DS1922L Maxim, DS1922L Datasheet - Page 14

• Manufacturer Part Number: DS1922L
• Description: The DS1922L/T temperature logger iButtons® are rugged, self-sufficient systems that measure temperature and record the result in a protected memory section
• Manufacturer: Maxim

Temperature Logger iButton with 8KB
Data-Log Memory
Figure 1. Block Diagram
14
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3V LITHIUM
THERMAL
OSCILLATOR
SENSE
1-Wire PORT
32.768kHz
IO
ADC
DS1922L
DS1922T
CONTROL REGISTERS,
AND COUNTERS
CONTROL
TIMEKEEPING,
LOGIC
INTERNAL
FUNCTION
CONTROL
ROM
CALIBRATION MEMORY
DATA-LOG MEMORY
GENERAL-PURPOSE
REGISTER PAGES
(512 BYTES)
(64 BYTES)
(64 BYTES)
SRAM
LASERED
8KB
64-BIT
ROM
FUNCTION
CONTROL
MEMORY
PARASITE-POWERED
CIRCUITRY
SCRATCHPAD
256-BIT