Analog Devices Inc./Maxim Integrated DS4510U-10+

Overview

DS4510U-10+ 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 ±10% trip point (4.25V–4.49V), provides adjustable reset timeout (125ms–1000ms), and retains I/O states across power cycles-used in FPGA bank switching, industrial controls, and PC peripherals.

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

Technical Context

The DS4510U-10+ implements a voltage-monitoring circuit with hysteresis to detect VCC drops below 4.25V (min) and asserts an active-low open-drain RST signal with programmable delay (125–1000ms). Its I²C interface supports both standard-mode (100kbps) and fast-mode (400kbps) timing, with bus capacitance tolerance up to 400pF and SDA/SCL rise/fall times specified at 20 + 0.1C_B ns.

All four I/O pins are bidirectional, feature configurable internal pullups (enabled per-bit in register F0h), and retain state via SRAM-shadowed EEPROM (SEEPROM); the SEE bit in Config register (F9h) toggles between volatile SRAM access (infinite writes, no write time) and nonvolatile EEPROM storage (50,000-cycle endurance at +70°C).

Key Specifications

Pinout & Package

DS4510U-10+ is housed in a 10-pin µSOP package (3.0mm × 3.0mm, 0.5mm pitch), optimized for compact PCB layouts in portable and industrial equipment.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS4510U-10+, MAX6361KA29+T offers smaller footprint but forfeits all programmability and memory; TPS3808G12DBVR adds threshold flexibility yet still lacks integrated I/O and EEPROM-making DS4510U-10+ uniquely suited for applications demanding supervisory intelligence, state persistence, and pin-count reduction.

Availability

DS4510U-10+ 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-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 precision analog, mixed-signal, and power management ICs for industrial, computing, and communications markets.

The DS4510U-10+ belongs to Maxim's CPU supervisor family engineered for embedded systems needing integrated voltage monitoring, nonvolatile I/O control, and EEPROM-based configuration storage-all in a single µSOP package.

FAQ

What is the VCC trip voltage range for DS4510U-10+?

The DS4510U-10+ has a guaranteed VCC trip point of 4.25V (min) to 4.49V (max) at -40°C to +85°C, corresponding to ±10% accuracy around a nominal 5V supply. This range is factory-trimmed and does not require external calibration. The DS4510U-10+ uses an internal voltage reference to maintain this accuracy across temperature and supply variations.

How does the SEEPROM functionality work in DS4510U-10+?

In DS4510U-10+, SEEPROM registers (F2h–F7h, F9h) behave as SRAM when the SEE bit (bit 4 of Config register F9h) is set to 1-enabling unlimited, zero-latency writes. When SEE = 0, writes persist to EEPROM, retaining values across power cycles but incurring 10–20ms write time. The DS4510U-10+ uses this dual-mode architecture to balance speed and nonvolatility for I/O control and configuration.

Can DS4510U-10+ drive a microcontroller reset pin directly?

Yes-the DS4510U-10+ RST pin is an open-drain output rated for 10mA sink current at 0.4V max VOL. To drive a typical microcontroller reset pin, connect a 4.7kΩ pullup resistor from RST to the target MCU's VDD (e.g., 3.3V or 5V). The DS4510U-10+ asserts RST low when VCC falls below 4.25V or when software triggers SWRST bit in Config register F9h.

What is the maximum I²C bus capacitance supported by DS4510U-10+?

The DS4510U-10+ supports up to 400pF total capacitance on SDA and SCL lines, as specified in its AC Electrical Characteristics. This allows reliable operation with longer traces or multiple devices on the same bus. Rise/fall times are defined as 20 + 0.1C_B ns, so at 400pF, t_R/t_F ≤ 300ns-compatible with standard I²C pullup resistor calculators.

Does DS4510U-10+ require external pullup resistors on I/O pins?

No-DS4510U-10+ integrates programmable internal pullup resistors (4.0–6.5kΩ) for each of the four I/O pins (I/O0–I/O3). These are controlled individually via bits 0–3 of pullup-enable register F0h. External pullups are unnecessary unless stronger drive strength or different resistance values are required for specific interface conditions.