DS89C387

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SNLS101E –MAY 1995–REVISED APRIL 2013

DS89C387 Twelve Channel CMOS Differential Line Driver

Check for Samples: DS89C387

FEATURES

DESCRIPTION

The DS89C387 is a high speed twelve channel

• Low Power I

: 1.5 mA Maximum

CMOS differential driver that meets the requirements

• Meets TIA/EIA-422-B (RS-422)

of TIA/EIA-422-B. The DS89C387 features a low I

• Ensured AC Parameters:

specification of 1.5 mA maximum, which makes it

ideal for battery powered and power conscious

– Maximum Driver Skew −3 ns

applications. The device replaces three DS34C87s

– Maximum Transition Time −10 ns

and offers a PC board space savings up to 30%. The

• Available in SSOP Packaging:

twelve channel driver is available in a SSOP

package. The device is ideal for wide parallel bus

– Requires 30% Less PCB Space than 3

applications.

DS34C87TMs

Each TRI-STATE enable (EN) allows the driver

outputs to be active or in a HI-impedance off state.

Each enable is common to only two drivers for

flexibility and control. The drivers may be disabled to

turn off load current and to save power when data is

not being transmitted.

The driver's input (DI) is compatible with both TTL

and CMOS signal levels.

Connection Diagrams

1/6 of package

Figure 2. Functional Diagram

Truth Table

Enable Input Outputs

EN DI DO DO*

L X Z Z

H H H L

H L L H

Figure 1. 48-Pin SSOP Package

See Package Number DL0048A

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

DS89C387

SNLS101E –MAY 1995–REVISED APRIL 2013

www.ti.com

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Absolute Maximum Ratings

(1)(2)(3)

Supply Voltage (V

) −0.5 to 7.0V

DC Voltage (V

) −1.5 to V

+1.5V

DC Output Voltage (V

OUT

) −0.5 to 7V

Clamp Diode Current (I

, I

) ±20 mA

DC Output Current, per pin (I

OUT

) ±150 mA

DC V

or GND Current (I

) ±500 mA

Storage Temperature Range (T

STG

) −65°C to +150°C

Junction Temperature +150°C

Maximum Power Dissipation (P

) @ 25°C

(4)

SSOP Package 1359 mW

Thermal Resistance

81.7°C/W

31.7°C/W

Lead Temperature (T

)

(Soldering 4 sec.) 260°C

This device does not meet 2000V ESD rating.

(5)

(1) Unless otherwise specified, all voltages are referenced to ground. All currents into device pins are positive; all currents out of device

pins are negative.

(2) Absolute Maximum Ratings are those values beyond which the safety of the device cannot be specified. They are not meant to imply

that the device should be operated at these limits. The table of “Electrical Characteristics” provide conditions for actual device operation.

(3) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(4) Ratings apply to ambient temperature at 25°C. Above this temperature derate SSOP (MEA) Package 10.9 mW/°C.

(5) ESD Rating: HBM (1.5 kΩ, 100 pF) Inputs ≥ 1500V Outputs ≥ 1000V EIAJ (0Ω, 200 pF) All Pins ≥ 350V

Operating Conditions

Min Max Units

Supply Voltage (V

) 4.50 5.50 V

DC Input or Output Voltage (V

, V

OUT

) 0 V

Operating Temperature Range (T

)

DS89C387T −40 +85 °C

Input Rise or Fall Times (t

, t

) 500 ns

DC Electrical Characteristics

(1)(2)

= 5V ±10% (unless otherwise specified)

Parameter Test Conditions Min Typ Max Units

High Level Input 2.0 V

Voltage

Low Level Input GND 0.8 V

Voltage

High Level Output V

= V

or V

, 2.5 3.4 V

Voltage I

OUT

= −20 mA

Low Level Output V

= V

or V

, 0.3 0.5 V

Voltage I

OUT

= 48 mA

(1) Unless otherwise specified, all voltages are referenced to ground. All currents into device pins are positive; all currents out of device

pins are negative.

(2) Unless otherwise specified, min/max limits apply across the −40°C to 85°C temperature range. All typicals are given for V

= 5V and

= 25°C.

Product Folder Links: DS89C387

DS89C387

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SNLS101E –MAY 1995–REVISED APRIL 2013

DC Electrical Characteristics

(1)(2)

(continued)

= 5V ±10% (unless otherwise specified)

Parameter Test Conditions Min Typ Max Units

Differential Output R

= 100Ω 2.0 3.1 V

Voltage See

(3)

|–|V

| Difference In R

= 100Ω 0.4 V

Differential Output See

(3)

Common Mode R

= 100Ω 2.0 3.0 V

Output Voltage See

(3)

–V

| Difference In R

= 100Ω 0.4 V

Common Mode Output See

(3)

Input Current V

= V

, GND, V

, or V

±1.0 μA

Quiescent Supply I

OUT

= 0 μA, 600 1500 μA

Current V

= V

or GND

= 2.4V or 0.5V

(4)

0.8 2.0 mA

TRI-STATE Output V

OUT

= V

or GND ±0.5 ±5.0 μA

Leakage Current Control = V

Output Short V

= V

or GND −30 −115 −150 mA

Circuit Current See

(3)

and

(5)

OFF

Power Off Output V

= 0V V

OUT

= 6V 100 μA

Leakage Current See

(6)

OUT

= −0.25V −100 μA

(3) See TIA/EIA-422-B for exact test conditions.

(4) Measured per input. All other inputs at V

or GND.

(5) This is the current sourced when a high output is shorted to ground. Only one output at a time should be shorted.

(6) See TIA/EIA-422-B for exact test conditions.

Switching Characteristics

(1)

= 5V ±10%, t

, t

≤ 6 ns (Figure 3, Figure 4, Figure 5, and Figure 6)

Parameter Test Conditions Min Typ Max Units

PLH

, t

PHL

Propagation Delay S1 Open 2 6 11 ns

Input to Output

Skew See

(2)

S1 Open 0 0.5 3 ns

TLH

, t

THL

Differential Output Rise S1 Open 6 10 ns

And Fall Times

PZH

Output Enable Time S1 Closed 12 25 ns

PZL

Output Enable Time S1 Closed 13 26 ns

PHZ

Output Disable Time

(3)

S1 Closed 4 8 ns

PLZ

Output Disable Time

(3)

S1 Closed 6 12 ns

Power Dissipation 100 pF

Capacitance

(4)

Input Capacitance 6 pF

(1) Unless otherwise specified, min/max limits apply across the −40°C to 85°C temperature range. All typicals are given for V

= 5V and

= 25°C.

(2) Skew is defined as the difference in propagation delays between complementary outputs at the crossing point.

(3) Output disable time is the delay from the control input being switched to the output transistors turning off. The actual disable times are

less than indicated due to the delay added by the RC time constant of the load.

(4) C

determines the no load dynamic power consumption, P

= C

CC f + I

, and the no load dynamic current consumption, I

= C

f + I

Product Folder Links: DS89C387

Part #	DS89C387TMEA
Description	TWELVE CHANNEL CMOS DIFFERENTIAL LINE DR - Rail/Tube
Category	IC
Availability	Out of Stock
Qty	0

DS89C387TMEA

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