- 您现在的位置：买卖IC网 > PDF目录98302 > TSC2301IZQZR (TEXAS INSTRUMENTS INC) SPECIALTY CONSUMER CIRCUIT, PBGA120 PDF资料下载
参数资料
| 型号： | TSC2301IZQZR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA120 |
| 封装： | GREEN, PLASTIC, VFBGA-120 |
| 文件页数： | 62/95页 |
| 文件大小： | 1322K |
| 代理商： | TSC2301IZQZR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页当前第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页
www.ti.com
OPERATION - KEYPAD INTERFACE
Issue Interrupt
KBIRQ
Start Clock
Store Keypad scan
results in KPData
Register
Keypad
Touch
Turn off clock
Reset KBIRQ and Scan
Trigger
Done
Scan and
debounce keys
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
The TSC2301 contains a keypad interface that is suitable for use with matrix keypads up to 4 x 4 keys. A control
register, the keypad control register, is used to set the scan rate for the keypad and de-bounce times. There is
also a keypad mask register which allows certain keys to be masked from being read, or from causing the
TSC2301 to detect a key-press on selected keys. The results of keypad scans are placed in the keypad data
register.
When a column line (keypad input) is tied to logic high, pressing on all four keys connected to that column is
sensed. For example, if C1 is tied high, pressing on keys 0, 4, 8, and 12 is detected in the keypad data register.
This capability is used to extend the keypad interface beyond 4 x 4 keypads.
When a key-press is detected by the TSC2301, it automatically scans the keypad and de-bounces the key-press.
It then drives KBIRQ low. All keys pressed at the time of the scan are then reflected in the keypad data register.
This mode is shown in Figure 73.
Keypad Scan KBRIQ Initiated
Figure 73. Keypad Scan Initiated by Keypress
65
相关PDF资料 |
PDF描述 |
|---|---|
| TSC2301IZQZ | SPECIALTY CONSUMER CIRCUIT, PBGA120 |
| TSC2301IPAGG4 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TSC2301IPAGRG4 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TSC2302IRGZRG4 | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| TSDC4872IJT | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TSC2301PAG | 制造商:TI 制造商全称:Texas Instruments 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
| TSC2301PAGR | 制造商:TI 制造商全称:Texas Instruments 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
| TSC2302 | 制造商:BB 制造商全称:BB 功能描述:PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
| TSC2302IRGZ | 功能描述:触摸屏转换器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec 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 |
| TSC2302IRGZG4 | 功能描述:触摸屏转换器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec 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 |
发布紧急采购，3分钟左右您将得到回复。