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STMicroelectronics M27C1001-10C6

Name: M27C1001-10C6
Brand: STMicroelectronics
SKU: M27C1001-10C6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M27C1001-10C6

Manufacturer:: STMicroelectronics

Category:: Memory

Package:: 32-LCC (J-Lead)

Datasheet:: M27C1001-10C6.pdf

Description:: IC EPROM 1MBIT PARALLEL 32PLCC

Quantity:: RFQ Add To RFQ list

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Inventory:3,970

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Product details

Overview

M27C1001-10C6 from STMicroelectronics is a 1 Mbit (128K × 8) UV-erasable EPROM with 35 ns access time, 5V ±10% supply voltage, and FDIP32W ceramic window package enabling ultraviolet erasure. It features dual-line control (E/G), electronic signature (20h/05h), and operates across –40°C to 85°C for embedded microprocessor program storage.

For engineers reviewing the M27C1001-10C6 datasheet, M27C1001-10C6 pinout, M27C1001-10C6 application, or M27C1001-10C6 equivalent, key selection criteria include UV-erasability, 35 ns read timing, TTL-compatible I/O, 12.75V programming voltage, and FDIP32W mechanical compatibility in legacy industrial controller designs.

Technical Context

The M27C1001-10C6 implements a standard NMOS EPROM architecture with address decoding for A0–A16 (131,072 locations), parallel Q0–Q7 data I/O, and two independent enable controls: Chip Enable (E) for power gating and Output Enable (G) for output bus control. Its erase mechanism relies on 2537 Å UV exposure through the ceramic window.

Programming requires VPP = 12.75V ±0.25V, VCC = 6.25V ±0.25V, and 100 µs pulses applied to P while E is low; verification occurs at same VPP with P high. Electronic signature mode uses 12V on A9 to return manufacturer code 20h and device code 05h via Q7–Q0.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	1 Mbit (131,072 × 8), supporting full 16-bit microprocessor instruction fetch without banking
Access Time	35 ns max (tAVQV), enabling direct interface with 20 MHz Z80 or 8086 systems
Supply Voltage	5V ±10% in read mode; supports legacy 5V-only system rails without regulation overhead
Programming Voltage	VPP = 12.75V ±0.25V, requiring dedicated HV generator but ensuring reliable Fowler-Nordheim tunneling
Operating Temp	–40°C to +85°C (Grade 6), validated for industrial PLC and telecom line card environments
Standby Current	100 µA max (ICC2), reducing idle power in battery-backed or energy-constrained systems
Electronic Signature	Manufacturer Code 20h / Device Code 05h, enabling auto-algorithm selection in universal programmers

Pinout & Package

FDIP32W (32-pin ceramic frit-seal DIP with UV-transparent window), 42.0 mm × 15.2 mm body, 2.54 mm lead pitch, 5.72 mm height - designed for socketed insertion and repeat UV erasure cycles.

Pin/Terminal	Circuit Role	Design Meaning
A0–A16	Address Inputs	17-bit address bus accepting full 131K word range; TTL-compatible thresholds (VIL ≤ 0.8V, VIH ≥ 2V)
Q0–Q7	Data Outputs	Bi-directional during programming (data-in), tri-state during standby/read; 2.1 mA sink capability
E	Chip Enable	Primary device select; CMOS-high (VIH > VCC–0.2V) forces 100 µA standby; TTL-low enables active read
G	Output Enable	Secondary output gate; independent of E, prevents bus contention in multi-chip memory arrays
P	Program Control	Active-low pulse input (100 µs width) that initiates byte programming when E = low and VPP = 12.75V
VPP	Programming Supply	Dedicated 12.75V pin; isolated from VCC to prevent logic rail disturbance during high-current programming pulses
VCC	Supply Voltage	5V ±10% for read; 6.25V ±0.25V for programming - separate spec ensures stable core bias during HV operation
VSS	Ground	Common reference for all I/O and internal circuitry; decoupling requires 0.1 µF ceramic per device
NC	No Connect	Pin 17 (DIP) unconnected internally; no routing or termination required

Key Features

Feature	Design Value
UV Erasability	Full array erasure in 15–20 min using 2537 Å lamp at ≥15 W·sec/cm² dose; enables firmware revision in field-deployed units
Dual-Line Output Control	Independent E (power) and G (output) enables zero-power deselection and glitch-free bus sharing across 8+ devices
PRESTO II Programming	Self-terminating algorithm with margin-mode verify eliminates over-programming and guarantees cell endurance >100 cycles
Electronic Signature	Read-only 2-byte ID (20h/05h) at A9 = 12V allows automatic programmer configuration without manual part selection
Wide Temp Range Support	Specified operation from –40°C to +85°C with full AC/DC parameters ensures reliability in uncontrolled industrial enclosures

Applications

Industrial PLC Firmware Storage

Legacy Telecom Line Card Boot Code

Use Scenario: Storing ladder logic interpreter and I/O mapping tables in DIN-rail mounted programmable logic controllers.

IC Role / Device Role / Timing Role: Non-volatile program memory mapped to CPU address space; accessed via 16-bit bus with 35 ns tAVQV meeting Z80/8051 timing budgets.

Use Value: UV window allows on-site firmware updates without board removal; FDIP32W socket compatibility enables rapid field replacement.

Use Scenario: Holding boot loader and DSP initialization code in T1/E1 framing equipment operating in temperature-uncontrolled central office cabinets.

IC Role / Device Role / Timing Role: Primary boot ROM executing on power-up; verified timing margins ensure deterministic reset-to-execution latency under –40°C cold start.

Use Value: 100 µA standby current minimizes heat buildup in densely packed line cards; electronic signature prevents misprogramming during batch rework.

Military Avionics Configuration Memory

Medical Imaging System Calibration Data

Use Scenario: Retaining flight control parameter sets and sensor calibration coefficients in airborne mission computers subject to thermal cycling.

IC Role / Device Role / Timing Role: Read-only configuration store accessed during pre-flight self-test; operates across –40°C to +85°C with no derating.

Use Value: Ceramic FDIP32W package withstands 2000+ thermal cycles; UV erasure permits secure reconfiguration between mission profiles.

Use Scenario: Storing gamma correction LUTs and detector gain offsets in portable X-ray imaging units requiring recalibration after maintenance.

IC Role / Device Role / Timing Role: Static data ROM accessed during system initialization; 35 ns access enables real-time LUT lookup during image acquisition pipeline.

Use Value: PRESTO II programming ensures bit-level accuracy for medical-grade calibration; 12.75V VPP isolation prevents noise coupling into analog front-end circuits.

Equivalent & Alternatives

The following parts are listed as comparable options for similar EPROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AM27C1001-35DC	Same 1 Mbit ×8 organization, 35 ns access, but uses PDIP32 package without UV window; requires one-time programming only.	Not suitable for field-upgradable systems; limited to factory-programmed deployments where erasure is unnecessary.	Select only if cost sensitivity outweighs field reprogrammability and ceramic package robustness is not required.
MX27C1001-35PC	Pin-compatible 1 Mbit EPROM with identical FDIP32W package and 35 ns timing, but manufactured by Macronix with different programming algorithm timing.	Requires updated programmer firmware for PRESTO II-equivalent verify sequence; UV erasure characteristics differ slightly (20 min vs. 18 min at same dose).	Valid drop-in replacement only after validation on target programming hardware and UV erasure station.

Compared with AM27C1001-35DC, M27C1001-10C6 provides field-erasable flexibility at the cost of higher packaging expense; versus MX27C1001-35PC, it guarantees ST's PRESTO II margin-mode programming and full datasheet compliance for legacy ST-based toolchains.

Availability

M27C1001-10C6 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy telecom line card boot code, and military avionics configuration memory requiring stable component supply across extended product lifecycles.

Supply support for M27C1001-10C6 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering automotive, industrial, and power discrete solutions with vertical manufacturing and long-term product stewardship.

The M27C1001 belongs to ST's legacy EPROM product line, engineered specifically for high-reliability, field-upgradable embedded systems where UV erasability, wide temperature operation, and pin-level compatibility with 1980s–1990s microprocessor buses are mandatory.

FAQ

What UV wavelength and exposure dose are required to fully erase the M27C1001-10C6?

The M27C1001-10C6 requires short-wave ultraviolet light at 2537 Å with a minimum integrated dose of 15 W·sec/cm². Using a standard 12,000 µW/cm² UV lamp, erasure is complete in 15–20 minutes when the device is placed within 2.5 cm of the lamp source. Fluorescent ambient lighting may cause partial erasure over years; opaque window labels are recommended for long-term storage.

Can the M27C1001-10C6 be operated with VCC = 5V during programming?

No. Programming requires VCC = 6.25V ±0.25V and VPP = 12.75V ±0.25V applied simultaneously, with VCC established before or concurrently with VPP. Using 5V for VCC during programming violates the DC characteristics table and risks incomplete programming or reduced data retention due to insufficient tunneling voltage margin.

How does the dual-line control (E and G) prevent bus contention in multi-EPROM systems?

E controls power state: when high, ICC drops to 100 µA and outputs go high-Z regardless of G. G controls output drivers only: when low and E is low, Q0–Q7 drive valid data; when high and E is low, outputs enter high-Z without affecting power. This allows one E line per device (for power isolation) and shared G across all devices (for synchronized read gating), eliminating contention during partial array access.

Is the electronic signature accessible at full operating temperature range?

No. The electronic signature mode is specified only at TA = 25°C ±5°C, matching the programming ambient requirement. At –40°C or +85°C, A9 voltage tolerance (11.5–12.5V) and output drive strength are not guaranteed for signature readback; it is intended solely for room-temperature programmer identification prior to programming or erasure.

M27C1001-10C6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 32-LCC (J-Lead)

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: EPROM

Technology:: EPROM - OTP

Memory Size:: 1Mbit

Memory Organization:: 128K x 8

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: -

Access Time:: 100 ns

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 32-PLCC (11.35x13.89)

M27C1001-10C6 FAQ

1.How can I place an order for M27C1001-10C6 through Aetrix?

Please submit a Request for Quotation (RFQ) for M27C1001-10C6 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 M27C1001-10C6 reliable?

The price and inventory of M27C1001-10C6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M27C1001-10C6 is usually 5 days.

3.What payment methods are accepted for M27C1001-10C6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M27C1001-10C6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M27C1001-10C6?

M27C1001-10C6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M27C1001-10C6 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 M27C1001-10C6?

For technical support, including M27C1001-10C6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M27C1001-10C6 requirements.

6.How does Aetrix verify that M27C1001-10C6 is sourced from the original manufacturer or authorized distributors?

All M27C1001-10C6 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 M27C1001-10C6 meets industry standards.

7.What is the process for return or replacement of M27C1001-10C6?

All M27C1001-10C6 units undergo pre-shipment inspection (PSI). If there is an issue with M27C1001-10C6, 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 M27C1001-10C6 part is unused and in its original packaging.

Return procedure for M27C1001-10C6:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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