MC75172B_06 Datasheet, PDF (3/13 Pages) ON Semiconductor – Quad EIA−485 Line Drivers with Three−State Outputs

MC75172B, MC75174B
TIMING CHARACTERISTICS (T_A = 25°C, V_CC = 5.0 V)
Characteristics
Propagation Delay − Input to Single−ended Output (Figure 3)
Output Low−to−High
Output High−to−Low
Propagation Delay − Input to Differential Output (Figure 4)
Input Low−to−High
Input High−to−Low
Differential Output Transition Time (Figure 4)
Skew Timing
⎜t_PLHD − t_PHLD ^⎜ for Each Driver
Max − Min t_PLHD Within a Package
Max − Min t_PHLD Within a Package
Enable Timing
Single−ended Outputs (Figure 5)
Enable to Active High Output
Enable to Active Low Output
Active High to Disable (using Enable)
Active Low to Disable (using Enable)
Enable to Active High Output (MC75172B only)
Enable to Active Low Output (MC75172B only)
Active High to Disable (using Enable, MC75172B only)
Active Low to Disable (using Enable, MC75172B only)
Differential Outputs (Figure 6)
Enable to Active Output
Enable to Active Output (MC75172B only)
Enable to 3−State Output
Enable to 3−State Output (MC75172B only)
Symbol
t_PLH
t_PHL
t_PLH(D)
t_PHL(D)
t_dr, t_df
t_SK1
t_SK2
t_SK3
t_PZH(E)
t_PZL(E)
t_PHZ(E)
t_PLZ(E)
t_PZH(E)
t_PZL(E)
t_PHZ(E)
t_PLZ(E)
t_PZD(E)
t_PZD(E)
t_PDZ(E)
t_PDZ(E)
Min Typ Max Unit
ns
−
23
30
−
18
30
ns
−
15
25
−
17
25
−
19
25
ns
ns
−
0.2
−
−
1.5
−
−
1.5
−
ns
−
48
60
−
20
30
−
35
45
−
30
50
−
58
70
−
28
35
−
38
50
−
36
50
ns
−
47
−
−
56
−
−
32
−
−
40
−
MC75172B
1A 1
1Y 2
NC 3
1Z 4
En 5
2Z 6
NC 7
2Y 8
2A 9
GND 10
DW Package
20 V_CC
19 4A
18 4Y
17 NC
16 4Z
15 En
14 3Z
13 NC
12 3Y
11 3A
PIN CONNECTIONS
MC75174B
1A 1
1Y 2
1Z 3
En ₄
12
2Z 5
2Y 6
2A 7
GND 8
P Package
16 V_CC
15 4A
14 4Y
13 4Z
12 ^En
34
11 3Z
10 3Y
9 3A
1A 1
1Y 2
NC 3
1Z 4
En ₅
12
2Z 6
NC 7
2Y 8
2A 9
GND 10
DW Package
20 V_CC
19 4A
18 4Y
17 NC
16 4Z
15 ^En
34
14 3Z
13 NC
12 3Y
11 3A
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