MOTOROLA MC10ELT20, MC100ELT20 Technical data

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

TTL to Differential PECL	MC10ELT20
Translator	MC100ELT20

The MC10ELT/100ELT20 is a TTL to differential PECL translator. Because PECL (Positive ECL) levels are used only +5V and ground are required. The small outline 8-lead SOIC package and the single gate of the ELT20 makes it ideal for those applications where space, performance and low power are at a premium. Because the mature MOSAIC 1.5 process is used, low cost can be added to the list of features.

The ELT20 is available in both ECL standards: the 10ELT is compatible with positive MECL 10H logic levels while the 100ELT is compatible with positive ECL 100K logic levels.

•1.5ns Typical Propagation Delay

•Differential PECL Outputs

•Small Outline SOIC Package

•PNP TTL Inputs for Minimal Loading

•Flow Through Pinouts

LOGIC DIAGRAM AND PINOUT ASSIGNMENT

NC	1		8	VCC
Q	2	TTL	7	D0
		PECL
Q	3		6	NC
NC	4		5	GND

8

1

D SUFFIX

PLASTIC SOIC PACKAGE

CASE 751-05

		PIN DESCRIPTION
	PIN		FUNCTION
	Q		Diff PECL Outputs
	D		TTL Input
	VCC		+5.0V Supply
	GND		Ground

1/95

Motorola, Inc. 1996

REV 2

MC10ELT20 MC100ELT20

MAXIMUM RATINGS*

Symbol	Parameter		Value	Unit
VCC	DC Supply Voltage (Referenced to GND)		7.0	V
VIN	Input Voltage		0 to VCC	V
IOUT	Current Applied to Output in Low Output State	Continuous	50	mA
		Surge	100
TA	Operating Temperature Range (In Free-Air)		±40 to 85	°C
TSTG	Storage Temperature Range		±55 to +150	°C

*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions.

TTL INPUT DC CHARACTERISTICS (VCC = 4.75V to 5.25V; TA = ±40°C to 85°C)

Symbol	Characteristic	Min	Typ	Max	Unit	Condition
IIH	Input HIGH Current			20	μA	VIN = 2.7V
IIHH	Input HIGH Current			100	μA	VIN = 7.0V
IIL	Input LOW Current			±0.6	mA	VIN = 0.5V
VIK				±1.2	V	IIN = ±18mA
VIH	Input HIGH Voltage	2.0			V
VIL	Input LOW Voltage			0.8	V

PECL OUTPUT DC CHARACTERISTICS (VCC = 4.75V to 5.25V; TA = ±40°C to 85°C)

			±40°C		0°C				25°C		85°C
Symbol	Characteristic		Min	Max	Min		Max	Min	Typ	Max	Min	Max	Unit	Condition
VOH	Output HIGH	10ELT1	3.920	4.11	3.980		4.16	4.020	4.10	4.19	4.080	4.27	V	VCC = 5.0V
	Voltage	100ELT1	3.915	4.12	3.975		4.12	3.975	4.05	4.12	3.975	4.12
V	Output LOW	10ELT1	3.05	3.350	3.05		3.37	3.05	3.25	3.37	3.05	3.40	V	V	CC	= 5.0V
OL	Voltage	100ELT1	3.17	3.445	3.19		3.38	3.19	3.30	3.38	3.19	3.35
ICC	Power Supply Current			16			16			16		16	mA

1. Levels will vary 1:1 with VCC.

AC CHARACTERISTICS (VCC = 4.75V to 5.25V; TA = ±40°C to 85°C)

		±40°C			0°C			25°C		85°C
Symbol	Characteristic	Min	Max	Min		Max	Min	Typ	Max	Min	Max	Unit	Condition
t	Propagation Delay1	0.6	1.2	0.65		1.45	0.9	1.2	1.5	0.6	1.35	ns
PLH
tPHL	Propagation Delay1	0.4	1.0	0.45		1.05	0.5	0.8	1.1	0.7	1.30	ns
tr/tf	Output Rise/Fall Time	0.15	1.5	0.15		1.5	0.15		1.5	0.15	1.5	ns	20±80%
fMAX	Maximum Input	100		100			100			100		MHz
	Frequency

1. Specifications for standard TTL input signal.

MOTOROLA

3±2