The MC10ELT/100ELT25 is a differential ECL to TTL translator.
Because ECL levels are used a +5V, -5.2V (or -4.5V) and ground are
required. The small outline 8-lead SOIC package and the single gate of
the ELT25 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.
http://onsemi.com
8
1
The V
output allows the ELT25 to also be used in a single-ended
BB
input mode. In this mode the V
SO–8
D SUFFIX
CASE 751
output is tied to the IN input for a
BB
non-inverting buffer or the IN input for an inverting buffer. If used the
pin should be bypassed to ground via a 0.01µF capacitor.
V
BB
The ELT25 is available in both ECL standards: the 10ELT is
MARKING DIAGRAM
compatible with MECL 10H logic levels while the 100ELT is
compatible with ECL 100K logic levels. For further information
regarding modeling, refer to AN1596/D “ECLinPS Lite Translator
ELT Family SPICE I/O Model Kit”.
• 2.6ns Typical Propagation Delay
• Internal Input Resistors: Pulldown on D, Pulldown and Pullup on D
8
1
8
HLT25
ALYW
KLT25
ALYW
1
L = Wafer Lot
Y = Year
H = MC10
K = MC100
• Q Output will default LOW with inputs open or at V
W = Work Week
A = Assembly Location
EE
• Differential ECL Inputs
• Small Outline SOIC Package
• 24mA TTL Outputs
*For additional information, see Application Note
AND8002/D
• Flow Through Pinouts
PIN DESCRIPTION
• Moisture Sensitivity Level 1, Indefinite Time Out of Drypack.
For Additional Information, See Application Note AND8003/D
• Flammability Rating: UL–94 code V–0 @ 1/8”,
Oxygen Index 28 to 34
PIN
FUNCTION
D
Q
Diff ECL Inputs
TTL Output
Positive Supply
Negative Supply
Reference Output
Ground
V
V
V
CC
EE
BB
• Transistor Count: 135 devices
LOGIC DIAGRAM AND PINOUT ASSIGNMENT
GND
V
1
2
8
7
V
CC
EE
TTL
D0
Q0
NC
ORDERING INFORMATION
ECL
Device
Package
SO–8
Shipping
D0
BB
3
4
6
5
MC10ELT25D
98 Units / Rail
2500 Units / Reel
98 Units / Rail
MC10ELT25DR2
MC100ELT25D
MC100ELT25DR2
SO–8
SO–8
V
GND
SO–8
2500 Units / Reel
Semiconductor Components Industries, LLC, 1999
1
Publication Order Number:
February, 2000 – Rev. 3
MC10ELT25/D