AT17LV512A-10JI

AT17LV512A-10JI is a low‑voltage, 512K × 8‑bit parallel EEPROM (non‑volatile memory) from Atmel (now Microchip). It stores 4,194,304 bits, organized as 524,288 bytes. It uses a parallel interface: 19 address lines (A0–A18), 8 data I/O lines (D0–D7), plus /CS (chip select), /OE (output enable) and /WE (write enable). The LV suffix indicates low‑voltage operation (typical 2.7–5.5 V). The -10 indicates a ~10 ns access time. Package code JI denotes the specific package/temperature rating.
Typical use: BIOS/firmware storage, microcontroller data memory, or any application needing non‑volatile, byte‑addressable memory with simple control pins.
Write/read basics: Writes occur when /CS and /WE are asserted with the target address on A0–A18 and data on D0–D7. Reads occur with /CS and /OE asserted. For exact pinout, timing, power, endurance, and decode details, refer to the AT17LV512A datasheet.

AT17LV512A-10JI is a 512 Kb, 8‑bit, low‑voltage (2.7–3.6 V) asynchronous memory (speed grade -10 ns). Equivalents from other vendors are 512K×8 LV SRAMs or 512K×8 SPI/config memories with the same I/O and timing. Cross‑references to check: Microchip 25AA512/25LC512; Renesas LV 512K×8 parts; ISSI IS61WV512/IS62WV; Alliance Memory AS6C512/AS5C512; Cypress/Spansion S25FL/S25F families (verify pinout and speed).

Here are concise features of the AT17LV512A-10JI:
- 4-Mbit SRAM: 512K × 8 organization
- Low-voltage operation: 2.7 V to 3.6 V
- Speed grade: -10 (10 ns access time)
- 32-pin package (JI code; e.g., SOIC/TSOP), with multiple packaging options
- 8-bit bidirectional data bus; tri-state I/O
- Fully asynchronous operation (no clock)
- Separate control pins: Chip Enable (CE), Output Enable (OE), Write Enable (WE)
- Addressing: 19 address lines (A0–A18)
- Commercial and Industrial temperature ranges
- Low active and standby power options
These summarize the key specs you typically need for design and selection.

- Pin count: 32 pins (32-pin package such as DIP/SOIC).
- Function: 512K × 8-bit low-voltage, asynchronous static RAM (SRAM). It has 19 address inputs (A0–A18), 8 data I/O lines (D0–D7), and control inputs CE, OE, WE (active-low). Power pins: Vcc and GND. The “-10” indicates 10 ns access time.

- Manufacturer: Atmel Corporation (now part of Microchip Technology).
- What kind of company: A semiconductor company that designs and manufactures memory ICs and microcontrollers for embedded systems (originally an independent U.S. IDM; acquired by Microchip in 2016).

AT17LV512A-10JI is a 512K×8-bit, low-voltage, asynchronous SRAM (10 ns). Common application areas include:
- General-purpose data storage for microcontrollers and DSPs
- Frame buffers/graphics buffers for small LCDs and displays
- I/O data buffering and scratchpad RAM in embedded systems
- Look-up tables and small caches in FPGAs/ASICs
- Networking/communication interface buffers
- Instrumentation, test equipment, and portable electronics memory
Note: Uses low-voltage operation suitable for cost-sensitive, power-conscious embedded designs.

An 8‑pin SOIC (Small Outline Integrated Circuit) package.