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MAX3380ECUP Datasheet

  • MAX3380ECUP

  • +2.35V至+5.5V、1μA、2Tx/2Rx RS-232收發(fā)器，帶有±15kV ESD保...

  • 257.67KB

  • 14頁

  • MAXIM   MAXIM

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19-2128; Rev 0; 8/01
+2.35V to +5.5V, 1碌A(chǔ), 2Tx/2Rx RS-232 Transceivers
with 鹵15kV ESD-Protected I/O and Logic Pins
General Description
The MAX3380E/MAX3381E are +2.35V to +5.5V-pow-
ered EIA/TIA-232 and V.28/V.24 communication inter-
faces with low power requirements, high data-rate
capabilities, and enhanced electrostatic discharge
(ESD) protection on both the TTL and RS-232 sides.
The MAX3380E/MAX3381E have two receivers and two
transmitters. All RS-232 inputs, outputs, and logic input
pins are protected to 鹵15kV using IEC 1000-4-2 Air-
Gap Discharge method and the Human Body Model,
and 鹵8kV using IEC 1000-4-2 Contact Discharge
method.
The proprietary low-dropout transmitter output stage
enables true RS-232 performance from a +3.1V to
+5.5V supply with a dual charge pump. The parts
reduce the transmitter output levels to RS-232-compati-
ble levels with no increase in supply current for sup-
plies less than +3.1V and greater than +2.35V. The
+2.35V to +5.5V operating range is fully compatible
with lithium-ion (Li+) batteries. The charge pump
requires only four small 0.1碌F capacitors for operation.
The MAX3380E/MAX3381E transceivers use Maxim鈥檚
revolutionary AutoShutdown Plus鈩?feature to auto-
matically enter a 1碌A(chǔ) shutdown mode. These
devices shut down the on-board power supply and
drivers when they do not sense a valid signal transi-
tion for 30 seconds on either the receiver or trans-
mitter inputs.
The MAX3380E is capable of transmitting data at
rates of 460kbps while maintaining RS-232 output
levels, and the MAX3381E operates at data rates up
to 250kbps. The MAX3381E offers a slower slew rate
for applications where noise and EMI are issues. The
MAX3380E/MAX3381E have a unique V
L
pin that
allows interoperation in mixed-logic voltage systems
down to +1.65V. Both input and output logic levels
are referenced to the V
L
pin. The MAX3380E/MAX3381E
are available in a space-saving TSSOP package.
Features
o
鹵15kV ESD Protection on All CMOS and RS-232
Inputs and Outputs (Except
INVALID)
鹵15kV Human Body Model
鹵15kV IEC 1000-4-2 Air-Gap Discharge
鹵8kV IEC 1000-4-2 Contact Discharge
o
Operates Over Entire Li+ Battery Range
o
Low Logic Threshold Down to +1.65V for
Compatibility with Cell Phone Logic Supply Voltages
o
1碌A(chǔ) Low-Power AutoShutdown Plus Mode
o
Compatible with Next-Generation GSM Data Rates
o
20-Pin TSSOP Package
MAX3380E/MAX3381E
Ordering Information
PART
MAX3380ECUP
MAX3380EEUP
MAX3381ECUP
MAX3381EEUP
TEMP. RANGE
0擄C to +70擄C
-40擄C to +85擄C
0擄C to +70擄C
-40擄C to +85擄C
PIN-PACKAGE
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
Typical Operating Circuit
+3.3V
C5
0.1碌F
V
CC
C1+
C1-
C2+
C2-
T1IN
V
L
C1
0.1碌F
FORCEOFF
FORCEON
V+
C2
0.1碌F
MAX3380E/
MAX3381E
C3
0.1碌F
V-
C4
0.1碌F
Applications
Cell Phone Data Lump Cables
PDA Data Lump Cables
GPS Receivers
Digital Cameras
TTL/CMOS
INPUTS
T1OUT
RS-232
OUTPUTS
T2IN
V
L
R1OUT
T2OUT
R1IN
5k鈩?/div>
V
L
RS-232
INPUTS
TTL/CMOS
OUTPUTS
AutoShutdown Plus is a trademark of Maxim Integrated Products
Pin Configuration appears at end of data sheet.
R2OUT
R2IN
5k鈩?/div>
GND
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

MAX3380ECUP 產(chǎn)品屬性

  • Maxim Integrated Products

  • 460 Kbps

  • 2.35 V to 5.5 V

  • 1 mA

  • 0 C to + 70 C

  • SMD/SMT

  • TSSOP-20

  • Transceiver

  • 2

  • 8

  • 2

  • 0.15 us

  • Yes

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