10
FN6362.0
May 27, 2008
Driver Enable to Output High
tZH
CL = 100pF, SW = GND (Figure 3) Full
-
350
450
ns
Driver Disable from Output Low
tLZ
CL = 15pF, SW = VCC (Figure 3) Full
-
30
60
ns
Driver Disable from Output High
tHZ
CL = 15pF, SW = GND (Figure 3) Full
-
30
60
ns
Driver Enable from Shutdown to
Output Low
tZL(SHDN) RL = 500Ω, CL = 100pF, SW = VCC (Figure 3) Full
-
500
ns
Driver Enable from Shutdown to
Output High
tZH(SHDN) RL = 500Ω, CL = 100pF, SW = GND (Figure 3) Full
-
750
ns
Driver Maximum Data Rate
fMAX
RDIFF = 54Ω, CL = 100pF (Figure 2) Full
460
2000
-
kbps
RS-485 DRIVER SWITCHING CHARACTERISTICS (SLOW DATA RATE (115kbps, QFN ONLY), SEL = VCC, SPA = GND, SPB= VCC)
Driver Differential Input to Output
Delay
tDLH, tDHL RDIFF = 54Ω, CL = 100pF (Figure2) Full
800
1600
2500
ns
Driver Output Skew
tSKEW
RDIFF = 54Ω, CL = 100pF (Figure2) Full
-
250
500
ns
Driver Differential Rise or Fall Time
tR, tF
RDIFF = 54Ω, CL = 100pF (Figure 2) Full
1000
1700
3100
ns
Driver Enable to Output Low
tZL
CL = 100pF, SW = VCC (Figure 3) Full
-
45
100
ns
Driver Enable to Output High
tZH
CL = 100pF, SW = GND (Figure 3) Full
-
900
1200
ns
Driver Disable from Output Low
tLZ
CL = 15pF, SW = VCC (Figure 3) Full
-
35
60
ns
Driver Disable from Output High
tHZ
CL = 15pF, SW = GND (Figure 3) Full
-
25
60
ns
Driver Enable from Shutdown to
Output Low
tZL(SHDN) RL = 500Ω, CL = 100pF, SW = VCC (Figure 3) Full
-
800
ns
Driver Enable from Shutdown to
Output High
tZH(SHDN) RL = 500Ω, CL = 100pF, SW = GND (Figure 3) Full
-
1500
ns
Driver Maximum Data Rate
fMAX
RDIFF = 54Ω, CL = 100pF (Figure 2) Full
115
800
-
kbps
RS-485 RECEIVER SWITCHING CHARACTERISTICS (SEL = VCC, ALL VERSIONS AND SPEEDS)
Receiver Input to Output Delay
Full
20
45
70
ns
Receiver Skew | tPLH - tPHL |tSKEW
Full
-
3
10
ns
Receiver Maximum Data Rate
fMAX
Full
20
40
-
Mbps
Receiver Enable to Output Low
tZL
QFN Only, CL = 15pF, SW = VCC (Figure 5) Full
-
20
60
ns
Receiver Enable to Output High
tZH
QFN Only, CL = 15pF, SW = GND (Figure5) Full
-
20
60
ns
Receiver Disable from Output Low
tLZ
QFN Only, CL = 15pF, SW = VCC (Figure 5) Full
-
20
60
ns
Receiver Disable from Output High
tHZ
QFN Only, CL = 15pF, SW = GND (Figure 5) Full
-
20
60
ns
Receiver Enable from Shutdown to
Output Low
tZLSHDN
CL = 15pF, SW = VCC (Figure 5) Full
-
500
900
ns
Receiver Enable from Shutdown to
Output High
tZHSHDN CL = 15pF, SW = GND (Figure 5) Full
-
500
900
ns
NOTES:
7. All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless
otherwise specified.
8. Supply current specification is valid for loaded drivers when DE = 0V (RS-485 mode) or DEN = 0V (RS-232 mode).
9. Applies to peak current. See “Typical Performance Curves” for more information.
10. RIN defaults to RS-485 mode (>15kΩ) when the device is unpowered (VCC = 0V), or in SHDN, regardless of the state of the SEL inputs.
11. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by
characterization and are not production tested.
Electrical Specifications
Test Conditions: VCC = 3.15V to 3.45V, C1 - C4 = 0.1F, VL = VCC (for QFN only); Unless Otherwise Specified.
Typicals are at VCC = 3.3V, TA =+25°C (Note 7) (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(°C)
MIN
(Note 11)
TYP
MAX
(Note 11) UNITS
ISL3332, ISL3333