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Analog Devices Inc./Maxim Integrated DS1073Z-901
- Part No.:
- DS1073Z-901
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS1073Z-901.pdf
- Description:
- DS1073 ECONOSCILLATOR/DIVIDER
- Quantity:
- Payment:
- Shipping:
Inventory:6,330
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Product details
Overview
DS1073Z-901 from Maxim Integrated is a user-programmable 3V fixed-frequency oscillator IC with dual outputs (I/O and OUT0), on-chip prescaler (÷1, ÷2, ÷4) and divider (÷2 to ÷513), internal oscillator reference, and power-down mode. It operates from 2.7V to 3.6V, achieves ±0.5% initial frequency accuracy at 25°C, and supports commercial temperature range (0°C to +70°C). It is used in embedded timing control where field-programmable clock generation without external components is required.
For engineers reviewing the DS1073Z-901 datasheet, DS1073Z-901 pinout, DS1073Z-901 application, or DS1073Z-901 equivalent, this page delivers verified technical context, real-world design meaning of specifications, validated pin functions, confirmed alternative options, and supply-ready procurement details - all grounded in Maxim's official DS1073 documentation.
Technical Context
The DS1073Z-901 implements a master oscillator followed by a user-selectable prescaler and a non-volatile programmable divider (N = 2–513), enabling precise output frequencies from ~29.3 kHz to 100 MHz. Its architecture supports three reference sources - internal oscillator, external clock, or fundamental-mode crystal - selected via EEPROM-configurable E/I and PDN bits.
It features synchronous output gating via OE (glitch-free disable/enable), dual-purpose I/O pin (serial programming input / oscillator output), and power-down sequencing that disables internal oscillation, buffers, and outputs in defined order. All register values are stored in on-chip EEPROM and restored automatically on power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 29.3 kHz to 100 MHz - covers standard microcontroller, FPGA, and interface clocking needs without external tuning components. |
| Initial Frequency Accuracy | ±0.5% at TA = 25°C, VCC = 3.15V - enables reliable timing margin for synchronous logic without calibration. |
| Temp/Voltage Variation | ±1% over 0°C to +70°C and 2.7V–3.6V - ensures stable operation across full commercial environment without derating. |
| Supply Voltage | 2.7V to 3.6V - compatible with modern 3V logic families and low-power systems; no level-shifting needed. |
| Power-Down Current | 0.8 µA - allows battery-backed or ultra-low-power standby states without external switches. |
| Output Drive | VOH ≥ 2.4V @ –2mA, VOL ≤ 0.4V @ 2mA - directly interfaces with TTL/CMOS loads driving 15 pF capacitive load. |
| Jitter | 100 ps (3σ) - suitable for moderate-speed digital timing (e.g., UART, SPI, GPIO clocks), not RF or high-speed SerDes. |
Pinout & Package
DS1073Z-901 is housed in a 150-mil SOIC-8 package (JEDEC MS-012AC), with lead finish SnPb and RoHS-compliant variants available per ordering suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O | Main oscillator output / serial programming data I/O | Functions as output in normal mode; becomes bidirectional serial port during programming (1-Wire protocol); delivers final divided clock signal. |
| OUT0 | Reference output | Provides buffered master clock (MCLK) before N-divider; unaffected by OE but disabled during power-down; can be permanently disabled via EN0 bit to reduce current. |
| VCC | Positive supply | 2.7V–3.6V analog/digital rail; powers all internal circuitry including oscillator, dividers, and output drivers. |
| GND | Ground reference | Common return path for supply, inputs, and outputs; must be low-impedance to minimize jitter and enable clean power-down recovery. |
| OSCIN | External clock input | Accepts up to 50 MHz CMOS-level clock; used when external reference overrides internal oscillator or crystal. |
| PDN/SELX | Power-down or reference select control | Configurable via PDN bit: active-low power-down (PDN=1) or dynamic internal/external reference switch (PDN=0). |
| XTAL | Crystal connection | Paired with OSCIN for fundamental-mode crystal (≤25 MHz); left open if crystal not used; no load capacitors required. |
| OE | Output enable | Synchronous, glitch-free gating: holds I/O low at next high-to-low transition; preserves phase relationship with master clock upon re-enable. |
Key Features
| Feature | Design Value |
|---|---|
| User-programmable divider (N = 2–513) | Enables precise frequency synthesis from single part number; eliminates need for multiple oscillator SKUs or external PLLs. |
| On-chip prescaler (÷1, ÷2, ÷4) | Extends low-frequency reach and simplifies division ratio selection; bypassable via MSEL bit for direct clock routing. |
| Non-volatile EEPROM register storage | Allows field programming pre-deployment; supports design iteration without PCB respin or component replacement. |
| Synchronous OE with enabling sequencer | Prevents pulse truncation and guarantees deterministic edge alignment - critical for gated clock domains in FPGAs or ASICs. |
| Three reference source options | Internal oscillator, external clock, or crystal - provides flexibility to trade off cost, accuracy, and board space without changing BOM. |
| Glitch-free PDN/SELX switching | Enables runtime clock source switching (e.g., failover to backup oscillator) with no metastability or output glitches. |
Applications
| Industrial PLC Timing | Medical Device Clock Management |
|---|---|
Use Scenario: Programmable clock generation for microcontroller and ADC sampling in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary system clock source with field-adjustable frequency to accommodate firmware updates or sensor calibration changes. Use Value: Eliminates need for multiple crystal SKUs; enables one-time PCB layout supporting variable timing requirements across product variants. |
Use Scenario: Low-power, stable clock for patient monitoring units requiring long battery life and regulatory compliance. IC Role / Device Role / Timing Role: Dual-output timing generator providing main MCU clock (I/O) and isolated reference (OUT0) for analog front-end synchronization. Use Value: Power-down mode reduces standby current to sub-µA; ±1% variation over temp/voltage meets IEC 60601 timing stability requirements. |
| Communications Module Clocking | Test Equipment Signal Generation |
Use Scenario: Clock provisioning for UART, SPI, and GPIO peripherals in cellular IoT modules operating across wide temperature ranges. IC Role / Device Role / Timing Role: Configurable oscillator with external clock fallback (via SELX) for redundancy in mission-critical comms links. Use Value: Seamless switch between internal and external references avoids clock interruption during oscillator failure or hot-swap events. |
Use Scenario: Benchtop test fixture requiring adjustable, stable clock signals for DUT stimulus and measurement synchronization. IC Role / Device Role / Timing Role: Field-programmable frequency source replacing multiple fixed crystals or function generator connections. Use Value: On-site reprogramming via 1-Wire interface enables rapid test setup changes without hardware modification or recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5351A-B-GM | 3-output I²C-programmable clock generator; wider frequency range (8 kHz–200 MHz); higher jitter (typ. 250 ps); requires external crystal. | Supports multi-frequency simultaneous outputs; better suited for complex SoC clock trees than single-output timing. | Choose Si5351A-B-GM when multiple synchronized clocks or I²C configurability outweighs DS1073Z-901's simplicity and zero-external-component advantage. |
| ICS843002AGI-01LFT | Fixed-frequency LVDS oscillator (100 MHz); no programmability; ±25 ppm stability; industrial temp; lower jitter (50 ps). | Used where absolute frequency stability and low jitter are prioritized over field adjustment capability. | Choose ICS843002AGI-01LFT only when fixed 100 MHz output suffices and DS1073Z-901's programmability adds no value. |
Compared with Si5351A-B-GM and ICS843002AGI-01LFT, DS1073Z-901 uniquely combines EEPROM-based field programming, dual outputs, power-down, and zero-external-component operation in a compact SOIC-8 - making it optimal for cost-sensitive, space-constrained designs needing post-manufacture timing flexibility.
Availability
DS1073Z-901 is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, communications modules, and test equipment requiring stable component supply with field-programmable timing capability.
Supply support for DS1073Z-901 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, medical, and communications applications.
The DS1073 family was designed as a low-cost, programmable "EconOscillator" targeting embedded systems where flexible, component-free clock generation replaces multiple fixed-frequency crystals and discrete dividers.
FAQ
What is the maximum output frequency supported by DS1073Z-901?
The DS1073Z-901 supports a maximum output frequency of 100 MHz when configured with the internal oscillator and appropriate prescaler/divider settings. This matches the DS1073M/Z-100 variant specification and is achievable using the on-chip 100 MHz master oscillator with DIV1 = 1 and MSEL = 1 (prescaler bypassed). Output frequency is programmable down to 29.3 kHz.
How is DS1073Z-901 programmed, and what interface does it use?
DS1073Z-901 is programmed using a 1-Wire-compatible serial interface via the I/O pin. Programming mode is entered by applying a ~5 kΩ pull-up resistor between I/O and VCC at power-up. The device supports four commands: Write/Read DIV Register (01H/A1H) and Write/Read MUX Register (02H/A2H), each transferring 9-bit data LSB-first. All register values are stored non-volatily in on-chip EEPROM.
Does DS1073Z-901 require external components to operate?
No, DS1073Z-901 requires no external components for basic operation. It integrates an internal oscillator, prescaler, divider, and EEPROM. External components are optional: a crystal (between XTAL and OSCIN), external clock (applied to OSCIN), or pull-up resistor (for programming mode only). No load capacitors, resistors, or bypass capacitors are mandated beyond standard VCC decoupling.
What is the function of the PDN/SELX pin on DS1073Z-901?
The PDN/SELX pin on DS1073Z-901 serves a dual role determined by the PDN bit in the MUX register: when PDN = 1, it acts as an active-low power-down control disabling oscillation and outputs; when PDN = 0, it functions as a dynamic reference selector - high = internal oscillator, low = external/crystal reference. This enables either ultra-low-power sleep or runtime clock source switching without glitching.
Can DS1073Z-901 generate two independent frequencies simultaneously?
No, DS1073Z-901 generates one primary output frequency on the I/O pin, derived from the master oscillator through prescaler and divider. The OUT0 pin provides a buffered copy of the master clock (MCLK) before the N-divider - so both outputs are harmonically related, not independent. OUT0 frequency equals INTOSC/M or EXTCLK, while I/O equals (INTOSC/M)/N or EXTCLK/N.
DS1073Z-901 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- EconOscillator™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Oscillator, Fixed Frequency (Dual)
- Count:
- -
- Frequency:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Current - Supply:
- 25 mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
DS1073Z-901 FAQ
1.How can I place an order for DS1073Z-901 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1073Z-901 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS1073Z-901 reliable?
The price and inventory of DS1073Z-901 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1073Z-901 is usually 5 days.
3.What payment methods are accepted for DS1073Z-901?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1073Z-901 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1073Z-901?
DS1073Z-901 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1073Z-901 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS1073Z-901?
For technical support, including DS1073Z-901 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1073Z-901 requirements.
6.How does Aetrix verify that DS1073Z-901 is sourced from the original manufacturer or authorized distributors?
All DS1073Z-901 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS1073Z-901 meets industry standards.
7.What is the process for return or replacement of DS1073Z-901?
All DS1073Z-901 units undergo pre-shipment inspection (PSI). If there is an issue with DS1073Z-901, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS1073Z-901 part is unused and in its original packaging.
Return procedure for DS1073Z-901:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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