Analog Devices Inc./Maxim Integrated DS4510U-15+

Overview

DS4510U-15+ from Maxim Integrated is a CPU supervisor IC with integrated 64-byte EEPROM, four nonvolatile programmable I/O pins, and I²C interface (100/400kbps). It monitors 5V supply at ±15% trip point (4.0V–4.24V), provides adjustable reset timeout (125ms–1000ms), and retains I/O states across power cycles for FPGA bank switching and industrial control systems.

For engineers reviewing the DS4510U-15+ datasheet, DS4510U-15+ pinout, DS4510U-15+ application, or DS4510U-15+ equivalent, key selection considerations include VCC trip accuracy (15%), open-drain RST output timing, I/O pullup resistor value (4.0–6.5kΩ), SEEPROM configuration flexibility, and µSOP-10 package compatibility with space-constrained embedded designs.

Technical Context

The DS4510U-15+ implements a voltage-monitoring comparator with hysteresis to detect VCC drop below 4.0V (min) and assert active-low open-drain RST within 4µs. Its reset delay is controlled via two-bit register (TD1/TD0) selecting one of four fixed timeouts (125/250/500/1000ms).

I/O pins I/O0–I/O3 are bidirectional, each with individually controllable internal pullup (enabled via F0h register) and pulldown transistor (controlled by F4h–F7h), all backed by SRAM-shadowed EEPROM (SEEPROM) for volatile or nonvolatile state retention. The I²C interface supports standard- and fast-mode timing without clock stretching.

Key Specifications

Pinout & Package

DS4510U-15+ is housed in a 10-pin µSOP package (3mm × 3mm, 0.5mm pitch), optimized for compact PCB layouts in portable and embedded systems.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6361KA29+T and TPS3808G15DBVR, DS4510U-15+ uniquely integrates voltage supervision, programmable I/O, and EEPROM in one µSOP-10 device-enabling system-level configuration management rather than standalone reset assertion.

Availability

DS4510U-15+ is available at Aetrix Electronics and suitable for RAM-based FPGA bank switching, industrial controls, cellular telephones, PC peripherals, and PDAs requiring stable component supply across extended temperature ranges.

Supply support for DS4510U-15+ 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, communications, and computing applications.

The DS4510U-15+ belongs to Maxim's CPU supervisor product line, engineered to consolidate power monitoring, nonvolatile configuration storage, and I/O expansion into a single I²C-accessible device for resource-constrained embedded systems.

FAQ

What is the VCC trip point tolerance for DS4510U-15+?

The DS4510U-15+ has a guaranteed VCC trip point range of 4.0V (min) to 4.24V (max) at 25°C, corresponding to ±15% tolerance around the nominal 5V supply. This specification is maintained across the full operating temperature range (-40°C to +85°C), ensuring robust reset behavior under varying thermal and supply conditions. DS4510U-15+ uses an internal precision voltage reference to achieve this accuracy without external calibration.

How does the SEEPROM functionality work in DS4510U-15+?

DS4510U-15+ implements SRAM-shadowed EEPROM (SEEPROM) in registers F0h–F7h and F9h, controlled by the SEE bit in the Config register (F9h). When SEE = 0, writes update both SRAM shadow and underlying EEPROM; when SEE = 1, writes affect only SRAM-enabling unlimited rapid I/O reconfiguration without EEPROM wear. DS4510U-15+ retains last EEPROM values on power-up regardless of SEE state, preserving system state integrity.

Can DS4510U-15+ drive loads directly on its I/O pins?

Yes, DS4510U-15+ I/O pins (I/O0–I/O3) support 4mA sink current with VOLIOX ≤ 0.4V, allowing direct interfacing with TTL/CMOS inputs and small LEDs. Each pin features an open-collector output stage with optional internal pullup (4.0–6.5kΩ). For higher-current loads (>4mA) or voltage translation, external drivers or level shifters are required. DS4510U-15+ does not source current-only sinks-so pullup networks must be provided externally or via internal resistors.

What is the maximum I²C clock frequency supported by DS4510U-15+?

DS4510U-15+ supports I²C fast-mode operation up to 400kHz, with guaranteed timing compliance for tLOW ≥ 1.3µs, tHIGH ≥ 0.6µs, and rise/fall times ≤ 300ns (CB ≤ 400pF). It is also backward-compatible with standard-mode (100kHz) timing. The device does not use clock stretching, enabling predictable transaction latency. DS4510U-15+ maintains full functionality across its 2.7V–5.5V supply range during I²C communication.

Does DS4510U-15+ require external pullup resistors on SDA and SCL?

Yes, DS4510U-15+ requires external pullup resistors on both SDA and SCL lines because its SDA pin is open-drain and SCL is a passive input. Typical values range from 2.2kΩ to 10kΩ depending on bus capacitance and speed requirements. DS4510U-15+'s internal circuitry does not provide pullup current on these lines-relying entirely on external resistors to establish logic-high levels and meet I²C rise-time specifications (tR ≤ 300ns).