參數(shù)資料
型號: ADSP-2184BSTZ-160
廠商: Analog Devices Inc
文件頁數(shù): 6/31頁
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 16BIT 100LQFP
標(biāo)準(zhǔn)包裝: 1
系列: ADSP-21xx
類型: 定點(diǎn)
接口: 主機(jī)接口,串行端口
時鐘速率: 40MHz
非易失內(nèi)存: 外部
芯片上RAM: 20kB
電壓 - 輸入/輸出: 5.00V
電壓 - 核心: 5.00V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 托盤
產(chǎn)品目錄頁面: 738 (CN2011-ZH PDF)
ADSP-2184
–14–
REV. 0
ESD SENSITIVITY
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the ADSP-2184 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Input Voltage . . . . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V
Output Voltage Swing . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V
Operating Temperature Range (Ambient) . .
–40
°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature (5 sec) LQFP . . . . . . . . . . . . . . . . +280
°C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. These are stress ratings only; functional operation of
the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
TIMING PARAMETERS
GENERAL NOTES
Use the exact timing information given. Do not attempt to
derive parameters from the addition or subtraction of others.
While addition or subtraction would yield meaningful results for
an individual device, the values given in this data sheet reflect
statistical variations and worst cases. Consequently, you cannot
meaningfully add up parameters to derive longer times.
TIMING NOTES
Switching characteristics specify how the processor changes its
signals. You have no control over this timing—circuitry external
to the processor must be designed for compatibility with these
signal characteristics. Switching characteristics tell you what the
processor will do in a given circumstance. You can also use
switching characteristics to ensure that any timing requirement
of a device connected to the processor (such as memory) is
satisfied.
Timing requirements apply to signals that are controlled by
circuitry external to the processor, such as the data input for a
read operation. Timing requirements guarantee that the proces-
sor operates correctly with other devices.
MEMORY TIMING SPECIFICATIONS
The table below shows common memory device specifications
and the corresponding ADSP-2184 timing parameters, for your
convenience.
Memory
ADSP-2184 Timing
Device
Timing
Parameter
Specification
Parameter
Definition
Address Setup to
tASW
A0–A13,
xMS Setup
Write Start
before
WR Low
Address Setup to
tAW
A0–A13,
xMS Setup
Write End
before
WR Deasserted
Address Hold Time
tWRA
A0–A13,
xMS Hold before
WR Low
Data Setup Time
tDW
Data Setup before
WR
High
Data Hold Time
tDH
Data Hold after
WR High
OE to Data Valid
tRDD
RD Low to Data Valid
Address Access Time tAA
A0–A13,
xMS to Data
Valid
xMS = PMS, DMS, BMS, CMS, IOMS.
FREQUENCY DEPENDENCY FOR TIMING
SPECIFICATIONS
tCK is defined as 0.5 tCKI. The ADSP-2184 uses an input clock
with a frequency equal to half the instruction rate: a 20 MHz
input clock (which is equivalent to 50 ns) yields a 25 ns proces-
sor cycle (equivalent to 40 MHz). tCK values within the range of
0.5 tCKI period should be substituted for all relevant timing para-
meters to obtain the specification value.
Example: tCKH = 0.5 tCK – 7 ns = 0.5 (25 ns) – 7 ns = 5.5 ns
WARNING!
ESD SENSITIVE DEVICE
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