ST62T40B datasheet(65/76 Pages) STMICROELECTRONICS

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ST62T40B/E40B

6.6 TIMER CHARACTERISTICS

(TA = -40 to +85°C unless otherwise specified)

Note*: When available.

6.7 SPI CHARACTERISTICS

(TA = -40 to +85°C unless otherwise specified)

6.8 LCD ELECTRICAL CHARACTERISTICS

(TA = -40 to +85°C unless otherwise specified)

Notes:

1. The DC offset refers to all segment and common outputs. It is the difference between the measured voltage value and nominal value for

every voltage level.

2. An external resistor network is required when VLCD is lower then 4.5V.

6.9 PSS ELECTRICAL CHARACTERISTICS (When available)

(TA = -40 to +85°C unless otherwise specified

Symbol

Parameter

Test Conditions

Value

Unit

Min.

Typ.

Max.

fIN

Input Frequency on TIMER Pin*

MHz

Pulse Width at TIMER Pin*

VDD = 3.0V

VDD >4.5V

125

µs

Symbol

Parameter

Test Conditions

Value

Unit

Min.

Typ.

Max.

FCL

Clock Frequency

Applied on Scl

MHz

tSU

Set-up Time

Applied on Sin

Hold Time

Applied onSin

100

Symbol

Parameter

Test Conditions

Value

Unit

Min.

Typ.

Max.

Vos

DC Offset Voltage

VLCD = Vdd, no load

VOH

COM High Level, Output Voltage

SEG High Level, Output Voltage

I=100µA, VLCD=5V

I=50µA, VLCD=5V

4.5

VOL

COM Low Level, Output Voltage

SEG Low Level, Output Voltage

I=100µA, VLCD=5V

I=50µA, VLCD=5V

0.5

VLCD

Display Voltage

See Note 2

VDD -0.2

Symbol

Parameter

Test Conditions

Value

Unit

Min.

Typ.

Max.

VPSS

PSS pin Input Voltage

Vss

VDD

IPSS

PSS pin Input Current

VPSS=5.0V, TA= 25°C

PSS Running

PSS Stopped

350

µA

637

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