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CDP1854A/3 датащи(PDF) 17 Page - Intersil Corporation

номер детали CDP1854A/3
подробное описание детали  Programmable Universal Asynchronous Receiver/Transmitter (UART)
PDF  21 Pages
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производитель  INTERSIL [Intersil Corporation]
домашняя страница  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CDP1854A/3 датащи(HTML) 17 Page - Intersil Corporation

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Dynamic Electrical Specifications TA = -40oC to +85oC, VDD ±5%, tR, tF = 20ns, VIH = 0.7 VDD, VIL = 0.3 VDD, CL = 100pF,
(See Figure 9)
PARAMETER
VDD
(V)
LIMITS
UNITS
CDP1854A
CDP1854AC
(NOTE 1)
TYP
(NOTE 2)
MAX
(NOTE 1)
TYP
(NOTE 2)
MAX
INTERFACE TIMING - MODE 0
Minimum Pulse Width
CRL
tCRL
5
100
150
100
150
ns
10
50
75
-
-
ns
MR
tMR
5
200
400
200
400
ns
10
100
200
-
-
ns
Minimum Setup Time
Control Word to CRL
tCWC
5
40804080
ns
10
20
50
-
-
ns
Minimum Hold Time
Control Word after CRL
tCCW
5
100
150
100
150
ns
10
50
75
-
-
ns
Propagation Delay Time
SFD High to SOD
tSFDH
5
200
300
200
300
ns
10
100
150
-
-
ns
SFD Low to SOD
tSFDL
5
75
120
75
120
ns
10
40
60
-
-
ns
RRD High to Receiver Register
High Impedance
tRRDH
5
200
300
200
300
ns
10
100
150
-
-
ns
RRD Low to Receiver Register Active
tRRDL
5
100
150
100
150
ns
10
50
75
-
-
ns
NOTES:
1. Typical values for TA = 25
oC and nominal voltages.
2. Maximum limits of minimum characteristics are the values above which all devices function.
FIGURE 9. MODE 0 INTERFACE TIMING DIAGRAM
tCWC
CONTROL INPUT WORD TIMING
CONTROL WORD INPUT
CRL
STATUS OUTPUTS
SFD
STATUS OUTPUT TIMING
tCRL
tSFDH
R BUS 0
R BUS 7
RECEIVER REGISTER DISCONNECT TIMING
tRRDH
RRD
tRRDL
tSFDL
tCCW
CDP1854A, CDP1854AC



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