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參數(shù)資料
型號: DSP56301AG80
廠商: Freescale Semiconductor
文件頁數(shù): 84/124頁
文件大小: 0K
描述: IC DSP 24BIT 80MHZ GP 208-LQFP
產(chǎn)品變化通告: DSP56301 Discontinuation 12/Nov/2009
標(biāo)準(zhǔn)包裝: 36
系列: DSP563xx
類型: 定點
接口: 主機接口,SSI,SCI
時鐘速率: 80MHz
非易失內(nèi)存: ROM(9 kB)
芯片上RAM: 24kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 3.30V
工作溫度: -40°C ~ 100°C
安裝類型: 表面貼裝
封裝/外殼: 208-LQFP
供應(yīng)商設(shè)備封裝: 208-LQFP
包裝: 托盤
DSP56301 Technical Data, Rev. 10
2-36
Freescale Semiconductor
Specifications
330
HIRQ High Impedance from Data Strobe Assertion
(HIRH = 1, HIRD = 0)1,6
80 MHz: 2.5
× TC + 24.7
100 MHz: 2.5
× TC + 21.5
55.9
46.5
ns
331
HIRQ Active from Data Strobe Deassertion
(HIRH = 1, HIRD = 0)1
2.5
× TC
31.3
25.0
ns
332
HIRQ Deasserted Hold from Data Strobe Deassertion1
2.5
× TC
31.3
25.0
ns
346
HRST Assertion to Host Port Pins High Impedance2
22.2
19.6
ns
347
HBS Assertion to CLKOUT Rising Edge
4.3
3.4
ns
348
Data Strobe Deassertion to CLKOUT Rising Edge1
7.4
5.9
ns
Notes:
1.
The Data Strobe is HRD or HWR in the Dual Data Strobe mode and HDS in the Single Data Strobe mode.
2.
HTA, HDRQ, and HRST may be programmed as active-high or active-low. In the example timing diagrams, HDRQ and HRST
are shown as active-high and HTA is shown as active low.
3.
The Read Data Strobe is HRD in the Dual Data Strobe mode and HDS in the Single Data Strobe mode.
4.
The Write Data Strobe is HWR in the Dual Data Strobe mode and HDS in the Single Data Strobe mode.
5.
HTA requires an external pull-down resistor if programmed as active high (HTAP = 0); or an external pull-up resistor if
programmed as active low (HTAP = 1). The resistor value should be consistent with the DC specifications.
6.
HIRQ requires an external pull-up resistor if programmed as open drain (HIRD = 0). The resistor value should be consistent
with the DC specifications.
7.
“LT” is the value of the latency timer register (CLAT) as programmed by the user during self configuration.
8.
Values are valid for VCC = 3.3 ± 0.3V
Figure 2-27.
Universal Bus Mode I/O Access Timing
Table 2-19.
Universal Bus Mode, Synchronous Port A Type Host Timing (Continued)
No.
Characteristic
Expression
80 MHz
100 MHz
Unit
Min
Max
Min
Max
HA[10–0]
HDS
HRD
HWR
HIRQ
HBS
(HIRD = 1,
(HIRD = 0,
301
329
302
HIRH = 1)
305
307
308
310
309
332
330
331
328
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