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Analog Devices Inc./Maxim Integrated DS1065T-60
- Part No.:
- DS1065T-60
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
DS1065T-60.pdf
- Description:
- ECONOSCILLATOR/DIV 60MHZ TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,890
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Product details
Overview
DS1065T-60 from Dallas Semiconductor (now Maxim Integrated) is a user-programmable fixed-frequency oscillator with internal prescaler and divider, delivering 60.000 MHz output from a single 5V supply in TO-92 package. It features nonvolatile EEPROM register storage, 0.5% initial frequency tolerance, ±3% variation over temperature and voltage, and dual-mode I/O pin for programming and oscillation.
For engineers reviewing the DS1065T-60 datasheet, DS1065T-60 pinout, DS1065T-60 application, or DS1065T-60 equivalent, key selection criteria include programmable divider range (2–513), prescaler options (÷1, ÷2, ÷4), 1-Wire™-based in-system programming, no external components required, and operation across 0°C to +70°C industrial temperature range.
Technical Context
The DS1065T-60 integrates a master internal oscillator followed by a user-selectable prescaler (÷1, ÷2, ÷4) and a 9-bit programmable divider (N = 2 to 513). Frequency configuration is stored in on-chip EEPROM and restored automatically at power-up in operation mode.
Its dual-function IN/OUT pin supports serial programming via 1-Wire™ protocol when pulled high at power-on; otherwise it functions as buffered CMOS oscillator output. Power-on reset includes oscillator stabilization (~1024 INTOSC cycles) before enabling output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 60.000 MHz - factory-configured maximum operating frequency for DS1065T-60 variant |
| Initial Tolerance | ±0.5% - ensures tight frequency accuracy at 25°C, 5V without calibration |
| Freq. Variation | ±3% - guaranteed stability across full 0°C to +70°C temp range and VCC = 4.75–5.25V |
| Supply Voltage | 5V ±5% - single-rail operation compatible with standard TTL/CMOS logic supplies |
| Programmable Divider | 2 to 513 - enables fine-grained frequency synthesis via 9-bit N register stored in EEPROM |
| Prescaler Options | ÷1, ÷2, ÷4 - selected via MSEL and M bits in MUX register; bypassable independently of divider |
| Power-Up Time | 0.1–1 ms - time from VCC application to stable oscillation, including internal stabilization delay |
Pinout & Package
DS1065T-60 is housed in a through-hole TO-92 (3-lead) package with bottom-view pinout: Pin 1 = I/O (dual-mode serial programming input / oscillator output), Pin 2 = VCC (5V supply), Pin 3 = GND (circuit ground).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I/O) | Serial Data Interface / Oscillator Output | Functions as IN during 1-Wire™ programming (with external ~5 kΩ pullup); becomes CMOS-compatible OUT after power-up in operation mode |
| 2 (VCC) | Power Supply Input | Accepts 4.75–5.25 V DC; powers internal oscillator, prescaler, divider, and EEPROM interface |
| 3 (GND) | Ground Reference | Provides return path for all internal circuitry; must be connected directly to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EEPROM storage | Retains programmed MUX/DIV register values across power cycles; eliminates need for external configuration memory |
| 1-Wire™ programming interface | Enables in-system frequency reconfiguration using standard 1-Wire™ bus master-no dedicated programmer required |
| No external components | Self-contained timing solution; requires only VCC, GND, and load capacitance ≤15 pF on output |
| Dual-mode I/O pin | Reduces board footprint and BOM count by combining programming port and clock output into single pin |
| Factory default configuration | Shipped preloaded with DIV=2, MSEL=1, DIV1=0 → outputs half-max frequency (30 MHz for DS1065T-60) |
Applications
| Industrial PLC Clock Source | Legacy Microcontroller Timing |
|---|---|
Use Scenario: Synchronizing scan cycles and I/O update timing in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary system clock generator providing stable 60 MHz reference to CPU and peripheral timers. Use Value: ±3% frequency stability over 0°C–70°C and 4.75–5.25 V ensures deterministic real-time behavior without recalibration. | Use Scenario: Replacing crystal+buffer solutions in aging 8-bit microcontroller designs where board space and component count are constrained. IC Role / Device Role / Timing Role: Drop-in clock source eliminating external crystal, capacitors, and buffer IC. Use Value: TO-92 footprint and single-supply operation reduce PCB area by >40% versus discrete oscillator implementations. |
| Test Equipment Frequency Calibration | Embedded Data Acquisition Trigger |
Use Scenario: Providing traceable, field-adjustable clock references in portable benchtop instruments requiring post-manufacture frequency trimming. IC Role / Device Role / Timing Role: Programmable reference oscillator supporting on-site calibration via 1-Wire™ interface. Use Value: In-field reprogramming enables correction of unit-to-unit drift without hardware modification or firmware update. | Use Scenario: Generating precise sampling clocks for 12-bit ADCs in battery-powered environmental sensors logging at fixed intervals. IC Role / Device Role / Timing Role: Low-jitter (100 ps typ.) clock source driving ADC conversion timing and data timestamping logic. Use Value: 0.5% initial tolerance and fast power-up (<1 ms) ensure accurate time-stamping from cold start with minimal energy overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1085S-60 | Higher max frequency (133 MHz), same TO-92 package and 1-Wire™ programming, but higher ICC (65 mA @ 60 MHz) | Supports faster microcontrollers and FPGAs; less suitable for low-power sensor nodes | Choose DS1085S-60 if system requires headroom beyond 60 MHz or tighter jitter spec (50 ps typ.) |
| Si5351A-B-GM | 3-output I²C-programmable clock generator in 24-QFN; supports fractional-N synthesis and multiple independent frequencies | Replaces multiple oscillators; requires PCB redesign and I²C infrastructure | Choose Si5351A-B-GM for multi-clock domain systems needing flexibility; DS1065T-60 remains optimal for single-output, low-cost, through-hole designs |
Compared with DS1085S-60 and Si5351A-B-GM, the DS1065T-60 offers lowest BOM cost and simplest integration for single-output, 60 MHz applications-requiring no layout changes, no additional communication buses, and no thermal derating concerns due to its 50 mA typical supply current.
Availability
DS1065T-60 is available at Aetrix Electronics and suitable for industrial automation, legacy embedded control, test instrumentation, and data acquisition systems requiring stable component supply and long-term obsolescence management.
Supply support for DS1065T-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
Dallas Semiconductor, now part of Maxim Integrated (a subsidiary of Analog Devices), pioneered silicon timing solutions with focus on integrated, programmable, and robust clock generation.
The DS1065 product line was designed to replace crystal-based oscillators in cost-sensitive, space-constrained industrial and embedded systems-delivering programmability, reliability, and ease of integration in legacy-compatible packages.
FAQ
What is the factory-default output frequency of DS1065T-60?
The DS1065T-60 ships with default register values that configure it to output half its maximum rated frequency: 30.000 MHz. This results from DIV=2, MSEL=1, and DIV1=0 settings loaded from EEPROM at power-up unless reprogrammed. The full 60.000 MHz output requires explicit programming of the MUX and DIV registers via the 1-Wire™ interface.
Can DS1065T-60 operate from a 3.3V supply?
No, DS1065T-60 is specified only for 5V ±5% operation (4.75–5.25 V). Its internal oscillator, EEPROM programming circuitry, and output driver are designed for 5V CMOS logic levels. Attempting 3.3V operation will result in failure to start, unstable output, or inability to enter programming mode. For 3.3V systems, consider pin-compatible alternatives like the Si5351 series with appropriate voltage translation.
How is the DS1065T-60 programmed, and what hardware is required?
DS1065T-60 uses a 1-Wire™ interface for programming: a ~5 kΩ pullup resistor between Pin 1 (I/O) and VCC at power-up initiates programming mode. A standard 1-Wire™ bus master (e.g., DS2480B or microcontroller GPIO with bit-banged 1-Wire™) sends 8-bit function commands (e.g., 01H to write DIV register) followed by 9 data bits. No dedicated programmer is needed-only a pullup resistor and host controller with 1-Wire™ capability.
Does DS1065T-60 require an external load capacitor on its output?
Yes, DS1065T-60 specifies a maximum load capacitance of 15 pF on the I/O pin when used as an oscillator output. Exceeding this value may degrade output amplitude, increase duty cycle distortion, or reduce maximum achievable frequency. A 10–15 pF ceramic capacitor to ground is recommended for optimal 60 MHz performance; no capacitor is needed during programming mode.
What is the meaning of "EconOscillator/Divider" in DS1065 documentation?
"EconOscillator/Divider" reflects the DS1065T-60's dual value proposition: it functions as both an economical oscillator (replacing crystals + buffers) and an on-chip frequency divider (enabling flexible clock synthesis). The term emphasizes cost reduction through integration-eliminating external timing components while retaining programmability-making it ideal for high-volume industrial and legacy embedded applications where bill-of-materials simplicity is critical.
DS1065T-60 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- -
- Type:
- -
- PLL:
- -
- Input:
- -
- Output:
- -
- Number of Circuits:
- -
- Ratio - Input:Output:
- -
- Differential - Input:Output:
- -
- Frequency - Max:
- -
- Divider/Multiplier:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
DS1065T-60 FAQ
1.How can I place an order for DS1065T-60 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1065T-60 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 DS1065T-60 reliable?
The price and inventory of DS1065T-60 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1065T-60 is usually 5 days.
3.What payment methods are accepted for DS1065T-60?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1065T-60 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1065T-60?
DS1065T-60 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1065T-60 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 DS1065T-60?
For technical support, including DS1065T-60 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1065T-60 requirements.
6.How does Aetrix verify that DS1065T-60 is sourced from the original manufacturer or authorized distributors?
All DS1065T-60 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 DS1065T-60 meets industry standards.
7.What is the process for return or replacement of DS1065T-60?
All DS1065T-60 units undergo pre-shipment inspection (PSI). If there is an issue with DS1065T-60, 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 DS1065T-60 part is unused and in its original packaging.
Return procedure for DS1065T-60:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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