CS8401A Ver la hoja de datos (PDF) - Cirrus Logic
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CS8401A Datasheet PDF : 34 Pages
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CS8401A CS8402A
DIGITAL CHARACTERISTICS - RS422 DRIVERS
(TXP, TXN pins only; VD+ = 5V ±10%)
Parameter
Symbol
Min
Typ
Max
Output High Voltage
IOH = -30 mA
VOH
VD+- 0.7 VD+ - 0.4
Output Low Voltage
IOL = 30 mA
VOL
0.4
0.7
Units
V
V
SWITCHING CHARACTERISTICS - CS8401A PARALLEL PORT
(TA = 25 °C for suffixes ’-CP’ and ’-CS’; TA = -40 to 85 °C for suffixes ’-IP’ and ’-IS’)
Parameter
Symbol
Min
Typ
Max
ADDRESS valid to CS low
tadcss
13.5
CS high to ADDRESS invalid
tcsadh
0
RD/WR valid to CS low
trwcss
10
CS low to RD/WR invalid
tcsrwi
35
CS low
tcsl
35
DATA valid to CS rising
RD/WR low (writing)
tdcssw
32
CS high to DATA invalid
RD/WR low (writing)
tcsdhw
0
CS falling to DATA valid
RD/WR high (reading)
tcsddr
35
CS rising to DATA Hi-Z
RD/WR high (reading)
tcsdhr
5
A4 - A0
CS
RD/WR
Writing
D7 - D0
t adcss
t rwcss
t csl
t csrwi
t dcssw
t csadh
t csdhw
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
RD/WR
Reading
D7 - D0
DS60F1
t csddr
t csdhr
CS8401A Parallel Port Timing
3
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