參數(shù)資料
型號: DSP1620
英文描述: TVS 400W 6.0V BIDIRECT SMA
中文描述: 澄清,串行I /設(shè)備的DSP1620/27/28/29 O控制注冊說明
文件頁數(shù): 92/114頁
文件大?。?/td> 804K
代理商: DSP1620
Preliminary Data Sheet
February 1997
DSP1628 Digital Signal Processor
Lucent Technologies Inc.
90
10 Timing Characteristics for 2.7 V Operation
(continued)
10.4 JTAG I/O Specifications
Figure 14. JTAG Timing Diagram
Table 71. Timing Requirements for JTAG Input/Output
Abbreviated Reference
t12
t13
t14
t155
t156
t15
t16
t17
t18
Parameter
Min
50
22.5
22.5
0.6
0.6
7.5
2
7.5
2
Max
Unit
ns
ns
ns
V/ns
V/ns
ns
ns
ns
ns
TCK Period (high to high)
TCK High Time (high to low)
TCK Low Time (low to high)
TCK Rise Transition Time (low to high)
TCK Fall Transition Time (high to low)
TMS Setup Time (valid to high)
TMS Hold Time (high to invalid)
TDI Setup Time (valid to high)
TDI Hold Time (high to invalid)
Table 72. Timing Characteristics for JTAG Input/Output
Abbreviated Reference
t19
t20
Parameter
Min
0
Max
19
Unit
ns
ns
TDO Delay (low to valid)
TDO Hold (low to invalid)
t12
t14
t13
t15
t16
t17
t18
t19
t20
TCK
TMS
TDI
TDO
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
OH
V
OL
t155
t156
5-4017 (C)
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