SHIFTERS. TPS9125 Datasheet

TPS9125 Datasheet PDF


Part

TPS9125

Description

5V/3V SIM SUPPLY AND LEVEL SHIFTERS

Manufacture

etcTI

Page 24 Pages
Datasheet
Download TPS9125 Datasheet


TPS9125 Datasheet
TPS9125
5 V/3 V SIM SUPPLY AND LEVEL SHIFTERS
D Integrated SIM Supply and Level Shifters
D Selectable 5-V or 3-V SIM Supply Voltage
D 3-V to 5-V Level Shifters, Bidirectional for
SIM Data Line
D 10 kV ESD Protection (HBM) on SIMDATA,
SIMRST, and SIMCLK Terminal
D 14 Terminal TSSOP
D Minimum Supply Voltage 2.7 V
D Integrated PullUp Resistor for DATA and
SIMDATA
D Thin Shrink, Small Outline, Left-Hand Tape
and Reel Package
SLVS244A – SEPTEMBER 1999 – REVISED NOVEMBER 1999
PW PACKAGE
(TOP VIEW)
VDD
RESET
MODE
SIMPWR
DATA
CLK
RST
1
2
3
4
5
6
7
14 SIMVCC
13 VCAP1
12 VCAP2
11 SIMDATA
10 GND
9 SIMCLK
8 SIMRST
description
The TPS9125 SIM supply and level shifter integrates a programmable 3-V or 5-V SIM supply, conformable to
the (GSM) test specification 11.10, together with either a 3-V or 5-V level shifter, conformable to the GSM
specification 11.11 and 11.12.
A charge pump, utilizing two external capacitors, is configured as voltage doubler to generate a 5-V supply rail
from VDD. Dependent on the SIM card used, a control signal coming from the SIM card controller is applied on
the MODE terminal to switch between a 3-V or 5-V supply on the SIMVCC output terminal.
A 3-V/5-V bidirectional level shifter translates the 3-V compatible logic signal on DATA terminal into a 5-V
compatible logic signal SIMDATA terminal, and vice versa. RST and CLK are unidirectional level shifters,
providing a 5-V SIMRST and SIMCLK signal from the microcontroller to the SIM card.
The SIM supply is operating provided SIMPWR = 1 and VDD is sufficient (> 2.7 V). Under this condition, SIMVCC
voltage is generated by the SIM supply charge pump.
A RESET terminal is provided for security reasons to switch off the SIM supply and interface if the SIM card is
disconnected or removed by accident.
The TSP9125 is packaged in TI’s thin shrink small-outline package (PW).
AVAILABLE OPTIONS
TA
PACKAGE
(PW)
– 30°C to 85°C
TSP9125PWR†
Suffix R stands for left-handed tape and reel.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
TI is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1999, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1

TPS9125 Datasheet
TPS9125
5 V/3 V SIM SUPPLY AND LEVEL SHIFTERS
SLVS244A – SEPTEMBER 1999 – REVISED NOVEMBER 1999
functional block diagram
VDD
VCAP1
VCAP2
SIMPWR
MODE
RESET
DATA
CLK
RST
20 k
Voltage
Generator
(Charge Pump)
Control
Block
OSC
800 kHz
VREF
VDD or
SIMVCC
Level
Shifter
10 k
ESD
ESD
ESD
GND
SIMVCC
SIMDATA
SIMCLK
SIMRST
TERMINAL
NAME NO.
CLK 6
DATA
5
GND
10
MODE
3
RESET
2
RST
7
SIMCLK
9
SIMRST
8
SIMDATA 11
SIMVCC
14
SIMPWR
VCAP1
VCAP2
4
13
12
VDD
1
Terminal Functions
I/O DESCRIPTION
DI
DI/O
DI
DI
DI
DO
DO
DI/O
DI
3-V SIM clock signal. This terminal is connected to the SIM interface and works with 3-V logic level.
3-V bidirectional data line. This terminal is connected to the SIM interface and works with 3-V logic level.
Ground
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.
3-V SIM reset signal. This terminal is connected to the SIM interface and works with 3-V logic level.
3-V/5-V SIM clock signal. This terminal is connected to the SIM reader contacts.
3-V/5-V SIM reset signal. This terminal is connected to the SIM reader contacts.
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 µF ± 20% capacitor between SIMVCC and GND.
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 µF between VDD and GND. Connect capacitor
physically close to the VDD terminal.
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Features Datasheet pdf TPS9125 5 V/3 V SIM SUPPLY AND LEVEL SHI FTERS D Integrated SIM Supply and Leve l Shifters D Selectable 5-V or 3-V SIM Supply Voltage D 3-V to 5-V Level Shift ers, Bidirectional for SIM Data Line D 10 kV ESD Protection (HBM) on SIMDATA, SIMRST, and SIMCLK Terminal D 14 Termin al TSSOP D Minimum Supply Voltage 2.7 V D Integrated PullUp Resistor for DATA and SIMDATA D Thin Shrink, Small Outlin e, Left-Hand Tape and Reel Package SLV S244A – SEPTEMBER 1999 – REVISED NO VEMBER 1999 PW PACKAGE (TOP VIEW) VDD RESET MODE SIMPWR DATA CLK RST 1 2 3 4 5 6 7 14 SIMVCC 13 VCAP1 12 VCAP2 11 SIMDATA 10 GND 9 SIMCLK 8 SIMRST desc ription The TPS9125 SIM supply and lev el shifter integrates a programmable 3- V or 5-V SIM supply, conformable to the (GSM) test specification 11.10, togeth er with either a 3-V or 5-V level shift er, conformable to the GSM specificatio n 11.11 and 11.12. A charge pump, utili zing two external capacitors, is config ured as voltage doubler to generate a 5-V supply rail from VDD. Dep.
Keywords TPS9125, datasheet, pdf, etcTI, 5V/3V, SIM, SUPPLY, AND, LEVEL, SHIFTERS, PS9125, S9125, 9125, TPS912, TPS91, TPS9, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute, Equivalent




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)