參數(shù)資料
型號(hào)： BU21023MUV-E2
廠商： Rohm Semiconductor
文件頁(yè)數(shù)： 12/22頁(yè)
文件大小： 0K
描述： IC CTLR TOUCH PANEL 28VQFN
特色產(chǎn)品： Resistive Touchscreen Controller Ics
標(biāo)準(zhǔn)包裝： 1
類型： 電阻
觸摸面板接口： 4，2 線
輸入數(shù)/鍵： 1 TSC
分辨率（位）： 8 b
評(píng)估套件： *
數(shù)據(jù)接口： I²C，串行，SPI?
電源電壓： 1.8V，3V
電流 - 電源： 4mA
工作溫度： -20°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 28-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 28-QFN
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： BU21023MUV-E2DKR
BU21023GUL
BU21023MUV
BU21024FV-M
2/22
Datasheet
TSZ02201-0Y1Y0F300160-1-2
2013 ROHM Co., Ltd. All rights reserved.
07.Oct.2013 Rev.001
www.rohm.com
TSZ22111·15·001
Pin Configuration and Pin Description
【BU21023GUL】
TOP VIEW (BALL SIDE DOWN)
BOTTOM VIEW (BALL SIDE UP)
12345
A
B
C
D
E
T4
PVDD
DVDD
VDD
VSS
XP
AVDD
DVDD_EXT
CLK_EXT
XN
YP
RSTB
T1
T2
YN
SEL_CSB
SO
T3
IFSEL
ECL
EDA
SCL_SCK
SDA_SI
INT
1234
5
E
D
C
B
A
T4
PVDD
DVDD
VDD
VSS
XP
AVDD
DVDD_EXT
CLK_EXT
XN
YP
RSTB
T1
T2
YN
SEL_CSB
SO
T3
IFSEL
ECL
EDA
SCL_SCK
SDA_SI
INT
No.
Pin Name
I/O
Function
Figure
D1
YN
I/O
Screen interface
E
C1
XN
I/O
Screen interface
E
C2
YP
I/O
Screen interface
E
B1
XP
I/O
Screen interface
E
A1
T4
I/O
Test pin
E
A2
PVDD
O
Regulator output (for supply screen voltage)
-
B3
AVDD
O
Regulator output (for supply analog block)
-
A3
DVDD
I/O
Regulator output (for supply digital block) or supply digital voltage
-
B4
DVDD_EXT
I
Digital voltage enable (H=Hi-z , L=DVDD Enable)
E
A4
VDD
-
Supply voltage
-
A5
VSS
-
Ground
-
C3
RSTB
I
H/W reset
E
B5
CLK_EXT
I
Supply external clock for debug
A
C4
T1
I
Test pin
A
C5
T2
I
Test pin
A
D4
T3
I
Test pin
A
D5
IFSEL
I
Interface select pin (L=SPI, H=2-wire serial)
A
D3
SO
O
SPI
Serial data output
2-wire
-
F
E5
INT
O
Interrupt output
C
D2
SEL_CSB
I
SPI
Chip select
2-wire
Slave address select
C
E4
SDA_SI
I/O
SPI
Serial data input
2-wire
Serial data in-out
C
E3
SCL_SCK
I
SPI
Serial clock input
2-wire
Serial clock input
C
E2
EDA
I/O
EEPROM SDA
C
E1
ECL
O
EEPROM SCL
C
1.
Please use
1.0F capacitors between AVDD and DVDD to GND, and leave PVDD terminal open.
2.
If DVDD_EXT=”H“, the DVDD pin can be connected to an external 1.8V power source.
3.
Please pull up the ECL, EDA, and INT pins using 10k ohm resistors as shown in the application diagram at the end of this document.
ECL and EDA pins may be directly connected to GND if an external EEPROM is not being used. Please connect a
0.1F capacitor between T4 and GND.
T1, T2 & T3 pins should be connected to GND.
4.
When using the 2 wire serial interface, please pull up the SCL_SCK, SDA_SI pins via 10k ohms and leave SO unconnected.
5.
Please note that the values of resistors and capacitors mentioned here are only recommended values.
6.
RSTB should be held low until supply voltage VDD has ramped up and has reached a stable level.
7.
The polarity of INT pin is programmable via register 0x30.
8.
Connect CLK_EXT to GND for normal use.
9.
INT terminal is used as input pin in test mode.
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