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參數(shù)資料
型號(hào)： SP339EER1-L
廠商： Exar Corporation
文件頁(yè)數(shù)： 23/23頁(yè)
文件大小： 0K
描述： IC TXRX RS232/485 TERM 40QFN
特色產(chǎn)品： SP339 Multiprotocol Transceiver
標(biāo)準(zhǔn)包裝： 490
類(lèi)型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 3/5
規(guī)程： RS232，RS422，RS485
電源電壓： 3.3V，5V
安裝類(lèi)型： 表面貼裝
封裝/外殼： 40-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 40-QFN（6x6）
包裝： 托盤(pán)
其它名稱(chēng)： 1016-1704
SP339E
9
REV. 1.0.3
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
TIMING CHARACTERISTICS (Continued)
UNLESS OTHERWISE NOTED:
VCC = +3.3V ±5% or +5.0V ±5%, C1-C4 = 0.1 F; TA = TMIN to TMAX. Typical values are at VCC = 3.3V, TA = +25°C.
SYMBOL
PARAMETERS
MIN.
TYP.
MAX.
UNITS
CONDITIONS
RS-485/RS-422, DATA RATE = 250kbps (SLEW = Vcc), ONE TRANSMITTER SWITCHING
Maximum Data Rate
250
kbps
RL = 54
CL = 50pF
tRPHL, tRPLH
Receiver Propagation Delay
50
150
ns
CL = 15pF, Figure 11
tRPHL-tRPLH
Receiver Propagation Delay Skew
20
ns
tDPHL, tDPLH
Driver Propagation Delay
500
1000
ns
RL = 54
CL = 50pF,
Figure 12
tDPHL-tDPLH
Driver Propagation Delay Skew
100
ns
tDR, tDF
Driver Rise and Fall Time
300
650
1200
ns
tRZH, tRZL
Receiver Output Enable Time
200
ns
CL = 15pF, Figure 13
tRHZ, tRLZ
Receiver Output Disable Time
200
ns
tDZH, tDZL
Driver Output Enable Time
1000
ns
RL = 500
CL = 50pF,
Figure 14
tDHZ, tDLZ
Driver Output Disable Time
200
ns
RS-485/RS-422, DATA RATE = 20Mbps (SLEW = 0V), ONE TRANSMITTER SWITCHING
Maximum Data Rate
20
Mbps
RL = 54
CL = 50pF
tRPHL, tRPLH
Receiver Propagation Delay
50
150
ns
CL = 15pF, Figure 11
tRPHL-tRPLH
Receiver Propagation Delay Skew
10
ns
tDPHL, tDPLH
Driver Propagation Delay
30
100
ns
RL = 54
CL = 50pF,
Figure 12
tDPHL-tDPLH
Driver Propagation Delay Skew
10
ns
tDR, tDF
Driver Rise and Fall Time
10
20
ns
tRZH, tRZL
Receiver Output Enable Time
200
ns
CL = 15pF, Figure 13
tRHZ, tRLZ
Receiver Output Disable Time
200
ns
tDZH, tDZL
Driver Output Enable Time
200
ns
RL = 500
CL = 50pF,
Figure 14
tDHZ, tDLZ
Driver Output Disable Time
200
ns
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