MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

2–57

REV 6

9/96

PECL* to TTL Translator

(+5 Vdc Power Supply Only)

The MC10H350 is a member of Motorola’s 10H family of high performance

ECL logic. It consists of 4 translators with differential inputs and TTL outputs.

The 3–state outputs can be disabled by applying a HIGH TTL logic level on the

common OE input.

The MC10H350 is designed to be used primarily in systems incorporating

both ECL and TTL logic operating off a common power supply. The separate

VCC power pins are not connected internally and thus isolate the noisy TTL VCC

runs from the relatively quiet ECL VCC runs on the printed circuit board. The

differential inputs allow the H350 to be used as an inverting or noninverting

translator, or a differential line receiver. The H350 can also drive CMOS with the

addition of a pullup resistor.

• Propagation Delay, 3.5 ns Typical

• MECL 10K–Compatible

MAXIMUM RATINGS

Characteristic

Symbol

Rating

Unit

Power Supply (VEE = Gnd)

VCC

7.0

Vdc

Operating Temperature Range

TA

0 to +75

°C

Storage Temperature Range — Plastic

— Ceramic

Tstg

–55 to +150

–55 to +165

°C

°C

ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ±5%) (See Note 1)

TA = 0°C to 75°C

Characteristic

Symbol

Min

Max

Unit

Power Supply Current

TTL

ECL

ICC

—

—

20

12

mA

Input Current High

Pin 9

Others

IIH

IINH

—

—

20

50

µA

Input Current Low

Pin 9

Others

IIL

IINL

—

—

–0.6

50

mA

µA

Input Voltage High

Pin 9

VIH

2.0

—

Vdc

Input Voltage Low

Pin 9

VIL

—

0.8

Vdc

Differential Input Voltage (1)

Pins 3–6, 11–14 (1)

VDIFF

350

—

mV

Voltage Common Mode

Pins 3–6, 11–14

VCM

2.8

VCC

Vdc

Output Voltage High

IOH = 3.0 mA

VOH

2.7

—

Vdc

Output Voltage Low

IOL = 20 mA

VOL

—

0.5

Vdc

Short Circuit Current

VOUT = 0 V

IOS

–60

–150

mA

Output Disable Current High

VOUT = 2.7 V

IOZH

—

50

µA

Output Disable Current Low

VOUT = 0.5 V

IOZL

—

–50

µA

(1) Common mode input voltage to pins 3–4, 5–6, 11–12, 13–14 must be between the values of 2.8

V and 5.0 V. This common mode input voltage range includes the differential input swing.

(2) For single ended use, apply 3.75 V (VBB) to either input depending on output polarity required.

Signal level range to other input is 3.3 V to 4.2 V.

(3) Any unused gates should have the inverting inputs tied to VCC and the non–inverting inputs tied

to ground to prevent output glitching.

(4) 1.0 V to 2.0 V w/50 pF into 500 ohms.

*Positive Emitter Coupled Logic

LOGIC DIAGRAM

DIP

PIN ASSIGNMENT

ECL VCC

AOUT

AIN

AIN

BIN

BIN

BOUT

GND

TTL VCC

COUT

CIN

CIN

DIN

DIN

DOUT

OE

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

VCC (+5.0 VDC) = PINS 1 AND 16

GND = PIN 8

15

14

13

10

12

11

7

6

5

2

4

3

9

MC10H350

L SUFFIX

CERAMIC PACKAGE

CASE 620–10

P SUFFIX

PLASTIC PACKAGE

CASE 648–08

FN SUFFIX

PLCC

CASE 775–02

Pin assignment is for Dual–in–Line Package.

For PLCC pin assignment, see the Pin Conversion

Tables on page 6–11 of the Motorola MECL Data

Book (DL122/D).