BU21021GUL-E2, Resistive Touch Screen Controller, 12 bit, 50-Pin VCSP50L2

  • RS Stock No. 185-1341
  • Mfr. Part No. BU21021GUL-E2
  • Brand ROHM
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

BU21021GUL is a resistive touch screen controller,which is capable of detecting 2 points touch with a legacy 4-wire resistive touch screen. BU21021GUL is capable of detecting X/Y coordinates, touch pressure in1 point detection mode, and a pair of X/Y coordinates in2 point detection mode. It is also capable of recognizing multiple finger gestures from coordinate data variation and notifying to host with gesture detection flags respectively. BU21021GUL employs embedded CPU for noise filtering, coordinate calculation, gesture detection and other signal processing required on a chip.

Legacy 4-wire resistive touch screen is applicable
1 point / 2 points touch detection
On chip coordinate generation
Multiple gesture detections
3V single power supply
Higher coordinate resolution with 12-bit SAR A/D converter
On chip clock generator
Selectable HOST I/F(IFSEL pin) 4-wire SPI / 2-wire serial bus

Attribute Value
Resolution 12 bit
Sensing Technology Resistive
Mounting Type Surface Mount
Package Type VCSP50L2
Pin Count 50
Typical Operating Supply Voltage 3 V
Dimensions 2.7 x 2.65 x 0.55mm
Length 2.7mm
Width 2.65mm
Height 0.55mm
Maximum Operating Temperature +85 °C
Minimum Operating Temperature -20 °C
20 In stock for delivery within 5 working days
Price Each (In a Pack of 2)
£ 2.03
(exc. VAT)
£ 2.44
(inc. VAT)
Per unit
Per Pack*
2 - 8
10 - 38
40 - 98
100 +
*price indicative
Not available for guaranteed pre 9am/10am delivery
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