參數(shù)資料
型號(hào)： MAX1233-MAX1234
廠商： Maxim Integrated Products, Inc.
英文描述： 【15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller
中文描述： 【15kV ESD保護(hù)觸摸屏控制器包括DAC和鍵盤控制器
文件頁(yè)數(shù)： 24/44頁(yè)
文件大?。?/td> 706K
代理商： MAX1233-MAX1234
M
±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
24
______________________________________________________________________________________
KEYSTS1
KEYSTS0
READ FUNCTION
WRITE FUNCTION
0
0
No button press detected;
scan or debounce in progress
Scans keypad once and waits to detect a button press. Upon
detection, issues an interrupt and waits for the host
’
s instruction
before scanning.
1
0
Button press detected;
scan or debounce in progress
Stops any ongoing scan and waits to detect a button press. Upon
detection, issues an interrupt and scans the keypad.
0
1
No button press detected;
data available
Stops any ongoing scan and waits to detect a button press. Upon
detection, issues an interrupt and waits for the host
’
s instruction
before scanning.
1
1
Button press detected;
data available
Stops any ongoing scan and powers down the button press
detection circuit. No button presses are detected in this mode.
Table 19. KEYSTS1/KEYSTS0 Functions
DBN2
0
0
0
0
1
1
1
1
DBN1
0
0
1
1
0
0
1
1
DBN0
0
1
0
1
0
1
0
1
FUNCTION (ms)
Debounce time: 2
Debounce time: 10
Debounce time: 20
Debounce time: 50
Debounce time: 60
Debounce time: 80
Debounce time: 100
Debounce time: 120
Table 20. Keypad Debounce Time Control
BIT
NAME
KEYSTS1
KEYSTS0
DBN2
DBN1
DBN0
HLD2
HLD1
HLD0
0
DESCRIPTION
15 (MSB)
14
13
12
11
10
9
8
[7:0]
Read: keypad interrupt status; Write: set interrupt initiated keypad scans
Read: keypad scan status; Write: stop keypad scan
Keypad debounce time control
Keypad debounce time control
Keypad debounce time control
Keypad hold time control
Keypad hold time control
Keypad hold time control
Reserved
Table 18. Keypad Control Register Description
BIT15
KEYSTS1
BIT14
KEYSTS0
BIT13
DBN2
BIT12
DBN1
BIT11
DBN0
BIT10
HLD2
BIT9
HLD
BIT8
HLD
BIT7
0
BIT6
0
BIT5
0
BIT4
0
BIT3
0
BIT2
0
BIT1
0
BIT0
0
Table 17. Keypad Control Register
相關(guān)PDF資料
PDF描述
MAX1233 【15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller
MAX1233EGI 【15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller
MAX1234EGI 【15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller
MAX1239 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
MAX1239LEEE 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1234EGI 功能描述:觸摸屏轉(zhuǎn)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
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(zhuǎn)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(zhuǎn)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(zhuǎn)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
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