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参数资料
| 型号： | DS276 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Line Driver or Receiver |
| 英文描述： | LINE TRANSCEIVER, PDIP8 |
| 封装： | 0.300 INCH, DIP-8 |
| 文件页数： | 10/15页 |
| 文件大小： | 1575K |
| 代理商： | DS276 |
4
Maxim Integrated
40Mbps, +3.3V, RS-485 Half-Duplex
Transceivers
MAX14840E/MAX14841E
SWITCHING CHARACTERISTICS (continued)
(VCC = +3.0V to +3.6V, TA = -40NC to +125NC, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25NC.) (Notes 2, 3)
Note 2: All devices are 100% production tested at TA = +25NC. Specifications for all temperature limits are guaranteed by design.
Note 3: All currents into the device are positive; all currents out of the device are negative. All voltages are referenced to device
ground, unless otherwise noted.
Note 4: DVOD and DVOC are the changes in VOD and VOC, respectively, when the DI input changes state.
Note 5: Capacitive load includes test probe and fixture capacitance.
Note 6: The timing parameter refers to the driver or receiver enable delay when the device has exited the initial hot-swap protect
state and is in normal operating mode.
Note 7: Shutdown is enabled by driving RE high and DE low. The device is guaranteed to have entered shutdown after tSHDN has
elapsed.
Note 8: Parameter is guaranteed by characterization and not production tested.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Data Rate
DRMAX
40
Mbps
Driver Enable to Output High
tDZH
RL = 110I, CL = 50pF, Figures 4 and 5
(Notes 5, 6)
30
ns
Driver Enable to Output Low
tDZL
RL = 110I, CL = 50pF, Figures 4 and 5
(Notes 5, 6)
30
ns
Driver Disable Time from Low
tDLZ
RL = 110I, CL = 50pF, Figures 4 and 5
(Notes 5, 6)
30
ns
Driver Disable Time from High
tDHZ
RL = 110I, CL = 50pF, Figures 4 and 5
(Notes 5, 6)
30
ns
Driver Enable from Shutdown to
Output Low
tDZL(SHDN)
RL = 110I, CL = 50pF, Figures 4 and 5
(Notes 5, 6)
4
F
s
Driver Enable from Shutdown to
Output High
tDZH(SHDN)
RL = 110I, CL = 50pF, Figures 4 and 5
(Notes 5, 6)
4
F
s
Time to Shutdown
tSHDN
(Note 7)
50
800
ns
RECEIVER
Propagation Delay
tRPLH
CL = 15pF, Figures 6 and 7 (Note 5)
25
ns
tRPHL
25
Receiver Output Skew
tRSKEW
CL = 15pF, Figures 6 and 7 (Notes 5, 8)
2
ns
Maximum Data Rate
DRMAX
40
Mbps
Receiver Enable to Output High
tRZH
RL = 1kI, CL = 15pF, Figure 8 (Notes 5, 6)
20
ns
Receiver Enable to Output Low
tRZL
RL = 1kI, CL = 15pF, Figure 8 (Notes 5, 6)
20
ns
Receiver Disable Time from Low
tRLZ
RL = 1kI, CL = 15pF, Figure 8 (Notes 5, 6)
20
ns
Receiver Disable Time from High
tRHZ
RL = 1kI, CL = 15pF, Figure 8 (Notes 5, 6)
20
ns
Receiver Enable from Shutdown
to Output Low
tRZL(SHDN) RL = 1kI, CL = 15pF, Figure 8 (Notes 5, 6)
4
F
s
Receiver Enable from Shutdown
to Output High
tRZH(SHDN) RL = 1kI, CL = 15pF, Figure 8 (Notes 5, 6)
4
F
s
Time to Shutdown
tSHDN
(Note 7)
50
800
ns
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