DS28E25+ vs DS28E25Q+U 对比
详细并排对比 DS28E25+ 出自 Analog Devices 和 DS28E25Q+U 出自 Analog Devices。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
Analog Devices
DS28E25+ - SHA-256 1-Wire Authenticator, 4Kb EEPROM, TO-92 | Analog Devices
DS28E25+ ✓ 量产中
规格对比
| 参数 | DS28E25+ | DS28E25Q+U |
|---|---|---|
| 品牌 | Analog Devices | Analog Devices |
| 分类 | Logic ICs | Memory ICs |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $2.10 | $1.42 |
| Product Type | Secure Authenticator / SHA-256 Co-Processor | DeepCover Secure Authenticator (SHA-256) |
| Family | DeepCover Secure Authenticator | — |
| 接口 | 1-Wire (single-contact, half-duplex) | — |
| 1-Wire Speeds | Standard and Overdrive | — |
| Cryptographic Algorithm | SHA-256 (FIPS 180-4) | — |
| User EEPROM | 4 Kbit (512 bytes, 32 pages x 16 bytes) | 4 Kbit (512 bytes, 16 pages of 32 bytes) |
| ROM ID | 64-bit factory-lasered unique registration number | — |
| Operating Voltage (VPUP) | 2.97 V to 3.63 V | — |
| Parasite Power | Yes (powered from 1-Wire data line) | — |
| 封装 | TO-92-2 (TO-226AC), 3 pins | 6-TDFN (3x3 mm) |
| 安装类型 | Through-Hole | Surface Mount |
| 工作温度 | -40 C to +85 C | — |
| EEPROM Endurance | [DATA_NEEDED: write cycles per page] | — |
| EEPROM Data Retention | [DATA_NEEDED: retention years] | — |
| RoHS 状态 | Compliant | Compliant |
| Security Features | Hardware SHA-256, on-chip secret storage, active die shield | DeepCover active die shield, on-chip key generation, non-readable secret storage |
| Authentication Algorithm | — | SHA-256 (FIPS 180-3 compliant) / HMAC-SHA256 |
| Bus Interface | — | Maxim 1-Wire (single data line, optional parasitic power) |
| Operating Voltage | — | 2.97 V to 3.63 V |
| Unique ROM ID | — | 64-bit factory-programmed |
| 引脚数量 | — | 6 |
| GPIO / Control Pin | — | Yes, programmable, authentication-gated |
| Increment-Only Counter | — | Yes (for monotonic usage tracking) |
| 工作温度范围 | — | -40 C to +85 C (industrial) |
| Parasitic Power Support | — | Yes (1-Wire) |
| Compatible Host Bridge | — | DS2465, DS2480B, DS2482S/DS2483 |
| MSL 等级 | — | 1 (per JEDEC J-STD-020) |