CS8412 데이터 시트보기 (PDF) - Unspecified
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CS8412 Datasheet PDF : 38 Pages
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CS8411 CS8412
DIGITAL CHARACTERISTICS - RS422 RECEIVERS (RXP, RXN pins only; VD+ = 5V ±
10%)
Parameter
Symbol Min
Typ
Max Unit
Input Resistance
(-7V < VCM < 7V) Note 4 ZIN
10
kΩ
Differential Input Voltage, RXP to RXN (-7V < VCM < 7V)
VTH
200
mV
Note 4,5
Input Hysteresis
VHYST
50
mV
Notes: 4. VCM - Input Common Mode Range
5. When the receiver inputs are configured for singe ended operation (e.g. consumer configuration) the
signal amplitude must exceed 400m Vp-p for the differential voltage on RXP to RXN to exceed 200mV.
This represents twice the minimum signal level of 200 mVp-p specified in CP340/1201 and IEC-958
(which are not RS-422 compliant).
SWITCHING CHARACTERISTICS - CS8411 PARALLEL PORT (TA = 25 °C for suf-
fixes '-CP' and '-CS'; TA = -40 to 85 °C for suffixes '-IP' and '-IS'; VD+, VA+ = 5V ± 10%; Inputs: Logic 0 = DGND,
logic 1 = VD+; CL = 20 pF)
Parameter
Symbol Min
Typ
Max Unit
ADDRESS valid to CS low
CS high to ADDRESS invalid
RD/WR valid to CS low
CS low to RD/WR invalid
CS low
DATA valid to CS rising
CS high to DATA invalid
CS falling to DATA valid
CS rising to DATA Hi-Z
RD/WR low (writing)
RD/WR low (writing)
RD/WR high (reading)
RD/WR high (reading)
tadcss
tcsadh
trwcss
tcsrwi
tcsl
tdcssw
tcsdhw
tcsddr
tcsdhr
13.5
0
10
35
35
32
0
5
ns
ns
ns
ns
ns
ns
ns
35
ns
ns
A4 - A0
CS
RD/WR
Writing
D7 - D0
tadcss
t rwcss
t csl
t csrwi
t dcssw
t csadh
t csdhw
RD/WR
Reading
D7 - D0
t csddr
CS8411 Parallel Port Timing
t csdhr
4
DS61F1
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