MC14539B 查看數據表（PDF） - Motorola => Freescale
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MC14539B Datasheet PDF : 6 Pages
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ÎÎÎÎSÎÎÎÎWIÎÎÎÎTCHÎÎÎÎINGÎÎÎÎCHÎÎÎÎARÎÎÎÎAChCaÎÎÎÎTrEacRtÎÎÎÎeISriTsÎÎÎÎtIiCcSÎÎÎÎ* (CÎÎÎÎL=5ÎÎÎÎ0pFÎÎÎÎ,TAÎÎÎÎ=2ÎÎÎÎ5_CÎÎÎÎ)SymÎÎÎÎbolÎÎÎÎÎÎÎÎVÎÎÎÎDDÎÎÎÎÎÎÎÎÎÎÎÎMinÎÎÎÎÎÎÎÎTÎÎÎÎypÎÎÎÎ# ÎÎÎÎÎÎÎÎMaxÎÎÎÎÎÎÎÎUÎÎÎÎnitÎÎÎÎ
Output Rise and Fall Time
tTLH, tTHL = (1.5 ns/pF) CL + 25 ns
tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns
tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns
tTLH,
ns
tTHL
5.0
—
100
200
10
—
50
100
15
—
40
80
Propagation Delay Time
X, Y Input to Output
tPLH, tPHL = (1.7 ns/pF) CL + 125 ns
tPLH, tPHL = (0.66 ns/pF) CL + 57 ns
tPLH, tPHL = (0.55 ns/pF) CL + 45 ns
tPLH,
ns
tPHL
5.0
—
210
420
10
—
90
180
15
—
70
140
A Input to Output
tPLH = (1.7 ns/pF) CL + 140 ns
tPLH = (0.66 ns/pF) CL + 77 ns
tPLH = (0.5 ns/pF) CL + 60 ns
tPLH
ns
5.0
—
225
450
10
—
110
220
15
—
85
170
tPHL = (1.7 ns/pF) CL + 160 ns
tPHL = (0.66 ns/pF) CL + 82 ns
tPHL = (0.5 ns/pF) CL + 65 ns
tPHL
5.0
—
245
490
ns
10
—
115
230
15
—
90
180
Strobe Input to Output
tPLH, tPHL = (1.7 ns/pF) CL + 60 ns
tPLH, tPHL = (0.66 ns/pF) CL + 42 ns
tPLH, tPHL = (0.5 ns/pF) CL + 35 ns
tPLH,
ns
tPHL
5.0
—
145
290
10
—
75
150
15
—
60
120
* 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.
VDD
PULSE
GENERATOR
A
B
ST
Z
X0
X1
X2
X3
ST′
Y0
Y1
W
Y2
Y3
VSS
20 ns
INPUT
CL
OUTPUT
(TEST 1)
tPLH
OUTPUT
(TESTS 2 AND 3)
tPHL
20 ns
tTLH
tTHL
tPHL
tTHL
tTLH
tPLH
INPUT CONNECTIONS FOR tTLH, tTHL, tPHL, tPLH
Test
Strobe
A
1
Gnd
Gnd
2
P.G.
Gnd
3
Gnd
P.G.
X0
P.G.
VDD
VDD
Figure 1. AC Test Circuit and Waveforms
MOTOROLA CMOS LOGIC DATA
MC14539B
3
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