参数资料
型号: AT45DB321C-TU
厂商: Atmel
文件页数: 22/40页
文件大小: 0K
描述: IC FLASH 32MBIT 40MHZ 28TSOP
标准包装: 234
格式 - 存储器: 闪存
存储器类型: DataFLASH
存储容量: 32M(8192 页 x 528 字节)
速度: 40MHz
接口: SPI 3 线串行
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
封装/外壳: 28-TSSOP(0.465",11.8mm 宽)
供应商设备封装: 28-TSOP
包装: 托盘
Table 10-4.
AC Characteristics – Serial Interface
Symbol
f SCK (1)
(1)
f CAR
Parameter
SCK Frequency
SCK Frequency for Continuous Array Read
Min
Typ
Max
40
40
Units
MHz
MHz
t WH
t WL
t CS
t CSS
t CSH
t CSB
t SU
t H
t HO
t DIS
t V
t XFR
SCK High Time
SCK Low Time
Minimum CS High Time
CS Setup Time
CS Hold Time
CS High to RDY/BUSY Low
Data In Setup Time
Data In Hold Time
Output Hold Time
Output Disable Time
Output Valid
Page to Buffer Transfer/Compare Time
10
10
250
100
250
3
6
0
150
10
12
350
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
t EP (2)(3)
t P (2)(3)
t PE (2)(3)
t BE (2)(3)
Page Erase and Programming Time
Page Programming Time
Page Erase Time
Block Erase Time
16
8
8
20
50
15
35
100
ms
ms
ms
ms
t RST
t REC
t WPE
t WPD
RESET Pulse Width
RESET Recovery Time
WP Low to Protection Enabled
WP High to Protection Disabled
10
1
1
1
μs
μs
μs
μs
Note:
22
1. Maximum specified frequency for SPI compatibility is 33 MHz.
2. The device uses an adaptive algorithm during program and erase operations. Use the RDY/BUSY bit of the status register or
the RDY/BUSY pin to determine whether the program or erase operation has completed. Fixed timing should not be used.
3. Value are based on device characterization, not 100% tested in production.
AT45DB321C
3387M–DFLASH–2/08
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