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參數(shù)資料
| 型號(hào)： | ISL83387EIVZ-T |
| 廠商： | INTERSIL CORP |
| 元件分類(lèi)： | 通用總線功能 |
| 英文描述： | +/-15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply |
| 中文描述： | TRIPLE LINE TRANSCEIVER, PDSO24 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MO-153AD, TSSOP-24 |
| 文件頁(yè)數(shù)： | 10/13頁(yè) |
| 文件大小： | 317K |
| 代理商： | ISL83387EIVZ-T |
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10
FN6040.1
July 8, 2005
High Data Rates
The ISL83387E maintains the RS-232
±
5V minimum
transmitter output voltages even at high data rates. Figure 9
details a transmitter loopback test circuit, and Figure 10
illustrates the loopback test result at 120kbps. For this test,
all transmitters were simultaneously driving RS-232 loads in
parallel with 1000pF, at 120kbps. Figure 11 shows the
loopback results for a single transmitter driving 1000pF and
an RS-232 load at 250kbps. The static transmitters were
also loaded with an RS-232 receiver.
Interconnection with 3V and 5V Logic
Standard 3.3V powered RS-232 devices interface well with
3V and 5V powered TTL compatible logic families (e.g., ACT
and HCT), but the logic outputs (e.g., R
OUTS
) fail to reach
the V
IH
level of 5V powered CMOS families like HC, AC, and
CD4000. The ISL83387E V
L
supply pin solves this problem.
By connecting V
L
to the same supply (1.8V to 5V) powering
the logic device, the ISL83387E logic outputs will swing from
GND to the logic V
CC
.
±
15kV ESD Protection
All pins on the 3V interface devices include ESD protection
structures, but the ISL83387E
incorporates advanced
structures which allow the RS-232 pins (transmitter outputs
and receiver inputs) to survive ESD events up to
±
15kV. The
RS-232 pins are particularly vulnerable to ESD damage
because they typically connect to an exposed port on the
exterior of the finished product. Simply touching the port
pins, or connecting a cable, can cause an ESD event that
might destroy unprotected ICs. These new ESD structures
protect the device whether or not it is powered up, protect
FIGURE 9. TRANSMITTER LOOPBACK TEST CIRCUIT
FIGURE 8. TRANSMITTER OUTPUTS WHEN EXITING
POWERDOWN
TIME (20
μ
s/DIV.)
T1
2V/DIV
5V/DIV
V
CC
= +3.3V
C1 - C4 = 0.1
μ
F
T2
FORCEOFF
ISL83387E
V
CC
C
1
C
2
C
4
+
C
3
+
+
+
1000pF
V+
V-
5K
T
IN
R
OUT
C1+
C1-
C2+
C2-
R
IN
T
OUT
+
V
CC
0.1
μ
F
V
CC
FORCEOFF
FORCEON
V
L
FIGURE 10. LOOPBACK TEST AT 120kbps
FIGURE 11. LOOPBACK TEST AT 250kbps
T1
IN
T1
OUT
R1
OUT
5
μ
s/DIV.
V
CC
= +3.3V
C1 - C4 = 0.1
μ
F
5V/DIV.
T1
IN
T1
OUT
R1
OUT
2
μ
s/DIV.
5V/DIV.
V
CC
= +3.3V
C1 - C4 = 0.1
μ
F
ISL83387E
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PDF描述 |
|---|---|
| ISL83387 | +/-15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply |
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| ISL83483IP | Quadruple 2-Input Positive-OR Gates 14-SOIC -40 to 85 |
| ISL83490 | 3.3V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL83483 | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:3.3V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
| ISL83483_04 | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:3.3V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
| ISL83483IB | 功能描述:IC TXRX RS-485/422 8-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類(lèi)型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類(lèi)型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| ISL83483IB-T | 功能描述:IC TXRX RS485/422 3.3V LP 8-S RoHS:否 類(lèi)別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:25 系列:- 類(lèi)型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類(lèi)型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:16-PDIP 包裝:管件 |
| ISL83483IBZ | 功能描述:RS-422/RS-485 接口 IC 8LD 3V RS-485 TRANSC 1TX/1RX W/SHTDWN RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
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