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參數(shù)資料
| 型號(hào)： | ICL3238ECA-T |
| 廠商： | Intersil |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC 5DRVR/3RCVR RS232 3V 28-SSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 5/3 |
| 規(guī)程： | RS232 |
| 電源電壓： | 3 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
10
When using minimum required capacitor values, make sure
that capacitor values do not degrade excessively with
temperature. If in doubt, use capacitors with a larger nominal
value. The capacitor’s equivalent series resistance (ESR)
usually rises at low temperatures and it influences the
amount of ripple on V+ and V-.
Power Supply Decoupling
In most circumstances a 0.1F bypass capacitor is
adequate. In applications that are particularly sensitive to
power supply noise, decouple VCC to ground with a
capacitor of the same value as the charge-pump capacitor C1.
Connect the bypass capacitor as close as possible to the IC.
Operation Down to 2.7V
ICL3238E transmitter outputs meet RS-562 levels (±3.7V), at
full data rate, with VCC as low as 2.7V. RS-562 levels
typically ensure inter operability with RS-232 devices.
Transmitter Outputs when Exiting
Powerdown
Figure 10 shows the response of two transmitter outputs
when exiting powerdown mode. As they activate, the two
transmitter outputs properly go to opposite RS-232 levels,
with no glitching, ringing, nor undesirable transients. Each
transmitter is loaded with 3k
in parallel with 2500pF. Note
that the transmitters enable only when the magnitude of the
supplies exceed approximately 3V.
High Data Rates
The ICL3238E maintains the RS-232 ±5V minimum
transmitter output voltages even at high data rates. Figure
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 13 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.
TIME (20s/DIV.)
T1
T2
2V/DIV
5V/DIV
VCC = +3.3V
FORCEOFF
FIGURE 10. TRANSMITTER OUTPUTS WHEN EXITING
POWERDOWN
C1 - C4 = 0.1F
FIGURE 12. LOOPBACK TEST AT 120kbps
FIGURE 13. LOOPBACK TEST AT 250kbps
ICL3238E
VCC
FORCEOFF
C1
C2
C4
C3
+
1000pF
V+
V-
5k
TIN
ROUT
C1+
C1-
C2+
C2-
RIN
TOUT
+
VCC
0.1F
VCC
FORCEON
FIGURE 11. TRANSMITTER LOOPBACK TEST CIRCUIT
T1IN
T1OUT
R1OUT
5s/DIV.
VCC = +3.3V
5V/DIV.
C1 - C4 = 0.1F
T1IN
T1OUT
R1OUT
2s/DIV.
5V/DIV.
VCC = +3.3V
C1 - C4 = 0.1F
ICL3238E
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| ICL3238ECAZ | 功能描述:RS-232接口集成電路 RS232 3V 5D/3R 15KV E-DWN COM RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| ICL3238ECAZ-T | 功能描述:RS-232接口集成電路 RS232 3V 5D/3R 15KV E-DWN COMEL RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| ICL3238ECB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ICL3238ECV | 制造商:Rochester Electronics LLC 功能描述:RS232 3V 5D/3R 15KV E-DWN 28TSSOP COM - Bulk |
| ICL3238EIA | 功能描述:IC 5DRVR/3RCVR RS232 3V 28-SSOP RoHS:否 類別: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 |
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