- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383361 > MAX3232ECUP (MAXIM INTEGRATED PRODUCTS INC) 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors PDF資料下載
參數(shù)資料
| 型號： | MAX3232ECUP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | DUAL LINE TRANSCEIVER, PDSO20 |
| 封裝： | 4.40 MM, MO-153AC, TSSOP-20 |
| 文件頁數(shù)： | 9/26頁 |
| 文件大?。?/td> | 893K |
| 代理商： | MAX3232ECUP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁
M
/
±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,
Up to 1Mbps, True RS-232 Transceivers
_______________________________________________________________________________________
9
Detailed Description
Dual Charge-Pump Voltage Converter
The MAX3222E/MAX3232E/MAX3237E/MAX3241E/
MAX3246Es’ internal power supply consists of a regu-
lated dual charge pump that provides output voltages
of +5.5V (doubling charge pump) and -5.5V (inverting
charge pump) over the +3.0V to +5.5V V
CC
range. The
charge pump operates in discontinuous mode; if the
output voltages are less than 5.5V, the charge pump is
enabled, and if the output voltages exceed 5.5V, the
charge pump is disabled. Each charge pump requires
a flying capacitor (C1, C2) and a reservoir capacitor
(C3, C4) to generate the V+ and V- supplies (Figure 1).
RS-232 Transmitters
The transmitters are inverting level translators that con-
vert TTL/CMOS-logic levels to ±5V EIA/TIA-232-compli-
ant levels.
The MAX3222E/MAX3232E/MAX3237E/MAX3241E/
MAX3246E transmitters guarantee a 250kbps data rate
with worst-case loads of 3k
in parallel with 1000pF,
providing compatibility with PC-to-PC communication
software (such as LapLink). Transmitters can be par-
alleled to drive multiple receivers or mice.
The MAX3222E/MAX3237E/MAX3241E/MAX3246E
transmitters are disabled and the outputs are forced
into a high-impedance state when the device is in shut-
down mode (
SHDN
= GND). The MAX3222E/
MAX3232E/MAX3237E/MAX3241E/MAX3246E permit
the outputs to be driven up to ±12V in shutdown.
The MAX3222E/MAX3232E/MAX3241E/MAX3246E
transmitter inputs do not have pullup resistors. Connect
unused inputs to GND or V
CC
. The MAX3237E’s trans-
mitter inputs have a 400k
active positive-feedback
resistor, allowing unused inputs to be left unconnected.
MAX3237E MegaBaud Operation
For higher-speed serial communications, the
MAX3237E features MegaBaud operation. In
MegaBaud operating mode (MBAUD = V
CC
), the
MAX3237E transmitters guarantee a 1Mbps data rate
with worst-case loads of 3k
in parallel with 250pF for
+3.0V < V
CC
< +4.5V. For +5V ±10% operation, the
MAX3237E transmitters guarantee a 1Mbps data rate
into worst-case loads of 3k
in parallel with 1000pF.
RS-232 Receivers
The receivers convert RS-232 signals to CMOS-logic
output levels. The MAX3222E/MAX3237E/MAX3241E/
MAX3246E receivers have inverting three-state outputs.
Drive
EN
high to place the receiver(s) into a high-
impedance state. Receivers can be either active or
inactive in shutdown (Table 1).
MAX3222E
MAX3232E
MAX3237E
MAX3241E
MAX3246E
5k
R_ IN
R_ OUT
C2-
C2+
C1-
C1+
V-
V+
V
CC
C4
C3
C1
C2
0.1
μ
F
V
CC
T_ OUT
T_ IN
GND
7k
150pF
MAX3222E
MAX3232E
MAX3237E
MAX3241E
MAX3246E
5k
R_ IN
R_ OUT
C2-
C2+
C1-
C1+
V-
V+
V
CC
C4
C3
C1
C2
0.1
μ
F
V
CC
T_ OUT
T_ IN
GND
3k
1000pF
(2500pF, MAX3237E only)
MINIMUM SLEW-RATE TEST CIRCUIT
MAXIMUM SLEW-RATE TEST CIRCUIT
Figure 1. Slew-Rate Test Circuits
LapLink is a trademark of Traveling Software.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3232EEUE | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3232EEUP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3237ECAI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3237EEAI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3241ECTJ | 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 |
|---|---|
| MAX3232ECUP+ | 功能描述:RS-232接口集成電路 3-5.5V 250kbps 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3232ECUP+G071 | 功能描述:RS-232接口集成電路 3-5.5V 250kbps 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3232ECUP+T | 功能描述:RS-232接口集成電路 3-5.5V 250kbps 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3232ECUP+TG071 | 功能描述:RS-232接口集成電路 3-5.5V 250kbps 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3232ECUP-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(fēng)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(fù)。