MOTOROLA MC145707DW

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by MC145705/D
SEMICONDUCTOR TECHNICAL DATA
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#
!! " # P SUFFIX
PLASTIC DIP
CASE 738
EIA–232–E and CCITT V.28
20
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.
1
DW SUFFIX
SOG PACKAGE
CASE 751D
20
1
P SUFFIX
PLASTIC DIP
CASE 724
24
1
Available Driver/Receiver Combinations
Device
Drivers
Receivers
No. of Pins
MC145705
2
3
20
MC145706
3
2
20
MC145707
3
3
24
DW SUFFIX
SOG PACKAGE
CASE 751E
24
Drivers:
• ± 7.5 Output Swing
• 300 Ω 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 kΩ 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
1
ORDERING INFORMATION
MC145705P
MC145706P
MC145707P
Plastic DIP
Plastic DIP
Plastic DIP
MC145705DW
MC145706DW
MC145707DW
SOG Package
SOG Package
SOG Package
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

Motorola, Inc. 1995
MOTOROLA
MC145705•MC145706•MC145707
1
PIN ASSIGNMENTS
MC145705
2 DRIVERS/3 RECEIVERS
MC145706
3 DRIVERS/2 RECEIVERS
C2+
1
20
C1+
C2+
1
20
C1+
GND
2
19
VCC
GND
2
19
VCC
C2–
3
18
C1–
C2–
3
18
C1–
VSS
4
17
VDD
VSS
4
17
VDD
STB
5
16
TxEN
STB
5
16
TxEN
Rx1
6
15
DO1
Tx1
6
15
DI1
7
14
DO2
Rx1
7
14
8
13
DI1
Tx2
8
13
DI2
9
12
DO3
Rx2
9
12
DO2
10
11
DI2
Tx3
10
11
DI3
Rx2
Tx1
Rx3
Tx2
DO1
MC145707
3 DRIVERS/3 RECEIVERS
C2+
1
24
C1+
GND
2
23
VCC
C2–
3
22
C1–
VSS
4
21
VDD
STB
5
NC
6
19
7
18
8
17
9
16
DO2
10
15
DI2
11
14
DO3
12
13
Rx1
Tx1
Rx2
Tx2
Rx3
Tx3
20
TxEN
NC
DO1
DI1
DI3
NC = NO CONNECTION
MC145705•MC145706•MC145707
2
MOTOROLA
FUNCTION DIAGRAM
CHARGE PUMPS
OSC
VCC
C3
GND
+
VOLTAGE
DOUBLER
VOLTAGE
INVERTER
C1
C2
VDD
+
C1–
C1+
+
C2+
+
C4
VSS
C2–
RECEIVER
VDD
VDD
*
VCC
STB
15 kΩ
+
–
DO
5.4 kΩ
VSS
1.0 V
1.8 V
* Protection Circuit
DRIVER
VDD
STB
TxEN
VCC
VCC
300 Ω
LEVEL
SHIFT
Tx
+
–
DI
1.4 V
VSS
MOTOROLA
MC145705•MC145706•MC145707
3
MAXIMUM RATINGS (Voltage Polarities Referenced to GND)
Rating
Symbol
Value
Unit
VCC
– 0.5 to + 6.0
V
VIR
VSS – 15 to VDD + 15
0.5 to VCC + 15
V
DC Current per Pin
I
± 100
mA
Power Dissipation
PD
1
W
Operating Temperature Range
TA
– 40 to + 85
°C
Tstg
– 85 to + 150
°C
DC Supply Voltage
Input Voltage
Rx1 – Rx3 Inputs
DI1 – DI3 Inputs
Storage Temperature Range
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
Min
Typ
Max
Unit
VCC
4.5
5
5.5
V
TA
– 40
—
85
°C
DC ELECTRICAL CHARACTERISTICS (Voltage polarities referenced to GND = 0 V; C1 – C4 = 10 µF; TA = – 40 to + 85°C)
Parameter
DC Power Supply
Quiescent Supply Current (Output Unloaded, Input Low)
Control Signal Input Current
Charge Pumps Output Voltage (C1, C2, C3, C4 = 10 µF)
Output Voltage (VDD)
Output Voltage (VSS)
Min
Typ
Max
Unit
VCC
4.5
5
5.5
V
ICC
—
1.7
3.5
mA
ICC(STB)
—
< 10
20
µA
Logic Low
Logic High
VIL
VIH
—
VCC – 0.5
—
—
0.5
—
V
Logic Low (TxEN)
Logic High (STB)
IIL
IIH
—
—
—
—
– 10
10
µA
8.5
7.5
6.0
10.0
9.5
9.0
11
—
—
– 8.5
– 7.5
– 6.0
– 10.0
– 9.2
– 8.6
– 11
—
—
Quiescent Supply Current (Standby Mode) (Output Unloaded, Input Open)
Control Signal Input Voltage (STB, TxEN)
Symbol
VDD
Iload = 0 mA
Iload = 5 mA
Iload = 10 mA
Iload = 0 mA
Iload = 5 mA
Iload = 10 mA
VSS
V
RECEIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V; VCC = + 5 V ± 10%; C1 – C4 = 10 µF; TA = – 40 to + 85°C)
Parameter
Symbol
Min
Typ
Max
Unit
Input Turn–On Threshold (VDO1 – DO3 = VOL)
Rx1 – Rx3
Von
1.35
1.8
2.35
V
Input Turn–Off Threshold (VDO1 – DO3 = VOH)
Rx1 – Rx3
Voff
0.75
1
1.25
V
Input Threshold Hysteresis (Von = Voff)
Rx1 – Rx3
Vhys
0.6
0.8
—
V
Rin
3
5.4
7
kΩ
Input Resistance
High–Level Output Voltage (DO1 – DO3)
VRx1 – Rx3 = – 3 to – 25 V
Iout = – 20 µA
Iout = – 1 mA
VOH
VCC – 0.1
VCC – 0.7
—
4.3
—
—
V
Low–Level Output Voltage (DO1 – DO3)
VRx1 – Rx3 = + 3 to + 25 V
Iout = + 20 µA
Iout = + 1.6 mA
VOL
—
—
0.01
0.5
0.1
0.7
V
MC145705•MC145706•MC145707
4
MOTOROLA
DRIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V; VCC = + 5 V ± 10%; C1 – C4 = 10 µF; TA = – 40 to + 85°C)
Parameter
Digital Input Voltage
Logic Low
Logic High
DI1 – DI3
Input Current
VDI = GND
VDI = VCC
DI1 – DI3
Symbol
Min
Typ
Max
VIL
VIH
—
2
—
—
0.8
—
IIL
IIH
—
—
7
—
—
± 1.0
Unit
V
µA
Output High Voltage
(VDI1 – DI3 = Logic Low, RL = 3 kΩ)
Tx1 – Tx3
Tx1 – Tx6*
VOH
6
5
7.5
6.5
—
—
V
Output Low Voltage
(VDI1 – DI3 = Logic High, RL = 3 kΩ)
Tx1 – Tx3
Tx1 – Tx6*
VOL
–6
–5
– 7.5
– 6.5
—
—
V
Tx1 – Tx3
Zoff
300
—
—
Ω
—
—
—
—
± 60
± 100
Off Source Impedance
Output Short Circuit Current (VCC = 5.5 V)
Tx1 – Tx3 Shorted to GND**
Tx1 – Tx3 Shorted to ± 15 V***
ISC
mA
* 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 µF; TA = – 40 to + 85°C)
Symbol
Parameter
Min
Typ
Max
Unit
Drivers
Propagation Delay Time
Low–to–High
(RL = 3 kΩ, CL = 50 pF or 2500 pF)
Tx1 – Tx3
µs
tPLH
High–to–Low
(RL = 3 kΩ, CL = 50 pF or 2500 pF)
—
0.5
1
—
0.5
1
—
±6
± 30
tPHL
Output Slew Rate
Minimum Load (RL = 7 kΩ, CL = 0 pF)
Tx1 – Tx3
SR
V/µs
—
±5
—
Output Disable Time
tDAZ
—
4
10
µs
Output Enable Time
tDZA
—
25
50
ms
—
—
1
tPHL
—
—
1
Maximum Load (RL = 3 kΩ, CL = 2500 pF)
Receivers
Propagation Delay Time
Low–to–High
DO1 – DO3
µs
tPLH
High–to–Low
Output Rise Time
DO1 – DO3
tr
—
250
400
ns
Output Fall Time
DO1 – DO3
tf
—
40
100
ns
Output Disable Time
tRAZ
—
4
10
µs
Output Enable Time
tRZA
—
25
50
ms
TRUTH TABLE
Drivers
Receivers
DI
TxEN
STB
Tx
Rx
STB
DO
X
X
H
Z*
X
H
Z*
X
L
L
L
H
L
L
H
H
L
L
L
L
H
L
H
L
H
* VSS ≤ VTx ≤ VDD
MOTOROLA
* GND ≤ VDO ≤ VCC
X = Don’t Care
X = Don’t Care
MC145705•MC145706•MC145707
5
state. In this condition, supply current ICC is below 10 µA
(Typ) and can be operated with low current consumption.
PIN DESCRIPTIONS
VCC
Digital Power Supply
This digital supply pin is connected to the logic power supply. This pin should have a 0.33 µF 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.
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
TxEN
Output Enable
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.
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.
Tx1, Tx2 (Tx3)
Transmit Data Output
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
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 Ω when turned off.
SWITCHING CHARACTERISTICS
DRIVER
+3V
DI1 – DI3
(INPUT)
DRIVER
+5V
+ 1.5 V
STB (INPUT)
50%
0V
0V
tf
Tx1 – Tx3
(OUTPUT)
tr
VOH
90%
10%
tPHL
VOL
–5V
DO1 – DO3
(OUTPUT)
+3V
RECEIVER
0V
STB (INPUT)
VOH
HIGH Z
tPLH
RECEIVER
+5V
+5V
Tx1 – Rx3
(OUTPUT)
tDAZ
Rx1 – Rx3
(INPUT)
+ 1.5 V
–5V
VOL
tDZA
+5V
50%
tPHL
90%
tPLH
10%
tf
+ 1.5 V
0V
VOH
VOL
90%
DO1 – DO3
(OUTPUT)
90%
VOH
HIGH Z
tr
10%
tRAZ
MC145705•MC145706•MC145707
6
+ 1.5 V
10%
VOL
tRZA
MOTOROLA
ESD PROTECTION
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.
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
MOTOROLA
C1+
1
24
2
23
3
22
4
21
VDD
20
TxEN
5
VCC
C1–
0.1 µF
NC
6
19
Rx1
7
18
DO1
Tx1
8
17
DI1
Rx2
9
16
DO2
Tx2
10
15
DI2
Rx3
11
14
DO3
Tx3
12
13
DI3
MC145705•MC145706•MC145707
7
PACKAGE DIMENSIONS
P SUFFIX
PLASTIC DIP
CASE 738–03
-A20
11
1
10
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.
B
C
-T-
L
DIM
A
B
C
D
E
F
G
J
K
L
M
N
K
SEATING
PLANE
M
E
G
N
F
J 20 PL
0.25 (0.010)
D 20 PL
0.25 (0.010)
T A
M
M
T B
M
M
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
DW SUFFIX
SOG PACKAGE
CASE 751D–04
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.
–A–
20
11
–B–
10X
P
0.010 (0.25)
1
M
B
M
10
20X
D
0.010 (0.25)
M
T A
B
S
J
S
F
R
C
–T–
18X
G
K
MC145705•MC145706•MC145707
8
SEATING
PLANE
X 45 _
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
M
MOTOROLA
P SUFFIX
PLASTIC DIP
CASE 724–03
–A–
24
13
1
12
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–
L
C
–T–
NOTE 1
K
SEATING
PLANE
N
E
G
M
J
F
D
DIM
A
B
C
D
E
F
G
J
K
L
M
N
24 PL
0.25 (0.010)
24 PL
0.25 (0.010)
M
T A
M
T B
M
M
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
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.
13
–B–
12X
P
0.010 (0.25)
1
M
B
M
12
24X
D
J
0.010 (0.25)
M
T A
S
B
S
F
R
C
–T–
SEATING
PLANE
MOTOROLA
M
22X
G
K
X 45 _
DIM
A
B
C
D
F
G
J
K
M
P
R
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
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
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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.
How to reach us:
USA/EUROPE: Motorola Literature Distribution;
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447
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
MFAX: [email protected] – TOUCHTONE (602) 244–6609
INTERNET: http://Design–NET.com
HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
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