19-1847; Rev 1; 2/01
1 µA, 2 Mb p s , Lo w -Vo lt a g e Le ve l
Tra n s la t o rs in S C7 0
Ge n e ra l De s c rip t io n
Fe a t u re s
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
ꢀ Allow Bidirectional Level Translation
ꢀ Miniature SC70 Packages
ꢀ Operational Down to 1.6V
V
from +2.5V to +5.5V and V from +1.6V to +5.5V,
L
CC
ꢀ Low Quiescent Current (<100µA)
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.
ꢀ 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
The MAX3370/MAX3371 are bidirectional level shifters,
allowing data transfer from the V
side to the V side
side. Both devices
L
CC
and from the V side to the V
L
CC
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
5-pin and 6-pin SC70 packages, respectively.
Ord e rin g In fo rm a t io n
________________________Ap p lic a t io n s
Cell Phone Cradles
TEMP.
RANGE
PIN-
PACKAGE
TOP
MARK
ABV
PART
SHDN
Cell Phone Hands-Free Kits
Portable POS Systems
Portable Communication Devices
Smart Card Readers
MAX3370EXK-T -40°C to +85°C 5 SC70-5
MAX3371EXT-T -40°C to +85°C 6 SC70-6
NO
YES
AAO
SPI™, MICROWIRE™, and I2C™ Level Translation
Low-Voltage ASIC Level Translation
RS-232-Compatible Translation
P in Co n fig u ra t io n s
TOP VIEW
2
I C is a trademark of Philips Corp.
V
1
2
3
5
4
V
CC
L
SPI is a trademark of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
MAX3370
GND
Typ ic a l Op e ra t in g Circ u it
I/O V
I/O V
CC
L
+1.8V
+3.3V
SC70-5
V
L
V
CC
1.8V
SYSTEM
*
SHDN
3.3V SYSTEM
CONTROLLER
V
1
2
3
6
5
4
V
CC
L
MAX3370
MAX3371
DATA
GND
I/O V
L
I/O V
CC
DATA
GND
MAX3371
GND
SHDN
GND
I/O V
I/O V
CC
L
*
MAX3371 ONLY
SC70-6
†
MAX3370/MAX3371 covered by U.S. Patent number 5,894,240.
________________________________________________________________ Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.