Series: -
Type: Resistive
Touch Panel Interface: 4-Wire
Number of Inputs/Keys: 1 TSC
Resolution (Bits): 12 b
Mounting Type: Surface Mount
Evaluation Tools: -
Voltage Reference: -
Packaging: Tube
Data Rate/Sampling Rate (SPS, BPS): -
Operating Temperature: -
Voltage - Supply: 3 V ~ 5.5 V
Manufacturer: IDT, Integrated Device Technology Inc
Data Interface: Parallel
Current - Supply: 5mA
Package / Case: 28-SSOP (0.154", 3.90mm Width)
Supplier Device Package: 28-QSOP
Specifications | Package | QSOP 28 |
| Speed | NA |
| Temperature | I |
| Voltage | 3.3 V |
DescriptionTOUCH SCREEN CONTROL
The MK712RI Touch Screen Controller IC provides all the screen drive, A to D converter and control circuits to easily interface to 4-wire analog resistive touch screens. The IC continually monitors the screen waiting for a touch. In this mode, the supply current is typically 0.5A. When the screen is touched, the IC MK712RI performs analog to digital conversions to determine the location of the touch, stores the X and Y locations in the registers, and issues an interrupt. This process of MK712RI is repeated up to 197 times per second until no further screen touches are detected, at which time the low current mode is resumed.
MK712RI features:
Packaged in 28-pin SSOP (150 mil) or 28-pin SOIC (300 mil)
Industrial (-30°C to +70°C), commercial (0 to +70°C), and automotive (-35°C to +85°C) temperature ranges
Available in Pb (lead) free package
Fully integrated, lowest power solution
Low standby current of 0.5A (typical) at 5.0V
Active current while converting less than 10 mA
Resolves 350 dots/inch on 10.5" display
Maximum speed of 197 points/second
Ratiometric conversion may eliminate screen calibration
Automatically wakes up and goes back to standby
3.3V or 5V supply
12 bit A/D converter
Simplifies the writing of software for touch screens
Extended temperature range available o Capacitors are the only external components required
Touch screen is directly driven - no external transistors are required
Programmable conversion rate
A to D Converter is monotonic
Parallel interfaceParameters: | Technical/Catalog Information | MK712RI |
| Vendor | IDT, Integrated Device Technology Inc |
| Category | Integrated Circuits (ICs) |
| Mounting Type | Surface Mount |
| Package / Case | 28-SSOP |
| Type | Controller |
| Supply Voltage | 3 V ~ 5.5 V |
| Packaging | Tube |
| Operating Temperature | -35°C ~ 85°C |
| Sampling Rate (Per Second) | - |
| Data Interface | Parallel |
| Voltage Supply Source | Single |
| Resolution (Bits) | 12 b |
| Drawing Number | * |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | MK712RI
MK712RI
|
MK712RI Data Sheet
