LT1330CG Linear Technology, LT1330CG Datasheet

IC TXRX 5V RS232 W/3VLOGC 28SSOP

LT1330CG

Manufacturer Part Number
LT1330CG
Description
IC TXRX 5V RS232 W/3VLOGC 28SSOP
Manufacturer
Linear Technology
Type
Transceiverr
Datasheet

Specifications of LT1330CG

Number Of Drivers/receivers
3/5
Protocol
RS232
Voltage - Supply
4.5 V ~ 5.5 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:
LT1330CG
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1330CG#PBF
Manufacturer:
TOS
Quantity:
359
Part Number:
LT1330CG#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1330CG#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
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APPLICATIONS
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TYPICAL APPLICATION
LINE
FEATURES
1.0μF
TO
2 0.1μF
3V Logic Interface
ESD Protection over ±10kV
Uses Small Capacitors: 0.1μF , 0.2μF , 1.0μF
One Low Power Receiver Remains Active While in
Shutdown
Pin Compatible with LT1137A and LT1237
120kBaud Operation for R
250kBaud Operation for R
CMOS Comparable Low Power: 30mW
Easy PC Layout—Flowthrough Architecture
Rugged Bipolar Design
Outputs Assume a High Impedance State When Off
or Powered Down
Absolutely No Latchup
60μA Supply Current in Shutdown
Available in SO and SSOP Packages
Notebook Computers
Palmtop Computers
RX5 IN (LOW-Q)
DRIVER 1 OUT
DRIVER 2 OUT
DRIVER 3 OUT
ON/OFF
5V V
RX1 IN
RX2 IN
RX3 IN
RX4 IN
3V V
V
CC
+
L
10
11
12
13
14
1
2
3
4
5
6
7
8
9
LT1330
L
L
= 3k, C
= 3k, C
28
27
26
25
24
23
22
21
20
19
18
17
16
15
L
L
DRIVER 1 IN
RX1 OUT
DRIVER 2 IN
RX2 OUT
RX3 OUT
RX4 OUT
DRIVER 3 IN
RX5 OUT (LOW-Q)
GND
DRIVER
DISABLE
= 2500pF
= 1000pF
V
2 0.1μF
TO LOGIC
RING DETECT IN
SHUTDOWN
CONTROL OUT
μCONTROLLER OR
μPROCESSOR
Receiver Active in Shutdown
3V Logic Interface and One
0.1μF
DESCRIPTION
The LT
ceiver with low supply current. Designed to interface
with new 3V logic, the LT1330 operates with both a 5V
power supply and a 3V logic power supply. The chip may
be shut down to micropower operation with one receiver
remaining active to monitor RS232 inputs such as ring
detect from a modem.
The LT1330 is fully compliant with all EIA RS232 spec-
ifi cations. Additionally, the RS232 line input and output pins
are resilient to multiple ±10kV ESD strikes. This eliminates
the need for costly TransZorbs
part.
The LT1330 operates to 120kbaud even driving high
capacitive loads. During shutdown, driver and receiver
outputs are at a high impedance state allowing devices to
be paralleled.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
TransZorb is a registered trademark of General Instrments, GSI.
5V RS232 Transceiver with
®
1330 TA01
1330 is a three driver, fi ve receiver RS232 trans-
C
L
RECEIVER
C
= 2500pF
OUTPUT
OUTPUT
L
DRIVER
V
R
= 50pF
L
INPUT
L
= 3V
= 3k
Output Waveforms
®
on line pins for the RS232
LT1330
1330fb
1330 TA02
1

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LT1330CG Summary of contents

Page 1

... The LT1330 operates to 120kbaud even driving high capacitive loads. During shutdown, driver and receiver outputs are at a high impedance state allowing devices to be paralleled. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. TransZorb is a registered trademark of General Instrments, GSI. – 28 ...

Page 2

... L DR3 OUT RX5 IN (LOW-Q) ON/OFF 3V V 28-LEAD PLASTIC SSOP Consult factory for Military grade parts. PART MARKING PACKAGE DESCRIPTION LT1330CG 28-Lead Plastic SSOP LT1330CNW 28-Lead (Wide) PDIP LT1330CSW 28-Lead (Wide) Plastic SO http://www.linear.com/leadfree/ http://www.linear.com/tapeandreel/ l The denotes the specifi cations which apply over the full operating ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range (0°C ≤ T ≤ 70°C for commercial grade). (Note 2) A PARAMETER CONDITIONS Supply Current When OFF (V ) Shutdown (Note 5) CC Driver Disable Supply Rise Time 0.2μ Shutdown ...

Page 4

LT1330 ELECTRICAL CHARACTERISTICS temperature range (0°C ≤ T ≤ 70°C for commercial grade). A Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS ON/OFF Thresholds 3.0 2.5 2.0 ON THRESHOLD 1.5 1.0 OFF THRESHOLD 0.5 0 –55 – 100 TEMPERATURE (°C) 1330 G07 Driver Short-Circuit Current – ...

Page 6

LT1330 PIN FUNCTIONS Input Supply Pin. This pin should be decoupled CC with a 0.1μF ceramic capacitor close to the package pin. Insuffi cient supply bypassing can result in low output drive levels and erratic charge pump ...

Page 7

... The driver disable mode turns off the charge pump and RS232 drivers, but keeps all fi ve receivers active. Power consumption in driver disable mode is 3mA from V Burst Mode is a registered trademark of Linear Technology Corporation. LT1330 ESD Test Circuit – ...

Page 8

LT1330 PACKAGE DESCRIPTION 0.150 ± 0.005 0.600 – 0.625 (15.240 – 15.875) (3.810 ± 0.127) 0.015 (0.381) MIN 0.009 – 0.015 (0.229 – 0.381) +0.035 0.625 –0.015 0.125 0.035 – 0.080 ( ) +0.889 (3.175) (0.889 – 2.032) 15.87 –0.381 ...

Page 9

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 10

... LOGIC “0” RX1 OUT 24 DRIVER LOGIC “0” RX2 OUT 22 RX3 OUT 21 MOUSE DATA RX4 OUT 20 DRIVER LOGIC “1” RX5 OUT (LOW-Q) 18 GND 17 DRIVER DISABLE 16 15 1330 TA03 LT 0209 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1992 1330fb ...

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