Features: • 1.4 ns Typical Propagation Delay• Maximum Frequency > 275 MHz Typical• 24 mA TTL outputs• Operating Range: VCC = 3.0 V to 3.6 V with GND = 0 V• Open Input Default State• Q Output Will Default LOW with Inputs Open or at GND• The 100 Series Co...
MC100EPT21: Features: • 1.4 ns Typical Propagation Delay• Maximum Frequency > 275 MHz Typical• 24 mA TTL outputs• Operating Range: VCC = 3.0 V to 3.6 V with GND = 0 V• Open Inpu...
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Counter Shift Registers 5V ECL 8-Bit Binary Up Synchronous
Symbol |
Parameter |
Condition 1 |
Condition 2 |
Rating |
Units |
VCC |
Positive Power Supply |
VEE = 0 V |
3.6 |
V | |
VIN |
PECL Input Voltage |
VEE = 0 V |
VI VCC |
0 to 3.8 |
V |
VBB |
VBB Sink/Source |
|
± 0.5 |
V | |
JA |
Thermal Resistance (Junction−to−Ambient) |
0 lfpm |
SO−8 |
190 |
°C/W |
JC |
Thermal Resistance (Junction−to−Case) |
Standard Board |
SO−8 |
41 to 44 |
°C/W |
TA |
Operating Temperature Range |
|
−40 to +85 |
°C | |
Tstg |
Storage Temperature Range |
41 to 44 |
°C | ||
JA |
Thermal Resistance (Junction−to−Ambient) (Note 4) |
0 lfpm |
TSSOP−8 |
185 |
°C/W |
JC |
Thermal Resistance (Junction−to−Case) |
Standard Board |
TSSOP−8 |
41 to 44 |
°C/W |
Tsol |
Wave Solder |
< 3 Sec @ 248°C |
265 |
°C |
The MC100EPT21 is a Differential LVPECL to LVTTL translator. Because LVPECL (Positive ECL) levels are used only +3.3 V and ground are required. The small outline 8−lead SOIC package makes the EPT21 ideal for applications which require the translation of a clock or data signal.
The VBB output allows this MC100EPT21 to be cap coupled in either single−ended or differential input mode. When single−ended cap coupled, VBB output is tied to the D input and D is driven for a non−inverting buffer, or VBB output is tied to the D input and D is driven for an inverting buffer. When cap coupled differentially, VBB output is connected through a resistor to each input pin. If used, the VBB pin should be bypassed to VCC via a 0.01 F capacitor. For additional information see MC100EPT21. For a single−ended direct connection use an external voltage reference source such as a resistor divider. Do not use VBB for a single−ended direct connection or port to another device.