LTC1338CG Linear Technology, LTC1338CG Datasheet

IC 5DVR/3RCVR 5V RS232 28-SSOP

LTC1338CG

Manufacturer Part Number
LTC1338CG
Description
IC 5DVR/3RCVR 5V RS232 28-SSOP
Manufacturer
Linear Technology
Type
Transceiverr
Datasheet

Specifications of LTC1338CG

Number Of Drivers/receivers
5/3
Protocol
RS232
Voltage - Supply
4.5 V ~ 5 V
Mounting Type
Surface Mount
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1338CG
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1338CG#TR
Manufacturer:
LT
Quantity:
2 548
Part Number:
LTC1338CG#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURE
A
TYPICAL
0.1 F
C1
PPLICATI
Low Supply Current: 500 A
0.2 A Supply Current in SHUTDOWN
50 A Supply Current in RECEIVER ALIVE Mode
ESD Protection Over 10kV
Operates from a Single 5V Supply
Uses Small Capacitors: 0.1 F
Operates to 120k Baud
Three-State Outputs Are High Impedance When Off
Output Overvoltage Does Not Force Current
Back into Supplies
RS232 I/O Lines Can Be Forced to 25V
Without Damage
Flowthrough Architecture
Battery-Powered Modems
Battery-Powered DCE
Notebook Computers
Palmtop Computers
DRIVER 1 OUT
DRIVER 2 OUT
DRIVER 3 OUT
DRIVER 4 OUT
DRIVER 5 OUT
0.1 F
5-Drivers/3-Receivers with SHUTDOWN
RX ENABLE
C2
RX3 IN
RX1 IN
RX2 IN
S
A
V
NC
O
PPLICATI
V
CC
+
U
10
11
12
13
14
1
2
3
4
5
6
7
8
9
S
LTC1338
O
U
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DRIVER 1 IN
DRIVER 2 IN
RX1 OUT
DRIVER 3 IN
RX2 OUT
DRIVER 4 IN
RX3 OUT
DRIVER 5 IN
V
GND
DRIVER ENABLE
NC
C3
0.1 F
LTC1338 • TA01
5-Driver/3-Receiver Transceiver
C4
0.1 F
D
The LTC1338 is a 5-driver/ 3-receiver RS232 trans-
ceiver with very low supply current. In the no load
condition, the supply current is only 500 A. The charge
pump only requires four 0.1 F capacitors.
In SHUTDOWN mode, the supply current is further
reduced to 0.2 A. In RECEIVER ALIVE mode, all three
receivers are kept alive and the supply current is 50 A.
All RS232 outputs assume a high impedance state in
SHUTDOWN and with the power off.
The LTC1338 is fully compliant with all data rate and
overvoltage RS232 specifications. The transceiver can
operate up to 120k baud with a 2500pF, 3k load. Both
driver outputs and receiver inputs can be forced to
ESD strikes.
25V without damage, and can survive multiple 10kV
ESCRIPTIO
TEST CONDITION:
V
CC
1200
1000
800
600
400
200
= 5V, ALL DRIVER INPUTS TIED TO V
0
–40
5V Low Power RS232
–20
U
SHUTDOWN
QUIESCENT
CURRENT
CURRENT
Supply Current
0
TEMPERATURE (°C)
20
40
60
CC
.
80
LTC1338
LTC1338 • TA02
100
1.2
1.0
0.8
0.6
0.4
0.2
0
1

Related parts for LTC1338CG

LTC1338CG Summary of contents

Page 1

S FEATURE Low Supply Current: 500 A 0.2 A Supply Current in SHUTDOWN 50 A Supply Current in RECEIVER ALIVE Mode ESD Protection Over 10kV Operates from a Single 5V Supply Uses Small Capacitors: 0.1 F Operates to 120k Baud ...

Page 2

... CC V (Note 3) OUT CC = 0mA = 12mA = 0mA = – 12mA U W TOP VIEW ORDER PART – NUMBER + – DR1 IN LTC1338CG 5 24 DR2 IN LTC1338CN 6 RX1 OUT 23 LTC1338CS 7 22 DR3 IN LTC1338IG 8 21 RX2 OUT LTC1338IN 9 DR4 IN 20 LTC1338IS 19 RX3 OUT 18 DR5 IN 17 GND 16 DR ENABLE ...

Page 3

D C ELECTRICAL C HARA TERISTICS PARAMETER Power Supply V Supply Current CC Supply Leakage Current ( Driver/Receiver Enable Threshold Low Driver/Receiver Enable Threshold High AC C HARA TERISTICS C PARAMETER Slew Rate Driver Propagation Delay (TTL to ...

Page 4

LTC1338 W U TYPICAL PERFOR A CE CHARACTERISTICS V Supply Current DRIVERS LOADED DRIVER LOADED 100 –40 – ...

Page 5

CTIO S DRIVER IN: RS232 Driver Input Pins. Inputs are TTL/ CMOS compatible. Inputs should not be allowed to float. Tie unused inputs DRIVER OUT: Driver Outputs at RS232 Voltage Levels. ...

Page 6

LTC1338 TEST CIRCUITS Driver Timing Test Load DRIVER OUTPUT DRIVER DRIVER INPUT C1 0.1 F RS232 LINE PINS PROTECTED TO ±10kV 6 51pF 3k LTC1338 • F03 ESD Test Circuit + LTC1338 ...

Page 7

... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm). Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 8

... Linear Technology Corporation Rm. 801, No. 46, Sec. 2 Chung Shan N. Rd. Taipei, Taiwan, R.O.C. Phone: 886-2-521-7575 FAX: 886-2-562-2285 UNITED KINGDOM Linear Technology (UK) Ltd. The Coliseum, Riverside Way Camberley, Surrey GU15 3YL United Kingdom Phone: 44-276-677676 FAX: 44-276-64851 08/16/93 LT/GP 1093 10K REV 0 • PRINTED IN USA ...

Related keywords