HV6810 データシートの表示（PDF） - Microchip Technology
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HV6810 Datasheet PDF : 14 Pages
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HV6810
3.0 FUNCTIONAL DESCRIPTION
Follow the steps below to power up and power down
the HV6810.
POWER-UP AND POWER-DOWN SEQUENCE 1
Power-up
Power-down
Step
Description
Step
Description
1 Connect ground VSS.
1 Remove VBB.
2 Apply VDD.
2 Remove all inputs.
3 Set all inputs (Data, CLK, Enable, etc.) to a
3 Remove VDD.
known state.
4 Apply VBB.
4 Disconnect ground VSS.
Note 1: The VBB should not drop below VDD or float during operation.
FUNCTION TABLE 1
,
Serial
Data
Input
Clock
Input
Shift Register Contents
I1 I2 I3... IN-1
IN
H L to H H R1 R2...RN–2 RN–1
L L to H L R1 R2...RN–2 RN–1
X H to L R1 R2 R3...RN–1 RN
XX
X...X
X
—
— P1 P2 P3...PN–1
PN
——
—
—
Note 1:
L = Low logic level
H = High logic level
X = Don’t care
P = Present state
R = Previous state
Serial LE
Data Strobe
Output Input I1
RN–1
RN–1
RN
X
PN
—
——
——
——
L
R1
H
P1
—X
Latch Contents
Blanking
Output Contents
I2 I3... IN-1
IN
Input I1 I2 I3... IN-1 IN
—
—
—
—
——
—
—
—
—
—
—
——
—
—
—
—
—
—
——
—
—
R2 R3...RN–1 RN
—
——
—
—
P2 P3...PN–1 PN
L
P1 P2 P3...PN–1 PN
X
X...X
X
H
LL
L...L
L
VDD
VDD
VBB
DATA
INPUT
DATA
Q
OUT
VSS
Input Equivalent Circuit
GND
Logic Data Output
FIGURE 3-1:
Input and Output Equivalent Circuits.
VSS
High Voltage Output
2016 Microchip Technology Inc.
DS20005626A-page 7
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