Analog Devices Inc./Maxim Integrated DS4510U-5+

Overview

DS4510U-5+ from Maxim Integrated is a CPU supervisor IC with integrated 64-byte EEPROM, four nonvolatile programmable I/O pins, and I²C interface (100/400 kbps). It monitors 5V supply at ±5% accuracy (4.5V–4.75V trip), provides adjustable reset timeout (125ms–1000ms), and supports RAM-based FPGA bank switching in industrial control and cellular telephone systems.

For engineers reviewing the DS4510U-5+ datasheet, DS4510U-5+ pinout, DS4510U-5+ application, or DS4510U-5+ equivalent, key selection criteria include VCC trip point tolerance, I/O pin retention across power cycles, SEEPROM vs. EEPROM write behavior, and open-drain RST output drive capability.

Technical Context

The DS4510U-5+ implements a dual-mode memory architecture: 64 bytes of standard EEPROM (non-shadowed) and SRAM-shadowed SEEPROM registers (F0h–FFh) configurable via the SEE bit. Its reset logic uses an internal voltage reference to detect VCC drop below 4.5V (min), asserting active-low open-drain RST after programmable delay.

I/O pins (I/O0–I/O3) operate as bidirectional, pullup-controllable digital terminals with 4–6.5 kΩ internal resistors and 10 pF capacitance. All configuration, status reads, and memory access occur over I²C using slave address 1010000b/1010001b (A0-dependent), supporting fast-mode timing with tLOW ≥1.3 µs and fSCL up to 400 kHz.

Key Specifications

Pinout & Package

DS4510U-5+ is housed in a 10-pin µSOP package (3.0mm × 3.0mm, 0.5mm pitch), thermally optimized for compact PCB layouts and compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar CPU supervisor with programmable I/O applications.

Compared with MAX6361KA29+T and TPS3808G33DBVR, DS4510U-5+ uniquely integrates reset supervision, EEPROM, and four NV I/O pins in one I²C-addressable device - reducing component count and enabling autonomous power-cycle state management without MCU intervention.

Availability

DS4510U-5+ is available at Aetrix Electronics and suitable for industrial controls, cellular telephones, and PC peripherals requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for DS4510U-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

Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, computing, and communications markets, with emphasis on power management, sensing, and interface solutions.

The DS4510U-5+ belongs to Maxim's CPU supervisor product line, engineered to consolidate power monitoring, nonvolatile configuration storage, and GPIO expansion into a single I²C-compatible device for resource-constrained embedded systems.

FAQ

What is the exact VCC trip point range for DS4510U-5+?

The DS4510U-5+ has a guaranteed VCC trip point range of 4.5V (minimum), 4.625V (typical), and 4.75V (maximum) at -40°C to +85°C. This ±5% tolerance around 4.7V ensures robust detection of 5V rail faults while accommodating manufacturing variance and temperature drift, as confirmed in the DC Electrical Characteristics table.

How does the SEE bit affect DS4510U-5+ I/O pin behavior?

When the SEE bit (in Config register F9h) is set to 1, writes to SEEPROM registers (F0h–F7h) behave as SRAM - enabling infinite, fast I/O toggling without EEPROM wear. When SEE = 0, those same registers write to EEPROM, preserving I/O states across power cycles. DS4510U-5+ retains this configuration in nonvolatile memory until explicitly rewritten.

Can DS4510U-5+ drive a 10kΩ pullup on the RST line?

Yes - DS4510U-5+ RST pin is an open-drain output rated for 10mA sink current with VOLRST ≤0.4V. With a 10kΩ pullup to 5V, the high-level voltage exceeds 4.6V and low-level remains <0.4V, satisfying standard TTL/CMOS input thresholds. The datasheet specifies 5.6kΩ as typical but confirms compatibility with higher values.

What is the maximum I²C clock frequency supported by DS4510U-5+?

DS4510U-5+ supports I²C fast-mode operation up to 400 kHz, with minimum tLOW and tHIGH timing of 1.3 µs and 0.6 µs respectively. It is backward compatible with standard-mode (100 kHz) timing, and its lack of clock stretching ensures predictable bus arbitration in multi-master environments.

Does DS4510U-5+ require external decoupling capacitors?

Yes - the DS4510U-5+ datasheet mandates a 0.01 µF or 0.1 µF ceramic capacitor placed as close as possible between VCC and GND pins. This decoupling suppresses high-frequency noise on the supply rail, ensuring accurate VCC trip detection and stable I²C communication, especially during I/O transitions.