參數(shù)資料
型號： MAX1234EGI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 消費家電
英文描述： 【15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller
中文描述： SPECIALTY CONSUMER CIRCUIT, QCC28
封裝： 5 X 5 MM, 0.80 MM HEIGHT, QFN-28
文件頁數(shù)： 26/44頁
文件大小： 706K
代理商： MAX1234EGI
M
±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
26
______________________________________________________________________________________
Data Registers
The data results from conversions or keypad scans are
held in the data registers of the MAX1233/MAX1234.
During power-up, all of these data registers with the
exception of the DAC data register default to 0000
H
.
The DAC register defaults to 1000
H
.
Analog Input Data Registers
Table 30
shows the format of the X, Y, Z
1
, Z
2
, BAT1,
BAT2, AUX1, AUX2, TEMP1, and TEMP2 data registers.
The data format for these registers is right justified
beginning with bit 11. Data written through the serial
interface to these registers is not stored.
Keypad Data Registers
Table 31
shows the formatting of the keypad data reg-
isters, while
Tables 32, 33,
and
34
provide individual
register bit descriptions. These registers have the same
format as the keypad mask register. Each bit repre-
sents one key on the keypad.
Table 35
shows a map of
a 16-key keypad. Data written through the serial inter-
face to these registers is not stored.
BIT15
GP7
BIT14
GP6
BIT13
GP5
BIT12
GP4
BIT11
GP3
BIT10
GP2
BIT9
GP1
BIT8
GP0
BIT7
OE7
BIT6
OE6
BIT5
OE5
BIT4
OE4
BIT3
OE3
BIT2
OE2
BIT1
OE1
BIT0
OE0
Table 26. GPIO Control Register
DESCRIPTION
BIT
NAME
1
0
15
14
13
12
11
10
9
8
[7:0]
GP7
GP6
GP5
GP4
GP3
GP2
GP1
GP0
C4 pin becomes GPIO pin 7
C3 pin becomes GPIO pin 6
C2 pin becomes GPIO pin 5
C1 pin becomes GPIO pin 4
R4 pin becomes GPIO pin 3
R3 pin becomes GPIO pin 2
R2 pin becomes GPIO pin 1
R1 pin becomes GPIO pin 0
GPIO pin configured as an output
C4 pin remains keypad column 4
C3 pin remains keypad column 3
C2 pin remains keypad column 2
C1 pin remains keypad column 1
R4 pin remains keypad row 4
R3 pin remains keypad row 3
R2 pin remains keypad row 2
R1 pin remains keypad row 1
GPIO pin configured as an input
[OE7:OE0]
Table 27. GPIO Control Register Descriptions
BIT15
PU7
BIT14
PU6
BIT13
PU5
BIT12
PU4
BIT11
PU3
BIT10
PU2
BIT9
PU1
BIT8
PU0
BIT7
0
BIT6
0
BIT5
0
BIT4
0
BIT3
0
BIT2
0
BIT1
0
BIT0
0
Table 28. GPIO Pullup Disable Register
BIT
NAME
DESCRIPTION
[15:8]
[PU7:PU0]
1: P ul up d sab ed Op en col ector outp ut.
2: P ul up enab ed
[7:0]
0
Reserved
Table 29. GPIO Pullup Disable Register
Descriptions
BIT
15
14
13
12
[11:0]
NAME
CM4
CM3
CM2
CM1
0
DESCRIPTION
Mask interrupt, status register, and pending register data update on all keys in column 4
Mask interrupt, status register, and pending register data update on all keys in column 3
Mask interrupt, status register, and pending register data update on all keys in column 2
Mask interrupt, status register, and pending register data update on all keys in column 1
Reserved
Table 25. Keypad Column Mask Control Register Descriptions
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相關代理商/技術參數(shù)
參數(shù)描述
MAX1234EGI+ 制造商:Maxim Integrated Products 功能描述:TOUCH SCREEN CONTROLLER 28-PIN QFN EP - Rail/Tube
MAX1234EGI-T 功能描述:觸摸屏轉換器和控制器 RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
MAX1234ETI+ 功能描述:觸摸屏轉換器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
MAX1234ETI+T 功能描述:觸摸屏轉換器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
MAX1234EVC16 功能描述:數(shù)據(jù)轉換 IC 開發(fā)工具 MAX1233/34 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
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