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DATA SHEET
MOS INTEGRATED CIRCUIT
PD4712C/4712D
RS-232 LINE DRIVER/RECEIVER
The PD4712C and 4712D are high-voltage silicon gate CMOS line driver/reciever conforming to the EIA/TIA-232-E standard. It can operate with a single +5 V power source because it is provided with a DC-DC converter. In addition, this line driver/receiver has many ancillary functions, including output control, threshold select, and standby functions. Because the PD4712C and 4712D are provided with four output driver circuits and four receiver circuits, it can constitute an RS-232 interface circuit with a single chip.
FEATURES
* Conforms to EIA/TIA-232-E (RS-232C) standard * +5 V single power source * Threshold select pin selecting two types of threshold voltages * Standby mode can be set by making standby pin high to reduce circuit current. * Three-state output configuration. Both driver and receiver outputs go into high-impedance state in standby mode.
ORDERING INFORMATION
Part Number Package 28-pin plastic DIP (400 mil) 28-pin plastic DIP (400 mil) 28-pin plastic SOP (375 mil) 28-pin plastic SOP (375 mil)
PD4712CCY PD4712DCY PD4712CGT PD4712DGT
Document No. S10316EJ3V1DS00 (3rd edition) Date Published April 1997 N Printed in Japan
(c)
1995
PD4712C/4712D
BLOCK DIAGRAM/PIN CONFIGURATION (Top View)
+10 V + C3 C1 +5 V Bypass capasitor TTL/CMOS INPUT +
1 2 3 4 5
VDD C1
+
DC-DC converter
C4
+
28
+ C4
GND 27 C4
-
VCC C1
-
+ 26 C2 -10 V
VSS 25
GND 300 300 300
24 STBY Standby 23 DOUT1 22 DOUT2 21 DOUT3 20 DOUT4 19 RIN1 5.5 k 5.5 k 5.5 k 5.5 k 18 RIN2 17 RIN3 16 RIN4 15 RCON Threshold control RS-232 INPUT RS-232 OUTPUT
DIN1 DIN2 DIN3 DIN4
6 7 8 9 10
Output control
DCON
300
ROUT1 11 TTL/CMOS OUTPUT ROUT2 12 ROUT3 13 ROUT4 14
* VDD and Vss are output pins of voltages internally boosted. Connecting a load directly to these pins is not recommended. ** The standby pin is internally pulled down. *** Use capacitors with a working voltage of 16 V or higher as C1 through C4. Insert a bypass capasitor about 0.1 to 1 F between VCC pin to GND pin.
2
PD4712C/4712D
TRUTH TABLE Drivers
STBY H L L L DCON X L H H DIN X X L H DOUT Z L H L Remark Standby mode (DC-DC converter stops) Mark level output Space level output Mark level output
Receivers
STBY H L L RIN X L H ROUT Z H L Remark Stanby mode (DC-DC converter stops) Mark level input Space level input
Receiver input threshold voltage
RCON L H RIN1 to RIN2 A mode A mode RIN3 to RIN4 A mode B mode*/C mode **
*: PD4712C, **: PD4712D H: high level, L: low level, Z: high impedance, X: H or L
3
PD4712C/4712D
ABSOLUTE MAXIMUM RATINGS (TA = 25C)
Parameter Supply voltage Driver input voltage Receiver input voltage Driver output voltage Receiver output voltage Receiver input current Operating temperature range Storage temperature range Power dissipation Symbol VCC DIN RIN DOUT ROUT IIN TA Tstg PT Ratings -0.5 to +6.0 -0.5 to VCC +0.5 -30.0 to +30.0 -25.0 to +25.0 Note1 -0.5 to VCC + 0.5 60.0 -40 to +85 -55 to +150 0.5 Unit V V V V V mA C C W
Note 1. Pulse width: 1 ms, duty factor: 10 % MAX.
RECOMMENDED OPERATING RANGE
Parameter Supply voltage Receiver input voltage Operating temperature range External capacitance Symbol MIN. 4.5 -30 -20 4.7 TYP. 5.0 MAX. 5.5 +30 80 47 Unit V V C
VCC RIN
TA Note 2
F
Note 2.
The capacitance of an electrolytic capacitor decreases at a low temperature (0 C or lower). Determine the capacitance of the capacitor to be used taking this into consideration when the PD4712C and 4712D are used at a low temperature. Keep the wiring length between the capacitor and IC as short as possible.
ELECTRICAL CHARACTERISTICS (OVERALL) (Unless otherwise specified, VCC = +5 V 10 %, TA = -20 C to +80 C, C1 to C4 = 22 F)
Parameter Circuit current ICC1 Circuit current ICC2 Standby circuit current ICC (Standby) Standby low-level input voltage Standby high-level input voltage Input capacitance CIN VIL (Standby) VIH (Standby) Driver input and receiver input VCC = +5 V, vs. GND, f = 1 MHz 10 pF 2.0 V Symbol Conditions VCC = +5 V, no load, RIN pin open (Standby pin open) VCC = +5 V, RL = 3 k (DOUT), DIN = GND, RIN and ROUT pins open (Standby pin open) VCC = +5 V, no load, RIN pin open (Standby pin high) Note 3 0.8 V 50 120 25.0 40.0 mA 9.0 18.0 mA MIN. TYP. MAX. Unit
A
* TYP.: Typical (reference) value at TA = 25 C. Note 3. Because the standby pin is internally pulled down, if the standby pin is left open, operating mode is in effect.
4
PD4712C/4712D
ELECTRICAL CHARACTERISTICS (DRIVER) (Unless otherwise specified, VCC = +5 V 10 %, TA = -20 C to +80 C, C1 to C4 = 22 F)
Parameter Low-level input voltage High-level input voltage Low-level input current High-level input current Output voltage VDO Symbol VIL VIH IIL IIH VCC = +5.0 V, RL = , TA = 25 C VCC = +5.0 V, RL = 3 k VCC = +4.5 V, RL = 3 k Output short current Slew rate SR Propagation delay time
Note 4
Conditions
MIN.
TYP.
MAX. 0.8
Unit V V
2.0 0 0 9.7 5.5 5.0 15 1.5 1.5 9 5 0.8 40 30 30 -1.0 1.0
A A
V V V mA V/s V/s
ISC
VCC = +5.0 V, vs. GND CL = 10 pF, RL = 3 to 7 k CL = 2500 pF, RL = 3 to 7 k RL = 3.5 k, CL = 2500 pF VCC = VDD = VSS = 0 V
tPHL tPLH
s
Output resistance RO Standby output transition time Standby output transition time tDAZ tDZA
VOUT = 2 V Note 5 Note 5
300 4 25 10 50
s
ms
* TYP.: Typical (reference) value at TA = 25 C. Note 4. Test point
If the output control pin is made low, the driver output goes low regardless of the driver input state.
6 ns 6 ns
5 Driver input 0 90 % 1.5 V 10 % 10 % 90 % 1.5 V
tPHL VOH Driver output tPLH 90 % 3V -3 V
3V -3 V
VOL
10 %
SR
SR
5
PD4712C/4712D
Note 5. Test Point
5V Standby input 0V 1.5 V 1.5 V
VOH Driver output VOL
+5 V High impedance -5 V +5 V -5 V
tDAZ
tDZA
Do not perform communication within the standby output transition time tDZA on power application or on releasing the standby mode.
ELECTRICAL CHARACTERISTICS (RECEIVER) (Unless otherwise specified, VCC = +5 V 10 %, TA = -20 C to +80 C, C1 to C4 = 22 F)
Parameter Low-level output voltage High-level output voltage Symbol VOL VOH VIL VIH
Note 7
Conditions IOUT = 4 mA IOUT = -4 mA RCON pin RCON pin RL = 1 k, CL = 150 pF
MIN.
TYP.
MAX 0.4
Unit V V
VCC -0.8
Low-level input voltage High-level input voltage Propagation delay time
0.8 2.0 0.13 1 3 5 7 0.5 1.6 0.6 0.5 1.6 -0.4 2.6 -0.4 -0.8 0.5 2.2 1 1.2 2.2 -1.8 4.0 -0.8 -2.0 1.2 0.4 0.03 2.6 1.6 1.8 2.6 -3.0 5.4 -1.6 -3.0 1.8 1 10
V V
tPHL tPLH
s
mA k V V V V V V V V V V
Input current Input resistance Input pin release voltage Input threshold A mode (RCON pin low)
IIN RI VIO VIH VIL VH Input threshold A mode only VCC = +5 V VCC = +5 V VCC = +5 V (hysteresis width) VCC = +5 V VCC = +5 V VCC = +5 V (hysteresis width) VCC = +5 V VCC = +5 V VCC = +5 V (hysteresis width) Note 8 Note 8
Input threshold B mode (RCON pin high)
Note 6
VIH VIL VH VIH VIL VH tDAZ tDZA
Only applicable to the PD4712C Input threshold C mode (RCON pin high) Only applicable to the PD4712D Standby output transition time Standby output transiton time
Note 6
s
ms
* TYP.: Typical (reference) value at TA = 25 C. Note 6. This data is applicable to receivers 3 and 4 only. Receiver 1 and 2 are fixed in input threshold A mode.
6
PD4712C/4712D
Note 7. Test Point
10 ns 10 ns
5 Receiver input -5 90 % VIL TYP. 10 % 10 %
90 % VIH TYP.
tPHL tPLH VOH Receiver output 1.5 V VOL 1.5 V
Note 8.
Test Point
5V
Standby input 0V
1.5 V
1.5 V
VOH Receiver output VOL
90 % High impedance 10 %
tDAZ
tDZA
The receiver output is undefined during the standby output transition time tDZA. Do not perform communication in the standby output transition time tDZA on power application or on releasing the standby mode.
7
PD4712C/4712D
TEST CIRCUIT Driver output voltage/Output current (+ side)
+10 V + C3 C1 +5 V +
1 2 3 4 5 6
VDD C1
+
DC-DC converter
C4
+
28
+ C4
GND 27 C4
-
VCC C1
-
26
+ C2 -10 V
VSS 25 STBY 24 300 23 22 21 20 19 5.5 k 5.5 k 5.5 k 5.5 k 18 17 16 15
GND
7 8 9 10 11 12 13 14 300 300 300
V IDO VDO
Driver output voltage/Output current (- side)
+10 V + C3 C1 +5 V +
1 2 3 4 5 6
VDD C1
+
DC-DC converter
C4
+
28
+ C4
GND 27 C4
-
VCC C1
-
26
+ C2 -10 V
VSS 25 STBY 24 300 23 22 21 20 19 5.5 k 5.5 k 5.5 k 5.5 k 18 17 16 15
GND
7 8 9 10 11 12 13 14 300 300 300
V IDO VDO
8
PD4712C/4712D
PACKAGE DRAWINGS
28PIN PLASTIC DIP (400 mil)
28 15
1
A I
14
K P L
J
H G
F D N
M
C B
M
R
NOTES 1) Each lead centerline is located within 0.25 mm (0.01 inch) of its true position (T.P.) at maximum material condition. 2) ltem "K" to center of leads when formed parallel.
ITEM MILLIMETERS A B C D F G H I J K L M N P R 35.56 MAX. 1.27 MAX. 2.54 (T.P.) 0.500.10 1.1 MIN. 3.50.3 0.51 MIN. 4.31 MAX. 5.72 MAX. 10.16 (T.P.) 8.6 0.25 +0.10 -0.05 0.25 0.9 MIN. 0~15
INCHES 1.400 MAX. 0.050 MAX. 0.100 (T.P.) 0.020 +0.004 -0.005 0.043 MIN. 0.1380.012 0.020 MIN. 0.170 MAX. 0.226 MAX. 0.400 (T.P.) 0.339 0.010 +0.004 -0.003 0.01 0.035 MIN. 0~15 P28C-100-400-1
9
PD4712C/4712D
28 PIN PLASTIC SOP (375 mil)
28 15
detail of lead end
1 A
14
P
H
G
I
J
F
E
K
C D
NOTE
B M
M
L N
ITEM MILLIMETERS A B C D E F G H I J K L M N P 18.07 MAX. 0.78 MAX. 1.27 (T.P.) 0.40 +0.10 -0.05 0.10.1 2.9 MAX. 2.50 10.30.3 7.2 1.6 0.15 +0.10 -0.05 0.80.2 0.12 0.15 3 +7 -3
INCHES 0.712 MAX. 0.031 MAX. 0.050 (T.P.) 0.016 +0.004 -0.003 0.0040.004 0.115 MAX. 0.098 0.406 +0.012 -0.013 0.283 0.063 0.006 +0.004 -0.002 0.031 +0.009 -0.008 0.005 0.006 3 +7 -3 P28GM-50-375B-3
Each lead centerline is located within 0.12 mm (0.005 inch) of its true position (T.P.) at maximum material condition.
10
PD4712C/4712D
RECOMMENDED SOLDERING CONDITIONS
Soldering the PD4712C and 4712D under the conditions listed in the table below is recommended. For soldering methods and conditions other than those recommended, consult NEC. Surface mount type For the details of the recommended soldering conditions of the surface mount type, refer to Information document "Semiconductor Device Mounting Technology Manual" (C10535EJ7V0IF00)
PD4712CGT, 4712DGT
Soldering Method Infrared reflow Soldering Condition Package peak temperature: 235 C, Time: 3 0 seconds MAX. (210 C MIN.), Number of times: 2, Number of days: not limited* VPS Package peak temperature: 215 C, Time: 40 seconds MAX. (200 C MIN.), Number of times: 2, Number of days: not limited* Wave soldering Soldering bath temperature: 260 C MAX., Time: 10 seconds MAX., Number of times: 1, Number of days: not limited* Pin partial heating Pin temperature: 300 C MAX. (lead temperature), Time: 3 seconds MAX. (per lead pin), Number of days: not limited* WS60-00-1 VP15-00-2 Recommended Condition Symbol IR35-00-2
* The number of days the device can be stored at 25 C, 65 % RH MAX. after the dry pack has been opened. Caution Do not use two or more soldering methods in combination (except the pin partial heating method). Throught-hole type
PD4712CCY, 4712DCY
Soldering Method Wave soldering Soldering Conditions Soldering bath temperature: 260 C MAX., Time: 10 seconds MAX.
REFERENCE DOCUMENTS
"NEC Semiconductor Device Reliability/Quality Control System" (IEI-1212) "Quality Grade on NEC Semiconductor Devices" (IEI-1209) "Semiconductor Device Mounting Technology Manual" (C10535EJ7V0IF00)
11
PD4712C/4712D
[MEMO]
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
12

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