Analog Devices Inc./Maxim Integrated DS1075M-60

Overview

DS1075M-60 from Maxim Integrated is a user-programmable fixed-frequency oscillator IC with dual outputs, delivering 60.000 MHz maximum output frequency, 0.5% initial frequency tolerance, and ±1% variation over temperature and supply voltage. It integrates an on-chip prescaler (÷1, ÷2, ÷4), programmable divider (N = 2–513), and nonvolatile EEPROM for field configuration, enabling clock generation in embedded timing, microcontroller clocking, and digital system synchronization without external components.

For engineers reviewing the DS1075M-60 datasheet, DS1075M-60 pinout, DS1075M-60 application, or DS1075M-60 equivalent, this device supports flexible reference selection (internal oscillator, external clock, or crystal), synchronous output enable (OE), power-down control (PDN/SELX), and glitch-free reference switching-critical for stable clock provisioning in industrial control and test equipment.

Technical Context

The DS1075M-60 implements a master oscillator followed by a user-selectable prescaler and a 9-bit programmable divider (N = 2–513), with all configuration stored in on-chip EEPROM. Its dual-output architecture provides OUT (programmed frequency) and OUT0 (reference clock, buffered MCLK or EXTCLK), both with CMOS-compatible drive strength (VOH ≥ 2.4 V at –4 mA, VOL ≤ 0.4 V at 4 mA).

It supports three reference modes-internal oscillator, external clock via OSCIN, or crystal between OSCIN and XTAL-with mode selection controlled either statically via MUX register bits (E/I, PDN) or dynamically via SELX pin when PDN bit = 0. Output gating is synchronized to the prescaler output (MCLK) to prevent pulse truncation during OE assertion.

Key Specifications

Pinout & Package

DS1075M-60 is housed in a 300-mil 8-pin DIP package (through-hole mounting, 0.3" width, 0.1" pitch), compatible with standard prototyping and industrial PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1075M-60, DS1077Z-60 offers identical functionality in SOIC-8 for space-constrained designs, while Si5351A-B-GM provides broader frequency agility at the cost of external crystal dependency and loss of integrated power-down control.

Availability

DS1075M-60 is available at Aetrix Electronics and suitable for industrial automation, embedded controller timing, and test instrumentation requiring stable component supply, long-lifecycle availability, and field-programmable clock configuration.

Supply support for DS1075M-60 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 DS1075 product line delivers self-contained, field-programmable clock solutions targeting applications where flexibility, reliability, and minimal external components are critical-especially in legacy 5 V systems and cost-sensitive industrial designs.

FAQ

What is the default output frequency of DS1075M-60 at power-up?

The DS1075M-60 ships from the factory configured for half its maximum operating frequency, i.e., 30.000 MHz. This default is set by the DIV register value (N = 2) and applies unless custom programming is ordered. The DS1075M-60 retains this setting in EEPROM until reprogrammed using the 1-Wire™ interface and appropriate pull-up resistor during power-up.

Can DS1075M-60 operate with a crystal reference, and what are the limits?

Yes, DS1075M-60 supports crystal reference operation with a fundamental-mode crystal connected between OSCIN (Pin 5) and XTAL (Pin 7). The maximum crystal frequency is 25 MHz. The crystal must be rated for parallel resonance and operate within the device's specified load capacitance range; no external capacitors are required as internal compensation is provided. DS1075M-60 uses the crystal to generate the master clock before prescaling and division.

How does the power-down mode of DS1075M-60 differ from output disable via OE?

DS1075M-60 power-down mode (activated via PDN/SELX pin when PDN bit = 1) fully disables the internal oscillator, OSCIN buffer, and all outputs, reducing supply current to 0.8 µA. In contrast, OE only gates the OUT signal while leaving the oscillator and internal counters running. DS1075M-60 power-down thus saves significantly more energy and eliminates all clock-related noise, but requires longer recovery time (~1 ms) versus OE's sub-cycle response.

Is DS1075M-60 pin-compatible with other DS1075 variants like DS1075M-80 or DS1075M-100?

Yes, DS1075M-60 is pin-compatible and functionally identical to DS1075M-80 and DS1075M-100, differing only in factory-programmed maximum output frequency (60 MHz vs. 80/100 MHz). All share the same 8-pin DIP package, pinout, register structure, and programming interface. System-level replacement is possible if the target frequency falls within the lower-rated variant's capability and timing margins allow.

What is the role of the I/O pin (Pin 1) in DS1075M-60, and how is it used for programming?

The I/O pin (Pin 1) serves dual roles: as the main oscillator output (OUT) during normal operation, and as the serial data input for programming the MUX and DIV registers via 1-Wire™ protocol. Programming requires a ~5 kΩ pull-up to VCC at power-up to force programming mode; once entered, the DS1075M-60 releases the pin, allowing the bus master to transmit commands and 9-bit register data LSB-first. After programming, power-cycling without the pull-up restores normal operation.