MC14532B Datasheet, PDF (4/12 Pages) Motorola, Inc – 8-BIT PRIORITY ENCODER

MC14532B
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ SWITCHING CHARACTERISTICS ^(7.) (C_L = 50 pF, T_A = 25_C)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Characteristic
Symbol
V_DD
Min
Typ ^(8.)
Max
Unit
Output Rise and Fall Time
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
t_TLH,
ns
t_THL
5.0
—
100
200
10
—
50
100
15
—
40
80
Propagation Delay Time — E_in to E_out
t_PLH, t_PHL = (1.7 ns/pF) C_L + 120 ns
t_PLH, t_PHL = (0.66 ns/pF) C_L + 77 ns
t_PLH, t_PHL = (0.5 ns/pF) C_L + 55 ns
t_PLH,
ns
t_PHL
5.0
—
205
410
10
—
110
220
15
—
80
160
Propagation Delay Time — E_in to GS
t_PLH, t_PHL = (1.7 ns/pF) C_L + 90 ns
t_PLH, t_PHL = (0.66 ns/pF) C_L 57 ns
t_PLH, t_PHL = (0.5 ns/pF) C_L + 40 ns
t_PLH,
ns
t_PHL
5.0
—
175
350
10
—
90
180
15
—
65
130
Propagation Delay Time — E_in to Q_n
t_PLH, t_PHL = (1.7 ns/pF) C_L + 195 ns
t_PLH, t_PHL = (0.66 ns/pF) C_L + 107 ns
t_PLH, t_PHL = (0.5 ns/pF) C_L + 75 ns
t_PHL,
ns
t_PLH
5.0
—
280
560
10
—
140
280
15
—
100
200
Propagation Delay Time — D_n to Q_n
t_PLH, t_PHL = (1.7 ns/pF) C_L + 265 ns
t_PLH, t_PHL = (0.66 ns/pF) C_L + 137 ns
t_PLH, t_PHL = (0.5 ns/pF) C_L + 85 ns
t_PLH,
ns
t_PHL
5.0
—
300
600
10
—
170
340
15
—
110
220
Propagation Delay Time — D_n to GS
t_PLH, t_PHL = (1.7 ns/pF) C_L + 195 ns
t_PLH, t_PHL = (0.66 ns/pF) C_L + 107 ns
t_PLH, t_PHL = (0.5 ns/pF) C_L + 75 ns
t_PLH,
ns
t_PHL
5.0
—
280
560
10
—
140
280
15
—
100
200
7. The formulas given are for the typical characteristics only at 25_C.
8. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
SWITCH
MATRIX
E_in
D0
D1
E_out
D2
Q0
D3
Q1
D4
Q2
D5
GS
D6
D7
V_out
I_D
EXTERNAL
POWER
SUPPLY
Output
Under
Test
E_out
Q0
Q1
Q2
GS
V_GS = V_DD
V_DS = V_out
Sink Current
D0 thru D7 E_in
X
0
X
0
X
0
X
0
X
0
V_GS = – V_DD
V_DS = V_out – V_DD
Source Current
D0 thru D6 D7 E_in
0
01
0
11
0
11
0
11
0
11
Figure 1. Typical Sink and Source
Current Characteristics
500 µF
PULSE
GENERATOR
(f_o)
V_DD
I_D
0.01 µF
E_in
E_out
D0
C_L
D1
Q0
D2
C_L
D3
Q1
D4
C_L
D5
Q2
D6
C_L
D7
GS
V_SS
C_L
Figure 2. Typical Power Dissipation Test Circuit
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