MC10E171, MC100E171
D1b D1a D2d D2c D2b D2a VCCO
25 24 23 22 21 20 19
SEL1A 26
18 Q2
SEL1B 27
17 Q2
SEL2 28
VEE 1
NC 2
Pinout: 28-Lead PLCC
(Top View)
16 VCC
15 Q1
14 Q1
NC 3
13 VCCO
D0a
2:1
MUX
D0b
SEL
2:1
Q0
D0c
2:1
MUX
MUX
SEL
Q0
D0d
SEL
D1a
2:1
MUX
D1b
SEL
2:1
Q1
MUX
D1c
2:1
MUX
D1d
SEL
SEL
Q1
D1c 4
12 Q0
D2a
2:1
5 6 7 8 9 10 11
MUX
D2b
SEL
2:1
Q2
D1d D0a D0b D0c D0d VCCO Q0
MUX
D2c
2:1
SEL
Q2
* All VCC and VCCO pins are tied together on the die.
Warning: All VCC, VCCO, and VEE pins must be externally
MUX
D2d
SEL
connected to Power Supply to guarantee proper operation.
SEL1A
Figure 1. 28−Lead Pinout Assignment
SEL1B
SEL2
Figure 2. Logic Diagram
Table 1. PIN DESCRIPTION
PIN
FUNCTION
D0x − D2x
SEL1A, SEL1B
ECL Data Inputs
ECL First-stage Select Inputs
SEL2
ECL Second-stage Select Input
Q0 − Q2
Q0 − Q2
VCC, VCCO
VEE
NC
ECL True Output
ECL Inverted Output
Positive Supply
Negative Supply
No Connect
Table 2. FUNCTION TABLE
PIN
STATE
OPERATION
SEL2
H
Output c/d data
SEL1A
H
Input d data
SEL1B
H
Input b data
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