ICL7139CPL 查看數據表（PDF） - Intersil
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ICL7139CPL Datasheet PDF : 13 Pages
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Functional Block Diagram
ICL7139, ICL7149
SWITCHES
CRYSTAL
OSC
CONTROL LOGIC
INCLUDING
AUTORANGING LOGIC
BEEPER
DRIVER
DIGITAL COMMON
COUNTERS
DISPLAY
DRIVER
AND
LATCHES
PIEZO
ELECTRIC
BEEPER
DISPLAY
POWER
ANALOG SECTION
SUPPLY ANALOG SWITCHES, INTEGRATION
SECTION
AND COMPARATOR
V+ V- COM
EXTERNAL
RESISTORS
AND CAPACITORS
3-34
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