AT29C010A12PC Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The AT29C010A12PC is a 1 Mbit (128K × 8-bit) 5 V flash EEPROM by Microchip with 120 ns access time and sector-erase architecture in a 32-pin DIP package. Key specs: 1 Mbit capacity, 120 ns read cycle, 5 V supply, 10,000 erase/write cycles. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 32
- Lifecycle
- ACTIVE
- Datasheet
- AT29C010A12PC Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1 Mbit (128K × 8) flash EEPROM with 120 ns access time for fast parallel bus read in embedded code-storage applications
- Sector-erase architecture allows 128-byte sectors to be erased and rewritten independently, protecting unchanged data and extending device lifetime to 10,000 cycles
- 32-pin DIP package with 5 V single-supply operation enables direct drop-in replacement for legacy UV-erasable EPROM designs without power rail changes
Applications
The AT29C010A12PC is used for storing firmware, look-up tables, and boot code in industrial controllers, legacy embedded systems, and retro-computing platforms where parallel flash EEPROM is required. Its 120 ns access time supports 8 MHz direct bus interfaces on microprocessors without wait states, simplifying memory timing design. The 32-pin DIP package allows through-hole mounting in prototype boards and EPROM sockets, making it a convenient replacement for 27C010 UV-EPROM devices in legacy hardware maintenance.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the storage capacity and access time of the AT29C010A12PC?
The AT29C010A12PC provides 1 Mbit of flash EEPROM storage organized as 128K × 8 bits, with a maximum read access time of 120 ns. This access time allows direct bus connection to 8 MHz processors without requiring wait-state logic, making it compatible with many Z80, 8051, and 68HC11-class microprocessors in embedded control applications.
How does the sector-erase architecture of the AT29C010A12PC differ from a full-chip erase approach?
The AT29C010A12PC divides its 128 KB address space into 1,024 sectors of 128 bytes each, allowing individual sectors to be erased and rewritten without affecting the other 127 sectors. This granular erase reduces write latency—erasing 128 bytes takes roughly 10 ms versus a full 256 ms chip erase—and distributes wear across sectors, extending the practical write lifetime within the rated 10,000 erase/write cycle endurance.
Can the AT29C010A12PC directly replace a 27C010 UV-EPROM in existing hardware?
Yes, the AT29C010A12PC is pin-compatible with the 27C010 UV-EPROM in a 32-pin DIP package and operates from the same 5 V supply, making it a direct socket-compatible drop-in replacement. Unlike the UV-EPROM, the AT29C010A12PC can be electrically erased in-circuit without UV light or an external eraser, reducing maintenance overhead for field firmware updates on legacy industrial equipment.
What write endurance and data retention does the AT29C010A12PC provide for long-life embedded deployments?
Microchip specifies 10,000 erase/write cycles per sector for the AT29C010A12PC and a data retention period of at least 10 years at 85°C junction temperature, which typically exceeds 100 years at room temperature. For an application that updates firmware 4 times per year, the 10,000-cycle endurance provides over 2,500 years of useful life, far exceeding typical equipment service lifetimes of 10–20 years.
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