AS1105 datasheet(6/17 Pages) AMSOSRAM

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AS1105

Datasheet - Electrical Character i s t ics

6 Electrical Characteristics

VDD = 5V, RSET = 9.53k

Ω±1%, TA = TMIN to TMAX, unless otherwise noted.

Table 3. Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VDD

Operating Supply Voltage

4.0

5.0

5.5

IDDSD

Shutdown Supply Current

All digital inputs at VDD or GND,

TA = +25ºC

µA

IDD

Operating Supply Current

RSET = open circuit

500

µA

All segments and decimal point on,

ISEG = -40mA

330

fOSC

Display Scan Rate

500

800

1300

IDIGIT

Digit Drive Sink Current

VOUT = 0.65V

320

ISEG

Segment Drive Source Current

TA = +25ºC, VOUT = (VDD -1V)

-30

-40

-45

ΔISEG

Segment Drive Current Matching

3.0

IDIGIT

Digit Drive Source Current

Digit off, VDIGIT = (VDD -0.3V)

-2

ISEG

Segment Drive Sink Current

Segment off, VSEG = 0.3V

Logic Inputs

IIH, IIL

Input Current DIN, CLK, LOAD

VIN = 0V or VDD

-1

µA

VIH

Logic High Input Voltage

3.5

VIL

Logic Low Input Voltage

0.8

VOH

Output High Voltage

DOUT, ISOURCE = -1mA

VDD - 1

VOL

Output Low Voltage

DOUT, ISINK = 1.6mA

0.4

Hysteresis Voltage

DIN, CLK, LOAD

Timing Characteristics

tCP

CLK Clock Period

100

tCH

CLK Pulse Width High

tCL

CLK Pulse Width Low

tCSH

CLK Rise to LOAD Rise Hold Time

tDS

DIN Setup Time

tDH

DIN Hold Time

tDO

Output Data Propagation Delay

CLOAD = 50pF

tLDCK

LOAD Rising Edge to Next Clock

Rising Edge

tCSW

Minimum LOAD Pulse High

tDSPD

Data-to-Segment Delay

2.25

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