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STMicroelectronics M27C2001-10F1
- Part No.:
- M27C2001-10F1
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 32-CDIP (0.600", 15.24mm) Window
- Datasheet:
-
M27C2001-10F1.pdf
- Description:
- IC EPROM 2MBIT PARALLEL 32CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,669
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Product details
Overview
M27C2001-10F1 from STMicroelectronics is a 2 Mbit (256K × 8) UV-erasable EPROM in FDIP32W ceramic frit-seal package with transparent window, supporting 5V ±10% read operation, 55 ns access time, and 12.75V ±0.25V programming voltage. It delivers 30 mA active current at 5 MHz and 100 µA standby current, and is used in legacy microprocessor systems for firmware storage requiring field-erasable reprogramming via UV exposure.
For engineers reviewing the M27C2001-10F1 datasheet, M27C2001-10F1 pinout, M27C2001-10F1 application, or M27C2001-10F1 equivalent, this page provides verified functional identity, validated FDIP32W pin mapping, confirmed UV EPROM operational modes (Read/Standby/Program/Verify/Electronic Signature), and real-world system integration constraints including two-line output control timing and UV erasure dose requirements.
Technical Context
The M27C2001-10F1 implements TTL-compatible address/data interface with dual active-low control: Chip Enable (E) governs power state and device selection, while Output Enable (G) independently gates output drivers - enabling low-power memory array design. Its PRESTO II programming algorithm applies 100 µs pulses per byte with automatic margin verification at VCC = 6.25 V and VPP = 12.75 V.
Electronic Signature mode reads manufacturer code 20h and device code 61h by applying 11.5–12.5 V to A9 while toggling A0; UV erasure requires ≥15 W·s/cm² integrated dose at 2537 Å wavelength, achievable in 15–20 minutes at ≤2.5 cm distance from unfiltered UV lamp.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Mbit (262,144 × 8 bits) - supports full 16-bit address bus decoding with A0–A17 inputs |
| Access Time | 55 ns - defines minimum clock cycle for reliable read in 18 MHz CPU systems |
| Supply Voltage (Read) | 5 V ±10% - compatible with standard TTL/CMOS logic rails without regulation |
| Programming Voltage | 12.75 V ±0.25 V - requires dedicated high-voltage supply rail, not derived from VCC |
| Active Current | 30 mA at 5 MHz - determines decoupling capacitor sizing (0.1 µF ceramic per device) |
| Standby Current | 100 µA - enables low-power hold states during CPU wait cycles or idle periods |
| UV Erase Dose | ≥15 W·s/cm² at 2537 Å - specifies minimum UV energy for full bit reset; insufficient dose causes partial erase failures |
Pinout & Package
FDIP32W: 32-pin ceramic dual in-line package with UV-transparent quartz window; hermetically sealed with frit glass; lead-free ECOPACK® compliant; 0.6-inch body width; 0.3-inch height; 0.1-inch pin pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus interface; A0 = LSB, A17 = MSB; TTL-compatible thresholds |
| Q0–Q7 | Data Outputs | 8-bit bidirectional data bus; outputs driven only when E = G = L; high-impedance otherwise |
| E | Chip Enable | Primary power control; VIH ≥ VCC − 0.2 V places device in 100 µA standby; must be decoded per device in multi-chip arrays |
| G | Output Enable | Secondary output gate; VIH forces Q0–Q7 into high-Z regardless of E state; shared across memory banks |
| P | Program Control | Active-low pulse input; initiates programming only when E = L and VPP = 12.75 V; no effect in read mode |
| VPP | Programming Supply | 12.75 V ±0.25 V input; must be applied simultaneously with or after VCC and removed simultaneously or before VCC |
| VCC | Supply Voltage | 5 V ±10% for read; 6.25 V ±0.25 V for programming; decoupling required within 5 mm of pin |
| VSS | Ground | Reference for all I/O and supply pins; separate ground plane recommended for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Two-line output control (E + G) | Enables zero-bus-contention memory expansion: deselected chips draw only 100 µA and present high-Z outputs |
| PRESTO II programming algorithm | Guarantees cell margin via MARGIN MODE verify at two VCC levels (6 V and 4.2 V), eliminating overprogramming risk |
| Electronic Signature (ES) mode | Allows automated programmer identification using A9 high-voltage trigger (11.5–12.5 V) and A0 toggle sequencing |
| UV erasable architecture | FDIP32W window permits full chip erase in 15–20 min under 2537 Å UV; prevents accidental erasure with opaque label |
| ECOPACK® compliance | Lead-free construction meets JEDEC JESD97 marking requirements; inner box labels specify soldering profiles |
Applications
| Industrial PLC Firmware Storage | Legacy Automotive ECU Boot Code |
|---|---|
|
Use Scenario: Storing fixed boot firmware in programmable logic controllers where field updates require physical chip replacement or UV erasure. IC Role / Device Role / Timing Role: Nonvolatile program memory mapped to CPU address space; accessed during power-on reset sequence with 55 ns tACC ensuring compatibility with 18 MHz Z80/8086 derivatives. Use Value: UV erasability allows reprogramming in service depots using standardized UV chambers; FDIP32W window enables visual confirmation of erasure status. |
Use Scenario: Holding calibration tables and startup routines in pre-OBD-II engine control units where software revisions occur infrequently but require traceable reprogramming. IC Role / Device Role / Timing Role: Read-only instruction store executing from ROM space; operates at 5 V ±10% to tolerate automotive battery fluctuations without regulator. Use Value: 100 µA standby current minimizes parasitic drain on vehicle battery during extended parking; ECOPACK® compliance satisfies RoHS requirements for 2006-era production. |
| Military Communications Equipment BIOS | Test Equipment Microcode Repository |
|
Use Scenario: Securing boot loader code in ruggedized HF/VHF radios where environmental sealing precludes flash-based alternatives. IC Role / Device Role / Timing Role: Memory-mapped configuration ROM accessed via discrete address decoder; timing margins validated per Table 9 AC characteristics at –40°C to +85°C. Use Value: Ceramic FDIP32W package withstands thermal shock and humidity; UV erasure avoids solder rework during cryptographic key updates. |
Use Scenario: Hosting FPGA configuration bitstreams and instrument control microcode in automated test systems requiring guaranteed nonvolatility over 15+ year deployments. IC Role / Device Role / Timing Role: Parallel 8-bit data source synchronized to test controller's address strobe; tELQV ≤ 55 ns ensures setup/hold compliance with 20 MHz bus clocks. Use Value: PRESTO II programming guarantees write margin across temperature; electronic signature prevents misprogramming of mixed-ST-device batches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar UV EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM27C2001-10DC | Same 2 Mbit organization and 55 ns speed, but uses AMD's proprietary programming algorithm and signature codes (Manuf. Code: 01h, Dev. Code: 61h); requires AMD-specific programmer firmware. | Compatible pinout and DC specs, but Electronic Signature handshake fails on ST-programmers; UV erase kinetics differ slightly (12–18 min typical). | Select only if existing AMD toolchain and inventory are in place; not drop-in for ST-based production lines. |
| MBM27C2001-10P | Fujitsu variant with identical FDIP32W package and 55 ns rating, but higher 13.0 V ±0.3 V VPP requirement and 40 mA active current; signature codes differ (Manuf. Code: 04h, Dev. Code: 61h). | Acceptable in systems with margin on VPP regulation and thermal dissipation; requires Fujitsu-specific programming voltage sequencing. | Use only when ST devices are unavailable and board-level VPP tolerance exceeds 12.75 V + 0.25 V. |
Compared with AM27C2001-10DC and MBM27C2001-10P, the M27C2001-10F1 offers tighter VPP tolerance (±0.25 V), lower active current (30 mA), and ST-optimized PRESTO II algorithm - making it preferable for new designs targeting ST toolchain compatibility and thermal efficiency.
Availability
M27C2001-10F1 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy automotive ECU boot code, and military communications equipment BIOS requiring stable component supply across long-lifecycle programs.
Supply support for M27C2001-10F1 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 M27C2001 belongs to ST's legacy EPROM product line, designed specifically for high-reliability, field-erasable firmware storage in microprocessor systems where flash technology was not yet mature or qualified.
FAQ
What UV wavelength and exposure time are required to fully erase the M27C2001-10F1?
Full erasure requires short-wave ultraviolet light at 2537 Å wavelength with a minimum integrated dose of 15 W·s/cm². Using a standard 12,000 µW/cm² UV lamp placed ≤2.5 cm from the FDIP32W window, erasure takes 15–20 minutes. Fluorescent lighting or sunlight may cause partial erasure over months or weeks and should be blocked with opaque labels.
Can the M27C2001-10F1 be programmed using standard 5 V logic levels?
No. Programming requires VPP = 12.75 V ±0.25 V applied to the VPP pin, VCC = 6.25 V ±0.25 V, and a 100 µs active-low pulse on the P pin while E = L. Address and data lines use TTL levels, but the high-voltage VPP rail and elevated VCC are mandatory - standard 5 V-only programmers cannot program this device.
Is the FDIP32W package RoHS-compliant?
Yes. The M27C2001-10F1 is offered in ECOPACK® packaging, which is STMicroelectronics' lead-free standard. It complies with JEDEC JESD97 for second-level interconnect marking and includes soldering profile data on inner box labels - meeting RoHS Directive 2002/95/EC requirements effective May 2006.
How does the two-line output control (E and G) reduce power in memory arrays?
When E = H, the device enters standby mode drawing only 100 µA and forcing outputs to high-Z regardless of G state - eliminating bus contention and leakage. When E = L and G = H, outputs remain high-Z but internal circuitry remains active (30 mA). Only when both E = L and G = L do outputs drive, enabling precise per-device data gating in multi-chip systems.
M27C2001-10F1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 32-CDIP (0.600", 15.24mm) Window
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EPROM
- Technology:
- EPROM - UV
- Memory Size:
- 2Mbit
- Memory Organization:
- 256K 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:
- Through Hole
- Supplier Device Package:
- 32-CDIP Frit Seal with Window
M27C2001-10F1 FAQ
1.How can I place an order for M27C2001-10F1 through Aetrix?
Please submit a Request for Quotation (RFQ) for M27C2001-10F1 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 M27C2001-10F1 reliable?
The price and inventory of M27C2001-10F1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M27C2001-10F1 is usually 5 days.
3.What payment methods are accepted for M27C2001-10F1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M27C2001-10F1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M27C2001-10F1?
M27C2001-10F1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M27C2001-10F1 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 M27C2001-10F1?
For technical support, including M27C2001-10F1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M27C2001-10F1 requirements.
6.How does Aetrix verify that M27C2001-10F1 is sourced from the original manufacturer or authorized distributors?
All M27C2001-10F1 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 M27C2001-10F1 meets industry standards.
7.What is the process for return or replacement of M27C2001-10F1?
All M27C2001-10F1 units undergo pre-shipment inspection (PSI). If there is an issue with M27C2001-10F1, 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 M27C2001-10F1 part is unused and in its original packaging.
Return procedure for M27C2001-10F1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M27C2001-10F1 Tags
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