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STMicroelectronics M27C1001-10C1

Name: M27C1001-10C1
Brand: STMicroelectronics
SKU: M27C1001-10C1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M27C1001-10C1

Manufacturer:: STMicroelectronics

Category:: Memory

Package:: 32-LCC (J-Lead)

Datasheet:: M27C1001-10C1.pdf

Description:: IC EPROM 1MBIT PARALLEL 32PLCC

Quantity:: RFQ Add To RFQ list

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Inventory:1,308

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Product details

Overview

M27C1001-10C1 from STMicroelectronics is a 1 Mbit (131,072 × 8) UV-erasable EPROM with 35 ns access time, 5 V ±10% supply voltage, and dual-line control (E/G) for low-power memory arrays. It features electronic signature (20h/05h), 12.75 V programming voltage, and is packaged in PLCC32 for industrial microprocessor systems requiring field-erasable firmware storage.

For engineers reviewing the M27C1001-10C1 datasheet, M27C1001-10C1 pinout, M27C1001-10C1 application, or M27C1001-10C1 equivalent, key selection criteria include UV erasability, TTL-compatible timing, standby current of 100 µA, and PLCC32 mechanical compatibility with legacy 80Cxx/8051-based boot ROM designs.

Technical Context

The M27C1001-10C1 implements a two-control-line architecture: Chip Enable (E) governs power state and device selection, while Output Enable (G) independently gates data output-enabling bus contention avoidance in multi-chip memory systems. Its read mode requires both E and G low to drive Q0–Q7 outputs.

Programming uses 12.75 V on VPP with 100 µs pulse width per word at VCC = 6.25 V; erasure requires UV exposure (2537 Å, ≥15 W·s/cm²) through the PLCC32's transparent lid. Electronic signature verification applies 12 V to A9 to read manufacturer code (20h) and device code (05h) via Q7–Q0.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	1 Mbit (131,072 words × 8 bits) - supports full 16-bit address space with A0–A16 addressing
Access Time	35 ns - guarantees data valid within 35 ns after E or G assertion, enabling 28.6 MHz bus operation
Supply Voltage	5 V ±10% - compatible with standard TTL/CMOS logic rails without regulation
Standby Current	100 µA - enables low-power hold state when E is high, critical for battery-backed systems
Programming Voltage	12.75 V ±0.25 V - requires dedicated VPP rail; not derived from VCC
Operating Temp	–40 to 125 °C - qualified for extended industrial environments including engine control units
Electronic Signature	Manufacturer Code 20h / Device Code 05h - enables automatic algorithm selection in universal programmers

Pinout & Package

Package: PLCC32 (Plastic Leaded Chip Carrier, 32-pin, J-lead, 12.5 mm × 12.5 mm body, 1.0 mm height). Features ceramic lid window for UV erasure and lead finish compliant with Pb-free reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
A0–A16	Address Inputs	17-bit address bus supporting full 131,072-word decoding; TTL-compatible thresholds
Q0–Q7	Data Outputs	Bi-directional I/O during programming; high-impedance when E or G inactive
E	Chip Enable	Primary device select; high = standby (100 µA), low = active power (30 mA @ 5 MHz)
G	Output Enable	Secondary output gate; allows shared G-bus across multiple EPROMs without contention
P	Program Control	Active-low pulse input; initiates programming only when E = low and VPP = 12.75 V
VPP	Programming Supply	Dedicated 12.75 V input; must be applied simultaneously with or after VCC
VCC	Power Supply	5 V ±10% main supply; 6.25 V required during programming (not 5 V)
VSS	Ground	Reference for all inputs/outputs; decoupling requires 0.1 µF ceramic + 4.7 µF bulk per 8 devices

Key Features

Feature	Design Value
UV Erasability	Full array erase in 15–20 min using 2537 Å UV lamp (12,000 µW/cm²); windowed PLCC32 enables field reprogramming
Two-Line Output Control	E selects device power state; G controls output drivers - eliminates bus contention in multi-EPROM systems
Presto II Programming	Guaranteed margin programming with auto-verify; no over-program pulses required; typical full-array time = 13 s
Electronic Signature	Read-only ID mode (A9 = 12 V) returns STMicroelectronics manufacturer code (20h) and M27C1001 device code (05h)
Extended Temperature Range	–40 to 125 °C operation - validated for under-hood automotive and industrial PLC applications

Applications

Automotive Engine Control Unit (ECU)

Industrial PLC Firmware Storage

Use Scenario: Stores calibrated fuel injection maps and diagnostic routines in engine management systems subject to thermal cycling and vibration.

IC Role / Device Role / Timing Role: Boot ROM providing non-volatile program storage; accessed during cold start before RAM initialization.

Use Value: UV erasability allows field updates of calibration tables without PCB replacement; 125 °C rating ensures reliability near exhaust manifolds.

Use Scenario: Holds ladder logic firmware and I/O configuration in programmable logic controllers deployed in factory automation cabinets.

IC Role / Device Role / Timing Role: Primary program memory mapped to CPU address space; selected via decoded E signal in multi-chip memory bank.

Use Value: Dual-line control (E/G) prevents bus contention during hot-swap maintenance; 100 µA standby current reduces cabinet thermal load.

Legacy 8051-Based Medical Device

Avionics Test Equipment Bootloader

Use Scenario: Stores bootloader and safety-critical initialization code in Class II medical instruments requiring regulatory traceability.

IC Role / Device Role / Timing Role: Secure boot ROM with electronic signature verification ensuring correct firmware version prior to execution.

Use Value: Manufacturer/device codes (20h/05h) enable automated pre-flash validation in certified production test fixtures.

Use Scenario: Provides self-test firmware and interface protocol handlers in portable avionics ground support equipment.

IC Role / Device Role / Timing Role: Non-volatile storage for IEEE-488/GPIB controller firmware; accessed via ISA bus with strict 35 ns timing compliance.

Use Value: 35 ns access time meets legacy PC/104 timing budgets; PLCC32 footprint ensures mechanical compatibility with aging test rack designs.

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 AMD's proprietary programming algorithm and signature codes (01h/05h)	Requires AMD-specific programmer firmware; identical PLCC32 footprint and DC specs	Select if existing toolchain supports AMD signature verification and margin programming
MX27C1001-35PC	Macronix variant with identical AC/DC specs and PLCC32 package, but different UV erasure dose requirement (20 W·s/cm² vs. 15 W·s/cm²)	Longer UV exposure needed for full erase; same electronic signature structure (20h/05h)	Choose for second-source assurance where STMicroelectronics supply continuity is constrained

Compared with AM27C1001-35DC and MX27C1001-35PC, the M27C1001-10C1 offers tighter VPP tolerance (±0.25 V), verified 125 °C operation, and Presto II programming with built-in margin verification-reducing risk of marginal writes in high-reliability systems.

Availability

M27C1001-10C1 is available at Aetrix Electronics and suitable for automotive ECU development, industrial PLC firmware updates, and legacy 8051-based medical device manufacturing requiring stable component supply across long product lifecycles.

Supply support for M27C1001-10C1 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, specializing in automotive, industrial, and power management ICs with vertical manufacturing capability.

The M27C1001 belongs to ST's legacy EPROM product line, designed specifically for high-reliability, field-upgradable firmware storage in microprocessor systems where UV erasability and long-term data retention (>10 years) are mandatory.

FAQ

What is the minimum UV exposure dose required to fully erase the M27C1001-10C1?

The M27C1001-10C1 requires a minimum integrated UV dose of 15 W·s/cm² at 2537 Å wavelength. Using a standard 12,000 µW/cm² lamp, this equates to 15–20 minutes of exposure with the device placed ≤2.5 cm from the lamp source. Opaque labeling is recommended if exposed to ambient fluorescent lighting for >3 years.

Can the M27C1001-10C1 operate with VCC = 5 V during programming?

No. Programming requires VCC = 6.25 V ±0.25 V and VPP = 12.75 V ±0.25 V applied simultaneously. Using 5 V on VCC during programming violates the datasheet specification and may result in incomplete or unreliable bit programming. The 6.25 V level is explicitly defined in Table 9 for programming-mode DC characteristics.

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

E controls power state: when high, the device draws only 100 µA and forces outputs to high-impedance regardless of G. G controls output drivers only when E is low. This allows E to be uniquely decoded per device while sharing G across all EPROMs-ensuring only one device drives the data bus at any time, eliminating contention.

Is the PLCC32 package of the M27C1001-10C1 RoHS-compliant?

Yes. The M27C1001-10C1 PLCC32 package uses lead-free terminations and complies with RoHS Directive 2011/65/EU. STMicroelectronics' official packaging documentation (Doc ID 11427) confirms Pb-free matte tin plating on J-leads and halogen-free molding compound, qualified for standard SnPb and lead-free reflow profiles.

M27C1001-10C1 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:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

M27C1001-10C1 FAQ

1.How can I place an order for M27C1001-10C1 through Aetrix?

Please submit a Request for Quotation (RFQ) for M27C1001-10C1 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 M27C1001-10C1 reliable?

The price and inventory of M27C1001-10C1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M27C1001-10C1 is usually 5 days.

3.What payment methods are accepted for M27C1001-10C1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M27C1001-10C1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M27C1001-10C1?

M27C1001-10C1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M27C1001-10C1 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 M27C1001-10C1?

For technical support, including M27C1001-10C1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M27C1001-10C1 requirements.

6.How does Aetrix verify that M27C1001-10C1 is sourced from the original manufacturer or authorized distributors?

All M27C1001-10C1 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 M27C1001-10C1 meets industry standards.

7.What is the process for return or replacement of M27C1001-10C1?

All M27C1001-10C1 units undergo pre-shipment inspection (PSI). If there is an issue with M27C1001-10C1, 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 M27C1001-10C1 part is unused and in its original packaging.

Return procedure for M27C1001-10C1:

1.Submit a request within 90 days.

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

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