MC14514B, MC14515B
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ SWITCHING CHARACTERISTICS (Note 5) (CL = 50 pF, TA = 25_C)
All Types
Characteristic
Output Rise Time
tTLH = (3.0 ns/pF) CL + 30 ns
tTLH = (1.5 ns/pF) CL + 15 ns
tTLH = (1.1 ns/pF) CL + 10 ns
Output Fall Time
tTHL = (1.5 ns/pF) CL + 25 ns
tTHL = (0.75 ns/pF) CL + 12.5 ns
tTHL = (0.55 ns/pF) CL + 9.5 ns
Propagation Delay Time; Data, Strobe to S
tPLH, tPHL = (1.7 ns/pF) CL + 465 ns
tPLH, tPHL = (0.86 ns/pF) CL + 192 ns
tPLH, tPHL = (0.5 ns/pF) CL + 125 ns
Inhibit Propagation Delay Times
tPLH, tPHL = (1.7 ns/pF) CL + 315 ns
tPLH, tPHL = (0.66 ns/pF) CL + 117 ns
tPLH, tPHL = (0.5 ns/pF) CL + 75 ns
Setup Time Data to Strobe
Symbol
tTLH
tTHL
tPLH,
tPHL
tPLH,
tPHL
tsu
Typ
VDD
Min (Note 6) Max
Unit
ns
5.0
−
180
360
10
−
90
180
15
−
65
130
ns
5.0
−
100
200
10
−
50
100
15
−
40
80
ns
5.0
−
550
1100
10
−
225
450
15
−
150
300
ns
5.0
−
400
800
10
−
150
300
15
−
100
200
ns
5.0
250
125
−
10
100
50
−
15
75
38
−
Hold Time Strobe to Data
th
5.0
– 20 – 100
−
ns
10
0
– 40
−
15
10
– 30
−
Strobe Pulse Width
tWH
ns
5.0
350
175
−
10
100
50
−
15
75
38
−
5. The formulas given are for the typical characteristics only at 25_C.
6. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
For MC14514B
1. For P−channel: Inhibit = VSS
1. and D1−D4 constitute
1. binary code for “output
1. under test.”
2. For N−channel: Inhibit = VDD
VDD
S0
STROBE S1
S2
INHIBIT
S3
S4
S5
D1
S6
S7
S8
D2
S9
S10
D3
S11
S12
S13
D4
S14
S15
VSS
VDS
For MC14515B
1. For P−channel: Inhibit = VDD
2. For N−channel: Inhibit = VSS
2. and D1−D4 constitute binary
2. code for “output under test.”
ID
EXTERNAL
POWER SUPPLY
Figure 1. Drain Characteristics Test Circuit
http://onsemi.com
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