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Analog Devices Inc./Maxim Integrated MAX7393ATTLY+
- Part No.:
- MAX7393ATTLY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Oscillators
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
MAX7393ATTLY+.pdf
- Description:
- OSC XO 922.0000 KHZ CMOS SMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,398
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Product details
Overview
The MAX7393ATTLY+ from Maxim Integrated is a precision silicon oscillator with autoenable functionality, replacing quartz crystals and ceramic resonators in +2.4V to +3.6V systems. It delivers factory-set 922kHz output with ±1.3% total accuracy over -40°C to +125°C (μDFN package), 5ns rise/fall time, and no external components required - ideal for space-constrained USB and white-goods timing applications.
For engineers reviewing the MAX7393ATTLY+ datasheet, MAX7393ATTLY+ pinout, MAX7393ATTLY+ application, or MAX7393ATTLY+ equivalent, key selection criteria include its autoenable (CLKIN) logic, μDFN-6 package footprint, ±1.3% wide-temp accuracy, and compatibility with microcontroller clock inputs without impedance matching or load capacitance.
Technical Context
The MAX7393ATTLY+ integrates a temperature-compensated BiCMOS oscillator core with autoenable logic that monitors CLKIN for an inverted feedback signal to autonomously enable/disable oscillation. Its push-pull CMOS CLOCK output drives 1kΩ to ground or 500Ω to VCC2 within 300mV of rails, eliminating termination needs.
It operates across -40°C to +125°C with dual supply rails (VCC and VCC2), both requiring 0.1µF ceramic decoupling to GND. Startup time is 2ms, and peak-to-peak jitter is not specified for 922kHz but is characterized at 16MHz (180ps) and 48MHz (140ps) for higher-frequency variants in the family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 922kHz - factory-trimmed, no calibration needed |
| Total Accuracy | ±1.3% over -40°C to +125°C - guaranteed for μDFN package |
| Supply Voltage | +2.4V to +3.6V on both VCC and VCC2 - supports single-rail or split-rail clock domain alignment |
| Rise/Fall Time | 5ns - ensures clean edge integrity into capacitive loads ≤10pF |
| Duty Cycle | 40% to 60% - stable across voltage/temperature for reliable sampling |
| Operating Current | 4.4mA at 922kHz - enables low-power always-on timing in battery-backed systems |
| Shutdown Current | <2µA - achieved via CLKIN-driven auto-shutdown, reducing system standby power |
Pinout & Package
MAX7393ATTLY+ uses a 6-pin, 2mm × 2mm μDFN package with exposed pad (not connected; no EP terminal). All pins are surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Core supply input | Bypassed to GND with 0.1µF capacitor; must be tied to VCC2 for proper biasing |
| 2 - GND | Ground reference | Common return for analog/digital sections; connects to PCB ground plane |
| 3 - I.C. | Internally connected | Mandatory connection to GND - floating or misconnected I.C. causes functional failure |
| 4 - CLKIN | Autoenable control input | Monitors inverted clock feedback; high-impedance or constant level disables oscillator |
| 5 - CLOCK | CMOS push-pull output | Rail-to-rail, 5ns edges, drives µC clock inputs directly without series resistor or termination |
| 6 - VCC2 | Output driver supply | Independent rail for CLOCK output stage; bypassed separately to minimize switching noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Autoenable via CLKIN | Eliminates external enable logic by using returned clock inversion - reduces BOM count and layout area |
| No external components | Removes load capacitors, bias resistors, and crystal matching networks - simplifies retrofit from crystal-based designs |
| Robust environmental operation | Specified for -40°C to +125°C with ±1.3% accuracy - suitable for automotive under-hood and industrial motor-control timing |
| Low-jitter CMOS output | 5ns edges and tight duty cycle ensure reliable setup/hold timing margins for high-speed µC peripherals |
| Humidity/vibration resistance | Silicon MEMS-like construction avoids crystal fragility - improves field reliability in handheld and appliance applications |
Applications
| USB Peripheral Timing | CAN Node Clock Source |
|---|---|
Use Scenario: Providing master clock to USB 2.0 transceivers in embedded host controllers where crystal replacement is required for size or shock resistance. IC Role / Device Role / Timing Role: Precision 922kHz reference for USB SOF (Start of Frame) generation and data rate synchronization. Use Value: ±1.3% accuracy meets USB suspend/resume timing tolerance; 5ns edges prevent metastability in clock domain crossing logic. | Use Scenario: Supplying baud-rate clock to CAN transceivers in automotive body control modules operating at extended temperature. IC Role / Device Role / Timing Role: Stable 922kHz base clock for CAN controller bit-timing synthesis (e.g., 1Mbps nominal). Use Value: Guaranteed -40°C to +125°C performance eliminates thermal drift-induced bit errors; μDFN footprint saves PCB area near ECU connectors. |
| White-Goods Microcontroller Clock | Industrial Sensor Hub Timing |
Use Scenario: Driving main MCU clock in washing machine control boards where vibration and humidity degrade quartz stability. IC Role / Device Role / Timing Role: Primary system clock source enabling real-time motor control and UI responsiveness. Use Value: Autoenable (CLKIN) allows MCU to gate oscillator during sleep modes - cutting system standby current below 2µA. | Use Scenario: Synchronizing multi-sensor data acquisition in factory-floor condition monitoring nodes with constrained board space. IC Role / Device Role / Timing Role: Low-jitter 922kHz reference for ADC sampling clocks and SPI peripheral timing. Use Value: No external components reduce component count and assembly cost; ±1.3% accuracy ensures consistent sample interval across temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SiT8008BI-11-18E-922.000000 | ±20ppm (±0.002%) frequency stability over -40°C to +85°C; 3.3V-only supply; 2.0 × 1.6mm 4-pin SMD | Higher accuracy but narrower temp range; lacks autoenable; requires external enable logic for power gating | Select when ultra-low ppm stability is mandatory and system design accommodates separate enable control. |
| DS3231M+T&R | ±5ppm RTC with integrated TCXO and I²C interface; 3.3V supply; 8-pin TDFN; includes battery backup path | Combines oscillator + real-time clock; not a drop-in replacement - adds complexity and cost for pure timing use cases | Choose only if calendar/timekeeping functionality is required alongside timing; otherwise over-specified. |
Compared with SiT8008BI-11-18E-922.000000 and DS3231M+T&R, the MAX7393ATTLY+ uniquely integrates autoenable logic and guarantees ±1.3% accuracy across full -40°C to +125°C range in a minimal 2mm × 2mm μDFN, making it optimal for thermally aggressive, space-limited applications needing autonomous power management.
Availability
MAX7393ATTLY+ is available at Aetrix Electronics and suitable for USB peripheral timing, CAN node clocking, and white-goods microcontroller applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX7393ATTLY+ 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 high-performance analog and mixed-signal ICs for industrial, computing, and communications markets, with emphasis on integration, reliability, and power efficiency.
The MAX7393/MAX7394 product line targets crystal replacement in harsh-environment digital systems, delivering factory-trimmed silicon oscillators with integrated enable logic and wide-temperature accuracy for automotive, appliance, and industrial control timing.
FAQ
What is the operating temperature range guaranteed for MAX7393ATTLY+?
The MAX7393ATTLY+ is fully specified and production-tested over -40°C to +125°C. Its ±1.3% total frequency accuracy is guaranteed across this entire range for the μDFN package, making it suitable for under-hood automotive and industrial motor-drive applications where ambient temperatures exceed +85°C.
Does MAX7393ATTLY+ require external load capacitors like quartz crystals?
No, the MAX7393ATTLY+ does not require external load capacitors or biasing components. It is a complete oscillator solution with integrated temperature compensation and buffered CMOS output. When retrofitting a crystal-based design, all crystal-related capacitors and resistors must be removed from the board to avoid signal degradation or startup failure.
How does the autoenable function work on MAX7393ATTLY+?
The MAX7393ATTLY+ uses its CLKIN pin to monitor an inverted version of its own CLOCK output - typically provided by a microcontroller's clock generator. When an active inversion is detected, the oscillator enables automatically; absence of inversion places it in shutdown mode with <2µA supply current. This eliminates need for external enable circuitry.
Can MAX7393ATTLY+ drive a microcontroller clock input directly?
Yes, the MAX7393ATTLY+ CLOCK output is a rail-to-rail CMOS push-pull driver capable of directly interfacing with standard µC clock inputs. It requires no series resistor or termination, supports CL ≤10pF, and operates with VCC2 matched to the µC's supply voltage - ensuring robust signal integrity without impedance-matching concerns.
What is the significance of the "+" suffix in MAX7393ATTLY+?
The "+" suffix in MAX7393ATTLY+ denotes a lead(Pb)-free and RoHS-compliant package per EU Directive 2011/65/EU. It confirms the μDFN package uses matte tin plating and complies with Maxim Integrated's green manufacturing standards - critical for export compliance and end-product environmental certification.
MAX7393ATTLY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- MAX7393
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Base Resonator:
- -
- Type:
- XO (Standard)
- Frequency:
- 922 kHz
- Function:
- Enable/Disable
- Output:
- CMOS
- Voltage - Supply:
- 2.4V ~ 3.6V
- Frequency Stability:
- -
- Absolute Pull Range (APR):
- -
- Operating Temperature:
- -40°C ~ 125°C
- Spread Spectrum Bandwidth:
- -
- Current - Supply (Max):
- 4.4mA
- Ratings:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-VDFN (3.2x2.5)
- Size / Dimension:
- 0.118" L x 0.118" W (3.00mm x 3.00mm)
- Height - Seated (Max):
- 0.031" (0.80mm)
MAX7393ATTLY+ FAQ
1.How can I place an order for MAX7393ATTLY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX7393ATTLY+ 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 MAX7393ATTLY+ reliable?
The price and inventory of MAX7393ATTLY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX7393ATTLY+ is usually 5 days.
3.What payment methods are accepted for MAX7393ATTLY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX7393ATTLY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX7393ATTLY+?
MAX7393ATTLY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX7393ATTLY+ 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 MAX7393ATTLY+?
For technical support, including MAX7393ATTLY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX7393ATTLY+ requirements.
6.How does Aetrix verify that MAX7393ATTLY+ is sourced from the original manufacturer or authorized distributors?
All MAX7393ATTLY+ 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 MAX7393ATTLY+ meets industry standards.
7.What is the process for return or replacement of MAX7393ATTLY+?
All MAX7393ATTLY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX7393ATTLY+, 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 MAX7393ATTLY+ part is unused and in its original packaging.
Return procedure for MAX7393ATTLY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX7393ATTLY+ Tags
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