|
|
PDF ELM626 Data sheet ( Hoja de datos )
| Número de pieza | ELM626 | |
| Descripción | RS232 Break Detector | |
| Fabricantes | ELM Electronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ELM626 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
|
No Preview Available !
ELM626
RS232 Break Detector
Description
The ELM626 is a complete circuit for detecting
break signals on RS232 lines, in an 8 pin package.
The circuit is similar to the ELM627 except that an
output pulse is not generated on power-up.
The threshold for break signal detection is user
selectable, allowing the circuit to respond to a
transmitted null character, <ctrl>@, at various baud
rates. This provides a convenient means for the
remote triggering of this circuit by simply shifting to a
lower baud rate and sending a null byte.
Two complementary high current outputs are
provided by the ELM626, so that further buffering is
not usually required. The output signal can be
selected to be either a continuous one (following the
TxD input line) or else a 100ms pulse output.
No external components are required for circuit
operation other than possibly a current limiting
resistor, as all timing references are generated
internally.
Applications
• Remote resetting of RS232 devices
• Edge triggered one-shot circuits
www.DataSh•eDeti4gUit.acollmy controlled sequencing schemes
• Watchdog type signal monitors
Features
• Low power CMOS design - typically 1mA at 5V
• No external timing elements required
• Complementary outputs
• Digitally controlled threshold timing
• Selectable output duration
• High current drive outputs - up to 25 mA
Connection Diagram
PDIP and SOIC
(top view)
VDD 1
Q2
Q3
P/C 4
8 VSS
7 T0
6 T1
5 TxD
Block Diagram
TxD 5
Programmable
Timer
67
T1 T0
Output
Logic
4
P/C
2Q
3Q
ELM626DSA
Elm Electronics – Circuits for the Hobbyist
< http://www.elmelectronics.com/ >
1 of 4
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet ELM626.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ELM621 | SERIAL THREE BIT PORT | ELM Electronics |
| ELM621LA | High efficiency 30V step up DC/DC converter |  ELM Technology |
| ELM622 | Infrared Remote Interpreter | ELM Electronics |
| ELM624 | Control L (LANC) to RS232 Interpreter | ELM Electronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |