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CY8C20x46, CY8C20x66
Document Number: 001-12696 Rev. *C
Page 2 of 34
Block Diagram
CAPSENSE
SYSTEM
2K SRAM
Interrupt
Controller
Sleep and
Watchdog
Multiple Clock Sources
Internal Low Speed Oscillator (ILO)
6/12/24 MHz Internal Main Oscillator
(IMO)
PSoC CORE
CPU Core (M8C)
Supervisory ROM (SROM)
16K/32K Flash
Nonvolatile Memory
SYSTEM RESOURCES
SYSTEM BUS
Analog
Reference
SYSTEM BUS
Port 3
Port 2
Port 1
Port 0
CapSense
Module
Global Analog Interconnect
1.8/2.5/3V
LDO
Analog
Mux
Two
Comparators
I2C
Slave
SPI
Master/
Slave
POR
and
LVD
USB
System
Resets
Internal
Voltage
References
Three 16-Bit
Programmable
Timers
PWRSYS
(Regulator)
Port 4
Digital
Clocks
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