My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DS1233DZ-5+
- Part No.:
- DS1233DZ-5+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
DS1233DZ-5+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT223-3
- Quantity:
- Payment:
- Shipping:
Inventory:271
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DS1233DZ-5+ from Maxim Integrated (now Analog Devices) is a 5V microprocessor supervisory circuit that monitors VCC and asserts an active-low reset signal during power failure or brownout. It features ±5% VCC trip point (4.5–4.75 V), 350 ms reset timeout, internal 5 kΩ pull-up resistor, and operates from –40°C to +85°C in SOT-223 package. Used in embedded controllers to ensure reliable power-on initialization.
For engineers reviewing the DS1233DZ-5+ datasheet, DS1233DZ-5+ pinout, DS1233DZ-5+ application, or DS1233DZ-5+ equivalent, key selection criteria include VCC trip accuracy, reset timeout duration, operating temperature range, compatibility with 68XXX/HC16 microprocessors, and SOT-223 thermal performance in space-constrained designs.
Technical Context
The DS1233DZ-5+ integrates a precision temperature-compensated voltage reference and comparator to detect VCC deviations beyond ±5% of nominal 5 V. Its internal logic ensures RST remains asserted for 250–450 ms after VCC returns to tolerance, accommodating supply and processor stabilization.
It delivers a push-pull reset output with VOL ≤ 0.4 V at IOL = +8 mA, requires no external components for basic operation, and supports fast VCC slew rate detection (tRPD = 100 ns) during power-down transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 4.5 V (min), 4.625 V (typ), 4.75 V (max) - sets precise 5% tolerance window for 5 V supply monitoring |
| Reset Active Time | 250–450 ms - guarantees sufficient hold time for microprocessor core and peripheral initialization |
| Output Low Voltage | ≤ 0.4 V at 8 mA - ensures compatible logic-low level for TTL/CMOS reset inputs |
| Internal Pull-Up | 3.75–6.25 kΩ - eliminates need for external pull-up on RST line in most applications |
| Operating Temp | –40°C to +85°C - supports industrial-grade deployment without derating |
| VCC Slew Rate Detect | 300 µs (falling edge, 4.75 V → 4.00 V) - enables robust response to gradual brownouts |
Pinout & Package
SOT-223 package: 4-pin surface-mount, thermally enhanced, with exposed thermal pad (pin 4 = GND). Pin 1 = GND, Pin 2 = RESET (active-low open-drain/push-pull), Pin 3 = VCC, Pin 4 = GND (thermal & electrical ground).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground | Primary reference and return path for internal comparator and reset driver |
| Pin 2 | RESET | Active-low reset output; drives microprocessor /RST input directly |
| Pin 3 | VCC | Power supply input and monitored rail; powers internal reference and logic |
| Pin 4 | Ground (Thermal) | Dedicated thermal and low-impedance ground connection for improved stability and heat dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Precision ±5% VCC threshold | Enables accurate 5 V supply monitoring without calibration or trimming components |
| 350 ms guaranteed reset timeout | Meets JEDEC JESD78 requirements for microprocessor reset assertion duration |
| Integrated 5 kΩ pull-up resistor | Reduces BOM count and PCB footprint; eliminates external resistor for standard CMOS loads |
| –40°C to +85°C operation | Validated across full industrial temperature range without performance degradation |
| Compatible with 68XXX/HC16 | Direct interface to legacy Motorola and high-speed CMOS microcontrollers' reset inputs |
Applications
| Industrial PLC Controller | Point-of-Sale Terminal |
|---|---|
Use Scenario: Power interruption during transaction processing risks data corruption and state loss. IC Role / Device Role / Timing Role: DS1233DZ-5+ monitors 5 V rail and holds microcontroller in reset until stable post-brownout. Use Value: Prevents partial writes to EEPROM/flash and ensures deterministic boot sequence after grid fluctuation. | Use Scenario: Unplanned AC dropout or battery switchover causes transient VCC sag in retail kiosks. IC Role / Device Role / Timing Role: DS1233DZ-5+ asserts /RST within 100 ns of VCC drop below 4.5 V and sustains it ≥250 ms. Use Value: Eliminates spurious reboots and maintains secure payment session integrity during brief outages. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Battery-powered device experiences voltage droop under high-current sensor activation. IC Role / Device Role / Timing Role: DS1233DZ-5+ detects sub-4.5 V condition and forces controlled reset before analog front-end misreads. Use Value: Avoids false diagnostic alerts by ensuring ADC and MCU operate only within validated supply margin. | Use Scenario: Mains-powered meter endures lightning-induced surges and sags on 5 V auxiliary rail. IC Role / Device Role / Timing Role: DS1233DZ-5+ provides immunity to fast transients via 100 ns VCC-to-RST propagation delay. Use Value: Maintains accurate energy logging continuity by preventing firmware crash during grid disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX691ACSA+ | Includes watchdog timer and manual reset input; higher ICC (150 µA vs. 50 µA); SO-8 package | Required where system-level fault recovery beyond power monitoring is needed | Choose MAX691ACSA+ if watchdog supervision and user-initiated reset are mandatory |
| TPS3808G33DBVR | Fixed 3.3 V trip point; adjustable reset delay (0.5–10 s); 1.5 µA quiescent current; SOT-23-6 | Designed for low-voltage microcontrollers; lacks integrated pull-up; requires external RC timing | Choose TPS3808G33DBVR only for 3.3 V systems requiring ultra-low IQ and programmable delay |
Compared with MAX691ACSA+ and TPS3808G33DBVR, the DS1233DZ-5+ offers lowest BOM cost and smallest footprint for fixed 5 V, ±5% monitoring with built-in pull-up-ideal when watchdog or adjustable delay are unnecessary.
Availability
DS1233DZ-5+ is available at Aetrix Electronics and suitable for industrial PLC controllers, point-of-sale terminals, medical handheld diagnostics, and smart energy meters requiring stable component supply and long-term lifecycle support.
Supply support for DS1233DZ-5+ 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 precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The DS1233DZ-5+ belongs to Maxim's EconoReset™ family-engineered for cost-sensitive, space-constrained microprocessor systems needing reliable, single-rail power monitoring without external components.
FAQ
What is the exact VCC trip point tolerance for DS1233DZ-5+?
The DS1233DZ-5+ has a guaranteed ±5% VCC trip point centered at 5 V, meaning it asserts reset when VCC falls below 4.5 V (min) and releases reset only after VCC rises above 4.75 V (max), with typical trip at 4.625 V. This specification is validated over –40°C to +85°C and is enabled by its internal temperature-compensated voltage reference.
Does DS1233DZ-5+ require an external pull-up resistor on the RESET pin?
No, DS1233DZ-5+ includes an internal pull-up resistor of 3.75–6.25 kΩ on the RESET pin, eliminating the need for an external component in standard CMOS and TTL microprocessor interfaces. This reduces PCB area and BOM count while maintaining compatible logic-high voltage levels.
What is the reset timeout duration of DS1233DZ-5+ and how is it determined?
The DS1233DZ-5+ guarantees a reset active time of 250–450 ms after VCC returns to tolerance, with typical duration of 350 ms. This timing is internally generated and does not rely on external capacitors or resistors-it is factory-trimmed and stable across temperature and supply voltage variations.
Is DS1233DZ-5+ compatible with Motorola 68XXX-series microprocessors?
Yes, DS1233DZ-5+ is explicitly designed for compatibility with Motorola 68XXX-series and HC16 microprocessors. Its active-low RESET output meets timing and voltage thresholds required by these families, including fast 100 ns response to VCC drop and low VOL (≤0.4 V) under 8 mA load.
What package type is used for DS1233DZ-5+ and what are its thermal advantages?
DS1233DZ-5+ uses the SOT-223 package, which features four pins and an exposed thermal pad (Pin 4 = GND). This construction provides superior thermal resistance compared to TO-92, enabling reliable operation at full rated current in compact industrial PCB layouts without additional heatsinking.
DS1233DZ-5+ 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:
- 4.625V
- 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+ FAQ
1.How can I place an order for DS1233DZ-5+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1233DZ-5+ 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+ reliable?
The price and inventory of DS1233DZ-5+ 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+ is usually 5 days.
3.What payment methods are accepted for DS1233DZ-5+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1233DZ-5+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1233DZ-5+?
DS1233DZ-5+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1233DZ-5+ 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+?
For technical support, including DS1233DZ-5+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1233DZ-5+ requirements.
6.How does Aetrix verify that DS1233DZ-5+ is sourced from the original manufacturer or authorized distributors?
All DS1233DZ-5+ 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+ meets industry standards.
7.What is the process for return or replacement of DS1233DZ-5+?
All DS1233DZ-5+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1233DZ-5+, 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+ part is unused and in its original packaging.
Return procedure for DS1233DZ-5+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1233DZ-5+ Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
