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Analog Devices Inc./Maxim Integrated DS1233DZ-10+
- Part No.:
- DS1233DZ-10+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
DS1233DZ-10+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT223-3
- Quantity:
- Payment:
- Shipping:
Inventory:546
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Product details
Overview
DS1233DZ-10+ from Maxim Integrated (now Analog Devices) is a precision 5V microprocessor supervisory circuit with 10% VCC trip point (4.25–4.49 V), 350 ms reset pulse width, and internal 5 kΩ pull-up resistor. It monitors power supply integrity, asserts active-low RESET during out-of-tolerance conditions, and supports Motorola 68XXX and HC16 microprocessors in embedded control systems.
For engineers reviewing the DS1233DZ-10+ datasheet, DS1233DZ-10+ pinout, DS1233DZ-10+ application, or DS1233DZ-10+ equivalent, key selection criteria include guaranteed 350 ms reset timeout, ±10% VCC detection accuracy, TO-92/SOT-223 package compatibility, -40°C to +85°C operation, and integrated pull-up eliminating external components.
Technical Context
The DS1233DZ-10+ uses a precision temperature-compensated voltage reference and comparator to detect VCC deviations beyond ±10% of nominal 5 V. Its internal power-fail logic forces RESET low on undervoltage and holds it active for 250–450 ms after recovery - typ. 350 ms - ensuring stable processor boot.
It operates with no external timing components, features 100 ns VCC-to-RST propagation delay, and delivers 8 mA sink capability at 0.4 V output low level. The device requires no external pull-up due to its internal 3.75–6.25 kΩ resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 4.25 V (min) to 4.49 V (max); precise 10% tolerance detection for 5 V supply monitoring |
| Reset Pulse Width | 250–450 ms (typ. 350 ms); ensures full power and processor stabilization before release |
| Output Sink Current | 8 mA @ 0.4 V; drives standard TTL/CMOS reset inputs without buffering |
| Operating Temp | -40°C to +85°C; qualified for industrial-grade embedded and control applications |
| Internal Pull-Up | 3.75–6.25 kΩ; eliminates need for external resistor in most microprocessor reset circuits |
| VCC Propagation Delay | 100 ns; fast response to supply transients prevents spurious resets |
| Supply Voltage Range | 1.2 V to 5.5 V; supports brown-out detection down to 1.2 V while maintaining reset assertion |
Pinout & Package
DS1233DZ-10+ is available in TO-92 (3-pin) and SOT-223 (4-pin) packages. The Z suffix denotes TO-92 packaging per Maxim's ordering nomenclature. Pin functions are identical across variants except for the additional GROUND pin in SOT-223.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 | GROUND | Primary ground reference for voltage sensing and output stage |
| PIN 2 | RESET (active-low) | Open-drain output asserted low during VCC fault or power-up; sinks up to 8 mA |
| PIN 3 | VCC | Power supply input monitored for ±10% deviation; also powers internal reference and comparator |
| PIN 4 (SOT-223 only) | GROUND | Secondary ground terminal for thermal and noise performance; electrically tied to PIN 1 |
Key Features
| Feature | Design Value |
|---|---|
| Auto-restart on power failure | Guaranteed RESET assertion during VCC dropout and sustained for 350 ms post-recovery |
| Integrated voltage reference | Temperature-compensated bandgap reference enables stable ±10% trip accuracy over full temp range |
| No external timing components | Monolithic RC timing eliminates capacitor dependency and PCB footprint |
| Microprocessor compatibility | Designed specifically for Motorola 68XXX and HC16 families with TTL/CMOS-level reset interface |
| Low-cost packaging | TO-92 option reduces BOM cost and simplifies through-hole assembly for legacy designs |
Applications
| Industrial PLC Controller | Point-of-Sale Terminal |
|---|---|
Use Scenario: Power interruption during transaction processing risks data corruption and firmware lockup. IC Role / Device Role / Timing Role: DS1233DZ-10+ monitors 5 V rail and forces hard reset if VCC drops below 4.25 V, then holds reset for 350 ms to ensure clean reboot. Use Value: Prevents partial writes to flash memory and guarantees deterministic startup sequence after brownout. | Use Scenario: Unstable wall-adapter supplies cause intermittent resets in retail kiosks operating 24/7. IC Role / Device Role / Timing Role: DS1233DZ-10+ provides accurate 10% threshold detection and eliminates false triggers from ripple or noise. Use Value: Reduces field returns by >90% compared to discrete RC reset circuits in same environment. |
| Medical Diagnostic Handheld | Building Automation Sensor Node |
Use Scenario: Battery-powered handheld devices experience gradual voltage sag during discharge cycles. IC Role / Device Role / Timing Role: DS1233DZ-10+ asserts RESET when VCC falls below 4.25 V and maintains it until stable 5 V is restored. Use Value: Ensures safe shutdown before critical sensor ADC or communication subsystem fails. | Use Scenario: Remote Zigbee/Thread nodes deployed in HVAC ducts face wide ambient temperature swings (-40°C to +85°C). IC Role / Device Role / Timing Role: DS1233DZ-10+ delivers consistent 350 ms reset hold time and ±10% trip accuracy across full industrial temperature range. Use Value: Eliminates cold-start failures and extends node uptime in unattended deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | Fixed 3.08 V reset threshold; 140 ms reset timeout; SOT-23-3 package | Designed for 3.3 V systems; shorter reset duration may not stabilize slower processors | Select only for 3.3 V rails requiring compact SOT-23 footprint |
| TPS3808G12DBVR | Adjustable threshold via external resistor; 200 ms min reset time; 1.5 µA quiescent current | Ultra-low power but lacks internal pull-up; requires external components for reset drive strength | Prefer for battery-powered designs where <2 µA sleep current is mandatory |
Compared with MAX809SEUR+T and TPS3808G12DBVR, the DS1233DZ-10+ uniquely combines fixed 5 V ±10% detection, 350 ms guaranteed reset hold, internal pull-up, and TO-92 compatibility - making it optimal for cost-sensitive, industrial 5 V microcontroller systems requiring robust, component-minimized reset supervision.
Availability
DS1233DZ-10+ is available at Aetrix Electronics and suitable for industrial PLC controllers, medical handheld diagnostics, building automation sensor nodes, and point-of-sale terminals requiring stable component supply and long-term manufacturability.
Supply support for DS1233DZ-10+ 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, automotive, communications, and computing markets.
The DS1233D series was developed as an EconoReset solution targeting cost-sensitive microprocessor reset supervision in 5 V embedded systems, emphasizing integration, reliability, and ease of use without external components.
FAQ
What is the exact VCC trip point range for DS1233DZ-10+?
The DS1233DZ-10+ has a guaranteed VCC trip point range of 4.25 V (minimum) to 4.49 V (maximum) at +25°C, corresponding to ±10% tolerance around nominal 5 V. This specification is maintained across the full -40°C to +85°C operating temperature range per the datasheet's DC electrical characteristics table.
Does DS1233DZ-10+ require an external pull-up resistor?
No, DS1233DZ-10+ does not require an external pull-up resistor. It integrates a 3.75–6.25 kΩ internal pull-up on the RESET pin, enabling direct connection to standard microprocessor reset inputs without additional components - a key design advantage over basic reset ICs.
What is the reset pulse width of DS1233DZ-10+ and how is it determined?
The DS1233DZ-10+ provides a reset pulse width of 250–450 ms, with a typical value of 350 ms. This timing is monolithically generated and does not depend on external capacitors or resistors. It ensures sufficient stabilization time for both the 5 V power supply and connected microprocessor before releasing the active-low RESET signal.
Which microprocessor families is DS1233DZ-10+ explicitly compatible with?
DS1233DZ-10+ is explicitly designed for compatibility with Motorola 68XXX series and HC16 microprocessors, as stated in its official documentation. Its output drive strength (8 mA sink), logic levels (TTL/CMOS-compatible), and timing behavior meet the reset interface requirements of these families without additional conditioning circuitry.
Can DS1233DZ-10+ be used in 3.3 V systems?
No, DS1233DZ-10+ is specified exclusively for 5 V systems with a ±10% trip point centered at 5 V (4.25–4.49 V). Using it in a 3.3 V system would result in continuous reset assertion, as VCC remains below the minimum trip threshold. For 3.3 V applications, consider alternatives like MAX809SEUR+T or DS1233A-10.
DS1233DZ-10+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- EconoReset
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.375V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 250ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
DS1233DZ-10+ FAQ
1.How can I place an order for DS1233DZ-10+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1233DZ-10+ 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 DS1233DZ-10+ reliable?
The price and inventory of DS1233DZ-10+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1233DZ-10+ is usually 5 days.
3.What payment methods are accepted for DS1233DZ-10+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1233DZ-10+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1233DZ-10+?
DS1233DZ-10+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1233DZ-10+ 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 DS1233DZ-10+?
For technical support, including DS1233DZ-10+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1233DZ-10+ requirements.
6.How does Aetrix verify that DS1233DZ-10+ is sourced from the original manufacturer or authorized distributors?
All DS1233DZ-10+ 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 DS1233DZ-10+ meets industry standards.
7.What is the process for return or replacement of DS1233DZ-10+?
All DS1233DZ-10+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1233DZ-10+, 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 DS1233DZ-10+ part is unused and in its original packaging.
Return procedure for DS1233DZ-10+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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