CAT5241UI-50 datasheet(4/16 Pages) CATALYST

Part #	CAT5241UI-50

Description	Quad Digitally Programmable Potentiometers (DPP?? with 64 Taps and 2-wire Interface

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Manufacturer	CATALYST [Catalyst Semiconductor]

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4

CAT5241

Document No. 2011, Rev. J

Symbol

Parameter

Min

Typ

Max

Units

fSCL

Clock Frequency

400

kHz

TI(1)

Noise Suppression Time Constant at SCL, SDA Inputs

50

ns

tAA

SLC Low to SDA Data Out and ACK Out

0.9

µs

tBUF(1)

Time the Bus Must be Free Before a New

1.2

µs

Transmission Can Start

tHD:STA

Start Condition Hold Time

0.6

µs

tLOW

Clock Low Period

1.2

µs

tHIGH

Clock High Period

0.6

µs

tSU:STA

Start Condition SetupTime (For a Repeated Start Condition)

0.6

µs

tHD:DAT

Data in Hold Time

0

ns

tSU:DAT

Data in Setup Time

100

ns

tR(1)

SDA and SCL Rise Time

0.3

µs

tF(1)

SDA and SCL Fall Time

300

ns

tSU:STO

Stop Condition Setup Time

0.6

µs

tDH

Data Out Hold Time

50

ns

Note:

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

CAPACITANCE

TA = 25°C, f = 1.0 MHz, VCC = 5V

Symbol

Test

Conditions

Min

Typ

Max

Units

CI/O(1)

Input/Output Capacitance (SDA)

VI/O = 0V

8

pF

CIN(1)

Input Capacitance (A0, A1, A2, A3, SCL)

VIN = 0V

6

pF

POWER UP TIMING (1)

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

D.C. OPERATING CHARACTERISTICS

Over recommended operating conditions unless otherwise stated.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Units

ICC

Power Supply Current

fSCL = 400kHz

1

mA

ISB

Standby Current (VCC = 5.0V)

VIN = GND or VCC; SDA Open

1

µA

ILI

Input Leakage Current

VIN = GND to VCC

10

µA

ILO

Output Leakage Current

VOUT = GND to VCC

10

µA

VIL

Input Low Voltage

-1

VCC x 0.3

V

VIH

Input High Voltage

VCC x 0.7

VCC + 1.0

V

VOL1

Output Low Voltage (VCC = 3.0V)

IOL = 3 mA

0.4

V

A.C. CHARACTERISTICS

Over recommended operating conditions unless otherwise stated.

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