HV5308 datasheet(9/17 Pages) MICROCHIP

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DS20005425A-page 9

HV5308 / HV5408

3.0

FUNCTIONAL DESCRIPTION

Table 3-1 provides functional information about

HV5308 / HV5408.

Note:

H = High level, L = Low level, ↑ = Low-to-

High transition

Note:

H = High level, L = Low level, X= Don’t Care

3.1

Power-Up and Recommended

Operating Conditions

To power-up HV5308 / HV5408, perform the following

power-up sequence:

Connect ground

Apply VDD

Set all inputs (Data, CLK, LE, etc.) to a known

state

Apply VPP

The VPP should not fall below VDD or float during

operation.

To power-down the device, reverse the steps above.

FIGURE 3-1:

Input and Output Equivalent Circuits

TABLE 3-1:

FUNCTIONAL TABLE CLK

DATA IN

CLK

DATA OUT

↑

XNo ↑

No change

TABLE 3-2:

FUNCTIONAL TABLE LE, OE

DATA IN

HVOUT

All HVOUT= Low

Previous latched data

TABLE 3-3:

RECOMMENDED OPERATING CONDITIONS (-40°C to 85°C)

Symbol

Parameter

Min

Max

Units

VDD

Logic voltage supply

10.8

13.2

VPP

High voltage supply

8.0

VIH

Input high voltage

VDD- 2.0

VDD

VIL

Input low voltage

2.0

fCLK

Clock frequency

8.0

MHz

VDD

DATA

INPUT

GND

VPP

GND

OUT

Logic Inputs

GND

DATA OUT

Logic Data Output

High Voltage Outputs

VDD

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