参数资料
| 型号： | MAX1234ETI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/44页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR TOUCH 28-TQFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 电阻 |
| 触摸面板接口： | 4 线 |
| 输入数/键： | 1，4 x 4 小键盘 |
| 分辨率（位）： | 8，10，12 b |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 数据速率/采样率 (SPS，BPS)： | 50k |
| 电压基准： | 内部 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 管件 |
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MAX1233/MAX1234
±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 0000H.
The DAC register defaults to 1000H.
Analog Input Data Registers
Table 30 shows the format of the X, Y, Z1, Z2, 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 regis-
ters, while Tables 32, 33, and 34 provide individual reg-
ister 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
BIT14
BIT13
BIT12
BIT11
BIT10
BIT9
BIT8
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
GP7
GP6
GP5
GP4
GP3
GP2
GP1
GP0
OE7
OE6
OE5
OE4
OE3
OE2
OE1
OE0
Table 26. GPIO Control Register (Write 0x004F/Read 0x804F)
DESCRIPTION
BIT
NAME
10
15
GP7
C4 pin becomes GPIO pin 7
C4 pin remains keypad column 4
14
GP6
C3 pin becomes GPIO pin 6
C3 pin remains keypad column 3
13
GP5
C2 pin becomes GPIO pin 5
C2 pin remains keypad column 2
12
GP4
C1 pin becomes GPIO pin 4
C1 pin remains keypad column 1
11
GP3
R4 pin becomes GPIO pin 3
R4 pin remains keypad row 4
10
GP2
R3 pin becomes GPIO pin 2
R3 pin remains keypad row 3
9
GP1
R2 pin becomes GPIO pin 1
R2 pin remains keypad row 2
8
GP0
R1 pin becomes GPIO pin 0
R1 pin remains keypad row 1
[7:0]
[OE7:OE0]
GPIO pin configured as an output
GPIO pin configured as an input
Table 27. GPIO Control Register Bit Descriptions (Write 0x004F/Read 0x804F)
BIT15
BIT14
BIT13
BIT12
BIT11
BIT10
BIT9
BIT8
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
PU7
PU6
PU5
PU4
PU3
PU2
PU1
PU0
0000
Table 28.GPIO Pullup Disable Register (Write 0x004E/Read 0x804E)
BIT
NAME
DESCRIPTION
[15:8]
[PU7:PU0]
1: Pullup disabled. Open collector output.
0: Pullup enabled.
[7:0]
0
Reserved: always write as zero.
Table 29. GPIO Pullup Disable Register
Descriptions
BIT
NAME
DESCRIPTION
15
CM4
Mask interrupt, status register, and pending register data update on all keys in column 4
14
CM3
Mask interrupt, status register, and pending register data update on all keys in column 3
13
CM2
Mask interrupt, status register, and pending register data update on all keys in column 2
12
CM1
Mask interrupt, status register, and pending register data update on all keys in column 1
[11:0]
0
Reserved
Table 25. Keypad Column Mask Register Bit Descriptions (Write 0x0051/Read 0x8051)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1234ETI+ | 功能描述:触摸屏转换器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| MAX1234ETI+T | 功能描述:触摸屏转换器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| MAX1234EVC16 | 功能描述:数据转换 IC 开发工具 MAX1233/34 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1234EVKIT | 制造商:Maxim Integrated Products 功能描述:+15KV ESD-PROTECTED TOUCH-SCREEN CO - Rail/Tube |
| MAX1236EUA | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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