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Microchip Technology AT27C010L-70PI
- Part No.:
- AT27C010L-70PI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-DIP (0.600", 15.24mm)
- Datasheet:
-
AT27C010L-70PI.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,197
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Product details
Overview
AT27C010L-70PI from Atmel is a 128K × 8-bit one-time programmable EPROM (OTP EPROM) with 45 ns read access time, 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It features CMOS/TTL-compatible I/O, 2000V ESD protection, and rapid 100 µs/byte programming. Used in firmware storage for microprocessor-based embedded controllers requiring non-volatile, pin-verified boot code.
For engineers reviewing the AT27C010L-70PI datasheet, AT27C010L-70PI pinout, AT27C010L-70PI application, or AT27C010L-70PI equivalent, key selection criteria include standby current (≤100 µA), VPP programming voltage (12.0 V ±0.5 V), TSOP/PDIP/PLCC package compatibility, and Rapid™ algorithm support for high-throughput production programming.
Technical Context
The AT27C010L-70PI implements a standard OTP EPROM architecture with dual-line control (CE and OE) enabling bus contention avoidance in multi-device systems. Its address space spans A0–A16 (128K locations), with O0–O7 bidirectional data outputs during read and program verify modes.
It supports three distinct operating modes: Read (CE=OE=VIL), Standby (CE=VIH), and Rapid Program (CE=VIL, OE=VIH, PGM=VIL at VPP=12.0 V). Product identification is accessed via A9=VH and A0 toggled, returning manufacturer (0x1E) and device code (0x05) bytes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 128K × 8-bit (1,048,576 bits); sufficient for full boot firmware images in 8-bit/16-bit microcontrollers. |
| Read Access Time | 70 ns max; enables direct interface with 12 MHz Z80, 8051, or 68K-family processors without wait states. |
| VCC Supply | 5V ±10%; compatible with legacy TTL/CMOS logic rails and eliminates need for dedicated voltage regulators. |
| Standby Current | 100 µA max; reduces system power budget in always-on industrial control modules. |
| Active Current | 25 mA max at 5 MHz; allows sustained burst reads without thermal derating in compact PCB layouts. |
| VPP Programming Voltage | 12.0 V ±0.5 V; requires external high-voltage supply but ensures reliable oxide breakdown during OTP write. |
| ESD Protection | 2000V HBM; meets IEC 61000-4-2 Level 2 for handling in unshielded manufacturing environments. |
Pinout & Package
AT27C010L-70PI is supplied in a 32-lead PDIP (Plastic Dual Inline Package), 0.600" wide (32P6), with through-hole mounting and JEDEC MS-016 compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus; selects one of 131,072 bytes; A16 enables full 128K decoding. |
| O0–O7 | Data Outputs | 8-bit bidirectional data bus; driven during read/verify; high-Z when CE or OE inactive. |
| CE | Chip Enable | Active-low chip select; controls device activation and power state transition between active/standby. |
| OE | Output Enable | Active-low output gate; decouples data bus from outputs to prevent contention during shared-bus operation. |
| PGM | Program Strobe | Active-low pulse input (100 µs width); initiates byte programming when VPP=12 V and CE=VIL. |
| VPP | Programming Voltage | 12.0 V ±0.5 V input; must be applied after VCC and removed before VCC to avoid latch-up. |
| VCC | Power Supply | +5V ±10% main supply; powers logic and output drivers; requires 0.1 µF ceramic bypass capacitor. |
| GND | Ground Reference | Signal and power return; must be low-inductance connection to minimize noise during programming. |
| NC | No Connect | Pin 22 (PDIP) and Pin 13 (PLCC); electrically isolated; no internal connection or function. |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time; reduces production burn-in cycle by >60% vs. conventional EPROMs. |
| Integrated Product ID Code | Manufacturer ID (0x1E) and Device Code (0x05) accessible via A9/VH and A0 toggle; enables auto-detection in universal programmers. |
| Two-Line Control Architecture | Independent CE and OE inputs allow flexible bus arbitration-OE can float while CE remains active for partial decode schemes. |
| High-Reliability CMOS Process | 200 mA latchup immunity per JEDEC JESD78; prevents destructive failure during transient overvoltage events on shared PCB traces. |
| JEDEC-Standard Packages | Pin-compatible across PDIP, PLCC, and TSOP footprints; enables same schematic reuse with mechanical form-factor optimization. |
Applications
| Industrial PLC Firmware Storage | Legacy Microcontroller Boot ROM |
|---|---|
|
Use Scenario: Fixed-function programmable logic controller storing ladder logic interpreter and I/O mapping tables. IC Role / Device Role / Timing Role: Non-volatile boot memory mapped to CPU address space; accessed at power-on reset with ≤70 ns latency. Use Value: Eliminates need for external EEPROM initialization sequence; guarantees deterministic startup timing under –40°C cold-start conditions. |
Use Scenario: 8051-based medical sensor node requiring certified, unalterable firmware for FDA Class II compliance. IC Role / Device Role / Timing Role: OTP EPROM holding bootloader and calibration constants; programmed once during final test and sealed. Use Value: Prevents field firmware tampering; leverages 2000V ESD rating to survive electrostatic discharge in clinical environments. |
| Automotive Instrument Cluster Display | Telecom Line Card Configuration |
|
Use Scenario: Analog dashboard cluster with stepper motor drivers and segmented LCD, storing display lookup tables. IC Role / Device Role / Timing Role: Read-only memory for static graphics and font bitmaps; accessed via 8-bit parallel bus at 4–6 MHz. Use Value: Industrial-grade temperature range (–40°C to +85°C) ensures reliability inside vehicle cabin without thermal derating. |
Use Scenario: T1/E1 line interface card storing protocol stack configuration and hardware initialization vectors. IC Role / Device Role / Timing Role: Firmware repository for FPGA configuration loader and DSP boot image; read during power-up sequence. Use Value: 100 µA max standby current minimizes quiescent draw on backup battery during AC power loss events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C010-70PI | Higher active current (35 mA vs. 25 mA); identical pinout, timing, and programming voltage. | Suitable where higher drive strength needed for long trace lengths or heavy capacitive loads. | Select only if system power budget permits +10 mA active draw and VPP tolerance matches. |
| MX27C1000PC-70 | Same 128K×8 OTP EPROM, 70 ns access, but requires 25 V VPP and lacks integrated ID code. | Requires dedicated high-voltage programming supply; not supported by modern auto-ID programmers. | Choose only for legacy equipment compatibility; avoid for new designs due to obsolete VPP requirement. |
Compared with AT27C010L-70PI, the AT27C010-70PI trades lower standby power for higher active consumption, while MX27C1000PC-70 introduces incompatible programming infrastructure-making AT27C010L-70PI optimal for cost-sensitive, high-volume industrial firmware storage with modern programming toolchains.
Availability
AT27C010L-70PI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy microcontroller boot ROM, and telecom line card configuration requiring stable component supply across extended product lifecycles.
Supply support for AT27C010L-70PI 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
Atmel Corporation (now part of Microchip Technology) is a semiconductor company specializing in microcontrollers, non-volatile memory, and secure authentication ICs.
The AT27C010(L) series was designed for cost-effective, high-reliability firmware storage in industrial and automotive systems where reprogrammability is unnecessary but data integrity and long-term retention are critical.
FAQ
What is the maximum operating temperature range for the AT27C010L-70PI?
The AT27C010L-70PI is rated for industrial temperature operation from –40°C to +85°C. This range is confirmed in the Ordering Information table on page 11 of the datasheet, where "AT27C010L-70PI" explicitly maps to the Industrial grade (–40°C to +85°C) with 32P6 (PDIP) packaging. It is not qualified for automotive (–40°C to +125°C) use.
Does the AT27C010L-70PI require a separate VPP programming voltage during normal read operation?
No. The AT27C010L-70PI operates on a single 5V ±10% supply (VCC) during read mode. VPP (12.0 V ±0.5 V) is required only during programming and verification cycles. During read, VPP may be tied to VCC per datasheet Note 2 on page 3, but must be isolated during programming to prevent damage.
Can the AT27C010L-70PI be used as a drop-in replacement for the AT27C010-70PI?
The AT27C010L-70PI is pin-compatible and functionally identical to the AT27C010-70PI in read and programming modes, differing only in active current (25 mA vs. 35 mA) and standby current (100 µA vs. 1 mA). No PCB changes are required, but system-level current budgeting must account for the 10 mA reduction in active mode.
How is the Integrated Product Identification Code accessed on the AT27C010L-70PI?
The ID code is read by setting A9 = VH (12.0 V ±0.5 V), holding A1–A16 = VIL, and toggling A0 between VIL (to read Manufacturer ID = 0x1E) and VIH (to read Device Code = 0x05), with CE = OE = VIL. This sequence is defined in the "Product Identification" section on page 4 and verified in the timing diagram on page 8.
What decoupling capacitance is required for stable operation of the AT27C010L-70PI?
A 0.1 µF high-frequency ceramic capacitor must be placed between VCC and GND, as close as possible to the AT27C010L-70PI pins. For boards with multiple EPROMs, a 4.7 µF bulk electrolytic capacitor is also required near the array's power entry point-both requirements are specified in the "System Considerations" section on page 2.
AT27C010L-70PI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-DIP (0.600", 15.24mm)
- 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:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 32-PDIP
AT27C010L-70PI FAQ
1.How can I place an order for AT27C010L-70PI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010L-70PI 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 AT27C010L-70PI reliable?
The price and inventory of AT27C010L-70PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010L-70PI is usually 5 days.
3.What payment methods are accepted for AT27C010L-70PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010L-70PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010L-70PI?
AT27C010L-70PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010L-70PI 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 AT27C010L-70PI?
For technical support, including AT27C010L-70PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010L-70PI requirements.
6.How does Aetrix verify that AT27C010L-70PI is sourced from the original manufacturer or authorized distributors?
All AT27C010L-70PI 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 AT27C010L-70PI meets industry standards.
7.What is the process for return or replacement of AT27C010L-70PI?
All AT27C010L-70PI units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010L-70PI, 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 AT27C010L-70PI part is unused and in its original packaging.
Return procedure for AT27C010L-70PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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