AS1115 datasheet(4/24 Pages) AMSCO

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AS1115

Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s

6 Electrical Characteristics

VDD = 2.7 to 5.5V, RSET = 9.53k

Ω, TAMB = -40 to +85°C, typ. values @ TAMB = +25ºC, VDD = 5.0V (unless otherwise

specified).

Table 3. Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDD

Operating Supply Voltage

2.7

5.5

IDDSD

Shutdown Supply Current

All digital inputs at VDD or

GND, TAMB = +25ºC

0.2

µA

IDD

Operating Supply Current

RSET = open circuit.

0.35

0.6

All segments and decimal

point on; ISEG = -40mA.

335

fOSC

Display Scan Rate

8 digits scanned

0.48

0.96

kHz

IDIGIT

Digit Drive Sink Current

VOUT = 0.65V

320

ISEG

Segment Drive Source Current

VDD = 5.0V, VOUT = (VDD -1V)

-35

-41

-47

ΔISEG

Segment Drive Current Matching

ISEG

Segment Drive Source Current

Average Current

Table 4. Logic Inputs/Outputs Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

IIH, IIL

Input Current SDA, SCL

VIN = 0V or VDD

-1

µA

VIH

Logic High Input Voltage SDA, SCL

0.7xVDD

VIL

Logic Low Input Voltage SDA, SCL

0.3xVDD

VOL(SDA)

SDA Output Low Voltage

ISINK = 3mA

0.4

VKEYopen

Keyscan Open Input Voltage

0.8xVDD

VKEYshort

Keyscan Short Input Voltage

0.7x VDD

VOL(IRQ)

Interrupt Output Low Voltage

ISINK = 3mA

0.4

ΔVI

Hysteresis Voltage

DIN, CLK, LD/CS

Capacitive Load for Each Bus Line

400

Open Detection Level Threshold

0.7x

VDD

0.75x

VDD

0.8x

VDD

Short Detection Level Threshold

0.05x

VDD

0.1x

VDD

0.15x

VDD

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