- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385948 > TPS9125PW (Texas Instruments, Inc.) 5 V/3 V SIM SUPPLY AND LEVEL SHIFTERS PDF資料下載
參數(shù)資料
| 型號： | TPS9125PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 5 V/3 V SIM SUPPLY AND LEVEL SHIFTERS |
| 中文描述： | 5伏/ 3伏SIM卡供應及電平轉(zhuǎn)換器 |
| 文件頁數(shù)： | 17/24頁 |
| 文件大小： | 338K |
| 代理商： | TPS9125PW |
TPS9125
5 V/3 V SIMSUPPLY AND LEVEL SHIFTERS
SLVS244A – SEPTEMBER 1999 – REVISED NOVEMBER 1999
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
enabling and disabling the TSP9125
The TSP9125 meets the deactivation requirements according to GSM 11.11 paragraph 4.3.2, and
ISO/IEC 7816-3 paragraph 5.4. These specifications define that the I/O line of the SIM card must be pulled low
before the supply voltage of the SIM card is deactivated. In 3-V and 5-V mode, the SIMDATA terminal of the
TSP9125 is pulled low before SIMVCC is disabled.
During normal operation mode (3-V or 5-V) the SIMPWR and RESET inputs must be high. If one of these
terminals is switched low, the supply of the SIM card is deactivated. In Figure 15 and Figure 16, the SIMPWR
terminal is pulled low. The I/O line of the SIM card (SIMDATA) is pulled low immediately although DATA is high,
whereas the supply voltage on SIMVCC decreases to approximately 2 V quickly and then needs about 100 ms
to reach 0 V. Thus, when the operating mode is changed from the 5-V tsupply to the 3-V supply, the voltage on
SIMVCC is decreased to a level below the supply voltage V
DD
to prevent reverse current flow.
In Figure 15 to Figure 17, the RESET terminal is pulled low externally. Also in this situation, SIMDATA goes low
immediately although the input signal at DATA is high.
SIMPWR
SIMDATA
SIMVCC
0 V
5 V
R3
R1
Figure 15. Powerdown Characteristic in 5-V mode vs Time: 50
μ
s/div
相關PDF資料 |
PDF描述 |
|---|---|
| TPV375 | 14 pin DIP, 5.0 Volt, HCMOS/TTL, Clock Oscillator |
| TPV376 | 14 pin DIP, 5.0 Volt, HCMOS/TTL, Clock Oscillator |
| TPV385 | 14 pin DIP, 5.0 Volt, HCMOS/TTL, Clock Oscillator |
| TPV387 | 14 pin DIP, 5.0 Volt, HCMOS/TTL, Clock Oscillator |
| TPV394 | NPN RF POWER TRANSISTOR |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS9125PWR | 制造商:Rochester Electronics LLC 功能描述:SIM-CARD INTERFACE - Bulk 制造商:Texas Instruments 功能描述: |
| TPS92 | 制造商:Vishay Sprague 功能描述:SEMICONDUCTOR TRANSISTOR |
| TPS92001 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:GENERAL PURPOSE LED LIGHTING PWM CONTROLLER |
| TPS92001D | 功能描述:LED照明驅(qū)動器 Gen Pur LED Lighting PWM Controller RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| TPS92001DGK | 功能描述:LED照明驅(qū)動器 Gen Pur LED Lighting PWM Controller RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
發(fā)布緊急采購，3分鐘左右您將得到回復。