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參數(shù)資料
型號(hào)： TSC2008IYZGR
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, BGA12
封裝： 2 X 1.50 MM, GREEN, DSBGA-12
文件頁(yè)數(shù)： 11/40頁(yè)
文件大小： 1028K
代理商： TSC2008IYZGR
DIGITAL INTERFACE
www.ti.com.......................................................................................................................................................... SBAS406B – JUNE 2008 – REVISED MARCH 2009
The TSC2008 communicates through a standard SPI bus. The SPI allows full-duplex, synchronous, serial
communication between a host processor (the master) and peripheral devices (slaves). The SPI master
generates the synchronizing clock and initiates transmissions. The SPI slave devices depend on a master to start
and synchronize transmissions.
A transmission begins when initiated by a master SPI. The byte from the master SPI begins shifting in on the
slave SDI (MOSI—master out, slave in) pin under the control of the master serial clock. As the byte shifts in on
the SDI (MOSI) pin, a byte shifts out on the SDO (MISO—master in, slave out) pin to the master shift register.
The idle state of the TSC2008 serial clock is logic low, which corresponds to a clock polarity setting of 0 (typical
microprocessor SPI control bit CPOL = 0). The TSC2008 interface is designed so that with a clock phase bit
setting of 0 (typical microprocessor SPI control bit CPHA = 0), the master begins driving its MOSI pin and the
slave begins driving its MISO pin half an SCLK before the first serial clock edge. The CS (SS, slave select) pin
can remain low between transmissions.
Table 1. Standard SPI Signal Names vs Common Serial Interface Signal Names
SPI SIGNAL NAMES
COMMON SERIAL INTERFACE NAMES
SS (Slave Select)
CS (Chip Select)
MISO (Master In Slave Out)
SDO (Serial Data Out)
MOSI (Master Out Slave In)
SDI (Serial Data In)
As a comparison to the popular TSC2046 timing characteristics, a few differences between the interfaces are
worth notice:
1. Unlike the TSC2046, there is not a 15 SCLK cycle for the TSC2008.
2. There is an adjusted SDO timing that allows an 8-bit, back-to-back cycle.
3. The TSC2008 uses an internal conversion clock; therefore, the SPI serial clock (SCLK) can only affect the
acquiring period and I/O transfer.
4. The TSC2008 uses an internal clock to perform the conversion. PENIRQ rises when the conversion is
complete. If the host issues an SCLK before the conversion is complete, PENIRQ also rises, but the
conversion result is invalid.
5. If a new command is issued before a conversion is complete (indicated by EOC), then the conversion is
aborted.
6. Releasing the SPI bus (by raising CS) during the conversion is OK, but releasing the SPI during the I/O
transfer (for example, read result) aborts the data transfer.
Copyright 2008–2009, Texas Instruments Incorporated
19
Product Folder Link(s): TSC2008
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TSC2008IYZGT 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Nano-Pwr Touch Screen Controller 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
TSC2008-Q1 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER with SPIa?￠
TSC2008RGVR 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER with SPI?
TSC2008RGVT 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER with SPI⑩
TSC2008TRGVRQ1 功能描述:觸摸屏轉(zhuǎn)換器和控制器 AC Nano-Pwr Touch Screen Controller 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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