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SX8674ICSTRT датащи(PDF) 11 Page - Semtech Corporation

номер детали SX8674ICSTRT
подробное описание детали  Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing
PDF  64 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8674ICSTRT датащи(HTML) 11 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 25
th July 2011
11
www.semtech.com
SX8674/SX8675/SX8676
Haptics Enabled Multitouch 4/5-Wire
Resistive Touchscreen Controller with Proximity Sensing
Symbol
Description
Conditions
Min
Typ.
Max
Unit
Reset
VPOR
Power-On-Reset voltage
Cf. §10
-
1.3
-
V
tRESET
Reset time after POR
Cf. §10
-
-
1
ms
tPULSE
Reset pulse from host uC
Cf. §10
1
-
-
us
I2C Interface
fSCL
SCL clock frequency
-
-
-
400
kHz
tHD;STA
Hold time (repeated) START
condition
-
0.6
-
-
µs
tLOW
LOW period of the SCL clock
-
1.3
-
-
µs
tHIGH
HIGH period of the SCL clock
-
0.6
-
-
µs
tSU;STA
Set-up time for a repeated
START condition
-
0.6
-
-
µs
tHD;DAT
Data hold time
-
0
-
-
µs
tSU;DAT
Data set-up time
-
100
-
-
ns
tr
Rise time of both SDA and SCL
-
20+0.1Cb
-
300
ns
tf
Fall time of both SDA and SCL
-
20+0.1Cb
-
300
ns
tSU;STO
Set-up time for STOP condition
-
0.6
-
-
µs
tBUF
Bus free time between a STOP
and START condition
-
1.3
-
-
µs
Cb
Capacitive load for each bus line
-
-
-
400
pF
tSP
Pulse width of spikes
suppressed by the input filter
Up to 0.3xVDD from
GND, down to 0.7xVDD
from VDD
50
-
-
ns
Miscellaneous
FOSCL
Low frequency internal oscillator
-
-
32
-
kHz
FOSCH
High frequency internal oscillator
-
-
1.8
-
MHz
(1)
Guaranteed by design.
(2)
PWM mode can introduce an additional error of 2.5% of full scale.
Table 4 – Electrical Specifications



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