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參數(shù)資料
| 型號： | ISL4241EIRZ-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers |
| 中文描述： | TRIPLE LINE TRANSCEIVER, PQCC32 |
| 封裝： | 5 X 5 MM, LEAD FREE, PLASTIC, QFN-32 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 377K |
| 代理商： | ISL4241EIRZ-T |
8
the corresponding monitor receiver can be dedicated to this
task as shown in Figure 3.
Low Power Operation
These 3V devices require a nominal supply current of
0.3mA, even at V
CC
= 5.5V, during normal operation (not in
powerdown mode). This is considerably less than the 5mA to
11mA current required by comparable 5V RS-232 devices,
allowing users to reduce system power simply by switching
to this new family.
Powerdown Functionality
The already low current requirement drops significantly
when the device enters powerdown mode. In powerdown,
supply current drops to 10nA, because the on-chip charge
pump turns off (V+ collapses to V
CC
, V- collapses to GND),
and the transmitter outputs three-state. Inverting receiver
outputs disable only in manual powerdown; refer to Table 2
for details. This micro-power mode makes the ISL424XE
ideal for battery powered and portable applications.
Software Controlled (Manual) Powerdown
Most devices in the ISL424XE family provide pins that allow
the user to force the IC into the low power, standby state.
TABLE 2. POWERDOWN AND ENABLE LOGIC TRUTH TABLE
RS-232
SIGNAL
PRESENT
AT
RECEIVER
INPUT
SHDN OR
FORCEOFF
INPUT
FORCEON
INPUT
EN
INPUT
TRANSMITTER
OUTPUTS
RECEIVER
OUTPUTS
R
OUTB
OUTPUTS
INVALID
OUTPUT
MODE OF OPERATION
ISL4241E
N.A.
L
N.A.
L
High-Z
Active
Active
N.A.
Manual Powerdown
N.A.
L
N.A.
H
High-Z
High-Z
Active
N.A.
Manual Powerdown w/Rcvr. Disabled
N.A.
H
N.A.
L
Active
Active
Active
N.A.
Normal Operation
N.A.
H
N.A.
H
Active
High-Z
Active
N.A.
Normal Operation w/Rcvr. Disabled
ISL4243E
NO
H
H
N.A.
Active
Active
Active
L
Normal Operation
(Auto Powerdown Disabled)
YES
H
L
N.A.
Active
Active
Active
H
Normal Operation
(Auto Powerdown Enabled)
NO
H
L
N.A.
High-Z
Active
Active
L
Powerdown Due to Auto Powerdown
Logic
YES
L
X
N.A.
High-Z
High-Z
Active
H
Manual Powerdown
NO
L
X
N.A.
High-Z
High-Z
Active
L
Manual Powerdown
FIGURE 2. POWER DRAIN THROUGH POWERED DOWN
PERIPHERAL
OLD
V
CC
POWERED
DOWN
UART
GND
SHDN = GND
V
CC
Rx
Tx
V
CC
CURRENT
FLOW
V
OUT
=
V
CC
RS-232 CHIP
FIGURE 3. DISABLED RECEIVERS PREVENT POWER DRAIN
ISL424XE
TRANSITION
DETECTOR
R
X
T
X
R2
OUTB
R2
OUT
T1
IN
FORCEOFF = GND
OR
SHDN = GND, EN = V
CC
V
CC
V
CC
TO
R2
IN
T1
OUT
V
OUT
=
HI-Z
POWERED
DOWN
UART
WAKE-UP
LOGIC
ISL4241E, ISL4243E
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL4243EIR | QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers |
| ISL4243EIRZ | QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers |
| ISL4243EIRZ-T | QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers |
| ISL4241EIRZ | QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers |
| ISL4245EIR-T | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL4243E | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:QFN Packaged, ±15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, +2.7V to +5.5V, 10Nanoamp, 250kbps, |
| ISL4243EIR | 功能描述:RS-232接口集成電路 TXRX 2.7-5.5V ESD 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: |
| ISL4243EIR-T | 功能描述:IC 3DRVR/5RCVR RS232 3V 32-QFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，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 |
| ISL4243EIRZ | 功能描述:RS-232接口集成電路 RS232 3V 3D/5R 15KV AUTODWN 32QFN IND 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: |
| ISL4243EIRZ-T | 功能描述:RS-232接口集成電路 RS232 3V 3D/5R 15KV AUTODWN 32QFN IND 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: |
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