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ISL33334E Datasheet, PDF (8/23 Pages) Intersil Corporation – Operates from a single 3.3V supply
ISL33334E, ISL33337E
Electrical Specifications Test Conditions: VCC = 3.15V to 3.45V, C1 - C4 = 0.1µF; unless otherwise specified. Typicals are at VCC = 3.3V,
TA = +25°C (Note 10). (Continued)Boldface limits apply across the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP MIN
MAX
(°C) (Note 14) TYP (Note 14) UNIT
Receiver Propagation Delay Skew
tRSKEW tRPHL - tRPLH (Figure 8)
Full
-
18
Receiver Maximum Data Rate
DRR CL = 15pF
Full
0.46
2
RS-485 DRIVER SWITCHING CHARACTERISTICS (FAST DATA RATE (20Mbps), PORT 2, (SLOW485 = VCC))
Driver Differential Input to Output
Delay
tDLH, tDHL RDIFF = 54Ω, CL = 100pF (Figure 3)
Full
10
20
40
ns
-
Mbps
35
ns
Driver Output Skew
tSKEW RDIFF = 54Ω, CL = 100pF (Figure 3)
Full
-
Driver Differential Rise or Fall Time tR, tF RDIFF = 54Ω, CL = 100pF, (Figure 3)
Full
3
Driver Enable to Output Low
tZL
CL = 100pF, SW = VCC (Figure 4)
Full
-
Driver Enable to Output High
tZH CL = 100pF, SW = GND (Figure 4)
Full
-
Driver Disable from Output Low
tLZ
CL = 15pF, SW = VCC (Figure 4)
Full
-
Driver Disable from Output High
tHZ CL = 15pF, SW = GND Figure 4)
Full
-
Driver Enable from Shutdown to
tZL(SHDN) RL = 500Ω, CL = 100pF, SW = VCC (Figure 4)
Full
-
Output Low
2
10
ns
20
30
ns
28
60
ns
35
60
ns
30
60
ns
30
60
ns
100
250
ns
Driver Enable from Shutdown to
tZH(SHDN) RL = 500Ω, CL = 100pF, SW = GND (Figure 4)
Full
-
Output High
290
375
ns
Driver Maximum Data Rate
fMAX RDIFF = 54Ω, CL = 100pF (Figure 3)
Full
20
35
RS-485 DRIVER SWITCHING CHARACTERISTICS (SLOW DATA RATE (115kbps), PORT 2, (SLOW485 = GND))
-
Mbps
Driver Differential Input to Output
Delay
tDLH, tDHL RDIFF = 54Ω, CL = 100pF (Figure 3)
Full
800
1600 2500
ns
Driver Output Skew
tSKEW RDIFF = 54Ω, CL = 100pF (Figure 3)
Full
-
250
500
ns
Driver Differential Rise or Fall Time tR, tF RDIFF = 54Ω, CL = 100pF (Figure 3)
Full 1000 1700 3100
ns
Driver Enable to Output Low
tZL
CL = 100pF, SW = VCC (Figure 4)
Full
-
45
100
ns
Driver Enable to Output High
tZH CL = 100pF, SW = GND (Figure 4)
Full
-
900
1200
ns
Driver Disable from Output Low
tLZ
CL = 15pF, SW = VCC (Figure 4)
Full
-
35
60
ns
Driver Disable from Output High
tHZ CL = 15pF, SW = GND (Figure 4)
Full
-
25
60
ns
Driver Enable from Shutdown to
tZL(SHDN) RL = 500Ω, CL = 100pF, SW = VCC (Figure 4)
Full
-
Output Low
-
800
ns
Driver Enable from Shutdown to
tZH(SHDN) RL = 500Ω, CL = 100pF, SW = GND (Figure 4)
Full
-
Output High
-
1500
ns
Driver Maximum Data Rate
fMAX RDIFF = 54Ω, CL = 100pF (Figure 3)
RS-485 RECEIVER SWITCHING CHARACTERISTICS (PORT 2, ALL SPEEDS)
Full
115
800
-
kbps
Receiver Input to Output Delay
Receiver Skew | tPLH - tPHL |
Receiver Maximum Data Rate
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Output Low
Receiver Disable from Output High
Receiver Enable from Shutdown to
Output Low
tPLH, tPHL (Figure 5)
tSKEW (Figure 5)
fMAX
tZL
CL = 15pF, SW = VCC (Figure 6)
tZH CL = 15pF, SW = GND (Figure 6)
tLZ
CL = 15pF, SW = VCC (Figure 6)
tHZ CL = 15pF, SW = GND (Figure 6)
tZLSHDN CL = 15pF, SW = VCC (Figure 6)
Full
20
Full
-
Full
20
Full
-
Full
-
Full
-
Full
-
Full
-
45
70
ns
3
10
ns
40
-
Mbps
20
60
ns
20
60
ns
20
60
ns
20
60
ns
500
900
ns
Receiver Enable from Shutdown to tZHSHDN CL = 15pF, SW = GND (Figure 6)
Output High
Full
-
500
900
ns
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FN8776.1
October 21, 2016