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| 型号： | MAX249EQH+TD |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/38页 |
| 文件大小： | 0K |
| 描述： | IC RS-232 DRVR/RCVR 44-PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 6/10 |
| 规程： | RS232 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC（16.59x16.59） |
| 包装： | 带卷 (TR) |
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Tables 1a–1d define the control states. The MAX244
has no control pins and is not included in these tables.
The MAX246 has ten receivers and eight drivers with
two control pins, each controlling one side of the
device. A logic high at the A-side control input (ENA)
causes the four A-side receivers and drivers to go into
a three-state mode. Similarly, the B-side control input
(ENB) causes the four B-side drivers and receivers to
go into a three-state mode. As in the MAX245, one A-
side and one B-side receiver (RA5 and RB5) remain
active at all times. The entire device is put into shut-
down mode when both the A and B sides are disabled
(ENA = ENB = +5V).
The MAX247 provides nine receivers and eight drivers
with four control pins. The ENRA and ENRB receiver
enable inputs each control four receiver outputs. The
ENTA and ENTB transmitter enable inputs each control
four drivers. The ninth receiver (RB5) is always active.
The device enters shutdown mode with a logic high on
both ENTA and ENTB.
The MAX248 provides eight receivers and eight drivers
with four control pins. The ENRA and ENRB receiver
enable inputs each control four receiver outputs. The
ENTA and ENTB transmitter enable inputs control four
drivers each. This part does not have an always-active
receiver. The device enters shutdown mode and trans-
mitters go into a three-state mode with a logic high on
both ENTA and ENTB.
The MAX249 provides ten receivers and six drivers with
four control pins. The ENRA and ENRB receiver enable
inputs each control five receiver outputs. The ENTA
and ENTB transmitter enable inputs control three dri-
vers each. There is no always-active receiver. The
device enters shutdown mode and transmitters go into
a three-state mode with a logic high on both ENTA and
ENTB. In shutdown mode, active receivers operate in a
low-power receive mode at data rates up to 20kb/s.
__________Applications Information
Figures 5 through 25 show pin configurations and typi-
cal operating circuits. In applications that are sensitive
to power-supply noise, VCC should be decoupled to
ground with a capacitor of the same value as C1 and
C2 connected as close as possible to the device.
+5V-Powered, Multichannel RS-232
Drivers/Receivers
16
Maxim Integrated
MAX220–MAX249
相关PDF资料 |
PDF描述 |
|---|---|
| MC100EP16FDR2G | IC RCVR/DRVR 5V DIFF ECL 8-SOIC |
| MC100EP16VSDTG | IC RCVR/DRVR ECL DIFF VAR 8TSSOP |
| MAX248EQH+TD | IC RS-232 DRVR/RCVR 44-PLCC |
| MAX244EQH+TD | IC RS-232 DRVR/RCVR 44-PLCC |
| MC100EP16VSDG | IC RCVR/DRVR ECL DIFF VAR 8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX-25 | 功能描述:保险丝 MAX FUSE RoHS:否 制造商:Littelfuse 产品:Surface Mount Fuses 电流额定值:0.5 A 电压额定值:600 V 保险丝类型:Fast Acting 保险丝大小/组:Nano 尺寸:12.1 mm L x 4.5 mm W 安装风格: 端接类型:SMD/SMT 系列:485 |
| MAX-250 | 制造商:SLPOWER 制造商全称:SL Power Electronics 功能描述:250, 350 WATTS MULTIPLE OUTPUT |
| MAX2500ELM | 制造商:Maxim Integrated Products 功能描述: |
| MAX2500ELM-D | 制造商:Maxim Integrated Products 功能描述:COMPLETE CELLULAR BASEBAND-TO-RF TR - Rail/Tube |
| MAX2500ELM-T | 制造商:Maxim Integrated Products 功能描述:COMPLETE CELLULAR BASEBAND-TO-RF TRANSMITTERS - Tape and Reel |
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