MC14512B Motorola, MC14512B Datasheet - Page 3

• Manufacturer Part Number: MC14512B
• Description: 8-Channel Data Selector
• Manufacturer: Motorola

* The formulas given are for the typical characteristics only at 25 _ C.
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
SWITCHING CHARACTERISTICS
GENERATOR
Output Rise and Fall Time
Propagation Delay Time (Figure 2)
Propagation Delay Time (Figure 2)
3–State Output Delay Times (Figure 3)
MC14512B
372
PULSE
t TLH , t THL = (1.5 ns/pF) C L + 25 ns
t TLH , t THL = (0.75 ns/pF) C L + 12.5 ns
t TLH , t THL = (0.55 ns/pF) C L + 9.5 ns
Inhibit, Control, or Data to Z
Inhibit, Control, or Data to Z
“1” or “0” to High Z, and
High Z to “1” or “0”
DISABLE
INHIBIT
A
B
C
X0
X1
X2
X3
X4
X5
X6
X7
Characteristic
Characteristic
V in
V DD
V SS
50%
Figure 1. Power Dissipation Test Circuit and Waveform
Z
CYCLE
DUTY
50%
(C L = 50 pF, T A = 25 _ C, See Figure 1)
A, B, C to Z
C L
Parameter
Inhibit to Z
Figure 2. AC Test Circuit and Waveforms
GENERATOR
A, B, C = V SS , X O = V DD
PULSE
Inh = V SS , X O = V DD
Test Conditions
t PHZ , t PLZ ,
t PZH , t PZL
Symbol
Symbol
t TLH ,
t THL
t PLH
t PHL
DISABLE
INHIBIT
A
B
C
X0
X1
X2
X3
X4
X5
X6
X7
INHIBIT,
A, B, OR C
V SS
V DD
V DD
DATA
5.0
5.0
5.0
5.0
10
15
10
15
10
15
10
15
Z
20 ns
Z
20 ns
Z
I D
t PHL
t PLH
t THL
MOTOROLA CMOS LOGIC DATA
t TLH
C L
Typ #
10%
100
330
125
330
125
50%
10%
50
40
85
85
60
35
30
10%
90%
50%
50%
V DD
90%
90%
All Types
TEST CONDITIONS:
INHIBIT = V SS
A, B, C = V SS
90%
50%
10%
Max
200
100
650
250
170
650
250
170
150
100
80
75
20 ns
20 ns
t PHL
t PLH
t TLH
t THL
Unit
Unit
ns
ns
ns
ns
V DD
V SS
V OH
V OL
V DD
V SS
V OH
V OL