19-1847; Rev 3; 5/09
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
The MAX3370/MAX3371 logic-level translators are ideal
for applications interfacing low-voltage devices to other
logic levels. Externally applied voltages set the logic
levels of the MAX3370/MAX3371. The devices accept
VCC from +2.5V to +5.5V and VL from +1.6V to +5.5V,
allowing data transfer between low-voltage ASICs and
higher voltage devices. The MAX3371 features a shutdown mode that reduces supply current to < 1µA and
puts the I/O pins in a high-impedance state.
The MAX3370/MAX3371 are bidirectional level shifters,
allowing data transfer from the VCC side to the VL side
and from the VL side to the VCC side. Both devices
operate at speeds up to 2Mbps with an active driver
and up to 500kbps with an open-drain driver.
The MAX3370/MAX3371 are available in space-saving
µDFN (1mm x 1.5mm) and SC70 packages.
________________________Applications
Features
♦ Allow Bidirectional Level Translation
♦ Miniature µDFN (1mm x 1.5mm) and SC70
Packages
♦ Operational Down to 1.6V
♦ Low Quiescent Current (< 100µA)
♦ Ultra-Low (< 1µA) Shutdown Supply Current
(MAX3371)
♦ Three-State Outputs in Shutdown (MAX3371)
♦ 2Mbps (10pF Load) Push-Pull Driving
♦ 1Mbps (50pF Load) Push-Pull Driving
♦ 500kbps (30pF Load) Open-Drain Driving
Ordering Information
PART*
SHDN
TOP MARK
NO
ABV
6 μDFN
NO
KX
6 μDFN
YES
KY
6 SC70
YES
AAO
PIN-PACKAGE
Cell Phone Cradles
MAX3370EXK+T
5 SC70
Cell Phone Hands-Free Kits
MAX3370ELT+T
Portable POS Systems
MAX3371ELT+T
MAX3371EXT+T
Portable Communication Devices
Smart Card Readers
SPI™, MICROWIRE™, and I2C Level Translation
*All devices are specified over the -40°C to +85°C operating
temperature range.
+Denotes lead(Pb)-free/RoHS-compliant package.
Low-Voltage ASIC Level Translation
Pin Configurations
RS-232-Compatible Translation
SPI is a trademark of Motorola, Inc.
TOP VIEW
MICROWIRE is a trademark of National Semiconductor Corp.
VL 1
Typical Operating Circuit
+1.8V
+3.3V
1.8V
SYSTEM
CONTROLLER
SHDN*
GND
*MAX3371 ONLY
I/O VL
I/O VCC
5 SC70
GND
VL 1
MAX3370
I/O VL 3
6
VCC
5
N.C.
4
I/O VCC
6 μDFN
(1mm x 1.5mm)
3.3V SYSTEM
I/O VCC
VL 1
GND 2
4
VL 1
6
VCC
5
SHDN
GND 2
4
I/O VCC
I/O VL 3
6
VCC
5
SHDN
4
I/O VCC
DATA
GND
GND 2
MAX3371
I/O VL 3
6 SC70
†M.
VCC
MAX3370
I/O VL 3
VCC
VL
MAX3370
MAX3371
DATA
GND 2
5
MAX3371
6 μDFN
(1mm x 1.5mm)
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX3370/MAX3371†
General Description
MAX3370/MAX3371
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
ABSOLUTE MAXIMUM RATINGS
VCC to GND ..............................................................-0.3V to +7V
SHDN to GND ...............................................-0.3V to (VL + 0.3V)
I/O VL to GND................................................-0.3V to (VL + 0.3V)
VL, I/O VCC to GND ...................................-0.3V to (VCC + 0.3V)
Short-Circuit Duration: I/O VL, I/O VCC to GND..........Continuous
Continuous Power Dissipation (TA = +70°C)
SC70 (derate 3.1mW/°C above +70°C) .......................245mW
6-Pin µDFN (derate 2.1mW/°C above +70°C) ..............168mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = +2.5V to +5.5V, VL = +1.6V to +5.5V (Note 1), GND = 0; I/O VL, I/O VCC unconnected; TA = -40°C to +85°C, unless otherwise
noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
5.5
V
POWER SUPPLIES
VL Supply Range
VCC Supply Range
Supply Current from VCC
Supply Current from VL
VL
(Note 1)
VCC
1.6
5.5
V
I QVCC
2.5
70
100
μA
I QVL
5
100
μA
VCC Shutdown Supply Current
SHDN = GND, TA = +25°C, MAX3371
0.03
1
μA
VL Shutdown Supply Current
SHDN = GND, TA = +25°C, MAX3371
0.03
1
μA
Three-State Output Leakage
Current
I/O VL, I/O VCC; SHDN = GND, TA = +25°C,
MAX3371
0.02
1
μA
VL - 0.2
V
LOGIC LEVEL THRESHOLDS
I/O VL Input-Voltage High
Threshold
VIHL
I/O VL Input-Voltage Low
Threshold
VILL
I/O VCC Input-Voltage High
Threshold
VIHC
I/O VCC Input-Voltage Low
Threshold
VILC
I/O VL Output-Voltage High
VOHL
I/O VL sink current = 20μA,
I/O VCC VCC - 0.4V (Note 3)
I/O VL Output-Voltage Low
VOLL
I/O VL sink current = 1mA, I/O VCC 0.2V
(Note 3)
I/O VCC Output-Voltage High
VOHC
I/O VCC source current = 20μA,
I/O VL VL - 0.2V (Note 3)
I/O VCC Output-Voltage Low
VOLC
I/O VCC sink current = 1mA,
I/O VL 0.15V (Note 3)
SHDN Input-Voltage High
VIH-SHDN
SHDN Input-Voltage Low
VIL-SHDN
2
0.15
V
VCC - 0.4
V
0.2
V
2/3
VL
V
0.4
2/3
VCC
V
0.4
2/3
VL
V
V
VL +1.8V
0.4
VL +1.6V
0.2
_______________________________________________________________________________________
V
V
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
(VCC = +2.5V to +5.5V, VL = +1.6V to +5.5V (Note 1), GND = 0; I/O VL, I/O VCC unconnected; TA = -40°C to +85°C, unless otherwise
noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TIMING CHARACTERISTICS (RLOAD = 1M, VCC = +2.5V, VL = +1.6V, I/O test signal rail-to-rail, unless otherwise noted, Figure 1) (Note 3)
I/O VCC Rise Time
(Note 4)
tRVCC
I/O VCC Fall Time
(Note 4)
tFVCC
I/O VL Rise Time
(Note 4)
tRVL
I/O VL Fall Time
(Note 4)
tFVL
HIGH-to-LOW Transition
Propagation Delay
(Driving I/O VL)
LOW-to-HIGH Transition
Propagation Delay
(Driving I/O VL)
HIGH-to-LOW Transition
Propagation Delay
(Driving I/O VCC)
LOW-to-HIGH Transition
Propagation Delay
(Driving I/O VCC)
HIGH-to-LOW Transition
Propagation Delay
Device-to-Device Skew
(Driving I/O VL)
t PD-VCC-HL
t PD-VCC-LH
t PD-VL-HL
t PD-VL-LH
CLOAD = 10pF, data rate = 2Mbps (Note 5)
100
CLOAD = 50pF, data rate = 1Mbps
200
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
400
CLOAD = 10pF, data rate = 2Mbps (Note 5)
50
CLOAD = 50pF, data rate = 1Mbps
200
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
400
CLOAD = 10pF, data rate = 2Mbps (Note 5)
100
CLOAD = 50pF, data rate = 1Mbps
200
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
400
CLOAD = 10pF, data rate = 2Mbps (Note 5)
50
CLOAD = 50pF, data rate = 1Mbps
200
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
400
CLOAD = 10pF, data rate = 2Mbps (Note 5)
50
CLOAD = 50pF, data rate = 1Mbps
200
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
400
CLOAD = 10pF, data rate = 2Mbps (Note 5)
200
CLOAD = 50pF, data rate = 1Mbps
400
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
800
CLOAD = 10pF, data rate = 2Mbps (Note 5)
50
CLOAD = 50pF, data rate = 1Mbps
200
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
400
CLOAD = 10pF, data rate = 2Mbps (Note 5)
200
CLOAD = 50pF, data rate = 1Mbps
400
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
800
CLOAD = 10pF, data rate = 2Mbps (Note 3)
2
CLOAD = 50pF, data rate = 1Mbps
4
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
5
ns
ns
ns
ns
ns
ns
ns
ns
ns
_______________________________________________________________________________________
3
MAX3370/MAX3371
ELECTRICAL CHARACTERISTICS (continued)
MAX3370/MAX3371
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +2.5V to +5.5V, VL = +1.6V to +5.5V (Note 1), GND = 0; I/O VL, I/O VCC unconnected; TA = -40°C to +85°C, unless otherwise
noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
LOW-to-HIGH Transition
Propagation Delay
Device-to-Device Skew
(Driving I/O VL)
HIGH-to-LOW Transition
Propagation Delay
Device-to-Device Skew
(Driving I/O VCC)
LOW-to-HIGH Transition
Propagation Delay
Device-to-Device Skew
(Driving I/O VCC)
Maximum Data Rate
SYMBOL
CONDITIONS
MIN
TYP
CLOAD = 10pF, data rate = 2Mbps (Note 3)
5
CLOAD = 50pF, data rate = 1Mbps
8
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
80
CLOAD = 10pF, data rate = 2Mbps (Note 3)
2
CLOAD = 50pF, data rate = 1Mbps
4
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
5
CLOAD = 10pF, data rate = 2Mbps (Note 3)
7
CLOAD = 50pF, data rate = 1Mbps
8
CLOAD = 30pF, data rate = 500kbps,
open-drain drive
50
CLOAD = 10pF (Note 5)
2
3
CLOAD = 50pF
1
2
0.5
1
CLOAD = 30pF, open-drain drive
MAX
UNITS
ns
ns
ns
Mbps
Note 1: VL must always be less than or equal to VCC.
Note 2: All units are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design
and not production tested.
Note 3: Tested only at worst case: VCC = +2.5V, VL = +1.6V.
Note 4: 10% to 90%.
Note 5: Guaranteed by correlation to CLOAD = 50pF.
4
_______________________________________________________________________________________
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
+2.5V
VL
+1.6V
+2.5V
VCC
VL
MAX3370
MAX3371
DATA
I/O VL I/O VCC
GND
DATA
RLOAD
CLOAD
I/O VL
tRISE, tFALL ≤ 10ns
CLOAD
MAX3370/MAX3371
+1.6V
VCC
MAX3370
MAX3371
I/O VL I/O VCC
GND
RLOAD
I/O VCC
tRISE, tFALL ≤ 10ns
tPD-VCC-LH
tPD-VCC-HL
tPD-VL-LH
I/O VCC
tPD-VL-HL
I/O VL
tRVCC
tFVCC
tRVL
Figure 1b. Rail-to-Rail Driving I/O VCC
Figure 1a. Rail-to-Rail Driving I/O VL
+1.6V
+2.5V
VL
+1.6V
VCC
MAX3370
MAX3371
I/O VL I/O VCC
GND
tFVL
+2.5V
VL
DATA
DATA
RLOAD
I/O VL
tRISE, tFALL ≤ 10ns
CLOAD
CLOAD
VCC
MAX3370
MAX3371
I/O VL I/O VCC
GND
RLOAD
I/O VCC
tRISE, tFALL ≤ 10ns
tPD-VCC-LH
tPD-VL-LH
tPD-VCC-HL
I/O VCC
tPD-VL-HL
I/O VL
tRVCC
Figure 1c. Open-Drain Driving I/O VL
tFVCC
tRVL
tFVL
Figure 1d. Open-Drain Driving I/O VCC
_______________________________________________________________________________________
5
Typical Operating Characteristics
(Driving I/O VL rail-to-rail, RL = 1MΩ, TA = +25°C, unless otherwise noted.)
RATE = 500kbps, CLOAD = 30pF,
OPEN-DRAIN DRIVE
100
VL = 1.8V
VL = 1.8V
500
RATE = 1Mbps, CLOAD = 50pF
RATE = 2Mbps, CLOAD = 10pF
400
96
IVCC (μA)
IVL (μA)
98
600
MAX3370-01
102
MAX3370-02
VCC SUPPLY CURRENT
vs. POWER-SUPPLY VOLTAGE
VL SUPPLY CURRENT
vs. POWER-SUPPLY VOLTAGE
94
92
300
200
RATE = 2Mbps, CLOAD = 10pF
90
100
88
0
3.0
3.5
4.0
4.5
5.0
2.5
5.5
3.0
3.5
4.0
4.5
5.0
VCC (V)
VCC (V)
VL SUPPLY CURRENT
vs. TEMPERATURE
VCC SUPPLY CURRENT
vs. TEMPERATURE
98
VCC = 2.5V
97
450
MAX3370-03
99
5.5
400
MAX3370-04
2.5
VCC = 5.0V
350
96
VCC = 3.3V
95
94
IVCC (μA)
IVL (μA)
RATE = 500kbps, CLOAD = 30pF,
OPEN-DRAIN DRIVE
RATE = 1Mbps, CLOAD = 50pF
86
VL = 1.8V, RATE = 500kbps,
CLOAD = 30pF,
OPEN-DRAIN DRIVE
93
92
VCC = 5.0V
VL = 1.8V, RATE = 500kbps,
CLOAD = 30pF,
OPEN-DRAIN DRIVE
300
250
VCC = 3.3V
200
91
150
90
VCC = 2.5V
100
89
-15
10
35
60
35
60
VCC SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX3370-05
VL = 1.8V
VCC = 3.3V
680
RATE = 2Mbps, CLOAD = 10pF
RATE = 1Mbps, CLOAD = 50pF
580
IVCC (μA)
100
95
90
RATE = 500kbps, CLOAD = 30pF,
OPEN-DRAIN DRIVE
RATE = 2Mbps, CLOAD = 10pF
RATE = 1Mbps, CLOAD = 50pF
85
80
50
100
CLOAD (pF)
150
200
85
780
105
6
10
VL SUPPLY CURRENT
vs. LOAD CAPACITANCE
VL = 1.8V
VCC = 3.3V
0
-15
TEMPERATURE (°C)
115
110
-40
85
TEMPERATURE (°C)
MAX3370-06
-40
IVL (μA)
MAX3370/MAX3371
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
480
380
280
180
RATE = 500kbps, CLOAD = 30pF,
OPEN-DRAIN DRIVE
80
0
50
100
CLOAD (pF)
150
_______________________________________________________________________________________
200
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
(Driving I/O VL rail-to-rail, RL = 1MΩ, TA = +25°C, unless otherwise noted.)
LOW-TO-HIGH TRANSITION
35
30
25
20
HIGH-TO-LOW TRANSITION
15
MAX3370-09
MAX3370-08
I/O VL
25
0
HIGH-TO-LOW TRANSITION
20
1V/div
15
I/O VCC
10
10
LOW-TO-HIGH TRANSITION
5
5
0
0
0
50
100
150
0
200
50
100
150
200
100ns/div
CLOAD (pF)
CLOAD (pF)
OPEN-DRAIN DRIVING
(RATE = 500kbps, CLOAD = 30pF,
VCC = 3.3V, VL = 1.8V)
MAX3370-11
RAIL-TO-RAIL DRIVING
(RATE = 1Mbps, CLOAD = 50pF,
VCC = 3.3V, VL = 1.8V)
MAX3370-10
I/O VL
I/O VL
0
0
1V/div
1V/div
I/O VCC
I/O VCC
0
0
200ns/div
400ns/div
OPEN-DRAIN DRIVING
(RATE = 500kbps, CLOAD = 30pF,
VCC = 5V, VL = 2.5V)
MAX3371
EXITING SHUTDOWN
I/O VL
0
MAX3370-13
0
MAX3370-12
PROPAGATION DELAY (ns)
40
VL = 1.8V
VCC = 3.3V
30
PROPAGATION DELAY (ns)
VL = 1.8V
VCC = 3.3V
45
35
MAX3370-07
50
RAIL-TO-RAIL DRIVING
(RATE = 2Mbps, CLOAD = 10pF,
VCC = 3.3V, VL = 1.8V)
PROPAGATION DELAY
vs. LOAD CAPACITANCE (DRIVING I/O VCC)
PROPAGATION DELAY
vs. LOAD CAPACITANCE (DRIVING I/O VL)
I/O VCC
0
2V/div
I/O VL
0
2V/div
I/O VCC
VSHDN
0
0
400ns/div
100ns/div
_______________________________________________________________________________________
7
MAX3370/MAX3371
Typical Operating Characteristics (continued)
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
MAX3370/MAX3371
Pin Description
PIN
(SC70-5)
(μDFN-6)
MAX3371
(SC70-6 AND
μDFN-6)
1
1
1
VL
2
2
2
GND
Ground
3
3
3
I/O VL
Input/Output Referred to VL
MAX3370
NAME
4
4
4
I/O VCC
5
6
6
VCC
—
—
5
SHDN
—
5
—
N.C.
FUNCTION
Logic Supply Voltage
Input/Output Referred to VCC
Power-Supply Voltage
Shutdown. A high turns on the device. A low shuts
down the device. I/O VCC and I/O VL are high impedance
in shutdown.
No Connection
Functional Diagram
Detailed Description
The MAX3370/MAX3371 provide the necessary level
translation to allow data transfer in a multivoltage system. These devices transmit data between an I/O pin
referenced to VCC and an I/O pin referenced to VL. The
VCC supply voltage range is from +2.5V to +5.5V, and
the V L supply voltage range is between +1.6V and
+5.5V. The MAX3371 features a shutdown mode in
which I/O VCC and I/O VL are placed in a high-impedance state and supply current drops to 1µA.
The MAX3370/MAX3371 are bidirectional level shifters
allowing data transfer from the VCC side to the VL side,
and from the VL side to the VCC side. Both devices
operate at speeds up to 2Mbps with an active driver
and up to 500kbps with an open-drain driver.
VCC
VL
MAX3370
S2
R1
I/O VL
S1
R2
I/O VCC
MNSW
SPEEDUP
GND
Level Translation
The MAX3370/MAX3371 provide bidirectional level
translation between I/O pins referred to VCC and VL.
I/O VCC and I/O VL are internally pulled up to their
respective power-supply rails through 10kΩ resistors.
VCC must be between +2.5V and +5.5V, and VL must
be between +1.6V and +5.5V. For proper operation, VL
can not exceed VCC.
The MAX3370/MAX3371 can operate at data rates up
to 2Mbps when driven by an active (push-pull) driver
with a 10pF load, 1Mbps when driven by an active driver with a 50pF load, or 500kbps when driven by an
open-drain driver with a 30pF load. The internal pullups
allow these devices to be driven by open-drain drivers.
8
MAX3371 Shutdown Mode
The MAX3371 enters a low-power shutdown mode
when SHDN is driven low. Connect SHDN to VL or drive
high for normal operation. Activating shutdown mode
disconnects the internal 10kΩ pullup resistors on I/O
V CC and I/O V L . As a result, the supply current
decreases to < 1µA, and the I/O lines are high impedance. The high impedance I/O lines in shutdown allow
use in a multidrop network. When in shutdown, I/O VL
can be driven to VL and I/O VCC can be driven to VCC.
_______________________________________________________________________________________
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
Applications Information
Power-Supply Decoupling
To reduce ripple and the chance of transmitting incorrect data, decouple VCC and VL to ground with a 0.1µF
capacitor as close to the device as possible.
I2C Level Translation
The MAX3370/MAX3371 are ideal for level translation
between a low-voltage ASIC and an I2C device. The
devices’ bidirectional natures allow their use in the data
line of I 2C communications. A typical application is
interfacing a low-voltage microprocessor to a 3V or 5V
D/A converter, such as the MAX517.
The I/O lines on the MAX3370/MAX3371 are bidirectional, can be level-shifted up to +5.5V, and contain
internal 10kΩ pullup resistors to allow open-drain driving (see the Typical Operating Circuit).
Push-Pull vs. Open-Drain Driving
The MAX3370/MAX3371 I/O pins can be driven by a
push-pull or open-drain device. When using a push-pull
driver, the MAX3370/MAX3371 operate up to 2Mbps
with a 10pF load or 1Mbps with a 50pF load. The internal pullup resistors on the I/O pins allow use with opendrain devices. The MAX3370/MAX3371 operate up to
500kbps with a 30pF load when driven by an opendrain device.
Data rates higher than those listed in the Electrical
Characteristics table can be achieved. The maximum
data rate is limited to 3Mbps by the speed-up circuitry.
Unidirectional vs. Bidirectional Level Translator
The MAX3370/MAX3371 may also be used to translate
unidirectional signals without signal inversion. The
devices provide the smallest solution (SC70 package)
for unidirectional level translation without inversion.
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages.
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
5 SC70
X5+1
21-0076
6 SC70
X6SN+1
21-0077
6 µDFN
L611+2
21-0147
_______________________________________________________________________________________
9
MAX3370/MAX3371
Speed-Up
The speed-up circuit is a one-shot generator that helps
the rise time of the output waveform in the low-to-high
transition. When triggered, switches S1 and S2 turn on
for 320ns to pull up I/O VL and I/O VCC. This greatly
reduces the rise time and propagation delay for the
low-to-high transition as well as improves the duty cycle
(closer to 50% for an ideal square-wave input). See the
scope plots in the Typical Operating Characteristics for
the speed-up circuitry in operation.
MAX3370/MAX3371†
1µA, 2Mbps, Low-Voltage Level
Translators in SC70 and µDFN
Revision History
REVISION
NUMBER
REVISION
DATE
0
10/00
Initial release
3
5/09
Updated Ordering Information, style edits.
DESCRIPTION
PAGES
CHANGED
—
1, 5, 8, 9, 11
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2009 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
工商网监
湘ICP备2023018690号
