Selection Table; Block Diagram - Holtek BS83A02L Manual

Selection Table

Most features are common to all devices and the main features distinguishing them are Oscillator
Types, Memory capacity, I/O count, Touch key count, Time Base, Timers, Interface, Stack and
Package types. The following table summarises the main features of each device.
Device Oscillator Types
8MHz HIRC
BS83A02L
2kHz LIRC
2/4/8MHz HIRC
BS83B04L
2kHz LIRC
Device Time Base Timer Module
BS83A02L 1
BS83B04L 1 10-bit CTM×1
Note: As devices exist in more than one package format, the table reflects the situation for the package with the
most pins.

Block Diagram

BS83A02L
Reset
Circuit
Interrupt
INT
Controller
Pin- Shared
With Port A
Time Base
V
VDD
DD
V
VSS
SS
: Bus Entry
: Pin-Shared Node
BS83B04L
Reset
ROM
Circuit
2K×16
Interrupt
EEPROM
INT
Controller
32×8
Pin-Shared
Watchdog
with Port A
Timer
Time Base
LIRC
2kHz
HIRC
V
VDD
DD
2/4/8MHz
V
VSS
SS
: Pin-Shared Node : Bus Entry
Rev. 1.10
Ultra-Low Power Touch Key Flash MCU
Program Memory Data Memory
1K×14 64×8
2K×16 128×8
Timer/Event Counter
— 8-bit Timer×1
—
ROM RAM
1K×14 64×8
Stack
LVR
2-level
Watchdog
Timer
HT8 MCU Core
LIRC
2kHz
MUX
HIRC
8MHz
Clock System
RAM
128×8
Stack
4-Level
LVR
HT8 MCU Core
MUX
Clock System
8
BS83A02L/BS83B04L
True EEPROM I/O
— 4
32×8 8
Touch Key Interface Stack
2 — 2
4 I 2 C×1 4
Timer
Pin-Shared
I/O
Function
Digital Peripherals
Touch Key Module 0
C to F
Circuit
Pin-Shared
with Port A
Touch Key Function
2
I C
Pin-Shared
Timer
Function
I/O
Digital Peripherals
Touch Key Module 0
C to F
Circuit
Pin-Shared
Touch Key Function
with Port A
External Interrupt
1
1
Packages
6DFN/SOT23;
8SOP
8SOP;
10DFN/MSOP
Port A
PA0~PA3
Driver
KEY1~KEY2
Port A
PA0~PA7
Driver
KEY1~KEY4
March 02, 2020