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STMicroelectronics M27C1001-10F1
- Part No.:
- M27C1001-10F1
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 32-CDIP (0.600", 15.24mm) Window
- Datasheet:
-
M27C1001-10F1.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,361
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Product details
Overview
M27C1001-10F1 from STMicroelectronics is a 1 Mbit (131,072 × 8) UV-erasable EPROM in FDIP32W ceramic window package, operating at 5V ±10%, with 100 ns access time, 30 mA active current, and 100 µA standby current. It serves as non-volatile program storage in legacy microprocessor systems requiring field-erasable firmware.
For engineers reviewing the M27C1001-10F1 datasheet, M27C1001-10F1 pinout, M27C1001-10F1 application, or M27C1001-10F1 equivalent, key selection criteria include UV erasure capability, TTL-compatible control timing (tELQV ≤ 100 ns), 12.75 V programming voltage tolerance, and FDIP32W package compatibility with UV exposure fixtures.
Technical Context
The M27C1001-10F1 implements a two-line output control architecture with independent Chip Enable (E) and Output Enable (G) inputs to minimize bus contention and power dissipation in multi-device memory arrays. Its read mode requires E = VIL and G = VIL for valid Q0–Q7 output, with address-to-output delay tAVQV = 100 ns under standard AC conditions.
Programming uses 12.75 V ±0.25 V on VPP, 6.25 V ±0.25 V on VCC, and a 100 µs pulse on P while E = VIL; data is latched on Q0–Q7 during programming. Electronic signature mode reads manufacturer code 20h and device code 05h via A9 = 11.5–12.5 V and A0 toggling.
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 | 100 ns - defines maximum clock rate for synchronous read cycles in microprocessor buses |
| Supply Voltage | 5 V ±10% - compatible with legacy TTL/CMOS logic rails without regulation overhead |
| Active Current | 30 mA at 5 MHz - determines decoupling capacitor sizing (0.1 µF ceramic per device) |
| Standby Current | 100 µA - enables low-power retention in battery-backed or intermittent operation |
| Programming Voltage | VPP = 12.75 V ±0.25 V - requires dedicated high-voltage supply rail, not derived from VCC |
| UV Erase Dose | ≥15 W·s/cm² at 2537 Å - specifies minimum UV lamp intensity × exposure time for full bit reset |
Pinout & Package
FDIP32W: 32-pin ceramic dual in-line package with UV-transparent frit-seal window (41.9 mm × 15.2 mm × 5.7 mm), designed for direct ultraviolet light exposure during erasure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus accepting full 131K-word range; A9 used as VID input during electronic signature |
| Q0–Q7 | Data Outputs | Bi-directional I/O pins: output data in read/verify, input data during programming |
| E | Chip Enable | Primary device select; CMOS-high (VIH > VCC – 0.2 V) forces standby mode (100 µA) |
| G | Output Enable | Secondary output gate; controls Q0–Q7 Hi-Z state independently of E for bus sharing |
| P | Program Control | Active-low pulse input enabling programming mode when VPP = 12.75 V and E = VIL |
| VPP | Programming Supply | Dedicated 12.75 V pin; must be applied simultaneously with or after VCC and removed before or with VCC |
| VCC | Power Supply | 5 V ±10% read supply; 6.25 V ±0.25 V programming supply - requires separate regulation in system design |
| VSS | Ground | Reference for all I/O and supply pins; requires low-inductance connection to decoupling capacitors |
| NC | No Connect | Internally unconnected pin; must remain floating or tied to VSS per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Two-line output control (E + G) | Eliminates bus contention in multi-chip memory banks by enabling independent device selection and output gating |
| Electronic signature (20h/05h) | Enables automatic algorithm selection in programming equipment via A9 high-voltage activation |
| PRESTO II programming algorithm | Guarantees full-array programming in ~13 seconds with margin-mode verify, eliminating over-program pulses |
| UV erasability (FDIP32W/LCCC32W) | Supports >100 erase/write cycles with 15–20 minute exposure to 2537 Å UV lamps at 12000 µW/cm² |
| TTL/CMOS compatible inputs | Accepts standard logic levels (VIL ≤ 0.8 V, VIH ≥ 2 V) without level-shifting circuitry |
Applications
| Industrial PLC Firmware Storage | Avionics Boot ROM |
|---|---|
Use Scenario: Storing fixed ladder logic and I/O configuration in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile program memory mapped to CPU address space; accessed via synchronous 100 ns read cycles during instruction fetch. Use Value: UV erasability allows field updates of control firmware without board replacement; FDIP32W package enables reprogramming in situ using portable UV erasers. | Use Scenario: Holding boot-up initialization code and flight-critical self-test routines in airborne computing modules certified to DO-254. IC Role / Device Role / Timing Role: Primary boot ROM executing immediately after power-on reset; timing-critical due to deterministic startup latency requirements. Use Value: 100 µA standby current ensures minimal power drain during aircraft ground idle; ceramic package provides thermal stability across –40°C to 125°C operational range. |
| Medical Imaging System BIOS | Legacy Telecom Switch Controller |
Use Scenario: Storing diagnostic calibration tables and hardware initialization sequences in X-ray and MRI subsystem controllers. IC Role / Device Role / Timing Role: Configuration memory accessed during power-up sequence; requires guaranteed data retention over 10+ year service life. Use Value: UV-erasable architecture supports regulatory-mandated firmware revisions without redesigning PCBs; 12.75 V programming tolerance ensures compatibility with certified medical-grade programmers. | Use Scenario: Hosting switching matrix control logic and protocol stack initialization in TDM-based telephone exchange line cards. IC Role / Device Role / Timing Role: Memory-mapped instruction store for Z80 or 8086-class processors; operates in electrically noisy central office environments. Use Value: Two-line control (E/G) prevents bus conflicts during hot-swap maintenance; FDIP32W ceramic body resists moisture-induced leakage in humid telecom closets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM27C1001-100DC | Same 1 Mbit ×8 organization, 100 ns access, but uses PDIP32 package without UV window; no erasure capability | Restricted to one-time-programmed applications where field updates are unnecessary | Select only if UV erasure is not required and cost-sensitive volume production favors plastic packaging |
| MX27C1001-10PC | Pin-compatible but rated for 125°C max operating temperature; higher VPP tolerance (13.5 V) | Suitable for extended-temperature industrial deployments where ambient exceeds 85°C | Choose when operating environment exceeds M27C1001-10F1's 125°C limit or higher programming voltage margin is needed |
Compared with AM27C1001-100DC and MX27C1001-10PC, the M27C1001-10F1 uniquely combines UV erasability, FDIP32W package, and verified 100 ns timing - making it irreplaceable for field-serviceable legacy systems requiring repeatable firmware updates.
Availability
M27C1001-10F1 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, avionics boot ROM, and medical imaging system BIOS requiring stable component supply across long-lifecycle programs.
Supply support for M27C1001-10F1 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 discrete technologies with vertical manufacturing capabilities.
The M27C1001 belongs to ST's legacy EPROM product line, engineered specifically for backward-compatible firmware storage in microprocessor-based systems where UV-field reprogrammability and long-term data retention are mandatory.
FAQ
What UV wavelength and exposure time are required to fully erase the M27C1001-10F1?
Full erasure requires exposure to 2537 Å short-wave ultraviolet light at ≥12000 µW/cm² intensity for 15–20 minutes at 2.5 cm distance. Integrated dose must reach ≥15 W·s/cm². Fluorescent lighting or sunlight may cause partial erasure over months or weeks and should be blocked with opaque labels during storage.
Can the M27C1001-10F1 be programmed using standard 5 V logic levels?
No. Programming requires VPP = 12.75 V ±0.25 V applied to pin 32, VCC = 6.25 V ±0.25 V (not 5 V), and a 100 µs low pulse on P while E = VIL. Address and data inputs remain TTL-compatible (0–5 V), but the high-voltage VPP rail is mandatory and must be sequenced correctly relative to VCC.
How does the two-line control (E and G) reduce power consumption in memory arrays?
When E = VIH, the device enters standby mode drawing only 100 µA regardless of G state. G controls output drivers only - so multiple devices can share G while E selects individual chips. This ensures deselected devices draw near-zero active current, cutting total array power by >99% versus single-enable architectures.
Is the FDIP32W package RoHS-compliant?
The M27C1001-10F1 predates RoHS legislation (2006) and contains leaded solder in its ceramic frit-seal construction. STMicroelectronics discontinued RoHS conversion for this part; it remains available as a legacy component for repair and obsolescence management under exemption clauses for spare parts in long-lifecycle equipment.
M27C1001-10F1 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:
- 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:
- Through Hole
- Supplier Device Package:
- 32-CDIP Frit Seal with Window
M27C1001-10F1 FAQ
1.How can I place an order for M27C1001-10F1 through Aetrix?
Please submit a Request for Quotation (RFQ) for M27C1001-10F1 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 M27C1001-10F1 reliable?
The price and inventory of M27C1001-10F1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M27C1001-10F1 is usually 5 days.
3.What payment methods are accepted for M27C1001-10F1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M27C1001-10F1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M27C1001-10F1?
M27C1001-10F1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M27C1001-10F1 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 M27C1001-10F1?
For technical support, including M27C1001-10F1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M27C1001-10F1 requirements.
6.How does Aetrix verify that M27C1001-10F1 is sourced from the original manufacturer or authorized distributors?
All M27C1001-10F1 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 M27C1001-10F1 meets industry standards.
7.What is the process for return or replacement of M27C1001-10F1?
All M27C1001-10F1 units undergo pre-shipment inspection (PSI). If there is an issue with M27C1001-10F1, 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 M27C1001-10F1 part is unused and in its original packaging.
Return procedure for M27C1001-10F1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M27C1001-10F1 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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