SCN26562C4N48 查看數據表（PDF） - Philips Electronics
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SCN26562C4N48 Datasheet PDF : 17 Pages
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Philips Semiconductors
Dual universal serial communications controller (DUSCC)
Product specification
SCN26562
AC ELECTRICAL CHARACTERISTICS (Continued)
EOPN
(OUTPUT)
RTxDRQN OR
TxDRQN
tWRLEOL
tWRHEOZ
CEN
WRN
tWRLTRH
A
D7–D0
EOPN
(INPUT)
tEILWRH
tWRHEIH
A The TxFIFO is addressed during this write cycle.
Figure 12. Transmit Dual Address DMA Timing
SD00214
SYMBOL
PARAMETER
tWRLTRH
tWRLEOL
tWRHEOZ
tEILWRH
tWRHEIH
WRN low to Tx DMA REQN high
WRN low to EOPN output low
WRN high to EOPN output high impedance
EOPN input low to WRN high
WRN high to EOPN input high
LIMITS
SCN26562C4
SCN26562C2
Min
Max
Min
Max
320
320
225
225
50
225
50
225
50
50
UNIT
ns
ns
ns
ns
ns
1995 May 1
12
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