Analog Devices Inc./Maxim Integrated DS1073M-80

Overview

DS1073M-80 from Maxim Integrated is a user-programmable 3V fixed-frequency oscillator with dual outputs, delivering up to 80.000MHz output frequency, ±0.5% initial accuracy, and 2.7V–3.6V supply operation. It integrates on-chip prescaler (÷1, ÷2, ÷4), programmable divider (N = 2–513), and non-volatile EEPROM for field configuration. Used in embedded timing control where flexible clock generation without external components is required.

For engineers reviewing the DS1073M-80 datasheet, DS1073M-80 pinout, DS1073M-80 application, or DS1073M-80 equivalent, this page provides verified functional identity, validated pin roles, confirmed industrial-grade temperature support (–40°C to +85°C), real-world output enable and power-down timing behavior, and two field-validated alternative oscillators with documented parameter trade-offs.

Technical Context

The DS1073M-80 implements a master oscillator followed by a selectable prescaler and a 9-bit programmable divider (N = 2–513), enabling precise frequency synthesis from ~29.3kHz to 80MHz. Its reference source is configurable via EEPROM: internal oscillator, external clock (≤50MHz), or fundamental-mode crystal (≤25MHz).

It features synchronous output gating via OE pin (glitch-free disable/enable), dual-purpose I/O pin (serial programming input / main output), and PDN/SELX pin supporting either power-down mode (active-low, <0.8µA standby) or dynamic reference switching (internal ↔ external). OUT0 provides buffered reference output unaffected by OE but disabled during power-down.

Key Specifications

Pinout & Package

DS1073M-80 is housed in a 300-mil 8-pin DIP package (through-hole mounting, 0.3" width), suitable for prototyping, legacy PCBs, and industrial control modules requiring mechanical robustness and serviceability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable oscillator applications.

Compared with Si5351A-B-GM and ICS843002AGI-01LFT, the DS1073M-80 uniquely balances field programmability, single-supply simplicity, through-hole DIP packaging, and sub-1% total variation - making it the only choice when retrofitting legacy boards with adaptable, self-contained timing.

Availability

DS1073M-80 is available at Aetrix Electronics and suitable for industrial automation, embedded controller timing, and legacy system upgrades requiring stable component supply, long-lifecycle availability, and through-hole manufacturability.

Supply support for DS1073M-80 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.

The DS1073 product line was designed as a family of programmable, low-cost, single-chip oscillators targeting cost-sensitive and field-configurable timing needs in industrial and embedded systems - eliminating crystals, capacitors, and buffer ICs.

FAQ

What is the maximum output frequency of the DS1073M-80?

The DS1073M-80 is factory-configured for a maximum output frequency of 80.000MHz, as indicated by its suffix "-80". This value represents the upper limit achievable when using the internal oscillator with M=1 (prescaler bypassed) and N=2 (minimum divider). Actual output depends on programmed M/N values and selected reference source (internal, external, or crystal).

Can the DS1073M-80 operate over industrial temperature range?

Yes, the DS1073M-80 supports industrial temperature operation from –40°C to +85°C. Its AC electrical characteristics specify ±2.5% combined frequency variation over this range, and DC parameters (e.g., supply current up to 50mA) are guaranteed under these conditions. The "M" suffix denotes the 300-mil DIP package variant qualified for industrial use.

How is the DS1073M-80 programmed, and what interface does it use?

The DS1073M-80 is programmed via a 1-Wire-compatible serial interface using its I/O pin. Programming mode is entered by applying a ~5kΩ pullup from I/O to VCC before power-up. Bus commands (e.g., Write MUX Register [02H], Write DIV Register [01H]) allow configuration of prescaler, divider, reference selection, and power-down behavior - all stored permanently in on-chip EEPROM.

Does the DS1073M-80 require external components to function?

No, the DS1073M-80 requires no external components for basic operation. Its internal oscillator, prescaler, divider, and output buffers are fully integrated. External components are optional: a crystal (between XTAL and OSCIN), an external clock (applied to OSCIN), or a pullup resistor (for programming mode only). No load capacitors, resistors, or buffers are needed for standard use.

What is the purpose of the OUT0 pin on the DS1073M-80?

The OUT0 pin on the DS1073M-80 provides a buffered copy of the selected reference clock - either the internal oscillator (after prescaling), or the external/crystal input - prior to division by N. It is unaffected by the OE pin but disabled during power-down. Setting EN0=1 in the MUX register disables OUT0 to reduce power consumption, making it ideal for applications needing both a main clock (I/O) and a debug/reference signal (OUT0).