ABB 27C25632KX8ABB 27C25632KX8 Industrial 32K×8 EPROM Memory Spare Chip
Full Official OEM Name: ABB 27C25632KX8 32K×8-Bit UV-Erasable CMOS EPROM Non-Volatile Industrial Firmware Storage IC (DIP-28 Legacy Automation Memory Chip) Core Function This ABB-branded 256Kbit EPROM stores factory embedded firmware, motor control algorithms, process interlock logic, communication protocol stacks, calibration parameter tables and fault diagnostic lookup data for vintage ABB PLCs, DC variable speed drives, generator excitation controllers and early DCS CPU boards. Configured as 32768 × 8-bit byte storage, it retains data without external power via floating-gate charge storage. The quartz window enables UV light bulk erasure for site firmware re-programming during equipment overhaul and retrofit. It delivers stable 5V TTL-compatible read signals to host microprocessors and
Product Description
Full Official OEM Name: ABB 27C25632KX8 32K×8-Bit UV-Erasable CMOS EPROM Non-Volatile Industrial Firmware Storage IC (DIP-28 Legacy Automation Memory Chip) Core Function This ABB-branded 256Kbit EPROM stores factory embedded firmware, motor control algorithms, process interlock logic, communication protocol stacks, calibration parameter tables and fault diagnostic lookup data for vintage ABB PLCs, DC variable speed drives, generator excitation controllers and early DCS CPU boards. Configured as 32768 × 8-bit byte storage, it retains data without external power via floating-gate charge storage. The quartz window enables UV light bulk erasure for site firmware re-programming during equipment overhaul and retrofit. It delivers stable 5V TTL-compatible read signals to host microprocessors and
Technical Specifications
| Brand | ABB |
|---|---|
| Model | 27C25632KX8 |
| Category | Industrial Automation |
| rt | ABB 27C25632KX8 Industrial 32K×8 EPROM Memory Spare Chip |
| Full Official OEM Name | ABB 27C25632KX8 32K×8-Bit UV-Erasable CMOS EPROM Non-Volatile Industrial Firmware Storage IC (DIP-28 Legacy Automation Memory Chip) |
| Power Consumption Active read | 22 mA max; Standby idle: 90 μA |
| Total Component Length | 36.5 mm |
| Total Component Width | 14.0 mm |
| Housing Thickness | 4.3 mm |
| Insertion Pin Length | 6.2 mm |
| Floating-gate charge degradation | After 8–12 years continuous runtime, memory charge leaks; CPU throws memory parity error alarms and fails full startup sequence. |
| Corroded or bent DIP pins | Heavy cabinet vibration and corrosive industrial atmosphere create high-resistance electrical contact, leading to intermittent communication loss between memory and host processor. |
| Exceeded rated erase cycle wear | Repeated UV re-programming past the 100-cycle limit renders the chip unable to hold written firmware or complete erase cycles. |
| Generate PPT | ABB 27C25632KX8 product name and function |
| Connector | 28 pinout |
| Resolution | 8-Bit UV |
| Resolution 2 | 8-bit byte |
| Speed | 256Kb |
| Origin | Germany / Original |
| Condition | New Original Factory Sealed |
| Warranty | 12 Months |
| Shipping | Global Delivery via DHL/FedEx/UPS |