Microchip HT12-100SAs/12ST25 handleiding
Handleiding
Je bekijkt pagina 7 van 18
7
Parameter
No.
Sym Description Min Typ Max Units
1
1
TCLK
inh
Holding TCLK high to inhibit transmission 0 -
∞
μs
2
2
TCLK↓TIRQ↑
Time between TCLK low and TIRQ high 24
μs
3
TIRQ↑TCLK↑
Time from TIRQ high to first TCLK high 8 - 1E
6
μs
4
TCLK↑TIRQ↓
Time between TCLK high and TIRQ low 3
μs
5
3
,
4
TCLK↑
TCLK high time 13 - 7000
μs
6
3
TCLK↓
TCLK low time 13 - 7000
μs
7
5
,
6
TIRQ-TIRQ Time between continuous transmission without
TCLK
inh
10 - 46 ms
8 TDATA
ava
Time from TDATA available to TIRQ high 7 - -
μs
9 TDATA
change
Time from TCLK low to TDATA change 7 - -
μs
Table 5: SPI Timing Characteristics
1
This parameter will not inhibit an active transmission
2
This parameter is only used if the TCLK is used to inhibit transmission
3
Times greater than 7000μs will cause a watchdog timer reset
4
TDATA available at TCLK high
5
Timing is dependent on total 25-clock cycle
6
The TSHARC-XXsc uses a dynamic sampling routine whereby the sample rate is varied based upon the velocity of the pen movement
General ESD Considerations
Implementation
The TSHARC-12S controller design has internal static protection to guard against static discharge from the touch
screen to the controller. This static protection is only effective once the board is grounded properly. Adequate
static precautions must be taken when connecting the TSHARC controller to the application. In some
applications, it may be necessary to further protect your controller board design from excess transient voltage. If
it is believed that the application will require additional static protection, the appropriate static protection needed to
protect the electronics from transient voltage is up to the customer. Failure to take the necessary precautions
may result in damage to your controller. Microchip Technology Inc. does not warrantee the controller for
static voltage damage.
For additional information about Microchip’s ESD testing procedures, please contact Microchip
Technology Inc.
Email: support@hampshirecompany.com
Telephone: (414) 355-4675
Bekijk gratis de handleiding van Microchip HT12-100SAs/12ST25, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Microchip |
| Model | HT12-100SAs/12ST25 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 5179 MB |
