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参数资料
| 型号： | MAX3238EEAI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS-232 TRUE 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 46 |
| 类型： | 线路收发器 |
| 驱动器/接收器数： | 5/3 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
| 产品目录页面： | 1406 (CN2011-ZH PDF) |
______________________________________________________________Pin Description
7.5
-5.0
-7.5
0
1000
3000
5000
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
-2.5
5.0
MAX3238
TOC-01
LOAD CAPACITANCE (pF)
TRANSMITTER
OUTPUT
VOLTAGE
(V)
2000
4000
2.5
0
VOUT+
VOUT–
FOR DATA RATES UP TO 250kbps
1 TRANSMITTER 250kbps
4 TRANSMITTERS 15.6kbps
LOADED 3k
+ CL
14
4
2
0
1000
3000
5000
SLEW RATE
vs. LOAD CAPACITANCE
6
12
MAX3238-02
SLEW
RATE
(V/
s)
LOAD CAPACITANCE (pF)
2000
4000
10
8
+SLEW
–SLEW
1 TRANSMITTER 250kbps
4 TRANSMITTERS 15.6kbps
LOADED 3k
+ CL
70
20
10
0
1000
3000
5000
SUPPLY CURRENT vs. LOAD CAPACITANCE
WHEN TRANSMITTING DATA
30
60
MAX3238
TOC-03
SUPPLY
CURRENT
(mA)
LOAD CAPACITANCE (pF)
2000
4000
50
40
250kbps
120kbps
20kbps
__________________________________________Typical Operating Characteristics
(VCC = +3.3V, 250kbps data rate, 0.1F capacitors, all transmitters loaded with 3k
, TA = +25°C, unless otherwise noted.)
MAX3238
+3.0V to +5.5V, 1A, up to 250kbps, True
RS-232 Transceiver with AutoShutdown Plus
4
_______________________________________________________________________________________
Positive Terminal of Voltage-Doubler Charge-Pump Capacitor
C1+
28
+5.5V Generated by the Charge Pump
V+
27
+3.0V to +5.5V Supply Voltage
VCC
26
NAME
FUNCTION
1
C2+
Positive Terminal of Inverting Charge-Pump Capacitor
2
GND
Ground
PIN
3
C2-
Negative Terminal of Inverting Charge-Pump Capacitor
4
V-
-5.5V Generated by the Charge Pump
14
FORCEOFF
Force-Off Input. Drive low to shut down transmitters, receivers (except R1OUTB), and on-
board supply. This overrides AutoShutdown Plus and FORCEON (Table 1).
13
FORCEON
Force-Off Input. Drive high to override AutoShutdown Plus, keeping transmitters and
receivers on (FORCEOFF must be high) (Table 1).
8, 9, 11
R_IN
RS-232 Receiver Inputs (R1IN–R3IN)
5, 6, 7, 10, 12
T_OUT
RS-232 Transmitter Outputs (T1OUT–T5OUT)
25
C1-
Negative Terminal of Voltage-Doubler Charge-Pump Capacitor
18, 20, 21
R_OUT
TTL/CMOS Receiver Outputs (R3OUT–R1OUT)
17, 19, 22, 23, 24
T_IN
TTL/CMOS Transmitter Inputs (T5IN–T1IN)
16
R1OUTB
Noninverting Complementary Receiver Output. Always active.
15
INVALID
Output of the Valid Signal Detector. A logic “1” indicates if a valid RS-232 level is present
on receiver inputs.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3238EEAI+ | 功能描述:RS-232接口集成电路 3-5.5V 250kbps Transceiver RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3238EEAI+T | 功能描述:RS-232接口集成电路 3-5.5V 250kbps Transceiver RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3238EEAI-T | 功能描述:RS-232接口集成电路 3-5.5V 250kbps Transceiver RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3238EECAI | 制造商:Exar Corporation 功能描述:Line Transceiver, 5-Driver, 3-Receiver, 28 Pin, Plastic, SSOP |
| MAX3238EEEAI | 制造商:Exar Corporation 功能描述:Line Transceiver, 5-Driver, 3-Receiver, 28 Pin, Plastic, SSOP |
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