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CDP1854AC/3 датащи(PDF) 13 Page - Intersil Corporation

номер детали CDP1854AC/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

CDP1854AC/3 датащи(HTML) 13 Page - Intersil Corporation

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5-54
Dynamic Electrical Specifications TA = -40oC to +85oC, VDD ±5%, tR, tF = 20ns, VIH = 0.7 VDD, VIL = 0.3 VDD, CL = 100pF,
(See Figure 5)
PARAMETER
VDD
(V)
LIMITS
UNITS
CDP1854A
CDP1854AC
(NOTE 1)
TYP
(NOTE 2)
MAX
(NOTE 1)
TYP
(NOTE 2)
MAX
CPU INTERFACE - WRITE TIMING - MODE 1
Minimum Pulse Width
TPB
tTT
5
100
150
100
150
ns
10
50
75
-
-
ns
Minimum Setup Time
RSEL to Write
tRSW
5
50755075
ns
10
25
40
-
-
ns
Data to Write
tDW
5
-30
0
-30
0
ns
10
-15
0
-
-
ns
Minimum Hold Time
RSEL after Write
tWRS
5
50755075
ns
10
25
40
-
-
ns
Data after Write
tWD
5
75
125
75
125
ns
10
40
60
-
-
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.
Dynamic Electrical Specifications TA = -40oC to +85oC, VDD ±5%, tR, tF = 20ns, VIH = 0.7 VDD, VIL = 0.3 VDD, CL = 100pF,
(See Figure 6)
PARAMETER
VDD
(V)
LIMITS
UNITS
CDP1854A
CDP1854AC
MIN
(NOTE 1)
TYP
(NOTE 2)
MAX
MIN
(NOTE 1)
TYP
(NOTE 2)
MAX
CPU INTERFACE - READ TIMING - MODE 1
Minimum Pulse Width
TPB
tTT
5
-
100
150
-
100
150
ns
10
-
50
75
-
-
-
ns
Minimum Setup Time
RSEL to TPB
tRST
5
-
50
75
-
50
75
ns
10
-
25
40
-
-
-
ns
Minimum Hold Time
RSEL after TPB
tTRS
5
-
50
75
-
50
75
ns
10
-
25
40
-
-
-
ns
Read to Data Access Time
tRDDA
5
-
200
300
-
200
300
ns
10
-
100
150
-
-
-
ns
Read to Data Valid Time
tRDV
5
-
200
300
-
200
300
ns
10
-
100
150
-
-
-
RESEL to Data Valid Time
tRSDV
5
-
150
225
-
150
225
ns
10
-
75
125
-
-
-
ns
Hold Time
Data after Read
tRDH
5
50
150
-
50
150
-
ns
10
25
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.
CDP1854A, CDP1854AC



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