Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLogic ICsLogic IC - Transducer Converter, Bidirectional, Three-state, Open Drain SC 70 5

General Description

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

from +2.5V to +5.5V and V

from +1.6V to +5.5V,

allowing data transfer between low-voltage ASICs and

higher voltage devices. The MAX3371 features a shut-

down 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 V

side to the V

side

and from the V

side to the V

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

Cell Phone Cradles

Cell Phone Hands-Free Kits

Portable POS Systems

Portable Communication Devices

Smart Card Readers

SPI™, MICROWIRE™, and I

C Level Translation

Low-Voltage ASIC Level Translation

RS-232-Compatible Translation

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

MAX3370/MAX3371

†

1µA, 2Mbps, Low-Voltage Level

Translators in SC70 and µDFN

________________________________________________________________

Maxim Integrated Products

GND

I/O V

15V

MAX3370

5 SC70

TOP VIEW

GND

I/O V

16V

5 SHDN

MAX3371

6 SC70

GND

I/O V

16V

MAX3370

6 μDFN

(1mm x 1.5mm)

5 N.C.

GND

I/O V

16V

5 SHDN

MAX3371

6 μDFN

(1mm x 1.5mm)

Pin Configurations

DATA I/O V

I/O V

1.8V

SYSTEM

CONTROLLER

+1.8V +3.3V

3.3V SYSTEM

SHDN

DATA

GNDGND

MAX3371 ONLY

GND

MAX3370

MAX3371

Typical Operating Circuit

19-1847; Rev 3; 5/09

Ordering Information

SPI is a trademark of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

PART* PIN-PACKAGE SHDN TOP MARK

MAX3370EXK+T 5 SC70 NO ABV

MAX3370ELT+T 6 μDFN NO KX

MAX3371ELT+T 6 μDFN YES KY

MAX3371EXT+T 6 SC70 YES AAO

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.

†

All devices are specified over the -40°C to +85°C operating

temperature range.

Denotes lead(Pb)-free/RoHS-compliant package.

Summary of content (10 pages)

PAGE 1
9-1847; 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.
PAGE 2
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..........
PAGE 3
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.
PAGE 4
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.
PAGE 5
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.
PAGE 6
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.
PAGE 7
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.
PAGE 8
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.
PAGE 9
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.
PAGE 10
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.