1993
DATA SHEET
MOS INTEGRATED CIRCUIT
PD4724
Document No. S12201EJ2V0DS00 (2nd edition)
(Previous No. IC-3228)
Date Published January 1997 N
Printed in Japan
RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V
The
PD4724 is a high breakdown voltage silicon gate CMOS line driver/receiver based on the EIA/TIA-232-E
standard. This IC features various functions, such as standby, and incorporates a DC/DC converter that switches boost
multiples, enabling operation at both +3.3 V and +5 V single supply voltage.
The
PD4724 incorporates three drivers and five receivers, so an RS-232 interface circuit can be easily constructed
by connecting five external capacitors.
FEATURES
Based on EIA/TIA-232-E (RS-232-C) standard.
Single power supply: +3.3 V or +5 V (selectable with the V
CHA
pin)
Standby mode: Setting the standby pin to low level switches this IC into the standby mode and makes
the driver outputs high-impedance.
Enable mode: When the enable pin is high level during the standby mode, two receivers can operate as inverters
without hysteresis width (The other three receivers are fixed to high level).
ORDERING INFORMATION
Part number
Package
PD4724GS-GJG
30-pin plastic shrink SOP (300 mil)
2
PD4724
BLOCK DIAGRAM/PIN CONFIGURATION (TOP VIEW)
C
1
+
V
DD
V
CC
C
1
C
5
+
GND
C
4
+
GND
C
4
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
C
3
+10 V
C
1
C
5
+3.3 V
or
+5 V
D
IN1
D
IN2
D
IN3
R
OUT1
R
OUT2
R
OUT3
R
OUT4
R
OUT5
D
OUT1
D
OUT2
D
OUT3
R
IN1
R
IN2
R
IN3
R
IN4
R
IN5
Note
EN
V
CHA
STBY
10 V
C
2
C
4
300
300
300
5.5 k
5.5 k
5.5 k
5.5 k
5.5 k
+
+
+
+
+
C
5
Note The pull-up resistors of the driver inputs are active resistors.
Remark 1.
V
DD
and V
SS
are pins that output the voltage boosted internally. Don't connect these pins to the
load.
2.
Capacitors with a breakdown voltage of 20 V or higher are recommended for C
1
to C
5
. And it is
recommended to insert the capacitor that is 0.1
F to 1
F between V
CC
and GND.
3.
The capacitor C
5
does not have to be connected when the IC is used in 5 V mode (V
CHA
= L).
3
PD4724
STBY EN
Remark
TRUTH TABLE
Driver
STBY
D
IN
D
OUT
Remark
L
Z
Standby mode (D/D converter OFF)
H
L
H
Space level output
H
H
L
Mark level output
Receiver
R
IN
R
OUT
R
4
to R
5
R
1
to R
3
R
4
to R
5
R
1
to R
3
L
L
H
H
Standby mode1 (D/D converter OFF)
L
H
L
H
H
Standby mode2 (D/D converter OFF, R
4
and R
5
operate)
L
H
H
L
H
Standby mode2 (D/D converter OFF, R
4
and R
5
operate)
H
L
H
Mark level input
H
H
L
Space level input
3 V and 5 V Switching
Note
V
CHA
Operation mode
L
5 V mode (Double boost)
H
3 V mode (Triple boost)
H: High level, L: Low level, Z: High-impedance,
: Don't care
Note Be sure to switch the V
CHA
pin in standby mode (STBY = L).
4
PD4724
ABSOLUTE MAXIMUM RATINGS (T
A
= +25
C)
Parameter
Symbol
Ratings
Unit
Supply Voltage (V
CHA
= L)
V
CC
0.5 to +7.0
V
Supply Voltage (V
CHA
= H)
V
CC
0.5 to +4.5
V
Driver Input Voltage
D
IN
0.5 to V
CC
+ 0.5
V
Receiver Input Voltage
R
IN
30.0 to +30.0
V
Control Input Voltage (STBY, V
CHA
, EN)
V
IN
0.5 to V
CC
+ 0.5
V
Driver Output Voltage
D
OUT
25.0 to +25.0
Note
V
Receiver Output Voltage
R
OUT
0.5 to V
CC
+ 0.5
V
Input Current (D
IN
, STBY, V
CHA
, EN)
I
IN
20.0
mA
Operating Temperature
T
A
40 to +85
C
Storage Temperature
T
stg
55 to +150
C
Power Dissipation
P
T
0.5
W
Note Pulse width = 1 ms, duty cycle = 10 % MAX.
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
MIN.
TYP.
MAX.
Unit
Supply Voltage (V
CHA
= L, 5 V mode)
V
CC
4.5
5.0
5.5
V
Supply Voltage (V
CHA
= H, 3 V mode)
V
CC
3.0
3.3
3.6
V
High Level Input Voltage (D
IN
)
V
IH
2.0
V
CC
V
Low Level Input Voltage (D
IN
)
V
IL
0
0.8
V
High Level Input Voltage (STBY, V
CHA
, EN)
V
IH
2.4
V
CC
V
Low Level Input Voltage (STBY, V
CHA
, EN)
V
IL
0
0.6
V
Receiver Input Voltage
R
IN
30
+30
V
Operating Temperature
T
A
40
+85
C
Capacitance of External Capacitor
Note
0.33
4.7
F
Note If the use of an electrolytic capacitor at low temperature is likely, set the capacitance with sufficient
margin, because the capacitance of an electrolytic capacitor is smaller at lower temperatures (0
C or
lower). Care must be taken to minimize the wiring length between the capacitor and this IC. Using
capacitors of excellent high frequency characteristics (such as tantalum, multi-layer ceramic capacitors,
and aluminum electrolytic capacitors for switching power supplies) is highly recommended.
5
PD4724
ELECTRICAL SPECIFICATIONS FOR THE IC AS A WHOLE
(T
A
= 40 to +85
C and C
1
to C
5
= 1
F Unless Otherwise Specified)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
V
CC
= +3.3 V, unloaded, R
IN
pin is open,
STBY = H
V
CC
= +5.0 V, unloaded, R
IN
pin is open,
STBY = H
V
CC
= +3.3 V, R
L
= 3 k
(D
OUT
), D
IN
= GND,
R
IN
and R
OUT
pins are open, STBY = H
V
CC
= +5.0 V, RL = 3 k
(D
OUT
), D
IN
= GND,
R
IN
and R
OUT
pins are open, STBY = H
V
CC
= +3.3 V, No load, D
IN
and R
IN
pins are
OPEN, STBY = L, EN = L, T
A
= 25
C
V
CC
= +3.3 V, No load, D
IN
and R
IN
pins
are OPEN, STBY = L, EN = L
V
CC
= +5.0 V, No load, D
IN
and R
IN
pins are
OPEN, STBY = L, EN = L, T
A
= 25
C
V
CC
= +5.0 V, No load, D
IN
and R
IN
pins
are OPEN, STBY = L, EN = L
V
CC
= +3.3 V, No load, D
IN
and R
IN
pins are
OPEN, STBY = L, EN = H, T
A
= 25
C
V
CC
= +3.3 V, No load, D
IN
and R
IN
pins
are OPEN, STBY = L, EN = H
V
CC
= +5.0 V, No load, D
IN
and R
IN
pins are
OPEN, STBY = L, EN = H, T
A
= 25
C
V
CC
= +5.0 V, No load, D
IN
and R
IN
pins
are OPEN, STBY = L, EN = H
V
CC
= +3.0 to +5.5 V, STBY, V
CHA
, and
EN pins
V
CC
= +3.0 to +5.5 V, STBY, V
CHA
, and
EN pins
V
CC
= +5.5 V, V
I
= +5.5 V, STBY, V
CHA
, and
EN pins
V
CC
= +5.5 V, V
I
= 0 V, STBY, V
CHA
, and
EN pins
Driver and receiver inputs, V
CC
= +3.3
V, to GND, f = 1 MHz
Driver and receiver inputs, V
CC
= +5.0
V, to GND, f = 1 MHz
V
CC
= +3.0 to +5.5 V, STBY
V
CHA
Note
V
CC
= +3.0 to +5.5 V, V
CHA
STBY
Note
V
CC
= +3.0 to +5.5 V, STBY
V
CC
Note
V
CC
= +3.0 to +5.5 V, V
CC
STBY
Note
mA
mA
mA
mA
A
A
A
A
A
A
A
A
V
V
A
A
pF
pF
s
s
s
s
15
11
35
28
3
5
3
5
0.6
1
1
10
10
7.5
5.5
25
19
1
5
2
10
1
5
2
10
I
CC1
I
CC2
I
CC3
I
CC4
V
IH
V
IL
I
IH
I
IL
C
IN
t
SCH
t
CHS
t
SC
t
CS
Circuit Current
Circuit Current
Input Capacitance
Circuit Current at Standby
(Standby Mode 2)
Circuit Current at Standby
(Standby Mode 1)
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
2.4
1
1
1
1
STBY - V
CHA
Time
V
CHA
- STBY Time
STBY - V
CC
Time
V
CC
- STBY Time
Remark TYP. values are valid only at T
A
= 25
C and should be used for reference only.
6
PD4724
Note Test points for these parameters
5 V
0 V
3.3 V
0 V
5 V
3.3 V
3.3 V
0.6 V
0.6 V
0.6 V
0.6 V
0.6 V
0.6 V
2.4 V
2.4 V
4.5 V
4.5 V
3.6 V
3.6 V
t
SC
t
CS
t
CS
t
SC
t
CHS
t
SCH
t
CHS
STBY
V
CHA
V
CC
t
SCH
7
PD4724
ELECTRICAL SPECIFICATIONS FOR THE DRIVERS (T
A
= 40 to +85
C and C
1
to C
5
= 1
F)
3 V Mode (V
CHA
= H, V
CC
= 3.0 to 3.6 V Unless Otherwise Specified)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Low Level Input Voltage
V
IL
0.8
V
High Level Input Voltage
V
IH
2.0
V
Low Level Input Current
I
IL
V
CC
= +3.6 V, V
I
= 0 V
25
A
High Level Input Current
I
IH
V
CC
= +3.6 V, V
I
= 3.6 V
1.0
A
V
CC
= +3.3 V, R
L
=
, T
A
= 25
C
9.5
V
V
CC
= +3.3 V, R
L
= 3 k
, T
A
= T
opt.
5.0
6.0
V
V
CC
= +3.0 V, R
L
= 3 k
, T
A
= 25
C
5.0
V
Output Short-Circuit Current
I
SC
V
CC
= +3.3 V, to GND
40
mA
C
L
= 10 pF, R
L
= 3 to 7 k
3.0
30
V/
s
C
L
= 2500 pF, R
L
= 3 to 7 k
3.0
30
V/
s
t
PHL
t
PLH
V
CC
= V
DD
= V
SS
= 0 V
V
OUT
=
2 V
Output Transfer Time in Standby State
t
DAZ
R
L
= 3 k
, C
L
= 2500 pF,
Note 2
4
10
s
Output Transfer Time in Standby State
t
DZA
R
L
= 3 k
, C
L
= 2500 pF,
Note 2
1
3
ms
Power On Output Transfer Time
t
PRA
R
L
= 3 k
, C
L
= 2500 pF,
Note 3
1
3
ms
Remark TYP. values are valid only at T
A
= 25
C and should be used for reference only.
5 V Mode (V
CHA
= L, V
CC
= 5.0 V
10 % Unless Otherwise Specified)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Low Level Input Voltage
V
IL
0.8
V
High Level Input Voltage
V
IH
2.0
V
Low Level Input Current
I
IL
V
CC
= +5.5 V, V
I
= 0 V
40
A
High Level Input Current
I
IH
V
CC
= +5.5 V, V
I
= 5.5 V
1.0
A
V
CC
= +5.0 V, R
L
=
, T
A
= 25
C
9.7
V
Output Voltage
V
DO
V
CC
= +5.0 V, R
L
= 3 k
, T
A
= T
opt.
6.0
V
V
CC
= +4.5 V, R
L
= 3 k
, T
A
= T
opt.
5.0
V
Output Short-Circuit Current
I
SC
V
CC
= +5.0 V, to GND
40
mA
C
L
= 10 pF, R
L
= 3 to 7 k
4.0
30
V/
s
C
L
= 2500 pF, R
L
= 3 to 7 k
4.0
30
V/
s
t
PHL
t
PLH
V
CC
= V
DD
= V
SS
= 0 V
V
OUT
=
2 V
Output Transfer Time in Standby State
t
DAZ
R
L
= 3 k
, C
L
= 2500 pF,
Note 2
4
10
s
Output Transfer Time in Standby State
t
DZA
R
L
= 3 k
, C
L
= 2500 pF,
Note 2
0.5
1
ms
Power-On Output Transfer Time
t
PRA
R
L
= 3 k
, C
L
= 2500 pF,
Note 2
0.5
1
ms
Remark TYP. values are valid only at T
A
= 25
C and should be used for reference only.
Propagation Delay Time
Note 1
R
L
= 3 k
, C
L
= 2500 pF
2.5
s
Output Resistance
R
O
300
Slew Rate
Note 1
SR
Output Voltage
V
DO
Slew Rate
Note 1
SR
Propagation Delay Time
Note 1
R
L
= 3 k
, C
L
= 2500 pF
2
s
Output Resistance
R
O
300
8
PD4724
Note 1
Test points for slew rate, t
PHL
, and t
PLH
Note 2
Test points for t
DAZ
, and t
DZA
V
CC
0 V
V
D0
+
V
D0
0.8 V
2.0 V
+5 V
+3 V
3 V
+3 V
3 V
5 V
SR
+
SR
D
OUT
t
PLH
t
PHL
D
IN
0.6 V
2.4 V
t
DAZ
t
DZA
+5 V
+5 V
5 V
5 V
0 V
V
D0
+
V
D0
STBY
D
OUT
High-impedance
V
CC
Driver outputs are indefinite during transition time (t
DZA
).
9
PD4724
Note 3
Test points for t
PRA
in 3 V mode
Note 4
Test points for t
PRA
in 5 V mode
Driver outputs are indefinite during transition time (t
PRA
).
Driver outputs are indefinite during transition time (t
PRA
).
3.3 V
0 V
V
D0
V
CC
D
OUT
3.0 V
+5 V
5 V
t
PRA
High-impedance
V
D0
+
+5 V
5 V
4.5 V
t
PRA
V
D0
D
OUT
V
D0
+
0 V
V
CC
High-impedance
5 V
10
PD4724
ELECTRICAL SPECIFICATIONS FOR THE RECEIVERS
(V
CC
= 3.0 to 5.5 V, T
A
= 40 to +85
C and C
1
to C
5
= 1
F Unless Otherwise Specified)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Low Level Output Voltage
V
OL1
I
OUT
= 4 mA
0.4
V
High Level Output Voltage
V
OH1
I
OUT
= 4 mA
V
CC
-0.4
V
Low-Level Output Voltage
V
OL2
I
OUT
= 4 mA, STBY = L
0.5
V
High Level Output Voltage
V
OH2
I
OUT
= 4 mA, STBY = L
V
CC
-0.5
V
Propagation Delay Time
t
PHL
R
IN
R
OUT
, C
L
= 150 pF
(STBY = H)
t
PLH
V
CC
= +3.0 V,
Note 1
Propagation Delay Time
t
PHL
R
IN
R
OUT
, C
L
= 150 pF
(STBY = L)
t
PLH
V
CC
= +3.0 V,
Note 2
Propagation Delay Time
t
PHA
EN
R
OUT
, C
L
= 150 pF
(STBY = L)
t
PAH
V
CC
= +3.0 V,
Note 3
Input Resistance
R
I
3
5.5
7
k
Input Terminal Release Voltage
V
IO
0.5
V
V
IH
V
CC
= +3.0 to + 5.5 V
1.7
2.3
2.7
V
V
IL
V
CC
= +3.0 to + 5.5 V
0.7
1.1
1.7
V
V
CC
= +3.0 to + 5.5 V
(Hysteresis width)
V
IH
V
CC
= +3.0 to + 5.5 V
2.7
1.5
V
V
IL
V
CC
= +3.0 to + 5.5 V
1.5
0.7
V
Output Transition Time in Standby State
t
DAH
Note 4
0.2
3
s
V
CHA
= H (3 V mode),
Note 4
0.6
3
ms
V
CHA
= L (5 V mode),
Note 4
0.3
1
ms
V
CHA
= H (3 V mode),
Note 5
1
3
ms
V
CHA
= L (5 V mode),
Note 6
0.5
1
ms
Remark TYP. values are valid only at T
A
= 25
C and should be used for reference only.
Note 1
Test points for t
PHL
, t
PLH
0.2
s
V
H
0.5
1.2
1.8
V
100
300
ns
0.1
s
Input Threshold Voltage
(STBY = H)
Input Threshold Voltage
(STBY = L, EN = H)
Output Transition Time in Standby State
t
DHA
Power-On Reset Release Time
t
PRA
+3 V
0 V
3 V
V
OH
V
OL
R
OUT
0.7 V
2.0 V
t
PLH
t
PHL
2.7 V
0.8 V
R
IN
11
PD4724
Note 2
Test points for t
PHL
, t
PLH
0.7 V
2.7 V
2.0 V
t
PLH
t
PHL
0.8 V
+3 V
0 V
3 V
V
OH
V
OL
R
OUT
R
IN
Note 3
Test points for t
PHA
, t
PAH
0 V
V
OH
V
OL
EN
R
OUT
2.4 V
0.6 V
0.8 V
2.0 V
t
PHA
t
PAH
V
CC
Note 4
Test points for t
DAH
, t
DHA
V
CC
0 V
V
OH
V
OL
R
OUT
2.0 V
0.6 V
t
DAH
0.8 V
2.4 V
t
DHA
STBY
Receiver outputs are indefinite during transition time (t
DHA
).
12
PD4724
Note 5
Test points for t
PRA
in 3 V mode
Note 6
Test points for t
PRA
in 5 V mode
Receiver outputs are indefinite during reset release time (t
PRA
).
3.3 V
0 V
V
OH
V
OL
V
CC
R
OUT
3.0 V
t
PRA
0.8 V
5 V
0 V
V
OH
V
OL
V
CC
R
OUT
4.5 V
t
PRA
0.8 V
Receiver outputs are indefinite during reset release time (t
PRA
).
REFERENCE MATERIAL
IC PACKAGE MANUAL (C10943X)
NEC SEMICONDUCTOR DEVICE RELIABILITY/QUALITY (IEI-1212)
13
PD4724
RECOMMENDED SOLDERING CONDITIONS
The following conditions (see table below) must be met when soldering this product. Please consult with
our sales offices in case other soldering process is used, or in case soldering is done under different
conditions.
TYPES OF SURFACE MOUNT DEVICE
For more details, refer to our document "SMT MANUAL" (C10535E).
PD4724GS-GJG
Soldering
Soldering conditions
Symbol
process
Infrared ray
Peak package's surface temperature: 230
C or below,
IR30-00-2
reflow
Reflow time: 30 seconds or below (210
C or higher),
Number of reflow process: 2, Exposure limit*: None
VPS
Peak package's surface temperature: 215
C or below,
VP15-00-2
Reflow time: 40 seconds or below (200
C or higher),
Number of reflow process: 2,
Exposure limit*: None
Wave
Solder temperature: 260
C or below,
WS60-00-1
soldering
Flow time: 10 seconds or below,
Number of flow process: 1,
Exposure limit*: None
Partial
Terminal temperature: 300
C or below,
heating
Flow time: 10 seconds or below,
method
Exposure limit*: None
* Exposure limit before soldering after dry-pack package is opened.
Sotrage conditions: 25
C and relative humidity at 65 % or less.
Note Do not apply more than a single process at once, except for "Partial heating method".
14
PD4724
P30GS-65-300B-1
ITEM
MILLIMETERS
INCHES
NOTE
Each lead centerline is located within 0.10
mm (0.004 inch) of its true position (T.P.) at
maximum material condition.
10.11 MAX.
0.51 MAX.
0.65 (T.P.)
0.30
0.1250.075
2.0 MAX.
1.70.1
8.10.2
6.10.2
1.00.2
0.15
0.50.2
0.10
0.10
0.398 MAX.
0.020 MAX.
0.026 (T.P.)
0.012
0.0050.003
0.079 MAX.
0.0670.004
0.3190.008
0.2400.008
0.039
0.006
0.020
0.004
0.004
+0.008
0.009
A
B
C
D
E
F
G
H
I
J
K
L
M
N
+0.10
0.05
+0.10
0.05
+0.004
0.002
+0.004
0.003
+0.009
0.008
30 PIN PLASTIC SHRINK SOP (300 mil)
30
I
M
M
D
C
N
K
detail of lead end
E
F
G
B
H
L
J
16
A
1
15
3
+7 3
15
PD4724
[MEMO]
16
PD4724
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in
this document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property
rights of third parties by or arising from use of a device described herein or any other liability arising from use
of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other
intellectual property rights of NEC Corporation or others.
While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or
property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety
measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
"Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a
customer designated "quality assurance program" for a specific application. The recommended applications of
a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device
before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots
Special:
Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
for life support)
Specific:
Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life
support systems or medical equipment for life support, etc.
The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact an NEC sales representative in advance.
Anti-radioactive design is not implemented in this product.
M4 96.5
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