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Analog Devices Inc./Maxim Integrated DS1075M-66
- Part No.:
- DS1075M-66
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
DS1075M-66.pdf
- Description:
- IC OSC DL FX FREQ 66.667MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,131
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Product details
Overview
DS1075M-66 from Maxim Integrated is a user-programmable fixed-frequency oscillator with dual outputs, delivering 66.667 MHz maximum output frequency, 0.5% initial frequency tolerance, and ±1% variation over temperature and supply voltage. It operates from a single 5V supply, supports internal oscillator, external clock, or crystal reference, and includes synchronous output enable and power-down mode for low-power applications such as embedded timing control and programmable clock generation.
For engineers reviewing the DS1075M-66 datasheet, DS1075M-66 pinout, DS1075M-66 application, or DS1075M-66 equivalent, this page provides verified technical context, confirmed pin functions, real-world design meanings of key specs, and two validated alternative parts for frequency-flexible clocking solutions where programmable prescaler/divider capability and nonvolatile configuration are required.
Technical Context
The DS1075M-66 implements a master oscillator followed by a user-selectable prescaler (÷1, ÷2, ÷4) and a 9-bit programmable divider (N = 2 to 513), enabling precise output frequencies from 29.3 kHz to 66.667 MHz. Its architecture supports three reference sources-internal oscillator, external clock, or crystal-with glitch-free switching between internal/external references via the PDN/SELX pin when configured in SELX mode.
It features synchronous output gating via OE (no pulse truncation), power-down sequencing that disables oscillator and buffers to achieve 0.8 µA standby current, and nonvolatile EEPROM storage of MUX and DIV register settings. The IN/OUT pin serves dual roles: serial programming input during power-up with pull-up, then primary oscillator output in operation mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Frequency | 66.667 MHz - sets upper limit for system clock domains requiring stable high-speed timing without external PLLs. |
| Initial Frequency Tolerance | ±0.5% - ensures accurate timing at power-on before temperature/voltage drift compensation. |
| Freq. Variation (Temp + VCC) | ±1% - guarantees predictable jitter and phase stability across industrial operating range (0°C to 70°C, 4.75–5.25 V). |
| Supply Voltage | 4.75 V to 5.25 V - compatible with standard 5V logic rails and legacy industrial power systems. |
| Active Supply Current | 50 mA - measured at CL = 15 pF with both outputs active; defines thermal and PCB layout constraints for continuous operation. |
| Power-Down Current | 0.8 µA - enables ultra-low-power sleep states in battery-backed or energy-sensitive systems. |
| Jitter (Typical) | 100 ps - limits timing uncertainty in high-speed digital interfaces like parallel buses or synchronous logic sampling. |
Pinout & Package
DS1075M-66 is housed in a 300-mil 8-pin DIP package, optimized for through-hole prototyping and legacy board compatibility. Pin assignments are electrically identical to the SOIC variant (DS1075Z), ensuring functional interchangeability where mechanical fit permits.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O (Pin 1) | Programmable Input/Output | Serial programming interface during power-up with pull-up; becomes main oscillator output (OUT) in normal operation. |
| OUT0 (Pin 2) | Reference Output | Buffered master clock (MCLK) output; unaffected by OE but disabled during power-down; can be permanently disabled via EN0 bit. |
| VCC (Pin 3) | Power Supply | Single 5V supply input; requires local 0.1 µF decoupling to maintain oscillator stability and noise immunity. |
| GND (Pin 4) | Ground Reference | Analog/digital common return; must be low-impedance path to minimize ground bounce on output transitions. |
| OSCIN (Pin 5) | External Clock Input | Accepts up to 50 MHz external clock signal; used with XTAL for crystal reference or standalone clock source. |
| PDN/SELX (Pin 6) | Power-Down or Select Control | Configurable function: active-low power-down (PDN=1) or real-time internal/external reference switch (PDN=0). |
| XTAL (Pin 7) | Crystal Terminal | Connects to one side of crystal; other side to OSCIN; left open if crystal not used. |
| OE (Pin 8) | Output Enable | Synchronous gating: holds OUT low at next high-to-low transition; preserves phase alignment and prevents pulse truncation. |
Key Features
| Feature | Design Value |
|---|---|
| User-programmable prescaler (÷1, ÷2, ÷4) | Enables fine-grained frequency scaling without external components; MSEL and M bits configure bypass or division ratio. |
| 9-bit nonvolatile divider (N = 2–513) | Allows precise output frequency synthesis from same base oscillator; values stored in EEPROM survive power cycles. |
| Dual reference selection (INT/EXT/XTAL) | Supports flexible timing architecture: factory-trimmed internal oscillator or user-provided precision crystal/external clock. |
| Synchronous OE with glitchless disable | Guarantees clean output gating: OUT transitions only at defined edges, eliminating metastability in clock-gated logic. |
| Power-down mode with full oscillator shutdown | Reduces current to 0.8 µA by disabling internal oscillator, buffers, and counters-critical for low-duty-cycle systems. |
Applications
| Industrial PLC Timing | Legacy Embedded Controller Clock |
|---|---|
Use Scenario: Synchronizing I/O scan cycles and communication baud rates in programmable logic controllers with varying load conditions. IC Role / Device Role / Timing Role: Primary system clock generator with configurable frequency and robust power management for intermittent operation. Use Value: Eliminates need for multiple fixed-frequency oscillators; field-reprogrammability allows firmware-driven clock updates without hardware change. | Use Scenario: Providing stable 66.667 MHz clock to microcontrollers or FPGAs in legacy industrial equipment where board space and BOM count are constrained. IC Role / Device Role / Timing Role: Standalone EconOscillator replacing crystal + buffer + divider combinations in cost-sensitive designs. Use Value: Reduces component count by integrating oscillator, prescaler, divider, and output enable into single 8-pin DIP. |
| Test Equipment Reference Clock | Communications Module Timing |
Use Scenario: Serving as adjustable reference clock in automated test fixtures requiring traceable, repeatable frequency steps. IC Role / Device Role / Timing Role: Programmable timing source with nonvolatile register storage for calibration-defined frequencies. Use Value: Enables post-manufacture calibration via serial programming; eliminates trimming potentiometers or laser adjustment. | Use Scenario: Generating synchronized clocks for UART, SPI, or parallel data interfaces in modular communications hardware. IC Role / Device Role / Timing Role: Dual-output clock generator providing main system clock (OUT) and buffered reference (OUT0) for peripheral timing. Use Value: OUT0 maintains phase coherence with master clock while enabling independent enable/disable control for subsystem power management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1075Z-66 | Identical electrical specs and register map; uses 150-mil SOIC-8 package instead of 300-mil DIP. | Preferred for surface-mount production; requires rework for through-hole prototyping or legacy board repair. | Select DS1075Z-66 when PCB layout supports SOIC footprint and automated assembly is used. |
| DS1085S-66 | Higher max frequency (133 MHz), improved jitter (50 ps typ), but lacks crystal input (XTAL pin absent); uses different programming protocol. | Suitable for higher-performance clocking where crystal reference is unnecessary and tighter jitter is critical. | Choose DS1085S-66 only if system does not require crystal-based timing and board-level jitter budget is stricter than 100 ps. |
Compared with DS1075M-66, DS1075Z-66 offers identical functionality in a smaller SOIC package for volume production, while DS1085S-66 trades crystal support for higher speed and lower jitter-making DS1075M-66 the optimal choice when field-programmable crystal-referenced timing in DIP format is required.
Availability
DS1075M-66 is available at Aetrix Electronics and suitable for industrial automation, legacy embedded controller upgrades, and test equipment requiring stable component supply with long-term obsolescence mitigation.
Supply support for DS1075M-66 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 analog and mixed-signal ICs for industrial, communications, and computing applications.
The DS1075 series belongs to Maxim's EconOscillator/Divider product line, designed to replace discrete crystal oscillator + divider circuits with a single programmable, nonvolatile, low-cost timing solution for cost-sensitive and field-configurable systems.
FAQ
What is the maximum output frequency supported by DS1075M-66?
The DS1075M-66 supports a maximum output frequency of 66.667 MHz, as specified in the factory-programmed frequency option table. This value is fixed per part number and corresponds to half the maximum device capability (100 MHz for DS1075-100). The actual output depends on programmed prescaler and divider values but cannot exceed 66.667 MHz for DS1075M-66.
Does DS1075M-66 support crystal reference input?
Yes, DS1075M-66 supports crystal reference input via the XTAL and OSCIN pins. A crystal is connected between these two pins, and the internal oscillator circuitry uses it as the timing source. When configured via the E/I bit or PDN/SELX pin, the device selects the crystal reference over its internal oscillator or external clock input.
How is DS1075M-66 programmed for custom frequencies?
DS1075M-66 is programmed using a 1-Wire™-compatible serial interface on the I/O (Pin 1) pin. Programming requires applying a ~5 kΩ pull-up to VCC before power-up to enter programming mode, then issuing Write MUX and Write DIV commands to configure prescaler, divider, reference selection, and power-down behavior. Register values are stored nonvolatively in on-chip EEPROM.
What is the purpose of the OUT0 pin on DS1075M-66?
The OUT0 pin on DS1075M-66 provides a buffered copy of the master clock (MCLK) before division, making it useful as a stable reference for secondary timing domains. Unlike the main OUT pin, OUT0 is unaffected by the OE pin but is disabled during power-down. It can be permanently disabled via the EN0 bit to reduce power consumption when unused.
Can DS1075M-66 operate from a 3.3V supply?
No, DS1075M-66 is specified only for 5V operation (4.75 V to 5.25 V). Its internal oscillator, I/O buffers, and programming interface are designed for TTL-compatible 5V logic levels. Operating outside this range may cause functional failure, timing inaccuracy, or damage. For 3.3V systems, consider newer alternatives such as the MAX7375 or DS1086 series.
DS1075M-66 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- EconOscillator™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Oscillator, Fixed Frequency (Dual)
- Count:
- -
- Frequency:
- 66.667MHz
- Voltage - Supply:
- 4.75V ~ 5.25V
- Current - Supply:
- 35 mA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
DS1075M-66 FAQ
1.How can I place an order for DS1075M-66 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1075M-66 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 DS1075M-66 reliable?
The price and inventory of DS1075M-66 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1075M-66 is usually 5 days.
3.What payment methods are accepted for DS1075M-66?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1075M-66 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1075M-66?
DS1075M-66 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1075M-66 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 DS1075M-66?
For technical support, including DS1075M-66 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1075M-66 requirements.
6.How does Aetrix verify that DS1075M-66 is sourced from the original manufacturer or authorized distributors?
All DS1075M-66 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 DS1075M-66 meets industry standards.
7.What is the process for return or replacement of DS1075M-66?
All DS1075M-66 units undergo pre-shipment inspection (PSI). If there is an issue with DS1075M-66, 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 DS1075M-66 part is unused and in its original packaging.
Return procedure for DS1075M-66:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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