参数资料
型号: AT45DB041B-TC-2.5
厂商: ATMEL CORP
元件分类: DRAM
英文描述: 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash
中文描述: 4M X 1 FLASH 2.7V PROM, PDSO28
封装: 8 X 13.40 MM, PLASTIC, MO-183, TSOP1-28
文件页数: 14/33页
文件大小: 233K
代理商: AT45DB041B-TC-2.5
14
AT45DB041B
1938F–DFLSH–10/02
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
tH
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
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相关代理商/技术参数
参数描述
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AT45DB041B-TI-2.5 功能描述:IC FLASH 4MBIT 20MHZ 28TSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M(1M x 8,512K x 16) 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA(7x7) 包装:托盘
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AT45DB041-CI 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-Megabit 2.7-volt Only Serial DataFlash