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PDF ML145428 Data sheet ( Hoja de datos )
| Número de pieza | ML145428 | |
| Descripción | Asynchronous-to-Synchronous and Synchronous-to-Asynchronous Converter | |
| Fabricantes | LANSDALE Semiconductor | |
| Logotipo |  |
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ML145428
Asynchronous–to–Synchronous
and Synchronous–to–
Asynchronous Converter
Legacy Device: Motorola MC145428
The ML145428 Data Set Interface provides asynchronous-to-synchronous
and synchronous-to-asynchronous data conversion. It is ideally suited for
voice/data digital telesets supplying an EIA-232 compatible data port into a
synchronous transmission link. Other applications include: data multiplexers,
concentrators, data-only switching, and PBX-based local area networks. This
low-power CMOS device directly interfaces with either the 64 kbps or 8kbps
channel of Motorola’s MC145422 and MC145426 Universal Digital Loop
Transceivers (UDLTs), as well as the MC145421 and MC145425 Second
Generation Universal Digital Loop Transceivers (UDLT II).
• Provides the Interface Between Asynchronous Data Ports and
Synchronous Transmission Lines
• Up to 128 kbps Asynchronous Data Rate Operation
• Up to 2.1 Mbps Synchronous Data Rate Operation
• On-Board Bit Rate Clock Generator with Pin Selectable Bit Rates of
300, 1200, 1400, 4800, 9600, 19200 and 38400 bps or an Externally
Supplied 16 Times Bit Rate Clock
• Accepts Asynchronous Data Words of 8 or 9 Bits in Length
• False Start Detection Provided
• Automatic Sync Insertion and Checking
• Single 5 V Power Supply
• Low Power Consumption of 5 mW Typical
• Application Notes AN943 and AN946
• Operating Temperature Range TA = –40º to +85ºC.
TxS
TxD
DL
BR1-BR3
BCLK
BRCLK
BLOCK DIAGRAM
DATA
STRIPPER
BAUD
RATE
GEN
Tx
FIFO
SYNCHRONOUS
CHANNEL
TRANSMITTER
DCO
CONTROL
DOE
DIE
DCLK
CM
RESET
20
1
P DIP 20 = RP
PLASTIC
CASE 732
SOG 20 = -6P
20 PLASTIC
CASE 751D
1
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
P DIP 20
SOG 20
MC145428P ML145428RP
MC145428DW ML145428-6P
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
PIN ASSIGNMENT
TxS 1
TxD 2
DL 3
BRCLK 4
BCLK 5
BR1 6
BR2 7
BR3 8
SB 9
VSS 10
20 VDD
19 RESET
18 DCO
17 DOE
16 CM
15 DCLK
14 DIE
13 DCI
12 RxS
11 RxD
RxD DATA
Rx SYNCHRONOUS
SB
FORMATTER
FIFO
CHANNEL
RECEIVER
DCI
RxS
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| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet ML145428.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ML145428 | Asynchronous-to-Synchronous and Synchronous-to-Asynchronous Converter | LANSDALE Semiconductor |
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