ISL31470E_10 Datasheet, PDF (7/21 Pages) Intersil Corporation – Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers

ISL31470E, ISL31472E, ISL31475E, ISL31478E
Electrical Specifications Test Conditions: V_CC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at V_CC = 5V,
T_A = +25°C (Note 8). Boldface limits apply over the operating temperature range,
-40°C to +85°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP MIN
MAX
(°C) (Note 16) TYP (Note 16) UNITS
Driver Differential Rise or
Fall Time
t_R, t_F R_D = 54Ω, C_D = 50pF (Figure 2)
Full
400
650 1200
ns
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable from Output
Low
f_MAX
t_ZH
t_ZL
t_LZ
C_D = 820pF (Figure 4)
SW = GND (Figure 3), (Note 11)
SW = V_CC (Figure 3), (Note 11)
SW = V_CC (Figure 3)
Full
0.25
1.5
-
Mbps
Full
-
-
1200
ns
Full
-
-
1200
ns
Full
-
-
120
ns
Driver Disable from Output
High
t_HZ SW = GND (Figure 3)
Full
-
-
120
ns
Time to Shutdown
t_SHDN (Note 13)
Full
60
160
600
ns
Driver Enable from Shutdown t_ZH(SHDN) SW = GND (Figure 3), (Notes 13, 14) Full
-
to Output High
-
2500
ns
Driver Enable from Shutdown t_ZL(SHDN) SW = V_CC (Figure 3), (Notes 13, 14) Full
-
to Output Low
-
2500
ns
DRIVER SWITCHING CHARACTERISTICS (1Mbps Versions; ISL31475E)
Driver Differential Output
Delay
t_PLH, t_PHL R_D = 54Ω, C_D = 50pF (Figure 2)
Full
-
70
125
ns
Driver Differential Output Skew
Driver Differential Rise or Fall
Time
t_SKEW
t_R, t_F
R_D = 54Ω, C_D = 50pF (Figure 2)
R_D = 54Ω, C_D = 50pF (Figure 2)
Full
-
3
15
ns
Full
70
230
300
ns
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable from Output
Low
f_MAX
t_ZH
t_ZL
t_LZ
C_D = 820pF (Figure 4)
SW = GND (Figure 3), (Note 11)
SW = V_CC (Figure 3), (Note 11)
SW = V_CC (Figure 3)
Full
1
Full
-
Full
-
Full
-
4
-
Mbps
-
350
ns
-
300
ns
-
120
ns
Driver Disable from Output
High
t_HZ SW = GND (Figure 3)
Full
-
-
120
ns
Time to Shutdown
t_SHDN (Note 13)
Full
60
160
600
ns
Driver Enable from Shutdown t_ZH(SHDN) SW = GND (Figure 3), (Notes 13, 14) Full
-
to Output High
-
2000
ns
Driver Enable from Shutdown t_ZL(SHDN) SW = V_CC (Figure 3), (Notes 13, 14) Full
-
to Output Low
-
2000
ns
DRIVER SWITCHING CHARACTERISTICS (15Mbps Versions; ISL31478E)
Driver Differential Output
Delay
t_PLH, t_PHL R_D = 54Ω, C_D = 50pF (Figure 2)
Full
-
21
45
ns
Driver Differential Output Skew
Driver Differential Rise or Fall
Time
t_SKEW
t_R, t_F
R_D = 54Ω, C_D = 50pF (Figure 2)
R_D = 54Ω, C_D = 50pF (Figure 2)
Full
-
3
6
ns
Full
5
17
30
ns
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable from Output
Low
f_MAX
t_ZH
t_ZL
t_LZ
C_D = 470pF (Figure 4)
SW = GND (Figure 3), (Note 11)
SW = V_CC (Figure 3), (Note 11)
SW = V_CC (Figure 3)
Full
15
25
-
Mbps
Full
-
-
100
ns
Full
-
-
100
ns
Full
-
-
120
ns
7
FN7639.0
June 17, 2010