Motorola MC145583DW, MC145583VF Datasheet

MC145583MOTOROLA

1

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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

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

Order this document

by MC145583/D

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SEMICONDUCTOR TECHNICAL DATA

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ORDERING INFORMATION

MC145583DW SOG Package
MC145583VF SSOP

VF SUFFIX

SSOP

CASE 940J

PIN ASSIGNMENT

C5+ 1 C2+28

GND 2 V

CC

27

C5– 3 C2–26

RIMON

4

C1+25

V

SS

5

C1–

24

STB

6

V

DD

23

Rx1

7

DO1

22

Rx2

8

DO2

21

Rx3

9

DO3

20

Tx1

10

DI1

19

Rx4

11

DO4

18

Tx2

12

DI2

17

Rx5

13

DO5

16

Tx3

14

DI3

15

RING

MONITOR

CIRCUIT

(INVERTING)

28

1

28

1

DW SUFFIX

SOG PACKAGE

CASE 751F

 Motorola, Inc. 1996

REV 3
1/96

MC145583 MOTOROLA
2

FUNCTION DIAGRAM

RECEIVER

DRIVER

CHARGE PUMPS

OSC

VOLTAGE

TRIPLER

VOLTAGE

INVERTER

V

SS

V

DD

V

CC

GND

C1

C3 C4

C5

C1– C1+

C5+ C5–

+

+

+

C2

C2– C2+

+

**

–

+

V

DD

V

CC

STB

DO

1.0 V
TURN OFF

1.8 V
TURN ON

15 k

Ω

5.4 k

Ω

*

*Protection Circuit.

**Capacitors C1 and C2 are replaced by a 1 µF capacitor at

VCC = 5.0 V supply.

LEVEL

SHIFTER

STB

DI

1.4 V

–

+

V

CC

300

Ω

Tx

V

DD

V

SS

MC145583MOTOROLA

3

MAXIMUM RATINGS (Voltage polarities referenced to GND)

Rating

Symbol Value Unit

DC Supply Voltage V

CC

– 0.5 to + 6.0 V

Input Voltage Rx1 – Rx5 Inputs

DI1 – DI3 Inputs

V

IR

VSS – 15 to VDD+ 15

– 0.5 to VCC+ 0.5

V

DC Current per Pin I ± 100 mA
Power Dissipation P

D

1 W

Operating Temperature Range T

A

– 40 to + 85 °C

Storage Temperature Range T

stg

– 85 to + 150 °C

RECOMMENDED OPERATING LIMITS

Parameter Symbol Min Typ Max Unit

Power Supply V

CC

VCC*

3.0

4.5

3.3

5.0

3.6

5.5

V

Operating Temperature Range T

A

– 40 — 85 °C

*Capacitors C1 and C2 are replaced by a 1 µF capacitor at VCC = 5 V.

DC ELECTRICAL CHARACTERISTICS (Voltage polarities referenced to GND = 0 V; C1 – C5 = 1 µF; T

A

= 25°C)

Parameter

Symbol Min Typ Max Unit

DC Power Supply V

CC

3.0 3.3 3.6 V

Quiescent Supply Current (Output Unloaded, Input Low) I

CC

— 2.8 6.0 mA

Quiescent Supply Current (Standby Mode; STB = 1, Output Unloaded) I

CC(STB)

— < 5 10 µA

Control Signal Input Voltage (STB) V

IL

V

IH

—

VCC – 0.5

—
—

0.5
—

V

Control Signal Input Current (STB) I

IL

I

IH

—
—

—
—

10
10

µA

Charge Pumps Output Voltage (VCC = 3 V; C1, C2, C3, C4, C5 = 1 µF)

Output Voltage (VDD) I

load

= 0 mA

I

load

= 6 mA

V

DD

8.5

7.5

8.8

7.9

—
—

V

Output Voltage (VSS) I

load

= 0 mA

I

load

= 6 mA

V

SS

—
—

– 8.8
– 7.8

– 8.5
– 7.0

RECEIVER ELECTRICAL SPECIFICATIONS

(Voltage polarities referenced to GND = 0 V; VCC = + 3.3 V ± 10%; C1 – C5 = 1 µF; TA = 25°C)

Parameter

Symbol Min Typ Max Unit

Input Turn–On Threshold (V

DO1 – DO5

= VOL; Rx1 – Rx5) 3.3 V

5.0 V

V

on

1.35

2.00

1.8

2.5

2.35

3.10

V

Input Turn–Off Threshold (V

DO1 – DO5

= VOH; Rx1 – Rx5) 3.3 V

5.0 V

V

off

0.75

1.20

1.0

1.5

1.25

1.80

V

Input Resistance R

in

3 5.4 7 kΩ

High–Level Output Voltage (DO1 – DO5) I

out

= – 20 µA

V

Rx1 – Rx5

= – 3 to – 25 V I

out

= – 1 mA

V

OH

VCC – 0.1
VCC – 0.6

—

2.7

—
—

V

Low–Level Output Voltage (DO1 – DO5) I

out

= + 20 µA

V

Rx1 – Rx5

= + 3 to + 25 V I

out

= + 1.6 mA

V

OL

—
—

0.01

0.5

0.1

0.7

V

Ring Monitor Circuit (Input Threshold) V

TH

— 1.1 — V

High–Level Output Voltage (RIMON) I

out

= – 20 µA

I

out

= – 1 mA

V

OH

VCC – 0.1
VCC – 0.6

—

2.7

—
—

V

Low–Level Output Voltage (RIMON) I

out

= + 20 µA

I

out

= + 1.6 mA

V

OL

—
—

0.01

0.5

0.1

0.7

V

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 ≤ VCC and GND ≤ V

DO

≤ VCC. Also, the voltage at the Rx pin should
be constrained to (VSS – 15 V) ≤ V

Rx1 – Rx5

≤ (VDD + 15 V), and Tx should be constrained
to VSS ≤ V

Tx1 – 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).