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| Part Number | MAX66040K-000AA+ | MAX66140K-000AA+ | MAX66040E-000AA+ |
|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Obsolete | Obsolete | Obsolete |
| Style | Card | Key FOB | Card |
| Technology | Passive | Passive | Passive |
| Frequency | 13.56MHz | 13.56MHz | 13.56MHz |
| Memory Type | Read/Write | Read/Write | Read/Write |
| Writable Memory | 1kB (User) | 1kB (User) | 1kB (User) |
| Standards | ISO 14443 | ISO 15693, ISO 18000-3 | ISO 14443 |
| Operating Temperature | -25°C ~ 50°C | -25°C ~ 50°C | -25°C ~ 50°C |
| Size / Dimension | 2.126" L x 1.102" W (54.00mm x 28.00mm) | 3.370" L x 2.125" W (85.60mm x 53.98mm) | 3.370" L x 2.125" W (85.60mm x 53.98mm) |
