Specifications
| Attribute | Value |
| Supplier | Micron Technology Inc. |
| Package / Case | Tray |
| Part Status | Obsolete |
| Memory Type | Non-Volatile |
| Memory Format | FLASH |
| Technology | FLASH - NOR |
| Memory Size | 1Gb (128M x 8, 64M x 16) |
| Memory Interface | Parallel |
| Write Cycle Time - Word Page | 110ns |
| Access Time | 110 ns |
| Voltage - Supply | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Overview
Description
JS28F00AM29EWLA is a nonvolatile flash memory IC (a 28F00-family device) used to store firmware and data in embedded systems. It’s a parallel NOR flash, typically accessed via an 8-bit data bus with address lines and control signals, and erased/programmed in blocks or sectors.
Key points:
- Type: NOR flash for random-access reads and block erases
- Interface: parallel data bus; signals like CS/CE, OE, WE, plus address lines
- Voltage: usually 3.3V or 5V (check datasheet)
- Capacity/organization: device-specific (consult datasheet for exact size and block layout)
- Applications: boot firmware, BIOS, embedded code or data storage
- Operations: read, program (write), erase; status via polling or ready/busy signals
- Features: may include block protection and low-power modes
For an exact intro, refer to the vendor’s datasheet to confirm capacity, word/byte organization, timings, pinout, and electrical specs.
Key points:
- Type: NOR flash for random-access reads and block erases
- Interface: parallel data bus; signals like CS/CE, OE, WE, plus address lines
- Voltage: usually 3.3V or 5V (check datasheet)
- Capacity/organization: device-specific (consult datasheet for exact size and block layout)
- Applications: boot firmware, BIOS, embedded code or data storage
- Operations: read, program (write), erase; status via polling or ready/busy signals
- Features: may include block protection and low-power modes
For an exact intro, refer to the vendor’s datasheet to confirm capacity, word/byte organization, timings, pinout, and electrical specs.
Equivalent
JS28F00AM29EWLA is a NOR flash in the 28F00 family. Equivalents depend on voltage, data width, timing and package. I can’t fetch a current cross‑reference here. To find substitutes, get the JS28F00AM29EWLA datasheet and use distributor cross‑reference tools (DigiKey/Mouser) by filtering for 28F00, Vcc, x8/x16 and the same package. Likely matches include other 28F00‑series NOR flashes from Spansion/Cypress, Macronix, and Winbond—verify pinout and timing.
Features
JS28F00AM29EWLA is a parallel NOR flash memory device. Key features (typical for this family):
- Non-volatile program storage with an 8 Mbit (1 MB) class capacity; data bus x8.
- Parallel interface with CE, OE, WE control signals; random read capability.
- Erase/Program operations: block/sector erase and byte/word programming.
- On-chip protection: block protection and status/bit-programming protections.
- Ready/Busy signaling for operation completion.
- Power: designed for standard NOR voltages (commonly around 3.3V; check exact variant).
- Low-power standby modes.
- Temperature range: industrial grade (-40°C to 85°C) typical for EWLA variants.
- Packaging: standard surface-mount package (e.g., SOP/TSOP) typical for NOR Flash.
Note: exact capacity, voltage range, timing, and protection features can vary by lot/variant; for precise specs consult the official datasheet.
- Non-volatile program storage with an 8 Mbit (1 MB) class capacity; data bus x8.
- Parallel interface with CE, OE, WE control signals; random read capability.
- Erase/Program operations: block/sector erase and byte/word programming.
- On-chip protection: block protection and status/bit-programming protections.
- Ready/Busy signaling for operation completion.
- Power: designed for standard NOR voltages (commonly around 3.3V; check exact variant).
- Low-power standby modes.
- Temperature range: industrial grade (-40°C to 85°C) typical for EWLA variants.
- Packaging: standard surface-mount package (e.g., SOP/TSOP) typical for NOR Flash.
Note: exact capacity, voltage range, timing, and protection features can vary by lot/variant; for precise specs consult the official datasheet.
Pinout
JS28F00AM29EWLA is a NOR (non-volatile) flash memory IC. The pin count is package-dependent; common options for this type are 44-pin SOP/SOIC or 48-pin TSOP. Please provide the specific package to confirm the exact pin count from the datasheet.
Manufacturer
Manufacturer: Spansion Inc. (historically; today part of Cypress Semiconductor).
Spansion was a semiconductor company that designed and manufactured flash memory integrated circuits (NOR/NAND). It originated as a joint venture between AMD and Fujitsu and was later acquired by Cypress Semiconductor.
Spansion was a semiconductor company that designed and manufactured flash memory integrated circuits (NOR/NAND). It originated as a joint venture between AMD and Fujitsu and was later acquired by Cypress Semiconductor.
Application
JS28F00AM29EWLA is a non-volatile flash memory used for firmware and data storage in embedded systems. Common application areas include:
- Boot firmware storage and XIP for MCUs
- Firmware updates and parameter storage
- Automotive ECUs and infotainment
- Consumer electronics (set-top boxes, cameras, printers, media players)
- Networking/telecom equipment
- Industrial control and automation
- Medical devices requiring reliable firmware storage
- Boot firmware storage and XIP for MCUs
- Firmware updates and parameter storage
- Automotive ECUs and infotainment
- Consumer electronics (set-top boxes, cameras, printers, media players)
- Networking/telecom equipment
- Industrial control and automation
- Medical devices requiring reliable firmware storage
Package
TSOP (Thin Small Outline Package), 48‑pin TSOP-II. Verify with the datasheet for exact variant.
