MC10125
Quad MECL to TTL Translator
The MC10125 is a quad translator for interfacing data and control
signals between...
MC10125
Quad MECL to TTL Translator
The MC10125 is a quad translator for interfacing data and control
signals between the MECL section and saturated logic sections of
digital systems. The MC10125 incorporates differential inputs and
Schottky TTL “totem pole” outputs. Differential inputs allow for use
as an inverting/ non–inverting translator or as a differential line
receiver. The VBB reference voltage is available on pin 1 for use in single–ended input biasing. The outputs of the MC10125 go to a low
logic level whenever the inputs are left floating.
Power supply requirements are ground, +5.0 Volts and –5.2 Volts.
Propagation delay of the MC10125 is typically 4.5 ns. The MC10125
has fanout of 10 TTL loads. The dc levels are MECL 10,000 in and
Schottky TTL, or TTL out. This device has an input common mode
noise rejection of ± 1.0 Volt.
An advantage of this device is that MECL level information can be
received, via balanced twisted pair lines, in the TTL equipment. This
isolates the MECL logic from the noisy TTL environment. This device
is useful in computers, instrumentation, peripheral controllers, test
equipment and digital communications systems.
PD = 380 mW typ/pkg (No Load) tpd = 4.5 ns typ (50% to + 1.5 Vdc out) tr, tf = 2.5 ns typ (1.0 V to 2.0 V)
LOGIC DIAGRAM
2 3
4
6 7
5 Gnd
= PIN 16
10 11
12 VCC (+5.0Vdc) = PIN 9 VEE (-5.2Vdc) = PIN 8
14 15
13
1
VBB*
* VBB to be used to supply bias to the MC10125 only and bypassed (when used) with...