MC10164

MOTOROLA

MECL Data

DL122 — Rev 6

3–84

FIGURE 1 — 1–OF–64 LINE MULTIPLEXER

The Bit chosen is dependent on six–bit

code present on inputs 7, 9, 14 of the

MC10161 and the A, B, C inputs of the

MC10164.

Zout

Zout

Zout

Zout

Zout

Zout

AB

C

E

MC10164

AB

C

E

MC10164

Zout

AB

C

E

MC10164

AB

C

E

MC10164

AB

C

E

MC10164

AB

C

E

MC10164

AB

C

E

MC10164

MC10161

Zout

AB C

MSB

LSB

Q7

Q6

Q5

Q4

Q3

Q2

Q1

Q0

14

9

7

E

MC10164

APPLICATION INFORMATION

The MC10164 can be used wherever data multiplexing

or parallel to serial conversion is desirable. Full parallel

gating permits equal delays through any data path. The

output of the MC10164 incorporates a buffer gate with

eight data inputs and an enable. A high level on the enable

forces the output low. The MC10164 can be connected

directly to a data bus, due to its open emitter output and

output enable.

Figure one illustrates how a 1–of–64 line multiplexer

can be built with eight MC10164’s wire ORed at their

outputs and one MC10161 to drive the enables on each

multiplexer, without speed degradation over a single

MC10164 being experienced.