Rev. 1.00
8
September 11, 2018
Rev. 1.00
9
September 11, 2018
HT45F4050
A/D NFC Flash MCU
HT45F4050
A/D NFC Flash MCU
Block Diagram
HIRC
4/8/12MHz
LIRC
32kHz
MU
X
HT8 MCU Core
Reset
Circuit
Interrupt
Controller
INT0~INT1
ROM
8K × 16
EEPROM
64 × 8
Watchdog
Timer
RAM
256 × 8
Stack
8-level
LVD/LVR
SYSCLK
Bu
s
Digital Peripherals
Time Bases
Pin-Shared
With Port A
I/O
Pin-Shared
Function
Port A
Driver
Port B
Driver
Port C
Driver
Port D
Driver
Port E
Driver
PA0~PA7
PB0~PB7
PC0~PC7
PD0~PD3
PE0~PE4
Port F
Driver
PF0~PF7
VDD
AVDD
V
DD
AV
DD
VSS
AVSS
V
SS
AV
SS
RES
Pin-Shared
With Port B
Clock System
HXT
LXT
XT2
XT1
Pin-Shared
With Port F
OSC2
OSC1
Pin-Shared
With Port B
MUX
: Pin-Shared Node
LA
LB
NFC State Machine
NFC Memory
ASK 100%
Demodulator
Limiter
Modulator
Clock Recovery
Field
Detector
Regulator
V
DD
NFC Peripheral
VSSN
Pin-Shared
With Port C/D/F
AN0~
AN12
VREF
Analog Peripherals
12-bit
ADC
AV
DD
AV
DD
/2
AV
DD
/4
V
R
V
R
/2
V
R
/4
PGA
AV
DD
VREFI
Pin-Shared
With Port C
+
-
C+
C-
CX
Analog to Digital Converter
Pin-Shared With Port B
Comparator
Pin-Shared With Port F
CMP
VDDIO
V
DDIO
V
BGREF
SCOM
Timers
UART
SIM
: SIM including SPI & I
2
C