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PDF LC717A10PJ Data sheet ( Hoja de datos )
| Número de pieza | LC717A10PJ | |
| Descripción | Capacitance-Digital-Converter LSI | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : EN*A2214
LC717A10PJ
Advance Information
CMOS LSI
Capacitance-Digital-Converter LSI
for Electrostatic Capacitive Touch
Sensors
http://onsemi.com
Overview
The LC717A10PJ is a high-performance and low-cost capacitance-digital-converter LSI for electrostatic
capacitive touch sensor, especially focused on usability.
It has 16 channels capacitance-sensor input. This makes it ideal for use in the products that need many switches.
Since the calibration function and the judgment of ON/OFF are automatically performed in LSI internal, it can
make development time more short. A detection result (ON/OFF) for each input can be read out by the serial
interface (I2C compatible bus or SPI).
Also, measurement value of each input can be read out as 8-bit digital data. Moreover, gain and other parameters
can be adjusted using serial interface.
Function
Detection system: Differential capacitance detection (Mutual capacitance type)
Input capacitance resolution: Can detect capacitance changes in the femto Farad order
Measurement interval (16 differential inputs): 30ms (Typ) (at initial configuration),
6ms (Typ) (at minimum interval configuration)
External components for measurement: Not required
Interface: I2C * compatible bus or SPI selectable.
Current consumption: 570A (Typ) (VDD = 2.8V), 1.3mA (Typ) (VDD = 5.5V)
Supply voltage: 2.6V to 5.5V
Detection operations: Switch
Packages: SSOP30
* I2C Bus is a trademark of Philips Corporation.
This document contains information on a new product. Specifications and information
herein are subject to change without notice.
ORDERING INFORMATION
See detailed ordering and shipping information on page 14 of this data sheet.
Semiconductor Components Industries, LLC, 2014
May, 2014
SSOP30(225mil)
53014HK No.A2214-1/14
1 page  
LC717A10PJ
SPI Bus Timing Characteristics at VSS = 0, VDD = 2.6 to 5.5V, Ta = -40 to +105C
*Not tested at low temperature before shipment
Parameter
Symbol
Pin Name
Conditions
min
typ
max
SCK clock frequency
SCK clock Low time
fSCK
tLOW
SCK
SCK
5
100
90
SCK clock High time
tHIGH
SCK
100
90
Input signal rise/fall time
nCS setup time
SCK clock setup time
Data setup time
Data hold time
nCS hold time
SCK clock hold time
nCS standby pulse width
tr / tf
tSU;NCS
tSU;SCK
tSU;SI
tHD;SI
tHD;NCS
tHD;SCK
tCPH
nCS
SCK
SI
nCS
SCK
nCS
SCK
SCK
SI
SCK
SI
nCS
SCK
nCS
SCK
nCS
300
200
90
100
90
100
20
100
30
200
90
700
90
300
90
Output high impedance time
from nCS
Output data determination time
tCHZ
tv
nCS
SO
SCK
SO
Output data hold time
tHD;SO
SCK
SO
Output low impedance time from tCLZ
SCK clock
SCK
SO
*1) Design guarantee values (not tested before shipment)
100
0
100
0
80
100
80
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Remarks
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
No.A2214-5/14
5 Page 
Pin Functions
Pin Name
I/O
Cin0
I/O
Cin1
I/O
Cin2
I/O
Cin3
I/O
Cin4
I/O
Cin5
I/O
Cin6
I/O
Cin7
I/O
Cin8
I/O
Cin9
I/O
Cin10
I/O
Cin11
I/O
Cin12
I/O
Cin13
I/O
Cin14
I/O
Cin15
I/O
Cref I/O
CrefAdd
I/O
Cdrv
O
INTOUT
O
SCL/SCK
nCS
nRST
SA1
I
I
I
I
SDA/SI
I/O
LC717A10PJ
Pin Functions
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Capacitance sensor input
Reference capacitance input
Reference capacitance input for addition
Output for capacitance sensors drive
VDD
VSS
VDD
Interrupt output
Clock input (I2C)
/ Clock input (SPI)
Interface selection
/ Chip select inverting input (SPI)
External reset signal inverting input
Slave address selection (I2C)
Data input and output (I2C)
/ Data input (SPI)
VSS
VDD
VSS
VDD
VSS
Pin Type
AMP
R
Buffer
Buffer
R
R
Continued to the next page.
No.A2214-11/14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet LC717A10PJ.PDF ] | |
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