ISL81334_14 Datasheet, PDF (9/28 Pages) Intersil Corporation – ±15kV ESD Protected, 5V, Two Port, Dual Protocol (RS-232/RS-485) Transceivers

ISL81334, ISL41334
Electrical Specifications
PARAMETER
Test Conditions: V_CC = 4.5V to 5.5V, C₁ - C₄ = 0.1µF, V_L = V_CC (for QFN only); Unless Otherwise Specified.
Typicals are at V_CC = 5V, T_A = +25°C (Note 6). (Continued)
SYMBOL
TEST CONDITIONS
TEMP MIN
MAX
(°C) (Note 11) TYP (Note 11) UNITS
RS-232 DRIVER AND RECEIVER SWITCHING CHARACTERISTICS (SEL = GND, ALL VERSIONS AND SPEEDS)
Driver Output Transition Region
Slew Rate
SR R_L = 3kΩ, Measured From
3V to -3V or -3V to 3V
C_L ≥ 15pF
Full
-
C_L ≤ 2500pF Full
4
18
30
V/µs
12
-
V/µs
Driver Output Transition Time
t_r, t_f R_L = 3kΩ, C_L = 2500pF, 10% to 90%
Full
0.22
1.2
3.1
µs
Driver Propagation Delay
t_DPHL R_L = 3kΩ, C_L = 1000pF (Figure 6)
Full
-
1
2
µs
t_DPLH
Full
-
1.2
2
µs
Driver Propagation Delay Skew
t_DSKEW t_DPHL - t_DPLH (Figure 6)
Full
-
240
400
ns
Driver Enable Time from Shutdown t_DENSD V_OUT = ±3.0V
25
-
20
-
µs
Driver Maximum Data Rate
DR_D
R_L = 3kΩ, C_L = 1000pF, One Transmitter
Switching per port
Full
460
650
-
kbps
Receiver Propagation Delay
t_RPHL C_L = 15pF (Figure 7)
Full
-
50
120
t_RPLH
Full
-
40
120
Receiver Propagation Delay Skew t_RSKEW t_RPHL - t_RPLH (Figure 7)
Full
-
10
40
Receiver Maximum Data Rate
DR_R C_L = 15pF
Full
0.46
2
-
RS-485 DRIVER SWITCHING CHARACTERISTICS (FAST DATA RATE (20Mbps), SEL = V_CC, ALL VERSIONS (SPA = V_CC if QFN))
Driver Differential Input to Output
Delay
t_DLH,
t_DHL
R_DIFF = 54Ω, C_L = 100pF (Figure 2)
Full
15
30
50
Driver Output Skew
t_SKEW R_DIFF = 54Ω, C_L = 100pF (Figure 2)
Full
-
3
10
Driver Differential Rise or Fall Time t_R, t_F R_DIFF = 54Ω, C_L = 100pF (Figure 2)
Full
3
11
20
Driver Enable to Output Low
t_ZL C_L = 100pF, SW = V_CC (Figure 3)
Full
-
27
60
Driver Enable to Output High
t_ZH C_L = 100pF, SW = GND (Figure 3)
Full
-
24
60
Driver Disable from Output Low
t_LZ C_L = 15pF, SW = V_CC (Figure 3)
Full
-
31
60
Driver Disable from Output High
t_HZ C_L = 15pF, SW = GND (Figure 3)
Full
-
24
60
Driver Enable from Shutdown to t_ZL(SHDN) R_L = 500Ω, C_L = 100pF, SW = V_CC (Figure 3)
Full
-
Output Low
65
250
ns
ns
ns
Mbps
ns
ns
ns
ns
ns
ns
ns
ns
Driver Enable from Shutdown to t_ZH(SHDN) R_L = 500Ω, C_L = 100pF, SW = GND (Figure 3)
Full
-
Output High
152
250
ns
Driver Maximum Data Rate
f_MAX R_DIFF = 54Ω, C_L = 100pF (Figure 2)
Full
-
30
-
RS-485 DRIVER SWITCHING CHARACTERISTICS (MEDIUM DATA RATE (460kbps, QFN ONLY), SEL = V_CC, SPA = SPB = GND)
Driver Differential Input to Output
Delay
t_DLH,
t_DHL
R_DIFF = 54Ω, C_L = 100pF (Figure 2)
Full
200
490
1000
Driver Output Skew
t_SKEW R_DIFF = 54Ω, C_L = 100pF (Figure 2)
Full
-
110
400
Driver Differential Rise or Fall Time t_R, t_F R_DIFF = 54Ω, C_L = 100pF (Figure 2)
Full
300
600
1100
Driver Enable to Output Low
t_ZL C_L = 100pF, SW = V_CC (Figure 3)
Full
-
30
300
Driver Enable to Output High
t_ZH C_L = 100pF, SW = GND (Figure 3)
Full
-
128
300
Driver Disable from Output Low
t_LZ C_L = 15pF, SW = V_CC (Figure 3)
Full
-
31
60
Driver Disable from Output High
t_HZ C_L = 15pF, SW = GND (Figure 3)
Full
-
24
60
Driver Enable from Shutdown to t_ZL(SHDN) R_L = 500Ω, C_L = 100pF, SW = V_CC (Figure 3)
Full
-
Output Low
65
500
Mbps
ns
ns
ns
ns
ns
ns
ns
ns
Driver Enable from Shutdown to t_ZH(SHDN) R_L = 500Ω, C_L = 100pF, SW = GND (Figure 3)
Full
-
Output High
255
500
ns
9
FN6202.3
November 21, 2007