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TMP1827 Datasheet(PDF) 23 Page - Texas Instruments

Part # TMP1827
Description  TMP1827 Single-Wire, ±0.3°C Accurate Temperature Sensor With SHA-256-HMAC Authentication Engine, 2-kbit EEPROM
PDF  68 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMP1827 Datasheet(HTML) 23 Page - Texas Instruments

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VIL
VIH
VDD/VPUR
tSLOT
tRL
tMSW
tREC
Host Read-1
tRWAIT
VIL
VIH
VDD/VPUR
tSLOT
tMSW
tREC
Host Read-0
tRWAIT
tRL
Host drives SDQ
Device drives SDQ
High Impedance, external pullup
Figure 8-11. Host Read, Device Write
8.3.14 Bus Speed
The device supports both standard speed (8.33 kbps) and overdrive speed (90 kbps) data rates. All devices
are factory programmed to start in overdrive speed, to enable higher data throughput. If the host requires the
device to operate at standard speed, then it can easily switch the device by issuing a standard speed bus reset.
The seamless switch over allows host to leverage better data rates on new designs, while maintaining backward
compatibility for older design.
Additionally, the device also provides the flexibility to switch from standard to overdrive speed mode using
address phase commands of OVD SKIPADDR and OVD MATCHADDR.
• When host issues OVD SKIPADDR, then all devices on the bus switch from standard speed to overdrive
speed.
• When host issues OVD MATCHADDR, then the device whose 64-bit device address matches the address
that host sends, will switch from standard to overdrive speed.
8.3.15 NIST Traceability
The accuracy of temperature testing is verified with equipment that is calibrated by an accredited lab that
complies with ISO/IEC 17025 policies and procedures. Each device is tested and trimmed to conform to its
respective data sheet specification limits.
www.ti.com
TMP1827
SBOSA15 – SEPTEMBER 2022
Copyright © 2022 Texas Instruments Incorporated
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