参数资料
型号: ADSP-BF547YBCZ-4A
厂商: Analog Devices Inc
文件页数: 25/100页
文件大小: 0K
描述: IC DSP BLACKFIN 400MHZ 400CSPBGA
标准包装: 1
系列: Blackfin®
类型: 定点
接口: SPI,SSP,TWI,UART,USB
时钟速率: 400MHz
非易失内存: 外部
芯片上RAM: 260kB
电压 - 输入/输出: 2.50V,3.30V
电压 - 核心: 1.25V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 400-LFBGA,CSPBGA
供应商设备封装: 400-CSPBGA(17x17)
包装: 托盘
Rev. D
|
Page 30 of 100
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May 2011
ADSP-BF542/ADSP-BF544/ADSP-BF547/ADSP-BF548/ADSP-BF549
DDR Memory Interface
DA0–12
O
DDR Address Bus
D
DBA0–1
O
DDR Bank Active Strobe
D
DQ0–15
I/O DDR Data Bus
D
DQS0–1
I/O DDR Data Strobe
D
DQM0–1
O
DDR Data Mask for Reads and Writes
D
DCLK0–1
O
DDR Output Clock
D
DCLK0–1
O
DDR Complementary Output Clock
D
DCS0–1
ODDR Chip Selects
D
DCLKE
9
O
DDR Clock Enable (Requires a pull-down if hibernate with DDR self-
refresh is used.)
D
DRAS
O
DDR Row Address Strobe
D
DCAS
O
DDR Column Address Strobe
D
DWE
ODDR Write Enable
D
DDR_VREF
I
DDR Voltage Reference
DDR_VSSR
I
DDR Voltage Reference Shield (Must be connected to GND.)
Asynchronous Memory Interface
A1-3
O
Address Bus for Async and ATAPI Addresses
A
D0-15/ND_D0-15/ATAPI_D0-15
I/O Data Bus for Async, NAND and ATAPI Accesses
A
AMS0–3
O
Bank Selects (Pull high with a resistor when used as chip select. Require
pull-ups if hibernate is used.)
A
ABE0 /ND_CLE
O
Byte Enables : Data Masks for Asynchronous Access/ NAND Command
Latch Enable
A
ABE1/ ND_ALE
O
Byte Enables: Data Masks for Asynchronous Access /NAND Address Latch
Enable
A
AOE /NR_ADV
O
Output Enable/NOR Address Data Valid
A
ARE
ORead Enable/ NOR Output Enable
A
AWE
OWrite Enable
A
ATAPI Controller Pins
ATAPI_PDIAG
I
Determines if an 80-pin cable is connected to the host. (Pull high or low
when unused.)
High Speed USB OTG Pins
USB_DP
I/O USB D+ Pin (Pull low when unused.)
USB_DM
I/O USB D- Pin (Pull low when unused.)
USB_XI
C
Clock XTAL Input (Pull high or low when unused.)
USB_XO
C
Clock XTAL Output (Leave unconnected when unused.)
USB_ID10
I
USB OTG ID Pin (Pull high when unused.)
Table 11. Pin Descriptions
(Continued)
Pin Name
I/O
1 Function (First/Second/Third/Fourth)
Driver
Type
2
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