SX8652ICSTRT Semtech, SX8652ICSTRT Datasheet - Page 9

• Manufacturer Part Number: SX8652ICSTRT
• Description: 4/5-wire Resistive Touch Screen Controller (SPI)
• Manufacturer: Semtech

2.5. Host Interface Specifications
(i) All timing specifications refer to voltage levels (50% VDD, V
2.6. Host Interface Timing Waveforms
Revision V1.6/July 2010
©2010 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
DOUT
SCLK
Parameter
SPI TIMING SPECIFICATIONS
SCLK
Clock Frequency
Duty Cycle
NCS edge to first SCLK “↑”
NCS edge to DOUT Low
SCLK High Pulse Width
SCLK Low Pulse Width
Data Setup Time
Data Valid to SCLK Hold Time
Data Output Delay after SCLK “↓”
NCS “↑” to SCLK Ignored
NCS “↑” to DOUT Hi-Z state
NCS Hold Time
CSN
DIN
tCSS
tDCD
tDS
(i)
tDH
Table 6. Host Interface Specifications
tCKL
Figure 4. SPI Timing Waveform
Symbol
f
duty
T
T
T
T
T
T
T
T
T
T
SCLK
CSS
DCD
CKH
CKL
DS
DH
DOD
CSI
CCZ
CSW
Condition
15kV ESD Low Power 4-Wire / 5-Wire Resistive
OH
Page 9
tCKH
, V
OL
) defined in Table 6 unless otherwise mentioned.
Touchscreen Controller with SPI Interface
D11
tDOD
Min
150
40
50
80
80
40
70
50
Typ
www.semtech.com
5000
Max
tCCZ
100
DATASHEET
60
70
90
SX8652
tCSI
tCSW
50%VDD
50%VDD
50%VDD
VOH
VOL
Unit
kHz
ns
%