DS2465P+

The DS2465P+ is a DeepCover secure authenticator with SHA-256 coprocessor and 1-wire master function in 6 pin TSOC package. DeepCover embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible. The DS2465 provides SHA-256 and memory functionality required by a host system to communicate with and operate 1-wire SHA-256 slave. In addition, it performs protocol conversion between I2C master and any attached 1-wire SHA-256 slaves. For 1-wire line driving, internal user adjustable timers relieve system host processor from generating time critical 1-wire waveforms supporting both standard and overdrive 1-wire communication speeds. The 1-wire line can be powered down under software control. Strong pull-up features support 1-wire power delivery to 1-wire devices such as EEPROMs. The DS2465 can be put in sleep mode when not in use. It is used in authentication of consumables & secure feature control.

• Supply voltage range from 2.97V to 3.63V and supply current of 750µA
• SHA-256 engine to operate symmetric key based bidirectional secure authentication model
• Two 32byte pages of user EEPROM with multiple programmable protection options
• 1-wire master port with selectable active or passive 1-wire pull-up
• Strong 1-wire pull-up provided by an internal low impedance signal path
• 1-wire port can be powered down under software control
• I2C operating (pull-up) voltage of 3.3V ±10%
• ±8KV ESD protection on IO to GND (JESD22-A114 HBM, typical)
• Power-on reset trip point of 1V
• Operating temperature range from -40°C to +85°C