SEMICONDUCTOR TECHNICAL DATA The MC10ELT/100ELT21 is a differential PECL to TTL 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 ELT21 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 VBB output allows the ELT21 to also be used in a single-ended input mode. In this mode the VBB output is tied to the IN input for a non-inverting buffer or the IN input for an inverting buffer. If used the VBB pin should be bypassed to ground via a 0.01µF capacitor. The ELT21 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. • • • • • 8 1 D SUFFIX PLASTIC SOIC PACKAGE CASE 751-05 3.5ns Typical Propagation Delay Differential PECL Inputs Small Outline SOIC Package 24mA TTL Output Flow Through Pinouts LOGIC DIAGRAM AND PINOUT ASSIGNMENT NC 1 8 VCC PIN DESCRIPTION D0 TTL 2 7 Q0 PIN FUNCTION Q D VCC VBB GND TTL Output Diff PECL Inputs +5.0V Supply Reference Output Ground PECL D0 3 6 NC VBB 4 5 GND 7/96 Motorola, Inc. 1996 3–1 REV 3 MC10ELT21 MC100ELT21 MAXIMUM RATINGS* Symbol Parameter VCC DC Supply Voltage (Referenced to GND) TA Operating Temperature Range (In Free-Air) TSTG Storage Temperature Range Value Unit 7.0 V –40 to 85 °C –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 OUTPUT DC CHARACTERISTICS (VCC = 4.75V to 5.25V; TA = –40°C to 85°C) Symbol Characteristic VOH Output HIGH Voltage VOL Output LOW Voltage ICCH Power Supply Current ICCL Power Supply Current IOS Output Short Circuit Current Min Typ Max Unit 2.4 Condition V IOH = –3.0mA 0.5 V IOL = 24mA 20 29 mA 22 32 mA –60 mA –150 PECL INPUT DC CHARACTERISTICS (VCC = 4.75V to 5.25V; TA = –40°C to 85°C) –40°C Symbol Characteristic Min Max 0°C Min 25°C Max 150 Min Typ Max Min Unit 150 µA Condition Input HIGH Current IIL Input LOW Current VCMR Common Mode Range 2.2 VPP Minimum Peak-to-Peak Input1 200 VIH Input HIGH Voltage 10ELT 100ELT 3.770 3.835 4.110 4.120 3.830 3.835 4.16 4.12 3.870 3.835 4.19 4.12 3.930 3.835 4.265 4.120 V VCC = 5.0V VIL Input LOW Voltage 10ELT 100ELT 3.05 3.19 3.500 3.525 3.05 3.19 3.520 3.525 3.05 3.19 3.520 3.525 3.05 3.19 3.550 3.525 V VCC = 5.0V VBB Reference Output 10ELT 100ELT 3.57 3.62 3.70 3.74 3.62 3.62 3.73 3.74 3.65 3.62 3.75 3.74 3.69 3.62 3.81 3.75 V VCC = 5.0V Condition 0.5 VCC 150 Max IIH 0.5 150 85°C 0.5 2.2 VCC 200 µA 0.5 2.2 VCC 200 2.2 VCC 200 V mV 1. 200mV input guarantees full logic swing at the output. AC CHARACTERISTICS (VCC = 4.75V to 5.25V; TA = –40°C to 85°C) –40°C Symbol Characteristic 0°C 25°C Min Max Min Max Min tPLH Propagation Delay1 2.0 5.5 2.0 5.5 tPHL Propagation Delay1 2.0 5.5 2.0 5.5 MOTOROLA 3–2 Typ 85°C Max Min Max Unit 2.0 5.5 2.0 5.5 ns CL = 20pF 2.0 5.5 2.0 5.5 ns CL = 20pF ECLinPS and ECLinPS Lite DL140 — Rev 3 MC10ELT21 MC100ELT21 OUTLINE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751–05 ISSUE P –A– M 1 4 R 0.25 (0.010) 4X –B– X 45 _ B M 5 P 8 NOTES: 1. DIMENSIONS A AND B ARE DATUMS AND T IS A DATUM SURFACE. 2. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 3. DIMENSIONS ARE IN MILLIMETER. 4. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 5. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 6. DIMENSION D DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. J M_ C F G –T– K SEATING PLANE 8X D 0.25 (0.010) M T B S A S DIM A B C D F G J K M P R MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.18 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. 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