My Inquiry
My Account
Microchip Technology AT27C010-12JC
- Part No.:
- AT27C010-12JC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT27C010-12JC.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,333
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT27C010-12JC from Atmel is a 1-Mbit (128K × 8) one-time programmable EPROM designed for firmware storage in microprocessor systems, featuring 120 ns read access time, 5V ±10% supply operation, and JEDEC-standard 32-lead PLCC packaging. It supports rapid programming at 100 µs/byte and delivers 35 mA active current at 5 MHz with 100 µA max standby current.
For engineers reviewing the AT27C010-12JC datasheet, AT27C010-12JC pinout, AT27C010-12JC application, or AT27C010-12JC equivalent, key selection criteria include verified 120 ns tACC timing, industrial temperature range support (–40°C to +85°C), VPP = 12.0 V programming voltage compliance, and compatibility with CMOS/TTL bus interfaces in legacy embedded boot memory designs.
Technical Context
The AT27C010-12JC implements a standard OTP EPROM architecture with dual-line control (CE/OE) enabling bus contention prevention in shared-memory systems. Its address space spans A0–A16 (17-bit), supporting full 128K-byte random access without wait states at ≤5 MHz bus speeds.
Programming requires VPP = 12.0 ± 0.5 V applied during PGM strobe pulses of 95–105 µs width, while read mode operates solely from 5V supply. Product identification is accessed via A9 high-voltage enable (11.5–12.5 V) and A0 toggling to select manufacturer (0x1E) or device code (0x05) bytes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576 bits (128K × 8) - supports full firmware image storage for 8-bit microcontrollers without external paging logic. |
| Read Access Time (tACC) | 120 ns max - enables direct connection to 5 MHz Z80, 8051, or 68K-based systems without wait-state insertion. |
| VCC Supply | 5V ±10% - compatible with standard TTL/CMOS logic rails; no auxiliary voltage regulators required for read operation. |
| Active Current (ICC) | 35 mA max at 5 MHz - defines power budget for multi-device memory subsystems in industrial controllers. |
| Standby Current (ISB1) | 100 µA max (CMOS CE input) - enables low-power retention in battery-backed or energy-constrained systems. |
| Programming Voltage (VPP) | 12.0 ± 0.5 V - requires dedicated high-voltage programming circuitry; not supplied by standard 5V rail. |
| ESD Protection | 2000V HBM - ensures robustness during manual handling and PCB assembly in non-EPA environments. |
Pinout & Package
AT27C010-12JC is packaged in a 32-lead Plastic J-Leaded Chip Carrier (PLCC), JEDEC MS-016 AE compliant, with 1.27 mm pitch and 18.5 mm × 18.3 mm body size. Pin 1 is marked by index notch; seating plane height is 0.220 mm max.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus interface; fully decoded to select any of 128K bytes; TTL/CMOS compatible thresholds. |
| O0–O7 | Data Outputs | 8-bit bidirectional data bus outputs; VOH ≥ 2.4 V at –400 µA, VOL ≤ 0.4 V at 2.1 mA - drives standard logic loads. |
| CE | Chip Enable | Active-low chip select; controls device activation; when high, forces outputs to high-impedance state regardless of OE. |
| OE | Output Enable | Active-low output gate; enables data drivers only when CE is also asserted; prevents bus contention in shared-bus systems. |
| PGM | Program Strobe | Active-low pulse input for programming; triggers 100 µs internal write cycle when VPP = 12 V is present. |
| VPP | Programming Voltage | 12.0 ± 0.5 V input; must be applied before/with VCC and removed after VCC; isolated from read-mode operation. |
| VCC | Power Supply | +5V ±10% main supply; powers logic and output drivers; supplies 35 mA max during active read cycles. |
| GND | Ground Reference | Signal and power return path; requires local 0.1 µF ceramic decoupling per device per datasheet layout guidance. |
| NC | No Connect | Pin 14 (PLCC) is unconnected internally; must remain floating or tied to GND per board design rules - no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time with auto-verify loop - reduces firmware update cycle time by >5× vs. conventional EPROMs. |
| Integrated Product Identification Code | Manufacturer ID (0x1E) and Device Code (0x05) accessible via A9 high-voltage mode - enables automated programmer recognition and algorithm selection. |
| Two-Line Control Architecture | Dedicated CE and OE inputs - allows independent control of chip selection and output driver enable, eliminating bus contention in multi-peripheral systems. |
| High-Reliability Process | 200 mA latchup immunity and 2000 V HBM ESD rating - ensures field reliability in industrial motor drives and factory automation equipment. |
| JEDEC-Standard Packaging Options | 32J (PLCC), 32P6 (PDIP), 32T (TSOP) footprints - supports drop-in replacement across legacy board designs without layout revision. |
Applications
| Industrial PLC Firmware Storage | Legacy Microcontroller Boot Memory |
|---|---|
|
Use Scenario: Storing fixed ladder logic and I/O configuration in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile boot ROM providing deterministic startup sequence and runtime firmware execution without disk latency. Use Value: 120 ns tACC eliminates wait states on 5 MHz 80C188EB buses; industrial temperature rating (–40°C to +85°C) ensures uptime in unconditioned control cabinets. |
Use Scenario: Holding BIOS or monitor code for 8-bit embedded systems such as medical instrument controllers or test equipment. IC Role / Device Role / Timing Role: Primary read-only memory mapped at reset vector address; provides immediate instruction fetch upon power-up. Use Value: 5V-only read operation simplifies power design; CMOS/TTL compatibility avoids level-shifter components in mixed-logic designs. |
| Automotive Engine Control Unit Calibration Data | Avionics System Configuration PROM |
|
Use Scenario: Storing fuel map tables and sensor calibration constants in engine management systems requiring long-term data retention. IC Role / Device Role / Timing Role: Static configuration store accessed during initialization; not modified in-field after programming. Use Value: OTP architecture prevents accidental overwrite; automotive-grade variants support –40°C to +125°C operation under hood conditions. |
Use Scenario: Holding flight-critical configuration parameters in certified avionics modules where firmware immutability is mandated. IC Role / Device Role / Timing Role: Read-only memory used during power-on self-test (POST) to validate system integrity before mission-critical software load. Use Value: 2000 V ESD protection mitigates handling risks during maintenance; JEDEC-standard PLCC package enables reliable socketed deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM27C010-120DC | 120 ns tACC, 5V supply, 32-pin PDIP; same 128K × 8 organization but AMD silicon process - slightly higher ICC (40 mA). | Valid for socketed industrial boards using 0.600" DIP footprint; lacks integrated product ID code. | Select when PDIP mechanical fit is mandatory and programming equipment does not require ID byte verification. |
| MX27C1000PC-12 | 120 ns tACC, 5V supply, 32-pin PDIP; Macronix implementation with identical pinout but 150 µA ISB1 (vs. 100 µA). | Drop-in replacement for legacy AM27C010 designs; supports same programming algorithms but no VPP voltage tolerance spec. | Prefer for cost-sensitive volume production where 50 µA standby margin is acceptable and VPP stability is tightly controlled. |
Compared with AM27C010-120DC and MX27C1000PC-12, the AT27C010-12JC offers tighter standby current (100 µA), integrated ID code for automated programming, and broader temperature grade availability - making it optimal for new designs requiring traceability and extended thermal margin.
Availability
AT27C010-12JC is available at Aetrix Electronics and suitable for industrial PLC firmware storage, legacy microcontroller boot memory, and automotive ECU calibration data applications requiring stable component supply across extended lifecycle windows.
Supply support for AT27C010-12JC 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 fabless semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication ICs for industrial, automotive, and consumer markets.
The AT27C010(L) series was developed as a high-reliability OTP EPROM family targeting firmware storage in resource-constrained embedded systems where data immutability, long-term retention, and JEDEC-standard compatibility are critical.
FAQ
What is the maximum operating temperature range for the AT27C010-12JC?
The AT27C010-12JC is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the Ordering Information table on page 10 of the datasheet, where "AT27C010-12JI" denotes the industrial variant and "AT27C010-12JC" shares identical thermal limits as the PLCC-packaged industrial-grade part. The device meets JEDEC JESD22-A108 reliability standards under this range.
Does the AT27C010-12JC require a separate programming voltage during normal read operation?
No, the AT27C010-12JC operates in read mode using only the 5V ±10% VCC supply - VPP is disconnected and irrelevant during standard memory access. VPP = 12.0 ±0.5 V is required exclusively during programming cycles triggered by the PGM signal, as defined in the DC Programming Characteristics table on page 6. Applying VPP during read mode may damage the device.
Can the AT27C010-12JC be used as a direct replacement for the AT27C010-15JC in an existing design?
Yes, the AT27C010-12JC is pin-compatible and functionally identical to the AT27C010-15JC except for guaranteed read access time: 120 ns vs. 150 ns. All other electrical, timing, and packaging specifications match exactly. Systems designed for the slower -15JC will operate reliably with the -12JC, though no performance improvement is guaranteed beyond the tighter tACC spec.
What decoupling capacitance is required for stable operation of the AT27C010-12JC?
The AT27C010-12JC requires a minimum 0.1 µF high-frequency ceramic capacitor between VCC and GND, placed as close as possible to the device pins. For systems with multiple EPROMs, a 4.7 µF bulk electrolytic capacitor should also be added near the power entry point, per the "System Considerations" section on page 2. These values prevent transient excursions during CE switching that could violate absolute maximum ratings.
How is the manufacturer and device identification code accessed on the AT27C010-12JC?
The AT27C010-12JC provides two identification bytes via its standard address/data pins: set A9 = 11.5–12.5 V (VH), hold A1–A16 = VIL, then toggle A0 between VIL (to read Manufacturer ID = 0x1E) and VIH (to read Device Code = 0x05). This is detailed in Note 4 on page 3 and the "Atmel's 27C010(L) Integrated Product Identification Code" section on page 8.
AT27C010-12JC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- 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:
- 120 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (13.97x11.43)
AT27C010-12JC FAQ
1.How can I place an order for AT27C010-12JC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27C010-12JC 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 AT27C010-12JC reliable?
The price and inventory of AT27C010-12JC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27C010-12JC is usually 5 days.
3.What payment methods are accepted for AT27C010-12JC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27C010-12JC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27C010-12JC?
AT27C010-12JC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27C010-12JC 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 AT27C010-12JC?
For technical support, including AT27C010-12JC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27C010-12JC requirements.
6.How does Aetrix verify that AT27C010-12JC is sourced from the original manufacturer or authorized distributors?
All AT27C010-12JC 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 AT27C010-12JC meets industry standards.
7.What is the process for return or replacement of AT27C010-12JC?
All AT27C010-12JC units undergo pre-shipment inspection (PSI). If there is an issue with AT27C010-12JC, 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 AT27C010-12JC part is unused and in its original packaging.
Return procedure for AT27C010-12JC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT27C010-12JC Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
