参数资料
型号: MAX1234ETI+
厂商: Maxim Integrated Products
文件页数: 13/44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
MAX1233/MAX1234
±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
20
______________________________________________________________________________________
In order to read the entire first page of memory, for
example, the host processor must send the
MAX1233/MAX1234 the command 0x8000H. The
MAX1233/MAX1234 then begin clocking out 16-bit data
starting with the X-data register. In order to write to the
second page of memory, the host processor sends the
MAX1233/MAX1234 the command 0x0040H. The suc-
ceeding data is then written in 16-bit words beginning
with the ADC control register. Figures 10a and 10b show
a complete write and read operation, respectively,
between the processor and the MAX1233/MAX1234.
Memory Map
The MAX1233/MAX1234s’ internal memory is divided
into two pages—one for data and one for control, each
of which contains thirty-two 16-bit registers.
Control Registers
Table 3 provides a summary of all registers and bit
locations of the MAX1233/MAX1234.
ADC Control Register
The ADC measures touch position, touch pressure, bat-
tery voltage, auxiliary analog inputs, and temperature.
The ADC control register determines which input is
selected and converted. Tables 4 and 5 show the for-
mat and bit descriptions for the ADC control register.
DIN
DOUT
SCLK
D15
D15 IS READ/WRITE BIT
LOW FOR WRITE
D15–D0 COMMAND WORD
TIMING NOT TO SCALE.
D0
D15
D0
D15–D0 DATA WORD
THREE-
STATE
CS
WRITE OPERATION
THREE-
STATE
Figure 10a. Timing Diagram of Write Operation
SCLK
THREE-STATE
D15 D14
D15–D0 COMMAND
WORD
D0
THREE-STATE
D0
D15
DOUT
DIN
D0
D15
DATA WORD
CS
READ OPERATION
Figure 10b. Timing Diagram of Read Operation
BIT15
BIT14
BIT13 BIT12 BIT11
BIT10
BIT9
BIT8
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
PENSTS
ADSTS
A/D3
A/D2
A/D1
A/D0
RES1
RES0
AVG1
AVG0
CNR1
CNR0
ST2
ST1
ST0
RFV
Table 4. ADC Control Register (Write 0x0040/Read 0x8040)
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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