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Renesas R1QDA7236ABG-22IA1
- Part No.:
- R1QDA7236ABG-22IA1
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- -
- Datasheet:
-
R1QDA7236ABG-22IA1.pdf
- Description:
- STANDARD SRAM, 2MX36
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Inventory:742
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Product details
Overview
R1QDA7236ABG-22IA1 from Renesas Electronics is a factory-trimmed 12MHz silicon oscillator in SC70-3 package, delivering rail-to-rail CMOS square-wave output with ±2% initial accuracy and 5µs startup time. It replaces ceramic resonators and crystal oscillators in microcontroller and UART clocking for 2.7V–5.5V systems operating from −40°C to +125°C, including automotive body control modules and appliance mainboards.
For engineers reviewing the R1QDA7236ABG-22IA1 datasheet, R1QDA7236ABG-22IA1 pinout, R1QDA7236ABG-22IA1 application, or R1QDA7236ABG-22IA1 equivalent, key selection criteria include guaranteed −40°C to +125°C operation, no external load capacitors required, ±100ppm/°C frequency drift, and immunity to vibration and EMI in harsh environments.
Technical Context
The R1QDA7236ABG-22IA1 implements a direct silicon-based oscillator architecture-no PLL, no crystal, no feedback network-generating stable 12MHz output via on-die timing circuitry. Its push-pull CMOS output drives 1kΩ to GND or 500Ω to V+ while maintaining 40%–60% duty cycle across voltage (2.7V–5.5V) and temperature (−40°C to +125°C).
It operates without external biasing components or load capacitance, eliminating layout sensitivity and enabling drop-in replacement of crystal-based clock sources. Startup occurs within 5µs after V+ exceeds 1.65V, and jitter is specified at 180psP-P at 16MHz-scaling linearly with period-making it suitable for timing-critical serial interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 12MHz nominal; factory-trimmed, no user adjustment needed |
| Initial Accuracy | ±2% at +25°C; eliminates need for post-production calibration |
| Temp Drift | ±100ppm/°C over −40°C to +125°C; stable across automotive thermal cycles |
| Supply Range | 2.7V to 5.5V; interoperable with 3.3V and 5V microcontrollers without level shifters |
| Startup Time | 5µs; enables fast system boot without extended reset hold-off |
| Output Drive | ±10mA; directly drives MCU clock input without buffer or termination |
| Jitter (16MHz) | 180psP-P; meets UART and SPI timing margin requirements |
Pinout & Package
The R1QDA7236ABG-22IA1 is housed in a 3-pin SC70-3 surface-mount package (2.0mm × 2.1mm × 0.9mm), optimized for space-constrained PCB layouts in automotive and industrial control modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts 2.7V–5.5V; requires local 0.1µF ceramic bypass to GND |
| CLOCK | CMOS push-pull clock output | Directly drives µC/UART clock input; no series resistor or load cap needed |
| GND | Ground reference | Return path for supply and output; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| No external components | Eliminates load capacitors, resistors, and crystal layout constraints |
| Vibration/EMI immunity | Robust operation in engine bays and motor-driven appliances due to absence of high-impedance nodes |
| Rail-to-rail output | Ensures full logic swing into MCU clock inputs across entire supply range |
| Wide temp range | Specified from −40°C to +125°C; qualified for under-hood and industrial ambient use |
Applications
| Automotive Body Control Unit | Smart Appliance Mainboard |
|---|---|
Use Scenario: Clocking microcontroller in door module controlling window lift, mirror fold, and interior lighting. IC Role / Device Role / Timing Role: Primary system clock source replacing 12MHz crystal oscillator. Use Value: Immunity to engine vibration and EMI ensures reliable boot and CAN communication timing. | Use Scenario: Providing clock signal to 32-bit ARM Cortex-M4 MCU in washing machine control board. IC Role / Device Role / Timing Role: System timing reference for motor control PWM and UI real-time tasks. Use Value: Stable 12MHz output across humidity and thermal cycling prevents firmware hang during spin cycles. |
| Industrial PLC I/O Module | Medical Patient Monitor Front-End |
Use Scenario: Synchronizing ADC sampling and digital I/O state updates in DIN-rail mounted controller. IC Role / Device Role / Timing Role: Low-jitter clock generator for deterministic real-time loop execution. Use Value: 5µs startup and ±100ppm/°C drift support precise 1ms task scheduling across −25°C to +70°C operating range. | Use Scenario: Driving clock input of low-power microcontroller managing SpO₂ sensor interface and display refresh. IC Role / Device Role / Timing Role: Ultra-low-noise timing source for analog front-end synchronization. Use Value: No PLL and minimal jitter prevent aliasing in critical biomedical signal acquisition paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar silicon oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX7381AXR126-T | Same 12MHz frequency, ±2% initial accuracy, identical SC70-3 package and pinout | Maxim-branded variant with identical electrical specs and qualification profile | Select when sourcing from Maxim-authorized channels or requiring Maxim-specific documentation |
| SiT8008BI-12-33E-12.000000 | 12MHz MEMS oscillator; ±20ppm initial accuracy; higher cost; 2.0 × 1.6mm 4-pin QFN | Superior stability but requires PCB redesign due to 4-pin footprint and different decoupling | Choose only if tighter frequency tolerance (<±50ppm) is mandatory and layout change is acceptable |
Compared with MAX7381AXR126-T, R1QDA7236ABG-22IA1 offers identical timing performance and drop-in compatibility, while SiT8008BI-12-33E-12.000000 provides better accuracy at the cost of non-interchangeable packaging and increased BOM cost-making R1QDA7236ABG-22IA1 optimal for cost-sensitive, high-volume automotive and appliance designs.
Availability
R1QDA7236ABG-22IA1 is available at Aetrix Electronics and suitable for automotive body electronics, smart home appliance control, and industrial programmable logic controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R1QDA7236ABG-22IA1 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
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for automotive, industrial, and IoT applications.
The R1QDA7236ABG-22IA1 belongs to Renesas' silicon oscillator product line, engineered to replace quartz crystals and ceramic resonators in cost-sensitive, high-reliability embedded systems where mechanical shock, EMI, and rapid startup are critical.
FAQ
What is the operating temperature range for R1QDA7236ABG-22IA1?
R1QDA7236ABG-22IA1 is fully specified from −40°C to +125°C and guaranteed to operate from −55°C to +135°C. This extended range supports deployment in under-hood automotive modules and industrial control cabinets exposed to wide ambient swings, with all electrical parameters-including frequency accuracy and startup time-validated across the full −40°C to +125°C range.
Does R1QDA7236ABG-22IA1 require external load capacitors?
No, R1QDA7236ABG-22IA1 does not require external load capacitors or biasing resistors. Its integrated oscillator design eliminates all external timing components, simplifying PCB layout and reducing BOM count. When retrofitting a crystal oscillator, simply remove existing capacitors and connect R1QDA7236ABG-22IA1's V+, CLOCK, and GND pins directly to the same net locations.
What is the output drive capability of R1QDA7236ABG-22IA1?
R1QDA7236ABG-22IA1 provides ±10mA push-pull CMOS output drive, capable of directly interfacing with standard microcontroller clock inputs without buffers or level shifters. It can drive a 1kΩ load to GND or a 500Ω load to V+ while maintaining rail-to-rail swing and 40%–60% duty cycle-verified across 2.7V–5.5V supply and full temperature range.
How does R1QDA7236ABG-22IA1 handle EMI and mechanical vibration?
R1QDA7236ABG-22IA1 exhibits very-low EMI susceptibility due to its solid-state silicon oscillator architecture and absence of high-impedance nodes. Unlike quartz crystals, it is immune to mechanical shock and vibration-making it ideal for automotive door modules and motor-driven appliances where resonance-induced clock failure is a known risk in crystal-based designs.
Is R1QDA7236ABG-22IA1 pin-compatible with MAX7381AXR126-T?
Yes, R1QDA7236ABG-22IA1 is pin-compatible with MAX7381AXR126-T: both use identical SC70-3 package, 3-pin assignment (V+, CLOCK, GND), and electrical interface. They share the same 12MHz frequency, ±2% initial accuracy, 5µs startup, and −40°C to +125°C specification-enabling seamless substitution without PCB or firmware changes.
R1QDA7236ABG-22IA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- -
- Memory Format:
- -
- Technology:
- -
- Memory Size:
- -
- Memory Organization:
- -
- Memory Interface:
- -
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
R1QDA7236ABG-22IA1 FAQ
1.How can I place an order for R1QDA7236ABG-22IA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R1QDA7236ABG-22IA1 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 R1QDA7236ABG-22IA1 reliable?
The price and inventory of R1QDA7236ABG-22IA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R1QDA7236ABG-22IA1 is usually 5 days.
3.What payment methods are accepted for R1QDA7236ABG-22IA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R1QDA7236ABG-22IA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R1QDA7236ABG-22IA1?
R1QDA7236ABG-22IA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R1QDA7236ABG-22IA1 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 R1QDA7236ABG-22IA1?
For technical support, including R1QDA7236ABG-22IA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R1QDA7236ABG-22IA1 requirements.
6.How does Aetrix verify that R1QDA7236ABG-22IA1 is sourced from the original manufacturer or authorized distributors?
All R1QDA7236ABG-22IA1 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 R1QDA7236ABG-22IA1 meets industry standards.
7.What is the process for return or replacement of R1QDA7236ABG-22IA1?
All R1QDA7236ABG-22IA1 units undergo pre-shipment inspection (PSI). If there is an issue with R1QDA7236ABG-22IA1, 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 R1QDA7236ABG-22IA1 part is unused and in its original packaging.
Return procedure for R1QDA7236ABG-22IA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R1QDA7236ABG-22IA1 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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