MCP4021 datasheet(8/64 Pages) MICROCHIP

8 / 64 page

MCP4021/2/3/4

DS21945E-page 8

FIGURE 1-3:

High-Voltage Increment Timing Waveform.

U/D

tHCUR

tLO

tHI

tHUC

tCSHI

1/fUD

tCSLO

tHCUF

tHUC

tHCUF

12V

SERIAL TIMING CHARACTERISTICS

Electrical Specifications: Unless otherwise noted, all parameters apply across the specified operating ranges.

Extended (E): VDD = +2.7V to 5.5V, TA = -40°C to +125°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

CS Low Time

tCSLO

5—

—

µs

CS High Time

tCSHI

500

—

U/D High Time

tHI

500

—

U/D Low Time

tLO

500

—

Up/Down Toggle Frequency

fUD

——

MHz

HV U/D to CS Hold Time

tHUC

1.5

—

µs

HV CS to U/D Low Setup Time

tHCUF

8—

—

µs

HV CS to U/D High Setup Time

tHCUR

4.5

—

µs

Wiper Settling Time

0.5

—

µs

2.1 k

Ω, CL = 100 pF

1—

—

µs

5 k

Ω, CL = 100 pF

2—

—

µs

10 k

Ω, CL = 100 pF

—

µs

50 k

Ω, CL = 100 pF

Wiper Response on Power-up

tPU

—200

—

Internal EEPROM Write Time

twc

—

@25°C

—

-40°C to +125°C

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