Holtek BS66F340C Manual page 9

BS66F340C/BS66F350C/BS66F360C
Touch A/D Flash MCU
Block Diagram
Reset 16K × 16
Circuit
EEPROM
Interrupt
INT0~INT1
Controller
Watchdog
Pin-Shared
With Port A & B
Time Bases
Pin-Shared
8/12/16MHz
With Port A
XT1
XT2
OSC1
OSC2
VDD V
DD Pin-Shared
With Port E
VSS V
SS
V
DD
VREF
V
BG
AN0~AN7
Pin-Shared
With Port B
Analog Peripherals
: Bus Entry : Pin-Shared Node
Note: The figure illustrates the Block Diagram of the device with maximum features, the functional differences
between the devices are provided in the Selection Table.
Pin Assignment
PB2/PTP/PTPI/TX/AN2
PB7/INT1/AN7/KEY4
PB6/PTCK/AN6/KEY3
PB5/STCK/AN5/KEY2
PB4/PTPB/PTPI/AN4/KEY1
PB1/SCK/SCL/AN1
PB0/VREF/SDI/SDA/AN0
PE5/CTP1B/OSC2
Rev. 1.11
IAP
ROM RAM
1024 × 8
Stack
128 × 8 12-Level
LVR/LVD
Timer
HT8 MCU Core
SYSCLK
LIRC
32kHz
HIRC
LXT
HXT
Clock System
12-bit
ADC
2
: SIM including SPI & I C
PB3/RX/AN3 1 28
2 27
3 26
4 25
5 24
6 23
7 22
8 21
VDD 9 20
10 19
PA4/SDO/XT2
PA3/SCS/XT1 11 18
VSS 12 17
PE4/OSC1 13 16
14 15
BS66F340C/BS66V340C
28 SSOP-A
9
Timers
SIM
Pin-Shared
Function
UART
I/O
Digital Peripherals
Touch Key Module 6
Touch Key Module 1
Touch Key Module 0
C to F
Circuit
Touch Key Function
PA7/CTP1
PA6/CTCK0/INT0
PC0/KEY5
PC1/KEY6
PC2/KEY7
PC3/KEY8
PE0/KEY9
PE1/KEY10
PE2/STP/STPI/KEY11
PE3/STPB/STPI/KEY12
PA5/CTP0B/TX/SDI/SDA
PA1/CTP0/RX/SCK/SCL
PA2/SCS/CTCK1/ICPCK/OCDSCK
PA0/SDO/ICPDA/OCDSDA
Port A Driver PA0~PA7
Port B Driver PB0~PB7
Port C Driver PC0~PC7
Port D Driver PD0~PD7
Port E Driver PE0~PE7
Port F Driver PF0~PF5
Pin-Shared with
Port B & C& D & E & F
KEY1~
KEY28
November 09, 2023