MC14028BCP データシートの表示（PDF） - Motorola => Freescale
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MC14028BCP Datasheet PDF : 7 Pages
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ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ SWITCHING CHARACTERISTICS* (CL = 50 pF, TA = 25_C)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Characteristic
Symbol
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Output Rise and Fall Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH, tTHL = (1.5 ns/pF) CL + 25 ns
tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns
tTLH,
tTHL
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Propagation Delay Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH, tPHL = (1.7 ns/pF) CL + 215 ns
tPLH, tPHL = (0.66 ns/pF) CL + 97 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH, tPHL = (0.5 ns/pF) CL + 65 ns
tPLH,
tPHL
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ * The formulas given are for the typical characteristics only at 25_C.
VDD
5.0
10
15
5.0
10
15
Min
Typ #
Max
Unit
ns
—
100
200
—
50
100
—
40
80
ns
—
300
600
—
130
260
—
90
180
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
Inputs B, C, and D
switching in respect
to a BCD code.
20 ns
INPUT A
10%
90%
50%
20 ns
1/f
VDD
All outputs connected
to respective CL loads.
f in respect to a system
VSS
clock.
Inputs A, B, and D low.
INPUT C
10%
tPLH
20 ns
90%
50%
Q4 10%
90%
tTLH
20 ns
VDD
VSS
tPHL
VOH
50%
VOL
tTHL
Figure 1. Dynamic Signal Waveforms
MOTOROLA CMOS LOGIC DATA
MC14028B
115
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