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TS68C429AVF1 View Datasheet(PDF) - Atmel Corporation

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TS68C429AVF1 Datasheet PDF : 43 Pages
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TS68C429A
Clock Timing
Table 6. Clock System (CLK SYS)
Symbol
Parameter
tcyc S
tCLS, tCHS
tcrS, tcfS
Clock Period
Clock Pulse Width
Rise and Fall Times
Min
Max
Unit
50
2000
ns
20
ns
5
ns
Table 7. Clock ARINC (CLK ARINC)
Note:
Symbol
tcyc A
tCLA, tCHA
tcrA, tcfA
1. tcyc A 4 x tcyc S.
Parameter
Cycle Time(1)
Clock Pulse Width
Rise and Fall Times
Min
Max
Unit
200
8000
ns
240
ns
5
ns
AC Electrical
Characteristics
With VCC = 5 VDC ± 10% VSS = 0 VDC.
IEIxx, IEOxx, IACKxx, must be understood as generic signals (xx = RX and TX).
Figure 4. Read Cycle
Notes: 1. LDS/UDS can be asserted on the next or previous CLK-SYS period after CS goes low but (4) must be met for the next
period.
2. The cycle ends when the first of CS, LDS/UDS goes high.
11
2120A–HIREL–08/02
 

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