| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
6 pcs
|
6 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Access Time | |
| Lead Style | |
| Memory Format | |
| Memory Interface | |
| Memory Organization | |
| Memory Size | |
| Memory Type | |
| Mounting Type | |
| Operating Temperature | |
| SVHC Present | |
| Supplier Device Package | |
| Technology | |
| Voltage | |
| Write Cycle Time |
The AT29C257-70JC is a 256Kbit (32K x 8) in-system, 5-volt-only Flash programmable and erasable read-only memory (PEROM) from Microchip Technology. Manufactured using advanced nonvolatile CMOS technology, it offers access times as fast as 70 ns with low power dissipation. The device supports page program operations, allowing 64-bytes of data to be loaded and programmed simultaneously.
This memory IC is designed for simple in-system reprogrammability without requiring high input voltages. It features hardware and software data protection, and DATA polling for end-of-program detection. The AT29C257-70JC is pin-compatible with AT29C010A and AT29C512 for system upgrades.
Packaged in a 32-pin PLCC (Plastic Leaded Chip Carrier) with surface mount type, it is suitable for various embedded systems and microcontroller-based designs. The operating temperature range is 0°C to 70°C (TC). Typical write cycle time per word or page is 10 ms. The product is obsolete.
Key electrical specifications include a 4.5V to 5.5V supply voltage, 70 ns access time, and 10 ms write cycle time. Active current is typically 50 mA, with a CMOS standby current of less than 300 μA. Endurance is rated for over 10,000 cycles.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.28 | $1.28 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The AT29C257-70JC operates from a single 5V ± 10% supply.
The AT29C257-70JC is available in a 32-PLCC (J-Lead) package designed for surface mounting.
The operating temperature range for the AT29C257-70JC is 0°C to 70°C (TC).
The AT29C257-70JC is RoHS3 Compliant.
The AT29C257-70JC has a maximum access time of 70 ns.
The AT29C257-70JC has a memory size of 256Kbit.
The write cycle time for the AT29C257-70JC is 10 ms per word or page.