A6812
DABiC-IV 20-Bit Serial-Input
Latched Source Driver
TRUTH TABLE
Serial
Shift Register Contents
Data Clock
Input Input I1 I2 I3 ... IN-1 IN
IN
Serial
Latch Contents
Output Contents
Data Strobe
Output Input I1 I2 I3 ... IN-1 IN Blanklng I1 I2 I3 ... IN-1
H
H R1 R2 ... RN-2 RN-1 RN-1
L
L R1 R2 ... RN-2 RN-1 RN-1
X
R1 R2 R3 ... RN-1 RN
RN
X X X ... X X
X
L
R1 R2 R3 ... RN-1 RN
P1 P2 P3 ... PN-1 PN
PN
H
P1 P2 P3 ... PN-1 PN
L
X X X ... X X
H
L = Low Logic Level H = High Logic Level X = Irrelevant P = Present State R = Previous State
P1 P2 P3 ... PN-1 PN
L L L ... L L
Allegro MicroSystems, Inc.
5
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com