MAX218CPP Maxim Integrated Products, MAX218CPP Datasheet

IC TXRX RS232 DUAL 120KBPS 20DIP

MAX218CPP

Manufacturer Part Number
MAX218CPP
Description
IC TXRX RS232 DUAL 120KBPS 20DIP
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet
1.MAX218CWP.pdf (8 pages)

Specifications of MAX218CPP

Number Of Drivers/receivers
2/2
Protocol
RS232
Voltage - Supply
1.8 V ~ 4.25 V
Mounting Type
Through Hole
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
MAX218CPP+
Manufacturer:
Maxim
Quantity:
74
The MAX218 RS-232 transceiver is intended for battery-
powered EIA/TIA-232E and V.28/V.24 communications
interfaces that need two drivers and two receivers with
minimum power consumption. It provides a wide +1.8V
to +4.25V operating voltage range while maintaining
true RS-232 and EIA/TIA-562 voltage levels. The
MAX218 runs from two alkaline, NiCd, or NiMH cells
without any form of voltage regulator.
A shutdown mode reduces current consumption to
1µA, extending battery life in portable systems. While
shut down, all receivers can remain active or can be
disabled under logic control, permitting a system incor-
porating the CMOS MAX218 to monitor external
devices while in low-power shutdown mode.
A guaranteed 120kbps data rate provides compatibility
with popular software for communicating with personal
computers. Three-state drivers are provided on all
receiver outputs so that multiple receivers, generally of
different interface standards, can be wire-ORed at the
UART. The MAX218 is available in 20-pin DIP, SO, and
SSOP packages.
________________________Applications
19-0246; Rev 1; 7/95
Call toll free 1-800-998-8800 for free samples or literature.
__________Typical Operating Circuit
_______________General Description
Battery-Powered Equipment
Computers
Printers
Peripherals
Instruments
Modems
ON/OFF
ENABLE
4.25V
1.8V
TO
10
________________________________________________________________ Maxim Integrated Products
3
7
8
9
6
SHDN
V
T1IN
T2IN
R1OUT
R2OUT
CC
EN
1
LX
MAX218
4
T1
T2
R1
R2
19
GND
V+
5, 17, 20
T1OUT
T2OUT
R1IN
R2IN
C1+
C1-
V-
18
16
13
12
11
15
14
True RS-232 Dual Transceiver
1.8V to 4.25V-Powered,
____________________________Features
BETTER THAN BIPOLAR!
*Contact factory for dice specifications.
__________________Pin Configuration
______________Ordering Information
MAX218CPP
MAX218CWP
MAX218CAP
MAX218C/D
MAX218EPP
MAX218EWP
MAX218EAP
Operates Directly from Two Alkaline, NiCd,
or NiMH Cells
+1.8V to +4.25V Supply Voltage Range
120kbps Data Rate
Low-Cost Surface-Mount Components
Meets EIA/TIA-232E Specifications
1µA Low-Power Shutdown Mode
Both Receivers Active During Low-Power Shutdown
Three-State Receiver Outputs
Flow-Through Pinout
On-Board DC-DC Converters
20-Pin SSOP, Wide SO, or DIP Packages
TOP VIEW
PART
R1OUT
R2OUT
SHDN
GND
T1IN
T2IN
N.C.
V
LX
EN
CC
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
10
1
2
3
4
5
6
7
9
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
8
DIP/SO/SSOP
MAX218
20
19
18
17
16
15
14
13
12
11
20 Plastic DIP
20 Wide SO
20 SSOP
Dice*
20 Plastic DIP
20 Wide SO
20 SSOP
PIN-PACKAGE
GND
V+
C1+
GND
C1-
V-
T1OUT
T2OUT
R1IN
R2IN
1

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MAX218CPP Summary of contents

Page 1

... Low-Power Shutdown Mode Both Receivers Active During Low-Power Shutdown Three-State Receiver Outputs Flow-Through Pinout On-Board DC-DC Converters 20-Pin SSOP, Wide SO, or DIP Packages ______________Ordering Information PART MAX218CPP MAX218CWP MAX218CAP MAX218C/D MAX218EPP MAX218EWP MAX218EAP *Contact factory for dice specifications. __________________Pin Configuration ...

Page 2

True RS-232 Dual Transceiver ABSOLUTE MAXIMUM RATINGS Supply Voltages V ....................................................................-0.3V to +4. .......................................................... (V V- .......................................................................+0.3V to -7. ..........................................................................+12V CC LX ................................................................-0.3V to (1V + V+) Input Voltages — — — ...

Page 3

TIMING CHARACTERISTICS (Circuit of Figure 1.8V to 4.25V 0.47µ 1µ 15µ Typical values are 3.0V +25°C PARAMETER SYMBOL ...

Page 4

True RS-232 Dual Transceiver __________________________________________Typical Operating Characteristics (Circuit of Figure 1.8V, all transmitter outputs loaded with 3kΩ SUPPLY CURRENT vs. SUPPLY VOLTAGE 140 1 TRANSMITTER FULL DATA RATE 1 TRANSMITTER 1/8 DATA ...

Page 5

1N6050 1. 4.25V C4 MAX218 3 ON/OFF SHDN 7 T1IN T1OUT T1 T2IN 8 T2OUT T2 R1OUT R2OUT R2 EN GND 4 5, 17, ...

Page 6

True RS-232 Dual Transceiver Table 1. Suggested Component Suppliers MANUFACTURER PART NUMBER Inductors—Surface Mount Murata-Erie LQH4N150K-TA Sumida CD43150 TDK NLC453232T-150K Diodes—Surface Mount Central Semiconductor CMPSH-3, Schottky Motorola MMBD6050LT1, Silicon Philips PMBD6050, Silicon Diodes—Through-Hole 1N6050, Silicon Motorola 1N5817, ...

Page 7

D1 1N6050 DC- CONVERTER MAX878 MAX756 0 MAX218 MAX856 3 ON/OFF SHDN T1IN 7 T1 T2IN R1OUT R1 10 R2OUT ...

Page 8

... 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. 8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1995 Maxim Integrated Products No ...

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