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參數(shù)資料
| 型號： | ADSP-2189NBSTZ-320 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 19/48頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DSP CONTROLLER 16BIT 100-LQFP |
| 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(shí)鐘速率： | 80MHz |
| 非易失內(nèi)存： | 外部 |
| 芯片上RAM： | 192kB |
| 電壓 - 輸入/輸出： | 1.8V，2.5V，3.3V |
| 電壓 - 核心： | 1.90V |
| 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 |
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Rev. A
|
Page 26 of 48
|
August 2006
ADSP-218xN
TIMING SPECIFICATIONS
This section contains timing information for the DSP’s
external signals.
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,
parameters cannot be added up meaningfully to derive
longer times.
Timing Notes
Switching characteristics specify how the processor changes its
signals. Designers have no control over this timing—circuitry
external to the processor must be designed for compatibility
with these signal characteristics. Switching characteristics tell
what the processor will do in a given circumstance. Switching
characteristics can also be used 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 cir-
cuitry external to the processor, such as the data input for a read
operation. Timing requirements guarantee that the processor
operates correctly with other devices.
Frequency Dependency For Timing Specifications
tCK is defined as 0.5 tCKI. The ADSP-218xN uses an input clock
with a frequency equal to half the instruction rate. For example,
a 40 MHz input clock (which is equivalent to 25 ns) yields a
12.5 ns processor cycle (equivalent to 80 MHz). tCK values
within the range of 0.5 tCKI period should be substituted for all
relevant timing parameters to obtain the specification value.
Example: tCKH = 0.5 tCK – 2 ns = 0.5 (12.5 ns) – 2 ns = 4.25 ns
Output Drive Currents
Figure 21 shows typical I-V characteristics for the output driv-
ers on the ADSP-218xN series.The curves represent the current
drive capability of the output drivers as a function of
output voltage.
Figure 23 shows the typical power-down supply current.
Capacitive Loading
tics of the ADSP-218xN.
Figure 21. Typical Output Driver Characteristics
for VDDEXT at 3.6 V, 3.3 V, 2.5 V, and 1.8 V
V OL
SOURCE VOLTAGE – V
00.5
1.0
S
O
U
R
C
E
C
U
R
E
N
T
–
m
A
60
0
–20
–40
–60
40
20
VDDEXT =3.6V@ –40 C
VDDEXT =3.3V@ +25 C
VDDEXT = 1.8/2.5V @ +85 C
VDDEXT =2.5V @ +85 C
V DDEXT = 3.6 V @ –40 C
80
–80
1.5
2.0
2.5
3.0
3.5
4.0
VDDEXT = 1.8/2.5V @ +85 C
V
OH
VDDEXT =3.3V @ +25 C
VDDEXT =1.8V @ +85 C
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| ADSP-2189NBSTZ-3202 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2189NKCA-320 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 80MHz 80MIPS 144-Pin CSP-BGA 制造商:Rochester Electronics LLC 功能描述:32K PM/48K DM RAM,16-BIT,80 MIPS, 1.8V - Bulk |
| ADSP-2189NKCAZ-320 | 功能描述:IC DSP 16BIT 80MHZ 144CSPBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:ADSP-21xx 標(biāo)準(zhǔn)包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI，以太網(wǎng)，RS-232 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA（20x20） 包裝:托盤 |
| ADSP-2189NKCAZ-3202 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2189NKST-320 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 80MHz 80MIPS 100-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:32K PM/48K DM RAM,16-BIT, 80 MIPS, 1.8V - Bulk 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 16-BIT |
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