MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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by MC145583/D
MC145583
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3.3 Volt Only
Driver/Receiver with an
Integrated Standby Mode
28
1
DW SUFFIX
SOG PACKAGE
CASE 751F
EIA–232–E and CCITT V.28
The MC145583 is a CMOS transceiver composed of three drivers and five
receivers that fulfills the electrical specifications of EIA–232–E, EIA–562, and
CCITT V.28 while operating from a single + 3.3 or + 5.0 V power supply. This
transceiver is a high–performance, low–power consumption device that is
equipped with a standby function.
A voltage tripler and inverter converts the + 3.3 V to
±
8.8 V, or a voltage
doubler and inverter converts the + 5.0 V to
±
8.8 V. This is accomplished
through an on–chip 40 kHz oscillator and five inexpensive external capacitors.
Drivers:
• ±
5 V Minimum Output Swing at 3.3 or 5.0 V Power Supply
•
300
Ω
Power–Off Impedance
•
Output Current Limiting
•
Three–State Outputs During Standby Mode
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
Ring Monitor Circuit:
•
Invert the Input Level on Rx1 to Logic Output Level on RIMON at Standby
Mode
28
1
VF SUFFIX
SSOP
CASE 940J
ORDERING INFORMATION
MC145583DW
MC145583VF
SOG Package
SSOP
PIN ASSIGNMENT
C5+
GND
C5–
RIMON
VSS
STB
Rx1
Rx2
Rx3
Tx1
Rx4
Tx2
Rx5
Tx3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
RING
MONITOR
CIRCUIT
(INVERTING)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C2+
VCC
C2–
C1+
C1–
VDD
DO1
DO2
DO3
DI1
DO4
DI2
DO5
DI3
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
REV 3
1/96
©
Motorola, Inc. 1996
MOTOROLA
MC145583
1
FUNCTION DIAGRAM
CHARGE PUMPS
OSC
VCC
VOLTAGE
TRIPLER
VOLTAGE
INVERTER
GND
C3
+
C1
+
C4
VDD
C2
C5+
+
C5
C5–
VSS
C1–
C1+
C2–
+
C2+
**
RECEIVER
VDD
*
15 kΩ
+
–
5.4 kΩ
STB
VCC
DO
1.0 V
TURN OFF
* Protection Circuit.
** Capacitors C1 and C2 are replaced by a 1
µF
capacitor at
VCC = 5.0 V supply.
DRIVER
VDD
STB
1.8 V
TURN ON
VCC
300
Ω
Tx
LEVEL
SHIFTER
+
–
DI
1.4 V
VSS
MC145583
2
MOTOROLA
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 – Rx5 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 + 0.5
±
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, precau-
tions must be taken to avoid applications of
any voltage higher than maximum rated volt-
ages 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
≤
VCC and GND
≤
VDO
≤
VCC. Also, the voltage at the Rx pin should
be constrained to (VSS – 15 V)
≤
VRx1 – Rx5
≤
(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).
Min
3.0
4.5
– 40
Typ
3.3
5.0
—
Max
3.6
5.5
85
Unit
V
°C
RECOMMENDED OPERATING LIMITS
Parameter
Power Supply
Operating Temperature Range
* Capacitors C1 and C2 are replaced by a 1
µF
capacitor at VCC = 5 V.
Symbol
VCC
VCC*
TA
DC ELECTRICAL CHARACTERISTICS
(Voltage polarities referenced to GND = 0 V; C1 – C5 = 1
µF;
TA = 25°C)
Parameter
DC Power Supply
Quiescent Supply Current (Output Unloaded, Input Low)
Quiescent Supply Current (Standby Mode; STB = 1, Output Unloaded)
Control Signal Input Voltage (STB)
Control Signal Input Current (STB)
Charge Pumps Output Voltage (VCC = 3 V; C1, C2, C3, C4, C5 = 1
µF)
Output Voltage (VDD)
Iload = 0 mA
Iload = 6 mA
Output Voltage (VSS)
Iload = 0 mA
Iload = 6 mA
Symbol
VCC
ICC
ICC(STB)
VIL
VIH
IIL
IIH
VDD
8.5
7.5
VSS
—
—
8.8
7.9
– 8.8
– 7.8
—
—
– 8.5
– 7.0
Min
3.0
—
—
—
VCC – 0.5
—
—
Typ
3.3
2.8
<5
—
—
—
—
Max
3.6
6.0
10
0.5
—
10
10
Unit
V
mA
µA
V
µA
V
RECEIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V; VCC = + 3.3 V
±
10%; C1 – C5 = 1
µF;
TA = 25°C)
Parameter
Input Turn–On Threshold (VDO1 – DO5 = VOL; Rx1 – Rx5)
Input Turn–Off Threshold (VDO1 – DO5 = VOH; Rx1 – Rx5)
Input Resistance
High–Level Output Voltage (DO1 – DO5)
VRx1 – Rx5 = – 3 to – 25 V
Low–Level Output Voltage (DO1 – DO5)
VRx1 – Rx5 = + 3 to + 25 V
Ring Monitor Circuit (Input Threshold)
High–Level Output Voltage (RIMON)
Low–Level Output Voltage (RIMON)
Iout = – 20
µA
Iout = – 1 mA
Iout = + 20
µA
Iout = + 1.6 mA
Iout = – 20
µA
Iout = – 1 mA
Iout = + 20
µA
Iout = + 1.6 mA
3.3 V
5.0 V
3.3 V
5.0 V
Symbol
Von
Voff
Rin
VOH
VOL
VTH
VOH
VOL
Min
1.35
2.00
0.75
1.20
3
VCC – 0.1
VCC – 0.6
—
—
—
VCC – 0.1
VCC – 0.6
—
—
Typ
1.8
2.5
1.0
1.5
5.4
—
2.7
0.01
0.5
1.1
—
2.7
0.01
0.5
Max
2.35
3.10
1.25
1.80
7
—
—
0.1
0.7
—
—
—
0.1
0.7
Unit
V
V
kΩ
V
V
V
V
V
MOTOROLA
MC145583
3
DRIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V; VCC = + 3.3 V or + 5.0 V
±
10%; C1 – C5 = 1
µF;
TA = 25°C)
Parameter
Digital Input Voltage
Logic Low
Logic High
DI1 – DI3
VIL
VIH
IIL
IIH
VOH
—
1.8
—
—
5.0
8.5
VOL
—
—
VRF
Zoff
ISC
—
—
—
—
—
300
– 7.0
– 8.8
—
—
– 5.0
– 8.5
±
5%
—
±
60
±
100
Ω
mA
—
—
7
—
7.0
8.8
0.7
—
µA
—
±
1.0
V
—
—
V
Symbol
Min
Typ
Max
Unit
V
Digital Input Current
DI1 – DI3
VDI = GND
VDI = VCC
Output High Voltage
Load on All Tx1 – Tx3, RL = 3 kΩ; CP = 2500 pF, VDI1 – DI3 = Logic Low
No Load
Output Low Voltage
Load on All Tx1 – Tx3, RL = 3 kΩ; CP = 2500 pF, VDI1 – DI3 = Logic High
No Load
Ripple (Refer to VDD – VSS Value) ***
Off Source Impedance
Output Short Circuit Current (VCC = 3.3 V or 5.5 V)
Tx1 – Tx3 Shorted to GND*
Tx1 – Tx3 Shorted to
±
15 V**
Tx1 – Tx3
* 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.
*** Ripple VRF would not exceed
±
5% of (VDD – VSS).
SWITCHING CHARACTERISTICS
(VCC = + 3.3 V or + 5 V,
±
10%; C1 – C5 = 1
µF;
TA = 25°C)
Parameter
Symbol
Min
Typ
Max
Unit
Drivers
Propagation Delay Time
Low–to–High
(RL = 3 kΩ, CL = 50 pF or 2500 pF)
High–to–Low
(RL = 3 kΩ, CL = 50 pF or 2500 pF)
Output Slew Rate (Source R = 300
Ω)
Loading: RL = 3 – 7 kΩ; CL = 2500 pF
Output Disable Time*
Output Enable Time*
Tx1 – Tx3
Tx1 – Tx3
tDPLH
—
tDPHL
—
SR
tDAZ
tDZA
±
4
—
—
0.5
—
4
25
1
±
30
10
50
V/µs
µs
ms
0.5
1
µs
Receivers
Propagation Delay Time
Low–to–High
High–to–Low
Output Rise Time
Output Fall Time
Output Disable Time*
Output Enable Time*
* Including the charge pump setup time.
DO1 – DO5
DO1 – DO5
DO1 – DO5
tRPLH
tRPHL
tr
tf
tRAZ
tRZA
—
—
—
—
—
—
—
—
120
40
4
25
1
1
200
100
10
50
ns
ns
µs
ms
µs
TRUTH TABLES
Drivers
DI
X
H
L
STB
H
L
L
Tx
Z*
L
H
X = Don’t Care
Receivers
Rx
X
H
L
STB
H
L
L
DO
Z*
L
H
X = Don’t Care
* VSS
≤
VTx
≤
VDD
* GND
≤
VDO
≤
VCC
MC145583
4
MOTOROLA
PIN DESCRIPTIONS
VCC
Digital Power Supply (Pin 27)
This digital supply pin is connected to the logic power sup-
ply. This pin should have a not less than 0.33
µF
capacitor
GND.
GND
Ground (Pin 2)
Ground return pin is typically connected to the signal
ground pin of the EIA–232–E connector (Pin 7) as well as to
the logic power supply ground.
VDD
Positive Power Supply (Pin 23)
This is the positive output of the on–chip voltage tripler 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 (Pin 5)
This is the negative output of the on–chip voltage tripler/in-
verter and the negative power supply input of the driver/ re-
ceiver sections of the device. This pin requires an external
storage capacitor to filter the 50% duty cycle voltage gener-
ated by the charge pump.
RIMON
Ring Monitor Circuit (Pin 4)
The Ring Monitor Circuit will convert the input level on Rx1
pin at standby mode and output on the RIMON pin.
STB
Standby Mode (Pin 6)
The device enters the standby mode while this pin is con-
nected 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 5
µA
(typ).
C5+, C5–, C2+, C2–, C1+, C1–
Voltage Tripler and Inverter (Pins 1, 3, 28, 26, 25, 24)
These are the connections to the internal voltage tripler
and inverter, which generate the VDD and VSS voltages.
Rx1, Rx2, Rx3, Rx4, Rx5
Receive Data Inputs (Pins 7, 8, 9, 11, 13)
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 GND (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, DO4, DO5
Data Outputs (Pins 22, 21, 20, 18, 16)
These are the receiver digital output pins, which swing
from VCC to GND. Output level of these pins is high imped-
ance while in standby mode.
DI1, DI2, DI3
Data Inputs (Pins 19, 17, 15)
These are the high impedance digital input pins to the
drivers. Input voltage levels on these pins must be between
VCC and GND.
Tx1, Tx2, Tx3
Transmit Data Output (Pins 10, 12, 14)
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
DI1 – DI3
(INPUT)
+3V
50%
0V
tf
Tx1 – Tx3
(OUTPUT
)
tDPHL
RECEIVER
Rx1 – Rx5
(INPUT)
+3V
50%
0V
DO1 – DO5
(OUTPUT)
tRPHL
90%
10%
tf
tr
tRPLH
VOH
VOL
tRAZ
DO1 – DO5
(OUTPUT)
90%
10%
tRZA
HIGH Z
90%
10%
STB (INPUT)
+ 1.5 V
+ 1.5 V
0V
VOH
VOL
90%
10%
tDPLH
RECEIVER
+ 3.3 V
VOL
tr
VOH
Tx1 – Tx3
(OUTPUT)
tDAZ
+5V
–5V
tDZA
HIGH Z
+5V
STB (INPUT)
+ 1.5 V
+ 1.5 V
0V
VOH
DRIVER
+ 3.3 V
–5V V
OL
MOTOROLA
MC145583
5
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