ds28e01完全数据手册_DS28E01-100
System Intellectual Property Protection
Features
♦
1024 Bits of EEPROM Memory Partitioned Into
Four Pages of 256 Bits
♦
On-Chip 512-Bit SHA-1 Engine to Compute 160-
Bit Message Authentication Codes (MACs) and to
Generate Secrets
♦
Write Access Requires Knowledge of the Secret
and the Capability of Computing and Transmitting
a 160-Bit MAC as Authorization
♦
User-Programmable Page Write Protection for
Page 0, Page 3, or All Four Pages Together
♦
User-Programmable OTP EPROM Emulation Mode
for Page 1 (“Write to 0”)
♦
Communicates to Host with a Single Digital
Signal at 15.3kbps or 125kbps Using 1-Wire
Protocol
♦
Switchpoint Hysteresis and Filtering to Optimize
Performance in the Presence of Noise
♦
Reads and Writes Over 2.8V to 5.25V Voltage
Range from -40°C to +85°C
♦
6-Lead TSOC and TDFN or 2-Lead SFN Packages
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