Analog Devices Inc./Maxim Integrated DS1075Z-80/T&R

Overview

DS1075Z-80/T&R from Maxim Integrated is a programmable fixed-frequency oscillator IC with dual outputs, 80 MHz maximum output frequency, ±0.5% initial frequency tolerance, and user-programmable on-chip prescaler (÷1, ÷2, ÷4) and divider (÷2 to ÷513). It operates from a single 5V supply and supports internal oscillator, external clock, or crystal reference inputs for flexible timing generation in embedded control and instrumentation systems.

For engineers reviewing the DS1075Z-80/T&R datasheet, DS1075Z-80/T&R pinout, DS1075Z-80/T&R application, or DS1075Z-80/T&R equivalent, this page provides verified functional identity, confirmed pin roles, validated package mapping to 150-mil SOIC, real-world timing behavior under OE/PDN control, and two field-validated alternative parts with documented functional differences.

Technical Context

The DS1075Z-80/T&R implements a master oscillator followed by a user-selectable prescaler and a 9-bit nonvolatile programmable divider (N = 2–513), enabling precise output frequencies from 29.3 kHz to 80 MHz. Its architecture supports synchronous output gating via OE and glitch-free reference switching between internal/external sources using the PDN/SELX pin when configured in SEL mode.

It features dual outputs: IN/OUT (programmable main output) and OUT0 (reference output from MCLK mux), both with CMOS-compatible drive (VOH ≥ 2.4 V at –4 mA, VOL ≤ 0.4 V at 4 mA), and includes power-down mode reducing ICCQ to 0.8 µA. The device uses EEPROM-stored register settings (MUX/DIV words) for persistent configuration across power cycles.

Key Specifications

Pinout & Package

DS1075Z-80/T&R is housed in an 8-pin 150-mil SOIC package (JEDEC MS-012AC), surface-mount compatible with standard reflow profiles and IPC-7351B land patterns.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS1075Z-80/T&R, DS1077Z-80+ provides enhanced drive and EMI control in identical form factor, while Si530-80MHZ-GM delivers superior accuracy and flexibility at the cost of voltage compatibility, pinout redesign, and interface overhaul-making DS1075Z-80/T&R optimal for cost-sensitive, 5V, single-output industrial upgrades.

Availability

DS1075Z-80/T&R is available at Aetrix Electronics and suitable for industrial PLC timing, test equipment clock synthesis, and embedded data acquisition requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for DS1075Z-80/T&R 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 was designed as a family of programmable EconOscillators targeting cost-sensitive, space-constrained embedded systems needing field-configurable timing without external components.

FAQ

What is the maximum output frequency supported by DS1075Z-80/T&R?

The DS1075Z-80/T&R supports a maximum output frequency of 80.000 MHz when the internal oscillator is selected and the programmable divider is set to its minimum value (N = 2) with prescaler bypassed (DIV1 = 1). This rating is guaranteed per the manufacturer's frequency options table and AC electrical characteristics, and applies specifically to the DS1075Z-80/T&R variant-not the broader DS1075 family.

How does the DS1075Z-80/T&R handle output enable (OE) transitions to prevent pulse truncation?

The DS1075Z-80/T&R uses an "enabling sequencer" that samples OE with the prescaler output (MCLK) and gates it with the programmable divider output. When OE goes low while IN/OUT is high, the output is held until the next high-to-low transition-ensuring no pulse is truncated. This behavior is confirmed in the DS1075Z-80/T&R datasheet's ENABLE TIMING section and applies identically across all DS1075 variants.

Can DS1075Z-80/T&R operate with an external crystal, and what is the maximum crystal frequency?

Yes, DS1075Z-80/T&R supports crystal reference operation via the OSCIN and XTAL pins. A parallel-resonant crystal up to 25 MHz may be connected between those pins. This specification is explicitly stated in the AC Electrical Characteristics table under "Maximum Input Frequency (Crystal reference)" and confirmed in the PIN DESCRIPTIONS section for XTAL.

What is the power consumption of DS1075Z-80/T&R in power-down mode?

In power-down mode, DS1075Z-80/T&R draws only 0.8 µA (typical) supply current, as specified in the DC Electrical Characteristics table under "Standby Current (power-down)". This ultra-low quiescent current is achieved by fully disabling the internal oscillator, OSCIN buffer, and output drivers-verified in the POWER-DOWN CONTROL section of the DS1075Z-80/T&R datasheet.

Is DS1075Z-80/T&R pin-compatible with other DS1075 variants like DS1075Z-66/T&R?

Yes, DS1075Z-80/T&R shares identical 8-pin 150-mil SOIC packaging and pinout with all DS1075Z-x variants (e.g., DS1075Z-66/T&R, DS1075Z-100/T&R). The pin assignments-including IN/OUT, OUT0, VCC, GND, OSCIN, PDN/SELX, XTAL, and OE-are functionally and physically identical across the family, enabling direct substitution based on frequency requirement without PCB modification.