CPC7220 Datasheet, PDF (9/11 Pages) Clare, Inc. – Low Charge Injection 8-Channel High Voltage Analog Switch

CPC7220
Truth Table
D0 D1 D2 D3 D4 D5 D6 D7 LE CL SW0 SW1 SW2 SW3 SW4 SW5 SW6 SW7
L
L L OFF
H
L L ON
L
LL
OFF
H
LL
ON
L
LL
OFF
H
LL
ON
L
LL
OFF
H
LL
ON
L
LL
OFF
Y _H
LL
ON
L
LL
OFF
R H
LL
ON
L
LL
OFF
H
LL
ON
A _{L L L}
OFF
HLL
ON
X XXX X XXX H L
HOLD PREVIOUS STATE
IN ^{X X X X X X X X X H OFF OFF OFF OFF OFF OFF OFF OFF}
Notes:
1. The eight switches operate independently.
2. Serial data is clocked in on the L→ H transition CLK.
IM 3. The switches go to a state retaining their present condition at the rising edge of LE. When LE is low the shift
register data flows through the latch.
4. D_OUT is high when switch 7 is on.
5. Shift register clocking has no effect on the switch states if LE is H.
PREL ^{6. The clear input overrides all other inputs.}
R00H
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