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COM81C17 Scheda tecnica(PDF) 13 Page - SMSC Corporation

Il numero della parte COM81C17
Spiegazioni elettronici  TWENTY PIN UART (TPUART)
PDF  18 Pages
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Produttore elettronici  SMSC [SMSC Corporation]
Homepage  http://www.smsc.com
Logo SMSC - SMSC Corporation

COM81C17 Scheda tecnica(HTML) 13 Page - SMSC Corporation

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Table 9 - AC CHARACTERISTICS
SYMBOL
DESCRIPTION
MIN
TYP
MAX
UNITS
AC CHARACTERISTICS
WRITE CYCLE
t1
t2
t3
t4
t5
nCS, RS to nWR
↓ setup time
nCS, RS hold time to nWR
↑
nWR pulse width
Data BUS in setup time to nWR
↑
Data BUS in hold time to nWR
↑
50
0
100
75
10
ns
ns
ns
ns
ns
READ CYCLE
t6
t7
t8
t9
t10
nCS, RS to nWR
↓ setup time
nCS, RS hold time to nWR
↑
nWR pulse width
Data BUS in setup time to nWR
↑
Data BUS in hold time to nWR
↑
50
0
100
0
0
60
60
ns
ns
ns
ns @50pf max
ns @50pf max
GENERAL TIMING
t11
t12
t13
t14
t15
Reset Pulse Width
nCP1 active to nINT
nWR rising edge to nCP2 change
CP1, CP2 pulse width
Read Write Interval
1.0
1.0
100
300
200
µs
µs @25pf
µs
µs
ns
nCP1, nCP2 data
Rise Time
Fall Time
30
30
ns @25pf
ns @25pf
CLOCK FREQUENCY
Rise Time
Fall Time
Internal Baud Rate Mode
External Baud Rate Mode
Duty Cycle
30
30
11.0
1.6
40/60
ns
ns
MHz
MHz
%



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