BA45F5740/BA45F5740-2
Smoke Detector Flash MCU with Calendar
Table of Contents
Features.................................................................................................................7
CPU Features ...............................................................................................................................7
Peripheral Features.......................................................................................................................7
Calendar Features ........................................................................................................................8
General Description..............................................................................................8
Selection Table......................................................................................................9
Block Diagram.......................................................................................................9
Pin Assignment...................................................................................................10
Pin Description ................................................................................................... 11
Absolute Maximum Ratings...............................................................................14
D.C. Characteristics............................................................................................14
Operating Voltage Characteristics...............................................................................................14
Operating Current Characteristics...............................................................................................14
Standby Current Characteristics .................................................................................................15
A.C. Characteristics............................................................................................15
High Speed Internal Oscillator Frequency Accuracy...................................................................15
Low Speed Internal Oscillator Characteristics – LIRC ................................................................16
Operating Frequency Characteristic Curves...............................................................................16
System Start Up Time Characteristics ........................................................................................16
Input/Output Characteristics .............................................................................17
Memory Characteristics.....................................................................................18
LVD & LVR Electrical Characteristics ...............................................................18
A/D Converter Electrical Characteristics..........................................................19
Internal Reference Voltage Characteristics......................................................19
Sink Current Generator Electrical Characteristics..........................................20
Operational Amplifier Electrical Characteristics .............................................21
For Smoke Detector AFE ............................................................................................................21
Calendar Electrical Characteristics ..................................................................23
D.C. Characteristics ....................................................................................................................23
A.C. Characteristics ....................................................................................................................23
Power-on Reset Characteristics........................................................................24
System Architecture...........................................................................................25
Clocking and Pipelining...............................................................................................................25
Program Counter.........................................................................................................................26
Stack ...........................................................................................................................................26
Arithmetic and Logic Unit – ALU .................................................................................................27
Rev. 1.30
2
September 16, 2021
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