CAT5251UI-50TE13 datasheet(6/15 Pages) CATALYST

Part #	CAT5251UI-50TE13

Description	Quad Digitally Programmable Potentiometer (DPP) with 256 Taps and SPI Interface

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Manufacturer	CATALYST [Catalyst Semiconductor]

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6 / 15 page

6

CAT5251

Document No. 2017, Rev. D

Test

SYMBOL

PARAMETER

Min

Typ

Max

UNITS

Conditions

tSU

Data Setup Time

50

ns

tH

Data Hold Time

50

ns

tWH

SCK High Time

125

ns

tWL

SCK Low Time

125

ns

fSCK

Clock Frequency

DC

3

MHz

tLZ

HOLD to Output Low Z

50

ns

tRI(1)

Input Rise Time

2

µs

tFI(1)

Input Fall Time

2

µs

tHD

HOLD Setup Time

100

ns

tCD

HOLD Hold Time

100

ns

tV

Output Valid from Clock Low

200

ns

tHO

Output Hold Time

0

ns

tDIS

Output Disable Time

250

ns

tHZ

HOLD to Output High Z

100

ns

tCS

CS High Time

250

ns

tCSS

CS Setup Time

250

ns

tCSH

CS Hold Time

250

ns

NOTE:

(1) This parameter is tested initially and after a design or process change that affects the parameter.

A.C. CHARACTERISTICS

Over recommended operating conditions unless otherwise stated.

CL = 50pF

POWER UP TIMING (1)(2)

Over recommended operating conditions unless otherwise stated.

Symbol

Parameter

Min

Typ

Max

Units

tPUR

Power-up to Read Operation

1

ms

tPUW

Power-up to Write Operation

1

ms

NOTE:

(1) This parameter is tested initially and after a design or process change that affects the parameter.

(2) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated.

XDCP TIMING

Symbol

Parameter

Min

Max

Units

tWRPO

Wiper Response Time After Power Supply Stable

5

10

µs

tWRL

Wiper Response Time After Instruction Issued

5

10

µs

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