My Inquiry
My Account
Microchip Technology AT25HP512-10PI-2.7
- Part No.:
- AT25HP512-10PI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT25HP512-10PI-2.7.pdf
- Description:
- IC EEPROM 512KBIT SPI 10MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,110
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT25HP512-10PI-2.7 from Atmel (now Microchip) is a 512 Kbit serial SPI EEPROM organized as 65,536 × 8-bit words, operating from 2.7V to 5.5V with 5 MHz max clock rate at 2.7V, 100K write endurance, and >40-year data retention. It serves as nonvolatile configuration storage in industrial controllers, power supply monitors, and embedded sensor nodes requiring low-voltage, page-write capability.
For engineers reviewing the AT25HP512-10PI-2.7 datasheet, AT25HP512-10PI-2.7 pinout, AT25HP512-10PI-2.7 application, or AT25HP512-10PI-2.7 equivalent, key selection criteria include SPI Mode 0/3 compatibility, hardware/software write protection (WP/HOLD pins), 128-byte page write constraint, and JEDEC 16-lead SOIC package with industrial temperature range (–40°C to +85°C).
Technical Context
The AT25HP512-10PI-2.7 implements a synchronous 3-wire SPI slave interface (CS/SCK/SI/SO) with MSB-first transmission, no erase cycle required, and fully self-timed internal write cycles (10 ms typical). It supports dual voltage operation (2.7–5.5V), with clock rate scaling per VCC: 5 MHz at 2.7V, 10 MHz at 5V.
Block write protection is configured via nonvolatile status register bits BP1/BP0 to lock top 1/4, top 1/2, or entire memory array; WPEN bit enables/disables hardware protection via the WP pin. HOLD pin suspends ongoing serial transfers without resetting sequence state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 524,288 bits (65,536 × 8-bit words) - supports firmware parameter storage for mid-complexity embedded systems. |
| Interface | SPI-compatible, Modes 0 (0,0) and 3 (1,1) - interoperable with standard microcontroller SPI peripherals without mode translation logic. |
| Supply Voltage | 2.7V to 5.5V - enables direct integration into 3.3V and 5V systems without level-shifting. |
| Max Clock Rate | 5 MHz at 2.7V - defines maximum sustained read/write throughput under low-voltage operation. |
| Write Endurance | 100,000 cycles - sufficient for infrequent configuration updates over 10+ years of field operation. |
| Data Retention | >40 years - ensures long-term reliability for unattended industrial deployments. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade environmental stress without derating. |
| Write Cycle Time | 10 ms typical - determines minimum interval between consecutive write commands; not programmable. |
Pinout & Package
AT25HP512-10PI-2.7 uses a 16-lead JEDEC SOIC package (16S2), 0.300" wide body, with 1.27 mm lead pitch. Pin 1 is marked by notch or bevel; leads are gull-wing shaped and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CS) | Chip Select | Active-low enable: pulls device out of standby and initiates SPI command sequence on falling edge. |
| 2 (SO) | Serial Data Output | Tri-state open-drain output: drives read data during CS low; high-impedance when deselected or during HOLD. |
| 3–4 (NC) | No Connect | Internally unused; must remain unconnected per datasheet - floating or tied to GND/VCC invalidates operation. |
| 5–8 (NC) | No Connect | Reserved for future use; electrically isolated - no routing or termination permitted. |
| 9 (WP) | Write Protect | Hardware lock: when WPEN=1 and WP=low, blocks all status register writes and protected memory writes. |
| 10 (GND) | Ground Reference | Primary return path for VCC current and signal references; requires low-impedance PCB connection. |
| 11 (VCC) | Power Supply | Single-supply input: accepts 2.7–5.5V; bypass capacitor (0.1 µF) mandatory within 10 mm of pin. |
| 12 (HOLD) | Serial Suspend | Pauses active SPI transfer: must be asserted low while SCK is low; resumes on rising edge with SCK low. |
| 13–14 (NC) | No Connect | Unused internal pads - no electrical function; leave unconnected per JEDEC SOIC mechanical spec. |
| 15 (SCK) | Serial Clock Input | Master-generated edge-triggered clock: controls SI sampling and SO timing; max 5 MHz at 2.7V. |
| 16 (SI) | Serial Data Input | Command/address/data input: sampled on SCK rising edge in Mode 0; high-impedance when CS high. |
Key Features
| Feature | Design Value |
|---|---|
| 128-byte Page Write Only | Enforces atomic 128-byte programming bursts - prevents partial-page corruption but requires host-side buffering. |
| Dual-Voltage Operation | Supports 2.7–5.5V and 1.8–5.5V variants - allows shared PCB design across 3.3V and 5V platforms with BOM flexibility. |
| Hardware + Software Protection | WP pin + WRSR-configurable BP1/BP0 bits enable layered security - protects calibration data against accidental overwrite. |
| HOLD Pin Functionality | Preserves SPI state during interrupt latency - eliminates need for retransmission or address tracking in real-time systems. |
| Industrial Temperature Range | –40°C to +85°C operation - validated for deployment in motor drives, PLCs, and outdoor telemetry without thermal derating. |
| No Pre-Erase Requirement | Direct byte/page overwrite - simplifies firmware logic and reduces write latency compared to flash-based alternatives. |
Applications
| Industrial Sensor Calibration | Power Supply Configuration |
|---|---|
Use Scenario: Storing factory-trimmed ADC offset/gain coefficients and temperature compensation tables in smart pressure transmitters. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during power-up initialization and runtime calibration correction. Use Value: Enables single-pass calibration at manufacturing; eliminates need for external trim pots or OTP fuses. | Use Scenario: Holding digital control settings (voltage/current limits, soft-start time, fault thresholds) in programmable DC-DC modules. IC Role / Device Role / Timing Role: SPI-configurable memory mapped to MCU's peripheral bus via GPIO-controlled CS. Use Value: Allows field-upgradable power profiles without hardware change or firmware reflash. |
| Embedded Controller Bootloader Settings | Medical Device Usage Logs |
Use Scenario: Recording boot count, last-fault code, and secure boot keys in HVAC controller mainboards. IC Role / Device Role / Timing Role: Secure configuration vault with WP-enabled protection against malicious firmware tampering. Use Value: Supports IEC 62443-aligned secure boot verification and audit trail persistence. | Use Scenario: Logging patient session timestamps, error events, and calibration history in portable ECG monitors. IC Role / Device Role / Timing Role: Low-power, high-reliability data logger interfaced via SPI during idle MCU cycles. Use Value: Meets FDA 21 CFR Part 11 requirements for tamper-evident, long-retention event records. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95512-DRMN6TP/K | 512 Kbit SPI EEPROM, 16-pin SOIC, 1.8–5.5V, 10 MHz @ 5V, 400K endurance | Higher endurance and faster clock at 5V; lacks HOLD pin and top-1/4 protection granularity | Preferred for high-write-frequency logging where HOLD is unused and 5V operation dominates. |
| BR25H512FJ-2CE2 | 512 Kbit SPI EEPROM, 8-pin SOP, 2.5–5.5V, 20 MHz @ 5V, 1M endurance, built-in error correction | Smaller 8-pin package, higher speed, ECC support; no WP/HOLD pins, different pinout | Chosen when board space is constrained and data integrity under radiation/EMI is critical. |
Compared with M95512-DRMN6TP/K and BR25H512FJ-2CE2, the AT25HP512-10PI-2.7 offers unique HOLD functionality for deterministic SPI pause/resume and finer-grained (top-1/4) block protection - making it optimal for real-time industrial controllers where communication interruption handling and selective memory lockdown are essential.
Availability
AT25HP512-10PI-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, power supply configuration, and embedded controller bootloader settings requiring stable component supply across extended product lifecycles.
Supply support for AT25HP512-10PI-2.7 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
Microchip Technology (formerly Atmel) is a global semiconductor company specializing in microcontrollers, analog devices, and nonvolatile memory solutions for industrial, automotive, and consumer markets.
The AT25HP512-10PI-2.7 belongs to the AT25HP serial EEPROM family, designed specifically for robust, low-voltage SPI-based configuration storage in harsh industrial environments with stringent reliability and longevity requirements.
FAQ
What is the maximum clock frequency supported by the AT25HP512-10PI-2.7 at 2.7V?
The AT25HP512-10PI-2.7 supports a maximum SCK clock frequency of 5 MHz when operated at 2.7V, as specified in Table 4 of the datasheet. This limit scales with supply voltage: 10 MHz at 5V and 2 MHz at 1.8V. Exceeding 5 MHz at 2.7V violates AC timing parameters including tWH, tWL, and tSU, risking data corruption during read/write operations. The AT25HP512-10PI-2.7 must be clocked within this bound for guaranteed functionality.
Does the AT25HP512-10PI-2.7 support individual byte writes?
No, the AT25HP512-10PI-2.7 only supports 128-byte page write operations - byte-level writes are not implemented. Attempting to write fewer than 128 bytes within a page results in undefined content for that page. Host firmware must buffer up to 128 bytes before issuing a WRITE command, and address alignment must be to 128-byte boundaries (A0–A6 = 0). The AT25HP512-10PI-2.7 enforces this constraint in hardware; no software workaround exists.
How does the HOLD pin function during an active SPI transaction on the AT25HP512-10PI-2.7?
The HOLD pin on the AT25HP512-10PI-2.7 suspends serial communication without resetting the internal address counter or command state. To activate HOLD, the pin must be driven low while SCK is low; the SO pin enters high-impedance and SI inputs are ignored. Resumption occurs on the rising edge of HOLD while SCK remains low. The AT25HP512-10PI-2.7 retains full context - next SCK edge continues from the exact bit position where suspension occurred.
Can the AT25HP512-10PI-2.7 be used in a 5V system without level shifting?
Yes, the AT25HP512-10PI-2.7 is fully compatible with 5V systems: its VCC range is 2.7V to 5.5V, and DC characteristics (VIH, VOL, VOH) are specified up to 5.5V. Logic thresholds scale with VCC (VIH ≥ 0.7×VCC), so 5V-tolerant microcontrollers can drive CS, SCK, SI, WP, and HOLD directly. The AT25HP512-10PI-2.7 requires no external level shifters when interfaced to 5V SPI masters.
What package type is used by the AT25HP512-10PI-2.7, and what are its key mechanical dimensions?
The AT25HP512-10PI-2.7 uses a 16-lead JEDEC SOIC package (16S2), 0.300" wide body. Key dimensions: length 0.413", width 0.299", height 0.104", lead pitch 0.050", and gull-wing lead profile. It complies with JEDEC MS-013 Variation AA and is RoHS-compliant. The AT25HP512-10PI-2.7 is not pin-compatible with 8-lead SOIC or PDIP variants of the same family due to differing pin count and NC placement.
AT25HP512-10PI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 512Kbit
- Memory Organization:
- 64K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 10 MHz
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT25HP512-10PI-2.7 FAQ
1.How can I place an order for AT25HP512-10PI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25HP512-10PI-2.7 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 AT25HP512-10PI-2.7 reliable?
The price and inventory of AT25HP512-10PI-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25HP512-10PI-2.7 is usually 5 days.
3.What payment methods are accepted for AT25HP512-10PI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25HP512-10PI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25HP512-10PI-2.7?
AT25HP512-10PI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25HP512-10PI-2.7 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 AT25HP512-10PI-2.7?
For technical support, including AT25HP512-10PI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25HP512-10PI-2.7 requirements.
6.How does Aetrix verify that AT25HP512-10PI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25HP512-10PI-2.7 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 AT25HP512-10PI-2.7 meets industry standards.
7.What is the process for return or replacement of AT25HP512-10PI-2.7?
All AT25HP512-10PI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25HP512-10PI-2.7, 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 AT25HP512-10PI-2.7 part is unused and in its original packaging.
Return procedure for AT25HP512-10PI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25HP512-10PI-2.7 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
