- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384661 > MAX3223EUP (MAXIM INTEGRATED PRODUCTS INC) 1レA Supply Current, True +3V to +5.5V RS 232 Transceiver with AutoShutdown PDF資料下載
參數(shù)資料
| 型號： | MAX3223EUP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 1レA Supply Current, True +3V to +5.5V RS 232 Transceiver with AutoShutdown |
| 中文描述： | LINE TRANSCEIVER, PDSO20 |
| 封裝： | 4.40 MM, MO-153AC, TSSOP-20 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 318K |
| 代理商： | MAX3223EUP |
M
1μA Supply-Current, True +3V to +5.5V
RS-232 Transceivers with AutoShutdown
6
_______________________________________________________________________________________
RS-232 Receivers
The MAX3221/MAX3223/MAX3243’s receivers convert
RS-232 signals to CMOS-logic output levels. All
receivers have one inverting three-state output. In shut-
down (
FORCEOFF
= low) or in AutoShutdown, the
MAX3221/MAX3223’s receivers are active (Table 1).
Driving
EN
high places the receiver(s) in a high-imped-
ance state. The MAX3243’s receivers are high imped-
ance when the part is shut down.
The MAX3243 has an always-active complementary
output (R2OUTB). R2OUTB is an extra output that mon-
itors receiver activity while the other receivers are high
impedance. This allows Ring Indicator to be monitored
without forward biasing other devices connected to the
receiver outputs. This is ideal for systems where V
CC
is
set to 0V in shutdown to accommodate peripherals,
such as UARTs (Figure 2).
MAX3243
I/O
CHIP
WITH
UART
CPU
RS-232
POWER
MANAGEMENT
UNIT OR
KEYBOARD
CONTROLLER
FORCEOFF
FORCEON
INVALID
MAX3243
T1OUT
R2OUTB
Tx
5k
UART
V
CC
T1IN
THREE-STATED
LOGIC
TRANSITION
DETECTOR
R2IN
PROTECTION
DIODE
R2OUT
FORCEOFF = GND
V
CC
TO
μ
P
Rx
PREVIOUS
RS-232
Tx
UART
SHDN = GND
V
CC
V
CC
GND
Rx
5k
(a)
OLDER RS-232: POWERED-DOWN UART DRAWS CURRENT FROM ACTIVE
RECEIVER OUTPUT IN SHUTDOWN.
(b)
NEW MAX3243: IN SHUTDOWN, R2OUTB IS USED TO MONITOR EXTERNAL
DEVICES AND R2OUT IS THREE STATED, ELIMINATING A CURRENT PATH
THROUGH THE UART'S PROTECTION DIODE.
GND
PROTECTION
DIODE
I
I
Figure 1. Interface Under Control of PMU
Figure 2. The MAX3243 detects RS-232 activity when the
UART and interface are shut down.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3223CAP | 1レA Supply Current, True +3V to +5.5V RS 232 Transceiver with AutoShutdown |
| MAX3223CPP | 1レA Supply Current, True +3V to +5.5V RS 232 Transceiver with AutoShutdown |
| MAX3248ECAI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3238E | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3238ECAI | 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 |
|---|---|
| MAX3223EUP+ | 功能描述:RS-232接口集成電路 3-5.5V 1Mbps Transceiver 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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3223EUP+T | 功能描述:RS-232接口集成電路 3-5.5V 1Mbps Transceiver 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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3223EUP-T | 功能描述:RS-232接口集成電路 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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3223IDB | 功能描述:RS-232接口集成電路 3-5.5V Multichannel Line Drvr/Rcvr 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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3223IDBE4 | 功能描述:RS-232接口集成電路 3-5.5V Multichannel Line Drvr/Rcvr 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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
發(fā)布緊急采購，3分鐘左右您將得到回復。