參數(shù)資料
型號(hào): AT45BR3214B-C1
廠商: ATMEL CORP
元件分類: 存儲(chǔ)器
英文描述: 32-MEGABIT DATAFLASH + 4-MEGABIT SRAM STACK MEMORY
中文描述: SPECIALTY MEMORY CIRCUIT, PBGA62
封裝: 12 X 8 MM, 1.20 MM HEIGHT, 0.80 MM PITCH, PLASTIC, CBGA-62
文件頁數(shù): 16/40頁
文件大?。?/td> 488K
代理商: AT45BR3214B-C1
16
AT45BR3214B
3356B–DFLASH–10/04
Input Test Waveforms and Measurement Levels
t
R
, t
F
< 3 ns (10% to 90%)
Output Test Load
AC Waveforms
Two different timing diagrams are shown below. Waveform 1 shows the SCK signal
being low when CS makes a high-to-low transition, and Waveform 2 shows the SCK sig-
nal being high when CS makes a high-to-low transition. Both waveforms show valid
timing diagrams. The setup and hold times for the SI signal are referenced to the low-to-
high transition on the SCK signal.
Waveform 1 shows timing that is also compatible with SPI Mode 0, and Waveform 2
shows timing that is compatible with SPI Mode 3.
Waveform 1 – Inactive Clock Polarity Low and SPI Mode 0
Waveform 2 – Inactive Clock Polarity High and SPI Mode 3
AC
DRIVING
LEVELS
AC
MEASUREMENT
LEVEL
0.45V
2.0
0.8
2.4V
DEVICE
UNDER
TEST
30 pF
CS
SCK
SI
SO
t
CSS
VALID IN
t
H
t
SU
t
WH
t
WL
t
CSH
t
CS
t
V
HIGH IMPEDANCE
VALID OUT
t
HO
t
DIS
HIGH IMPEDANCE
CS
SCK
SI
SO
t
CSS
VALID IN
t
H
t
SU
t
WL
t
WH
t
CSH
t
CS
t
V
HIGH Z
VALID OUT
t
HO
t
DIS
HIGH IMPEDANCE
相關(guān)PDF資料
PDF描述
AT45CS1282 128-megabit 2.7-volt Dual-interface Code Shadow DataFlash
AT45D011 1-Megabit 5.0-volt Only Serial DataFlash
AT45D011-JC 1-Megabit 5.0-volt Only Serial DataFlash
AT45D011-JI 1-Megabit 5.0-volt Only Serial DataFlash
AT45D011-SC 1-Megabit 5.0-volt Only Serial DataFlash
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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