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Analog Devices Inc./Maxim Integrated DS1233DZ-5/T&R
- Part No.:
- DS1233DZ-5/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
DS1233DZ-5/T&R.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT223-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,289
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Product details
Overview
DS1233DZ-5/T&R from Maxim Integrated (now Analog Devices) is a 5V microprocessor supervisory circuit in SOT-223 package that monitors VCC, asserts active-low RESET for 350 ms after power recovery, and provides ±5% supply tolerance detection at 4.5–4.75 V. It integrates precision temperature-compensated voltage reference, internal 5 kΩ pull-up resistor, and operates from –40°C to +85°C - used in embedded controllers requiring reliable power-on reset.
For engineers reviewing the DS1233DZ-5/T&R datasheet, DS1233DZ-5/T&R pinout, DS1233DZ-5/T&R application, or DS1233DZ-5/T&R equivalent, key selection criteria include VCC trip point accuracy (4.5–4.75 V), guaranteed 250–450 ms reset pulse width, SOT-223 thermal performance, compatibility with Motorola 68XXX/HC16 microprocessors, and absence of external timing components.
Technical Context
The DS1233DZ-5/T&R implements a comparator-based power monitor using a precision temperature-compensated voltage reference to detect VCC deviations beyond ±5% of 5 V. Its internal logic ensures reset remains asserted for ≥250 ms (typ. 350 ms) after VCC returns to tolerance, independent of supply slew rate.
It delivers open-drain active-low RESET output with VOL ≤ 0.4 V at 8 mA sink current, includes an integrated 3.75–6.25 kΩ pull-up resistor, and requires no external capacitors - enabling direct interface to 5 V microcontrollers including Motorola 68XXX and HC16 families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 4.5 V (min) to 4.75 V (max); detects 5 V supply loss within ±5% tolerance window |
| Reset Pulse Width | 250–450 ms; guarantees stable microprocessor initialization after power recovery |
| Output Type | Open-drain active-low RESET; interfaces directly to 5 V logic without level-shifting |
| Supply Current | 50 µA typical; enables low-power system monitoring during standby |
| Operating Temp | –40°C to +85°C; qualified for industrial-grade embedded control environments |
| Internal Pull-Up | 3.75–6.25 kΩ; eliminates need for external resistor in most 5 V MCU reset circuits |
| VOL @ 8 mA | ≤ 0.4 V; ensures solid logic-low assertion under full load conditions |
Pinout & Package
SOT-223 package: 4-pin thermally enhanced surface-mount outline with exposed thermal pad (pin 4 = GROUND). Pin 1 = GROUND, Pin 2 = RESET (open-drain output), Pin 3 = VCC, Pin 4 = GROUND - dual ground pins improve noise immunity and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 | GROUND | Primary ground reference for comparator and output stage; connects to PCB ground plane |
| PIN 2 | RESET | Active-low open-drain output; sinks current to hold MCU in reset until VCC stabilizes |
| PIN 3 | VCC | Power supply input and monitored rail; supplies internal circuitry and reference |
| PIN 4 | GROUND | Secondary ground terminal; enhances thermal conduction and reduces ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| ±5% VCC threshold accuracy | Ensures precise 5 V supply monitoring without calibration or trimming components |
| Guaranteed 250–450 ms reset pulse | Meets JEDEC JESD78 reliability requirements for microprocessor power-on sequencing |
| Integrated 5 kΩ pull-up resistor | Reduces BOM count by eliminating external resistor in standard 5 V reset configurations |
| –40°C to +85°C operation | Validated across full industrial temperature range without derating or external compensation |
| TO-92/SOT-223 dual-package support | Enables migration from through-hole to surface-mount assembly without circuit redesign |
Applications
| Industrial PLC Controller | Point-of-Sale Terminal |
|---|---|
Use Scenario: Power interruption during transaction processing causes volatile memory corruption and state loss. IC Role / Device Role / Timing Role: Supervisory reset generator ensuring deterministic restart after brownout or cold start. Use Value: 350 ms guaranteed reset hold time prevents premature MCU execution before 5 V rail stabilization and clock lock. | Use Scenario: Unplanned AC dropout in retail environment triggers uncontrolled shutdown of payment hardware. IC Role / Device Role / Timing Role: VCC monitor with accurate ±5% trip point and open-drain reset output. Use Value: Eliminates need for external RC network, reducing board space and improving long-term voltage threshold stability over temperature. |
| Medical Diagnostic Instrument | Smart Energy Meter |
Use Scenario: Intermittent line voltage sags disrupt sensor calibration routines and firmware integrity checks. IC Role / Device Role / Timing Role: Precision power-fail detector with temperature-compensated reference. Use Value: ±5% trip accuracy over –40°C to +85°C avoids false resets during ambient thermal cycling in non-climate-controlled cabinets. | Use Scenario: Grid voltage fluctuations cause meter MCU to execute partial firmware updates or corrupt EEPROM data. IC Role / Device Role / Timing Role: Reset supervisor with 250–450 ms pulse width and low ICC (50 µA). Use Value: Ensures complete power rail recovery and oscillator stabilization before releasing reset - critical for secure boot and metrology accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX692AESA+ | Higher VCC trip accuracy (±1.5%), includes watchdog timer and manual reset input | Required where system-level fault recovery beyond power monitoring is needed | Choose when watchdog supervision and push-button reset capability are mandatory |
| TPS3808G15DBVR | Adjustable trip point (via external resistor), lower quiescent current (1.5 µA), no internal pull-up | Preferred in battery-powered or ultra-low-power systems with custom voltage thresholds | Choose when design requires programmable threshold or sub-10 µA supply current |
Compared with MAX692AESA+ and TPS3808G15DBVR, the DS1233DZ-5/T&R offers fixed ±5% 5 V monitoring with integrated pull-up and zero-external-component operation - optimizing cost and layout simplicity for standard 5 V microcontroller reset in industrial and commercial equipment.
Availability
DS1233DZ-5/T&R is available at Aetrix Electronics and suitable for industrial PLC controllers, point-of-sale terminals, medical diagnostic instruments, and smart energy meters requiring stable component supply and long-lifecycle availability.
Supply support for DS1233DZ-5/T&R 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
Analog Devices (via acquisition of Maxim Integrated) designs high-performance analog, mixed-signal, and power management ICs for precision sensing, signal conditioning, and system supervision.
The DS1233DZ-5/T&R belongs to the EconoReset™ family - engineered for cost-sensitive, high-volume microprocessor reset applications where accuracy, reliability, and minimal external components are essential.
FAQ
What is the exact VCC trip point range for DS1233DZ-5/T&R?
The DS1233DZ-5/T&R has a guaranteed VCC trip point range of 4.5 V (minimum) to 4.75 V (maximum), corresponding to ±5% tolerance around a nominal 5 V supply. This specification is validated across –40°C to +85°C and is derived from the device's precision temperature-compensated voltage reference - ensuring consistent detection without external calibration. The DS1233DZ-5/T&R maintains this accuracy without requiring additional components.
Does DS1233DZ-5/T&R require an external pull-up resistor?
No, the DS1233DZ-5/T&R includes an internal pull-up resistor ranging from 3.75 kΩ to 6.25 kΩ on the RESET pin, eliminating the need for an external component in standard 5 V microcontroller interfaces. This feature reduces BOM count and PCB area while maintaining compatible drive strength - the DS1233DZ-5/T&R delivers VOL ≤ 0.4 V at 8 mA sink current, ensuring robust logic-low assertion.
What is the reset pulse duration of DS1233DZ-5/T&R after VCC recovery?
The DS1233DZ-5/T&R holds the RESET output active for 250 ms (minimum) to 450 ms (maximum) after VCC returns to within its ±5% tolerance band. The typical duration is 350 ms, providing sufficient time for power supply settling and microprocessor oscillator stabilization. This timing is internally generated and does not depend on external capacitors - a key design feature of the DS1233DZ-5/T&R.
Is DS1233DZ-5/T&R compatible with Motorola 68XXX and HC16 microprocessors?
Yes, the DS1233DZ-5/T&R is explicitly designed for compatibility with Motorola 68XXX series and HC16 microprocessors, as confirmed in its official datasheet. Its open-drain active-low RESET output, 5 V operating range, and 350 ms reset hold time align with the power-on reset timing requirements of those architectures. The DS1233DZ-5/T&R meets these interface specifications without modification or additional buffering.
What package type is used for DS1233DZ-5/T&R?
The DS1233DZ-5/T&R is supplied in the SOT-223 package - a 4-pin surface-mount outline with an exposed thermal pad and dual ground pins (pins 1 and 4). This package provides superior thermal performance and noise immunity compared to TO-92, and is optimized for automated assembly. The DS1233DZ-5/T&R pinout is fully documented: pin 1 = GROUND, pin 2 = RESET, pin 3 = VCC, pin 4 = GROUND.
DS1233DZ-5/T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- EconoReset
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.625V
- 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-5/T&R FAQ
1.How can I place an order for DS1233DZ-5/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1233DZ-5/T&R 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-5/T&R reliable?
The price and inventory of DS1233DZ-5/T&R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1233DZ-5/T&R is usually 5 days.
3.What payment methods are accepted for DS1233DZ-5/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1233DZ-5/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1233DZ-5/T&R?
DS1233DZ-5/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1233DZ-5/T&R 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-5/T&R?
For technical support, including DS1233DZ-5/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1233DZ-5/T&R requirements.
6.How does Aetrix verify that DS1233DZ-5/T&R is sourced from the original manufacturer or authorized distributors?
All DS1233DZ-5/T&R 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-5/T&R meets industry standards.
7.What is the process for return or replacement of DS1233DZ-5/T&R?
All DS1233DZ-5/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1233DZ-5/T&R, 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-5/T&R part is unused and in its original packaging.
Return procedure for DS1233DZ-5/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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