45DB161D-SUSL383 Atmel, AT45DB161D-SUSL383 Datasheet - Page 33

• Manufacturer Part Number: AT45DB161D-SUSL383
• Description: Flash, pin, soic, flash, Memory, Semiconductors and Actives, serial, bit
• Manufacturer: Atmel

3500N–DFLASH–05/10
21.2
21.3
21.4
21.5
Waveform 2 – SPI Mode 3 Compatible (for frequencies up to 66MHz)
Waveform 3 – Atmel RapidS Mode 0 (F
Waveform 4 – Atmel RapidS Mode 3 (F
Utilizing the Atmel RapidS Function
To take advantage of the Atmel
must be used to transmit data back and forth across the serial bus. The Atmel DataFlash
clock its data out on the falling edge of the SCK signal and clock data in on the rising edge of SCK.
For full clock cycle operation to be achieved, when the DataFlash is clocking data out on the falling edge of SCK,
the host controller should wait until the next falling edge of SCK to latch the data in. Similarly, the host controller
should clock its data out on the rising edge of SCK in order to give the DataFlash a full clock cycle to latch the
incoming data in on the next rising edge of SCK.
SCK
SCK
SCK
SO
CS
CS
SO
CS
SO
SI
SI
SI
HIGH IMPEDANCE
HIGH Z
HIGH Z
t
CSS
t
CSS
t
SU
t
t
t
CSS
V
V
t
SU
t
SU
VALID IN
t
WL
t
WL
VALID IN
VALID IN
t
VALID OUT
WH
t
WH
t
VALID OUT
t
WH
V
t
HO
t
HO
t
®
H
t
H
RapidS
t
H
t
WL
™
VALID OUT
function's ability to operate at higher clock frequencies, a full clock cycle
t
HO
t
t
CSH
CSH
MAX
MAX
t
CSH
= 66MHz)
= 66MHz)
t
t
t
DIS
t
CS
HIGH IMPEDANCE
HIGH IMPEDANCE
DIS
t
CS
t
HIGH IMPEDANCE
DIS
CS
Atmel AT45DB161D
®
is designed to always
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