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Analog Devices Inc./Maxim Integrated DS1088LU-66+T
- Part No.:
- DS1088LU-66+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1088LU-66+T.pdf
- Description:
- IC CLOCK GENERATOR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,960
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Product details
Overview
DS1088LU-66+T from Maxim Integrated is a factory-calibrated, fixed-frequency EconOscillator™ generating a 66.6MHz square-wave output with ±1.0% frequency tolerance over voltage and temperature, 2.7V–3.6V supply, and active-low power-down control-used in POS terminals, cable modems, and computer peripherals for stable clocking without external timing components.
For engineers reviewing the DS1088LU-66+T datasheet, DS1088LU-66+T pinout, DS1088LU-66+T application, or DS1088LU-66+T equivalent, key selection criteria include output frequency accuracy, power-down response time (≤7µs), supply current at 133MHz (24mA max), duty cycle stability (40–60%), and µSOP-8 package compatibility with high-density PCB layouts.
Technical Context
The DS1088LU-66+T integrates a voltage-controlled oscillator (80–160MHz range) followed by a programmable prescaler (÷1, ÷2, ..., ÷256) to deliver its factory-set 66.6MHz output. It uses on-chip EEPROM to store configuration, eliminating external components.
Power management is implemented via the active-low PDN pin, which disables the oscillator and output within ≤7µs and reduces supply current to 10µA. Startup stabilization requires ~512 internal clock cycles (~100µs at 66.6MHz), ensuring reliable clock assertion after power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 66.6 MHz - precisely factory-programmed; no trimming required. |
| Frequency Tolerance | ±1.0% over full voltage (2.7–3.6V) and temperature (-20°C to +85°C) - ensures timing compliance in unregulated environments. |
| Supply Voltage | 2.7V to 3.6V - compatible with 3.3V logic systems and tolerant of rail droop. |
| Power-Down Current | 10 µA - enables ultra-low standby power in battery-backed or energy-sensitive designs. |
| Output Duty Cycle | 40–60% - meets setup/hold timing margins for standard CMOS clock receivers. |
| Load Capacitance | 15–50 pF - supports direct connection to typical microcontroller or PHY clock inputs without external buffering. |
| Power-Up Stabilization | 100 µs - guarantees valid clock signal delivery within one microcontroller reset timeout window. |
Pinout & Package
DS1088LU-66+T is housed in an 8-pin µSOP package (package code U8+1, outline 21-0036), with exposed pad grounded per Maxim's land pattern 90-0092. Pin 1 is OUT; pins 2 and 3 are VCC; pins 4 and 5 are GND; pin 6 is PDN; pins 7 and 8 are DNC (internally grounded, must remain unconnected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Oscillator Output | CMOS-compatible square wave; drives 15–50pF loads directly; no external pull-up needed. |
| 2, 3 (VCC) | Power Supply | Dual VCC pins reduce supply impedance; require local 0.01µF + 0.1µF ceramic decoupling. |
| 4, 5 (GND) | Ground Reference | Dual GND pins minimize ground bounce; connect to solid ground plane under exposed pad. |
| 6 (PDN) | Active-Low Power-Down Control | Pull high (≥0.7×VCC) to enable; drive low (≤0.3×VCC) for ≤7µs shutdown; no external pull-up required if driven by GPIO. |
| 7, 8 (DNC) | Do Not Connect | Internally tied to GND; must be left floating-no soldering or routing permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Calibrated Fixed Frequency | 66.6MHz output trimmed at wafer/test level-eliminates manual calibration, BOM count, and board space for crystal + load caps. |
| No External Timing Components | Self-contained oscillator core-reduces design risk from capacitor tolerance drift, PCB parasitics, or layout sensitivity. |
| Low-Power Power-Down Mode | 10µA standby current enables >10-year battery life in always-on peripheral controllers when clock is gated. |
| Wide Operating Temperature Range | -20°C to +85°C operation-validates use in commercial-grade printers, POS enclosures, and cable modem chassis without thermal derating. |
| Tight Frequency Stability | ±1.0% total variation across voltage and temperature-meets USB 2.0, Ethernet PHY, and display interface clock tolerance requirements. |
Applications
| POS Terminal Clocking | Cable Modem Synchronization |
|---|---|
Use Scenario: Provides master clock to microcontroller and payment interface ICs in compact, fanless retail POS hardware operating at ambient temperatures up to +60°C. IC Role / Device Role / Timing Role: Primary system clock source replacing quartz crystal + oscillator circuit; delivers jitter-controlled 66.6MHz to MCU and secure element. Use Value: Eliminates crystal aging drift and cold-start delay; maintains <±1.0% frequency accuracy across seasonal temperature swings and input rail sag. | Use Scenario: Supplies reference clock to DOCSIS-compliant QAM modulator and MAC controller in residential cable modems deployed in attic or garage environments. IC Role / Device Role / Timing Role: Low-jitter, single-ended clock generator for upstream/downstream data path timing and packet timestamping. Use Value: Meets DOCSIS 3.0 spectral mask requirements via stable 66.6MHz base clock; power-down mode cuts idle power during deep-sleep states. |
| Printer Engine Controller | Computer Peripheral Hub |
Use Scenario: Drives laser scanner motor controller and page rasterizer ASIC in monochrome laser printers with tight thermal constraints near fuser assembly. IC Role / Device Role / Timing Role: Dedicated clock source for real-time motion control loop and image processing pipeline. Use Value: Maintains precise 66.6MHz timing under thermal transients (+20°C to +85°C ramp); avoids frame skew or print banding caused by clock drift. | Use Scenario: Generates synchronous clock for USB 2.0 hub controller and embedded flash memory interface in multi-port docking stations. IC Role / Device Role / Timing Role: System-level clock distributor enabling simultaneous high-speed peripheral enumeration and storage access. Use Value: Delivers 66.6MHz with 40–60% duty cycle-ensures clean edge alignment for USB packet framing and NAND read/write strobes without additional PLL conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-frequency oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-66.6MHZ-GL0 | LVDS output, ±50ppm stability, 2.5V/3.3V supply, 4-pin SMT package | Requires differential termination; suited for high-noise industrial backplanes, not single-ended logic interfaces | Select only if system demands LVDS signaling and tighter stability; not drop-in for DS1088LU-66+T's CMOS output and µSOP footprint. |
| AK2-66.600MHZ-E | ±100ppm initial tolerance, 1.8V–3.6V supply, 4-pin SMD, no power-down pin | Lacks active power management; higher frequency drift over temperature; smaller package limits thermal dissipation at 133MHz max | Choose for cost-sensitive, always-on applications where 100ppm tolerance suffices and power gating is unnecessary. |
Compared with Si510-66.6MHZ-GL0 and AK2-66.600MHZ-E, DS1088LU-66+T offers integrated power-down control, guaranteed ±1.0% accuracy over full commercial range, and µSOP-8 footprint optimized for space-constrained consumer electronics-making it optimal for POS, printer, and peripheral designs requiring simplicity and reliability.
Availability
DS1088LU-66+T is available at Aetrix Electronics and suitable for POS terminals, cable modems, and computer peripherals requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for DS1088LU-66+T 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) designs precision analog, mixed-signal, and timing solutions for industrial, communications, and consumer applications.
The DS1088L family delivers low-cost, factory-programmed oscillators targeting cost-sensitive, high-volume applications where crystal-based solutions add cost, size, and qualification complexity.
FAQ
What is the exact output frequency of DS1088LU-66+T?
The DS1088LU-66+T is factory-programmed to deliver a precise 66.6MHz square-wave output. This value is trimmed during final test and guaranteed across the full operating temperature and voltage range, with no user adjustment required. The "66" in the part number directly denotes this calibrated frequency, and datasheet Table "Ordering Information" explicitly lists DS1088LU-66+ as 66.6MHz.
Does DS1088LU-66+T require external capacitors or resistors?
No, DS1088LU-66+T operates as a self-contained oscillator and requires no external timing components. Only two ceramic decoupling capacitors (0.01µF and 0.1µF) placed near the VCC and GND pins are mandatory for stable operation. No load capacitors, pull-up/pull-down resistors, or feedback networks are needed-simplifying layout and reducing BOM count.
How does the power-down function work on DS1088LU-66+T?
The DS1088LU-66+T features an active-low PDN pin (Pin 6). Driving PDN low disables the internal oscillator and output within ≤7µs, reducing supply current to 10µA. To re-enable, hold PDN high for ≥2 output cycles plus 10µs deglitching time. The output resumes after ~100µs stabilization (512 internal clock cycles at 66.6MHz).
What is the package type and pin compatibility of DS1088LU-66+T?
DS1088LU-66+T uses an 8-pin µSOP package (outline 21-0036, land pattern 90-0092) with exposed pad grounded. Pins 1–6 follow standard oscillator pinout (OUT, VCC, VCC, GND, GND, PDN); pins 7–8 are DNC (internally grounded, must remain unconnected). It is not pin-compatible with 4-pin oscillators or SOIC packages due to differing pin count and layout.
Is DS1088LU-66+T RoHS-compliant and lead-free?
Yes, DS1088LU-66+T is RoHS-compliant and lead-free, indicated by the "+" suffix in the part number per Maxim Integrated's ordering conventions. The device meets JEDEC J-STD-020 moisture sensitivity level 1 and supports standard reflow profiles up to 260°C peak temperature, with soldering verified per industry standards.
DS1088LU-66+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- EconOscillator™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Clock Generator
- PLL:
- No
- Input:
- Clock
- Output:
- Clock
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:1
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 66.6MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -20°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-uMAX/uSOP
DS1088LU-66+T FAQ
1.How can I place an order for DS1088LU-66+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1088LU-66+T 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 DS1088LU-66+T reliable?
The price and inventory of DS1088LU-66+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1088LU-66+T is usually 5 days.
3.What payment methods are accepted for DS1088LU-66+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1088LU-66+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1088LU-66+T?
DS1088LU-66+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1088LU-66+T 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 DS1088LU-66+T?
For technical support, including DS1088LU-66+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1088LU-66+T requirements.
6.How does Aetrix verify that DS1088LU-66+T is sourced from the original manufacturer or authorized distributors?
All DS1088LU-66+T 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 DS1088LU-66+T meets industry standards.
7.What is the process for return or replacement of DS1088LU-66+T?
All DS1088LU-66+T units undergo pre-shipment inspection (PSI). If there is an issue with DS1088LU-66+T, 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 DS1088LU-66+T part is unused and in its original packaging.
Return procedure for DS1088LU-66+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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