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ML145442

LANSDALE Semiconductor
Part Number ML145442
Manufacturer LANSDALE Semiconductor
Description (ML145442 / ML145443) Single-Chip 300-Baud Modem
Published Mar 12, 2008
Detailed Description www.DataSheet4U.com ML145442 ML145443 Single–Chip 300–Baud Modem Legacy Device: Motorola MC145442B, MC145443B The ML14...
Datasheet PDF File ML145442 PDF File

ML145442
ML145442

Overview
www.
DataSheet4U.
com ML145442 ML145443 Single–Chip 300–Baud Modem Legacy Device: Motorola MC145442B, MC145443B The ML145442 and ML145443 silicon–gate CMOS single–chip low–speed modems contain a complete frequency shift keying (FSK) modulator, demodulator, and filter.
These devices are compatible with CCITT V .
21 (ML145442) and Bell 103 (ML145443) specifications.
Both devices provide full–duplex or half–duplex 300–baud data communication over a pair of telephone lines.
They also include a carrier detect circuit for the demodulator section and a duplexer circuit for direct operation on a telephone line through a simple transformer.
This Device Offers The Following Performance Features: • • • • • • • • • • • • • • • • ML145442 Compatible with CCITT V .
21 ML145443 Compatible with Bell 103 Low–Band and High–Band Band–Pass Filters On–Chip Simplex, Half–Duplex, and Full–Duplex Operation Originate and Answer Mode Analog Loopback Configuration for Self Test Hybrid Network Function On–Chip Carrier Detect Circuit On–Chip Adjustable Transmit Level and CD Delay Timing On–Chip Crystal Oscillator (3.
579 MHz) Single +5 V Power Supply Operation Internal Mid–Supply Generator Power–Down Mode Pin Compatible with MM74HC943 Capable of Driving –9 dBm into a 600 W Load Operating Temperature Range = TA –40° to +85°C P DIP 20 = RP PLASTIC DIP CASE 738 20 1 20 1 SOG 20 = -6P SOG PACKAGE CASE 751D CROSS REFERENCE/ORDERING INFORMATION LANSDALE MOTOROLA PACKAGE P DIP 20 H SO 20W P DIP 20 H SO 20W MC145442BP MC145442BDW MC145443BP MC145443BDW ML145442RP ML145442-6P ML145443RP ML145443-6P 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 DSI LB CD CDT RxD V DD CDA X out X in FB 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 TLA VAG Exl TxA RxA1 RxA2 SQT MODE V SS TxD Page 1 of 11 www.
lansdale.
com Issue b B ML145442, ML145443 www.
DataSheet4U.
com LANSDALE Semiconductor, Inc.
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