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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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MC145705
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5 Volt Only Driver/Receiver with an Integrated Standby Mode
MC145706 MC145707
EIA-232-E and CCITT V.28
20
P SUFFIX PLASTIC DIP CASE 738
1
The MC145705/06/07 are a series of silicon-gate CMOS transceiver ICs that fulfill the electrical specifications of EIA-232-E and CCITT V.28 while operating from a single + 5 V power supply. These transceiver series are high performance and low power consumption devices that are equipped with standby and output enable function. A voltage doubler and inverter convert the + 5 V to 10 V. This is accomplished through an on-board 20 kHz oscillator and four inexpensive external electrolytic capacitors. The MC145705 is composed of two drivers and three receivers, the MC145706 has three drivers and two receivers, and the MC145707 has three drivers and three receivers. These drivers and receivers are virtually identical to those of the MC145407. Available Driver/Receiver Combinations
Device MC145705 MC145706 MC145707 Drivers 2 3 3 Receivers 3 2 3 No. of Pins
20 1
DW SUFFIX SOG PACKAGE CASE 751D
24 1
P SUFFIX PLASTIC DIP CASE 724
24
20 20 24
DW SUFFIX SOG PACKAGE CASE 751E
1
ORDERING INFORMATION
MC145705P MC145706P MC145707P MC145705DW MC145706DW MC145707DW Plastic DIP Plastic DIP Plastic DIP SOG Package SOG Package SOG Package
Drivers: * 7.5 Output Swing * 300 Power-Off Impedance * Output Current Limiting * TTL and CMOS Compatible Inputs * Three-State Outputs During Standby Mode * Hold Output OFF (MARK) State by TxEN Pin Receivers: * 25 V Input Range * 3 to 7 k Input Impedance * 0.8 V Hysteresis for Enhanced Noise Immunity * Three-State Outputs During Standby Mode Charge Pumps: * + 5 to 10 V Dual Charge Pump Architecture * Supply Outputs Capable of Driving Three Drivers on the MC145403/06 Simultaneously * Requires Four Inexpensive Electrolytic Capacitors * On-Chip 20 kHz Oscillators
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
REV 1 8/95
(c) Motorola, Inc. 1995 MOTOROLA
MC145705*MC145706*MC145707 1
PIN ASSIGNMENTS MC145705 2 DRIVERS/3 RECEIVERS
C2+ GND C2- VSS STB Rx1 Rx2 Tx1 Rx3 Tx2 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 C1+ VCC C1- VDD TxEN DO1 DO2 DI1 DO3 DI2 C2+ GND C2- VSS STB Tx1 Rx1 Tx2 Rx2 Tx3
MC145706 3 DRIVERS/2 RECEIVERS
1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 C1+ VCC C1- VDD TxEN DI1 DO1 DI2 DO2 DI3
MC145707 3 DRIVERS/3 RECEIVERS
C2+ GND C2- VSS STB NC Rx1 Tx1 Rx2 Tx2 Rx3 Tx3 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 C1+ VCC C1- VDD TxEN NC DO1 DI1 DO2 DI2 DO3 DI3
NC = NO CONNECTION
MC145705*MC145706*MC145707 2
MOTOROLA
FUNCTION DIAGRAM
CHARGE PUMPS
OSC
VCC VOLTAGE DOUBLER VOLTAGE INVERTER
GND
C3
+
+ C4
VDD C1-
C1 + C1+ C2+ +
C2 C2-
VSS
RECEIVER VDD VDD
*
15 k + - 5.4 k VSS
STB
VCC DO
1.0 V
* Protection Circuit
1.8 V
DRIVER VDD STB TxEN VCC VCC
300 Tx
LEVEL SHIFT
+ -
DI 1.4 V
VSS
MOTOROLA
MC145705*MC145706*MC145707 3
MAXIMUM RATINGS (Voltage Polarities Referenced to GND)
Rating DC Supply Voltage Input Voltage DC Current per Pin Power Dissipation Operating Temperature Range Storage Temperature Range Rx1 - Rx3 Inputs DI1 - DI3 Inputs Symbol VCC VIR I PD TA Tstg Value - 0.5 to + 6.0 VSS - 15 to VDD + 15 0.5 to VCC + 15 100 1 - 40 to + 85 - 85 to + 150 Unit V V mA W C C This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, it is recommended that the voltage at the DI and DO pins be constrained to the range GND VDI VDD and GND VDO V CC. Also, the voltage at the Rx pin should be constrained to (VSS - 15 V) V Rx1 - Rx3 (VDD + 15 V), and Tx should be constrained to VSS VTx1 - Tx3 VDD. Unused inputs must always be tied to an appropriate logic voltage level (e.g., GND or VCC for DI, and GND for Rx).
RECOMMENDED OPERATING LIMITS
Parameter Power Supply Operating Temperature Range Symbol VCC TA Min 4.5 - 40 Typ 5 -- Max 5.5 85 Unit V C
DC ELECTRICAL CHARACTERISTICS (Voltage polarities referenced to GND = 0 V; C1 - C4 = 10 F; TA = - 40 to + 85C)
Parameter DC Power Supply Quiescent Supply Current (Output Unloaded, Input Low) Quiescent Supply Current (Standby Mode) (Output Unloaded, Input Open) Control Signal Input Voltage (STB, TxEN) Control Signal Input Current Charge Pumps Output Voltage (C1, C2, C3, C4 = 10 F) Output Voltage (VDD) Logic Low Logic High Logic Low (TxEN) Logic High (STB) Iload = 0 mA Iload = 5 mA Iload = 10 mA Iload = 0 mA Iload = 5 mA Iload = 10 mA VSS Symbol VCC ICC ICC(STB) VIL VIH IIL IIH VDD 8.5 7.5 6.0 - 8.5 - 7.5 - 6.0 10.0 9.5 9.0 - 10.0 - 9.2 - 8.6 11 -- -- - 11 -- -- Min 4.5 -- -- -- VCC - 0.5 -- -- Typ 5 1.7 < 10 -- -- -- -- Max 5.5 3.5 20 0.5 -- - 10 10 Unit V mA A V A V
Output Voltage (VSS)
RECEIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V; VCC = + 5 V 10%; C1 - C4 = 10 F; TA = - 40 to + 85C) Parameter Input Turn-On Threshold (VDO1 - DO3 = VOL) Input Turn-Off Threshold (VDO1 - DO3 = VOH) Input Threshold Hysteresis (Von = Voff) Input Resistance High-Level Output Voltage (DO1 - DO3) VRx1 - Rx3 = - 3 to - 25 V Low-Level Output Voltage (DO1 - DO3) VRx1 - Rx3 = + 3 to + 25 V Iout = - 20 A Iout = - 1 mA Iout = + 20 A Iout = + 1.6 mA Rx1 - Rx3 Rx1 - Rx3 Rx1 - Rx3 Symbol Von Voff Vhys Rin VOH VOL Min 1.35 0.75 0.6 3 VCC - 0.1 VCC - 0.7 -- -- Typ 1.8 1 0.8 5.4 -- 4.3 0.01 0.5 Max 2.35 1.25 -- 7 -- -- 0.1 0.7 Unit V V V k V V
MC145705*MC145706*MC145707 4
MOTOROLA
DRIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V; VCC = + 5 V 10%; C1 - C4 = 10 F; TA = - 40 to + 85C) Parameter Digital Input Voltage Logic Low Logic High Input Current VDI = GND VDI = VCC Output High Voltage (VDI1 - DI3 = Logic Low, RL = 3 k) Output Low Voltage (VDI1 - DI3 = Logic High, RL = 3 k) Off Source Impedance Output Short Circuit Current (VCC = 5.5 V) Tx1 - Tx3 Shorted to GND** Tx1 - Tx3 Shorted to 15 V*** DI1 - DI3 VIL VIH DI1 - DI3 IIL IIH Tx1 - Tx3 Tx1 - Tx6* Tx1 - Tx3 Tx1 - Tx6* Tx1 - Tx3 VOH VOL Zoff ISC -- -- -- -- -- -- 6 5 -6 -5 300 7 -- 7.5 6.5 - 7.5 - 6.5 -- -- 1.0 -- -- -- -- -- 60 100 V V mA -- 2 -- -- 0.8 -- A Symbol Min Typ Max Unit V
* Specifications for a MC14570X powering a MC145406 or MC145403 with three additional drivers/receivers. ** Specification is for one Tx output to be shorted at a time. Should all three driver outputs be shorted simultaneously, device power dissipation limits could be exceeded. *** This condition could exceed package limitations.
SWITCHING CHARACTERISTICS (VCC = + 5 V, 10%; C1 - C4 = 10 F; TA = - 40 to + 85C)
Parameter Symbol Min Typ Max Unit
Drivers
Propagation Delay Time Low-to-High (RL = 3 k, CL = 50 pF or 2500 pF) High-to-Low (RL = 3 k, CL = 50 pF or 2500 pF) Output Slew Rate Minimum Load (RL = 7 k, CL = 0 pF) Maximum Load (RL = 3 k, CL = 2500 pF) Output Disable Time Output Enable Time tDAZ tDZA Tx1 - Tx3 Tx1 - Tx3 tPLH -- tPHL -- SR -- -- -- -- 6 5 4 25 30 -- 10 50 s ms 0.5 1 V/s 0.5 1 s
Receivers
Propagation Delay Time Low-to-High High-to-Low Output Rise Time Output Fall Time Output Disable Time Output Enable Time DO1 - DO3 DO1 - DO3 DO1 - DO3 tPLH -- tPHL tr tf tRAZ tRZA -- -- -- -- -- -- -- 250 40 4 25 1 1 400 100 10 50 ns ns s ms s
TRUTH TABLE Drivers
DI X X H L TxEN X L H H STB H L L L X = Don't Care Tx Z* L L H
Receivers
Rx X H L STB H L L DO Z* L H X = Don't Care
* GND VDO VCC
* VSS VTx VDD
MOTOROLA
MC145705*MC145706*MC145707 5
PIN DESCRIPTIONS
VCC Digital Power Supply This digital supply pin is connected to the logic power supply. This pin should have a 0.33 F capacitor to ground. GND Ground Ground return pin is typically connected to the signal ground pin of the EIA-232-D connector (Pin 7) as well as to the logic power supply ground. VDD Positive Power Supply This is the positive output of the on-chip voltage doubler and the positive power supply input of the driver/receiver sections of the device. This pin requires an external storage capacitor to filter the 50% duty cycle voltage generated by the charge pump. VSS Negative Power Supply This is the negative output of the on-chip voltage doubler/ inverter and the negative power supply input of the driver/ receiver sections of the device. This pin requires an external storage capacitor to filter the 50% duty cycle voltage generated by the charge pump. TxEN Output Enable This is the driver output enable pin. When this pin is in logic low level, the condition of the driver outputs (Tx1 - Tx3) are in keep OFF (mark) state. STB Standby The device enters the standby mode while this pin is connected to the logic high level. During the standby mode, driver and receiver output pins become high impedance
state. In this condition, supply current ICC is below 10 A (Typ) and can be operated with low current consumption. C2+, C2-, C1+, C1- Voltage Doubler and Inverter These are the connections to the internal voltage doubler and inverter, which generate the VDD and VSS voltages. Rx1, Rx2 (Rx3) Receive Data Input These are the EIA-232-E receive signal inputs. A voltage between + 3 and + 25 V is decoded as a space, and causes the corresponding DO pin to swing to ground (0 V). A voltage between - 3 and - 25 V is decoded as a mark, and causes the DO pin to swing up to VCC. DO1, DO2 (DO3) Data Output These are the receiver digital output pins, which swing from VCC to GND. Each output pin is capable of driving one LSTTL input load. Output level of these pins is high impedance while in standby mode. DI1, DI2 (DI3) Data Input These are the high impedance digital input pins to the drivers. Input voltage levels on these pins must be between VCC and GND. The level of these input pins are TTL/CMOS compatible. Tx1, Tx2 (Tx3) Transmit Data Output These are the EIA-232-E transmit signal output pins, which swing toward VDD and VSS. A logic 1 at a DI input causes the corresponding Tx output to swing toward VSS. The actual levels and slew rate achieved will depend on the output loading (RL/CL). The minimum output impedance is 300 when turned off.
SWITCHING CHARACTERISTICS
DRIVER DI1 - DI3 (INPUT) 50% 0V tf Tx1 - Tx3 (OUTPUT) tPHL RECEIVER Rx1 - Rx3 (INPUT) 50% 0V tPHL 90% 10% tf tr tRAZ tPLH VOH VOL DO1 - DO3 (OUTPUT) 10% tRZA 90% 10% tPLH tDAZ +3V RECEIVER +5V STB (INPUT) + 1.5 V + 1.5 V 0V 90% HIGH Z 10% VOL 90% VOH VOL tr VOH Tx1 - Rx3 (OUTPUT) +5V HIGH Z -5V tDZA -5V VOL +5V +3V DRIVER STB (INPUT) + 1.5 V + 1.5 V 0V VOH +5V
DO1 - DO3 (OUTPUT)
MC145705*MC145706*MC145707 6
MOTOROLA
ESD PROTECTION ESD protection on IC devices that have their pins accessible to the outside world is essential. High static voltages applied to the pins when someone touches them either directly or indirectly can cause damage to gate oxides and transistor junctions by coupling a portion of the energy from the I/O pin to the power supply buses of the IC. This coupling will usually
MMBZ15VDLT1 C2+ GND C2- VSS STB NC Rx1 Tx1 Rx2 Tx2 Rx3 Tx3 1 2 3 4 5 6 7 8 9 10 11 12
occur through the internal ESD protection diodes which are designed to do just that. The key to protecting the IC is to shunt as much of the energy to ground as possible before it enters the IC. The figure below shows a technique which will clamp the ESD voltage at approximately 15 V using the MMBZ15VDLT1. Any residual voltage which appears on the supply pins is shunted to ground through the capacitors C1 and C2.
24 23 22 21 20 19 18 17 16 15 14 13
C1+ VCC C1- VDD TxEN NC DO1 DI1 DO2 DI2 DO3 DI3 0.1 F
MOTOROLA
MC145705*MC145706*MC145707 7
PACKAGE DIMENSIONS
P SUFFIX PLASTIC DIP CASE 738-03 -A20 11 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. DIM A B C D E F G J K L M N INCHES MIN MAX 1.010 1.070 0.240 0.260 0.150 0.180 0.015 0.022 0.050 BSC 0.050 0.070 0.100 BSC 0.008 0.015 0.110 0.140 0.300 BSC 0 15 0.020 0.040 MILLIMETERS MIN MAX 25.66 27.17 6.10 6.60 3.81 4.57 0.39 0.55 1.27 BSC 1.27 1.77 2.54 BSC 0.21 0.38 2.80 3.55 7.62 BSC 0 15 0.51 1.01
B
1 10
C
L
-TSEATING PLANE
K M E G F D 20 PL 0.25 (0.010)
M
N J 20 PL 0.25 (0.010) TA
M
M
TB
M
DW SUFFIX SOG PACKAGE CASE 751D-04 -A-
20 11 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.150 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D F G J K M P R MILLIMETERS MIN MAX 12.65 12.95 7.40 7.60 2.35 2.65 0.35 0.49 0.50 0.90 1.27 BSC 0.25 0.32 0.10 0.25 0_ 7_ 10.05 10.55 0.25 0.75 INCHES MIN MAX 0.499 0.510 0.292 0.299 0.093 0.104 0.014 0.019 0.020 0.035 0.050 BSC 0.010 0.012 0.004 0.009 0_ 7_ 0.395 0.415 0.010 0.029
-B-
1 10
10X
P 0.010 (0.25)
M
B
M
20X
D
M
0.010 (0.25)
TA
S
B
J
S
F R C -T-
18X SEATING PLANE X 45 _
G
K
M
MC145705*MC145706*MC145707 8
MOTOROLA
P SUFFIX PLASTIC DIP CASE 724-03 -A-
24 1 13 NOTES: 1. CHAMFERED CONTOUR OPTIONAL. 2. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 3. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 4. CONTROLLING DIMENSION: INCH.
-B-
12
C -T-
SEATING PLANE
L
K E G F D
24 PL
NOTE 1
N J
24 PL
M
0.25 (0.010)
M
M
TB
M
0.25 (0.010)
TA
M
DIM A B C D E F G J K L M N
INCHES MIN MAX 1.230 1.265 0.250 0.270 0.145 0.175 0.015 0.020 0.050 BSC 0.040 0.060 0.100 BSC 0.007 0.012 0.110 0.140 0.300 BSC 0_ 15_ 0.020 0.040
MILLIMETERS MIN MAX 31.25 32.13 6.35 6.85 3.69 4.44 0.38 0.51 1.27 BSC 1.02 1.52 2.54 BSC 0.18 0.30 2.80 3.55 7.62 BSC 0_ 15_ 0.51 1.01
DW SUFFIX SOG PACKAGE CASE 751E-04 -A-
24 13 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS MIN MAX 15.25 15.54 7.40 7.60 2.35 2.65 0.35 0.49 0.41 0.90 1.27 BSC 0.23 0.32 0.13 0.29 0_ 8_ 10.05 10.55 0.25 0.75 INCHES MIN MAX 0.601 0.612 0.292 0.299 0.093 0.104 0.014 0.019 0.016 0.035 0.050 BSC 0.009 0.013 0.005 0.011 0_ 8_ 0.395 0.415 0.010 0.029
-B-
12X
P 0.010 (0.25)
M
B
M
1
12
24X
D 0.010 (0.25)
M
J TA
S
B
S
F R C -T-
SEATING PLANE X 45 _
M
22X
G
K
DIM A B C D F G J K M P R
MOTOROLA
MC145705*MC145706*MC145707 9
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MC145705*MC145706*MC145707 10
MOTOROLA
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MOTOROLA
MC145705*MC145706*MC145707 11
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
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JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, Toshikatsu Otsuki, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-3521-8315 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298
MC145705*MC145706*MC145707 12
*MC145705/D*
MC145705/D MOTOROLA

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