参数资料
型号: ADM489ARZ-REEL
厂商: Analog Devices Inc
文件页数: 11/16页
文件大小: 0K
描述: IC TXRX RS-485 DIFF LP 14SOIC
标准包装: 2,500
类型: 收发器
驱动器/接收器数: 1/1
规程: RS422,RS485
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOICN
包装: 带卷 (TR)
ADM488/ADM489
Rev. D | Page 4 of 16
TIMING SPECIFICATIONS
VCC = 5 V ± 10%. All specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Propagation Delay Input to Output, TPLH, TPHL
250
2000
ns
RL Differential = 54 Ω, CL1 = CL2 = 100 pF,
Driver O/P to OP, TSKEW
100
800
ns
RL Differential = 54 Ω, CL1 = CL2 = 100 pF,
Driver Rise/Fall Time, TR, TF
250
2000
ns
RL Differential = 54 Ω, CL1 = CL2 = 100 pF,
Driver Enable to Output Valid
250
2000
ns
RL = 500 Ω, CL = 100 pF, see Figure 7
Driver Disable Timing
300
3000
ns
RL = 500 Ω, CL = 15 pF, see Figure 7
Data Rate
250
kbps
RECEIVER
Propagation Delay Input to Output, TPLH, TPHL
250
2000
ns
CL = 15 pF, see Figure 10
Skew |TPLH TPHL|
100
ns
Receiver Enable, TEN1
10
50
ns
RL = 1 kΩ, CL = 15 pF, see Figure 9
Receiver Disable, TEN2
10
50
ns
RL = 1 kΩ, CL = 15 pF, see Figure 9
Data Rate
250
kbps
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