NTE6850 NTE ELECTRONICS, NTE6850 Datasheet

NTE6850

Manufacturer Part Number

NTE6850

Description

Replacement Semiconductors ASYN COMM ADP 24DIP

Manufacturer

NTE ELECTRONICS

Datasheet

1.NTE6850.pdf (3 pages)

Specifications of NTE6850

Ic Interface Type

Serial

Supply Voltage Range

4.75V To 5.25V

Power Dissipation Pd

525mW

Operating Temperature Range

0Â°C To +70Â°C

Digital Ic Case Style

DIP

No. Of Pins

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Description:

The NTE6850 Asynchronous Communications Interface Adapter provides the data formatting and

control to interface serial asynchronous data communications information to bus organized systems

such as the NTE6800 Microprocessing Unit.

The bus interface of the NTE6850 includes select, enable, read/write, interrupt and bus interface logic

to allow data transfer over an 8–bit bidirectional data bus. The parallel data of the bus system is serial-

ly transmitted and received by the asynchronous data interface, with proper formatting and error

checking. The functional configuration of the ACIA is programmed via the data bus during system

initialization. A programmable control register provides variable word lengths, clock division ratios,

transmit control, receive control, and interrupt control. For peripheral or modem operation, three con-

trol lines are provided. These lines allow the ACIA to interface directly with the NTE6860 0–600 bps

digital modem.

Features:

D 8–Bit and 9–Bit Transmission

D Optional Even and Odd Parity

D Parity, Overrun and Framing Error Checking

D Programmable Control Register

D Optional 1, 16, and 64 Clock Modes

D Up to 1.0 Mbps Transmission

D False Start Bit Deletion

D Peripheral/Modem Control Functions

D Double Buffered

D One–Stop or Two–Stop Bit Operation

Absolute Maximum Ratings:

Supply Voltage, V

Input Voltage, V

Operating Temperature Range, T

Storage Temperature Range, T

Thermal Resistance, Junction–to–Ambient, R

Note 1. This device contains circuitry to protect the inputs against damage due to high static voltages

or electric fields; however, it is advised that normal precautions be taken to avoid application

of any voltage higher than maximum rated voltages to this high impedance circuit. Reliability

of operation is enhanced if unused inputs are tied to an appropriate logic voltage level (e.g.

either V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

or V

NMOS, Asynchronous Communications

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Integrated Circuit

Interface Adapter

NTE6850

thJA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55 to +150 C

–0.3 to +7.0V

0 to 70 C

120 C/W

Related parts for NTE6850

NTE6850 Summary of contents

Page 1

... NTE6800 Microprocessing Unit. The bus interface of the NTE6850 includes select, enable, read/write, interrupt and bus interface logic to allow data transfer over an 8–bit bidirectional data bus. The parallel data of the bus system is serial- ly transmitted and received by the asynchronous data interface, with proper formatting and error checking ...

Page 2

Electrical Characteristics: (V Parameter Input High Voltage Input Low Voltage Input Leakage Current R/W, CS0, CS1, CS2, Enable, RS CTS, DCD Hi–Z (Off–State) Input Current D0 – D7 Output High Voltage D0 – D7 ...

Page 3

Bus Timing Characteristics: (V Parameter Cycle Time Pulse Width, E Low Pulse Width, E High Clock Rise and Fall Time Address Hold Time Address Setup Time Before E Chip Select Setup Time Before E Chip Select Hold Time Read Data ...

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