參數(shù)資料
型號(hào)： NSAM265SFA
廠商： National Semiconductor Corporation
英文描述： CompactSPEECH Digital Speech Processors
中文描述： CompactSPEECH數(shù)字語音處理器
文件頁數(shù)： 39/58頁
文件大?。?/td> 712K
代理商： NSAM265SFA
Appendix A Device Specifications
(Continued)
A.4.2 SYNCHRONOUS TIMING TABLES
In this section, R.E. means RIsing Edge and F.E. means Falling Edge.
TABLE A-2. Timing for Output Signals
Symbol
Figure
Description
Reference Conditions
Min (ns)
Max (ns)
t
Ah
A-10
Address Hold
After R.E. CTTL
0.0
t
Av
A-10
Address Valid
After R.E. CTTL, T1 or T2W3
12.0
t
CASa
A-10
CAS Active
After R.E. CTTL, T2W or T2W1RF
12.0
t
CASh
A-10
CAS Hold
After R.E. CTTL
0.0
t
CASia
A-10
CAS Inactive
After R.E. CTTL, T3 or T3RF
12.0
t
CASLw
A-13
DRAM, PDM, CAS Width
At 0.8V, Both Edges
600.0
t
CCLKa
A-14
CCLK Active
After R.E. CTTL
12.0
t
CCLKh
A-14
CCLK Hold
After R.E. CTTL
0.0
t
CCLKia
A-14
CCLK Inactive
After R.E. CTTL
12.0
t
CDOh
A-14
CDOUT Hold
After R.E. CTTL
0.0
t
CDOv
A-14
CDOUT Valid
After R.E. CTTL
12.0
t
CTp
A-21
CTTL Clock Period (Note A)
R.E. CTTL to next R.E. CTTL
48.8
50,000
t
DCSh
A-17
Data Hold after EMCS (Note B)
R.E. EMCS to R.E. Data Float
10.0
t
Df
A-11
Data and RA11 Float (D0:7) (Note B)
After R.E. CTTL, T3 or T3H
t
CTp
/2
b
6
t
CTp
/2
a
12
t
Dh
A-11
Data Hold (D0:7)
After R.E. CTTL, T3 or T3H
t
CTp
/2
b
6
t
Dv
A-11
Data Valid (D0:7)
After R.E. CTTL, T2 or T2W1
12.0
t
DWEa
A-11
DWE Active
After R.E. CTTL, T2W2
12.0
t
DWEh
A-11
DWE Hold
After R.E. CTTL
0.0
t
DWEia
A-11
DWE Inactive
After R.E. CTTL, T3
12.0
t
EMCSa
A-16
EMCS Active
After R.E. CTTL, T2W1
12.0
t
EMCSh
A-16
EMCS Hold
After R.E. CTTL
0.0
t
EMCSia
A-16
EMCS Inactive
After R.E. CTTL T3
12.0
t
FSa
A-14
CFS0 Active
After R.E. CTTL
25.0
t
FSh
A-14
CFSO Hold
After R.E. CTTL
0.0
t
FSia
A-14
CFSO Inactive
After R.E. CTTL
25.0
t
MWDOf
A-18
MICROWIRE Data Float (Note B)
After R.E. MWCS
70.0
t
MWDOh
A-18
MICROWIRE Data Out Hold (Note B)
After F.E. MWCK
0.0
t
MWDOnf
A-18
MICROWIRE Data No Float (Note B)
After F.E. MWCS
0.0
70.0
t
MWDOv
A-18
MICROWIRE Data Out Valid (Note B)
After F.E. MWCK
70.0
t
MWITOp
A-19
MWDIN to MWDOUT
Propagation Time
70.0
t
MWDRYa
A-18
MWDRY Active
After R.E. of CTTL
0.0
35.0
t
MWDRYia
A-18
MWDRY Inactive
After F.E. MWCLK
0.0
70.0
t
PABCh
A-20
PB and MWRQST
After R.E. CTTL
0.0
t
PABCv
A-20
PB and MWRQST
After R.E. CTTL, T2W1
12.0
t
RASa
A-10
RAS Active
After R.E. CTTL, T2W1 or T2WRF
12.0
39
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