CAP1208 datasheet(12/67 Pages) MICROCHIP

12 / 67 page

8-Channel Capacitive Touch Sensor

Datasheet

DS00001570B-page 12

 2014 Microchip Technology Inc.

Power-Up Timer

Period

tPWRT

Brown-Out Reset

Voltage Delay

tBORDC

1µs

VDD = VBOR - 1

TIMING

Time to

Communications

Ready

tCOMM_DLY

Time to First

Conversion Ready

tCONV_DLY

170

200

I/O PINS

Output Low Voltage

VOL

0.4

ISINK_IO = 8mA

Output High Voltage

VOH

VDD -

0.4

VISOURCE_IO = 8mA

Input High Voltage

VIH

2.0

Input Low Voltage

VIL

0.8

Leakage Current

ILEAK

±5

µA

powered or unpowered

TA < 85°C

pull-up voltage < 3.6V if

unpowered

SMBUS TIMING

Input Capacitance

CIN

5pF

Clock Frequency

fSMB

400

kHz

Spike Suppression

tSP

Bus Free Time Stop

to Start

tBUF

1.3

µs

Start Setup Time

tSU:STA

0.6

µs

Start Hold Time

tHD:STA

0.6

µs

Stop Setup Time

tSU:STO

0.6

µs

Data Hold Time

tHD:DAT

µs

When transmitting to the master

Data Hold Time

tHD:DAT

0.3

µs

When receiving from the master

Data Setup Time

tSU:DAT

0.6

µs

Clock Low Period

tLOW

1.3

µs

Clock High Period

tHIGH

0.6

µs

Clock / Data Fall

Time

tFALL

300

Min = 20+0.1CLOAD ns

Table 2.2 Electrical Specifications (continued)

VDD = 3V to 5.5V, TA = 0°C to 85°C, all Typical values at TA = 25°C unless otherwise noted.

CHARACTERISTIC

SYMBOL

MIN

TYP

MAX

UNIT

CONDITIONS

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