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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)： | 2/24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
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
functional block diagram
Voltage
Generator
(Charge Pump)
Block
OSC
800 kHz
VREF
Control
Level
Shifter
ESD
ESD
ESD
VCAP1
VCAP2
SIMPWR
MODE
RESET
DATA
CLK
RST
GND
SIMVCC
SIMDATA
SIMCLK
SIMRST
VDD or
SIMVCC
VDD
10 k
20 k
Terminal Functions
TERMINAL
NAME
I/O
DESCRIPTION
NO.
CLK
6
DI
3-V SIM clock signal. This terminal is connected to the SIM interface and works with 3-V logic level.
DATA
5
DI/O
3-V bidirectional data line. This terminal is connected to the SIM interface and works with 3-V logic level.
GND
10
Ground
MODE
3
DI
Programs the SIM supply voltage to SIMVCC = 5 V (MODE = 0) or SIMVCC = 3 V (MODE = 1).
Reset for the TSP9125 SIM supply and interface in case the SIM is removed under operation.
RESET
2
DI
RST
7
DI
3-V SIM reset signal. This terminal is connected to the SIM interface and works with 3-V logic level.
SIMCLK
9
DO
3-V/5-V SIM clock signal. This terminal is connected to the SIM reader contacts.
SIMRST
8
DO
3-V/5-V SIM reset signal. This terminal is connected to the SIM reader contacts.
SIMDATA
11
DI/O
3-V/5-V bidirectional data line. This terminal is connected to the SIM reader contacts.
SIM supply voltage. Can be switched between 5 V
±
10% and 3 V
±
10%. This terminal is connected to the SIM
reader contacts. Connect a 1
μ
F
±
20% capacitor between SIMVCC and GND.
SIMVCC
14
SIMPWR
4
DI
SIM supply enable terminal. SIMPWR = 0 leaves SIMVCC open, SIMPWR = 1 enables SIM supply.
Charge pump capacitor. Connect 220 nF
±
20% capacitor between VCAP1 and VCAP2.
Charge pump capacitor. Connect 220 nF
±
20% capacitor between VCAP1 and VCAP2.
Supply voltage input. Connect a power bypass capacitor of 1
μ
F between VDD and GND. Connect capacitor
physically close to the VDD terminal.
VCAP1
13
VCAP2
12
VDD
1
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| 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 |
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