November 9, 2006
© Cypress Semiconductor 2004-2006 — Document No. 38-12023 Rev. *D
1
PSoC® Mixed-Signal Array
Final Data Sheet
Automotive:
CY8C27243, CY8C27443, and CY8C27643
PSoC® Functional Overview
The PSoC® family consists of many Mixed-Signal Array with
On-Chip Controller devices. These devices are designed to
replace multiple traditional MCU-based system components
with one, low cost single-chip programmable device. PSoC
devices include configurable blocks of analog and digital logic,
as well as programmable interconnects. This architecture
allows the user to create customized peripheral configurations
that match the requirements of each individual application.
Additionally, a fast CPU, Flash program memory, SRAM data
memory, and configurable IO are included in a range of conve-
nient pinouts and packages.
The PSoC architecture, as illustrated on the left, is comprised of
four main areas: PSoC Core, Digital System, Analog System,
and System Resources. Configurable global busing allows all
device resources to be combined into a complete custom sys-
tem. The CY8C27x43 automotive family can have up to five IO
ports that connect to the global digital and analog interconnects,
providing access to 8 digital blocks and 12 analog blocks.
The PSoC Core
The PSoC Core is a powerful engine that supports a rich fea-
ture set. The core includes a CPU, memory, clocks, and config-
urable GPIO (General Purpose IO).
The M8C CPU core is a powerful processor with speeds up to
12 MHz, providing a two MIPS 8-bit Harvard architecture micro-
Features
■ Powerful Harvard Architecture Processor
❐ M8C Processor Speeds to 12 MHz
❐ 8x8 Multiply, 32-Bit Accumulate
❐ Low Power at High Speed
❐ 4.75V to 5.25V Operating Voltage
❐ Extended Temp. Range: -40°C to +105°C
■ Advanced Peripherals (PSoC Blocks)
❐ 12 Rail-to-Rail Analog PSoC Blocks Provide:
- Up to 14-Bit ADCs
- Up to 9-Bit DACs
- Programmable Gain Amplifiers
- Programmable Filters and Comparators
❐ 8 Digital PSoC Blocks Provide:
- 8- to 32-Bit Timers, Counters, and PWMs
- CRC and PRS Modules
- Up to 2 Full-Duplex UARTs
- Multiple SPI
™ Masters or Slaves
- Connectable to all GPIO Pins
❐ Complex Peripherals by Combining Blocks
■ Precision, Programmable Clocking
❐ Internal ±4% 24 MHz Oscillator
❐ 24 MHz with Optional 32.768 kHz Crystal
❐ Optional External Oscillator, up to 24 MHz
❐ Internal Oscillator for Watchdog and Sleep
■ Flexible On-Chip Memory
❐ 16K Bytes Flash Program Storage
❐ 256 Bytes SRAM Data Storage
❐ In-System Serial Programming (ISSP)
❐ Partial Flash Updates
❐ Flexible Protection Modes
■ Programmable Pin Configurations
❐ 25 mA Sink on All GPIO
❐ Pull Up, Pull Down, High Z, Strong, or Open
Drain Drive Modes on all GPIO
❐ Up to 12 Analog Inputs on GPIO
❐ Four 30 mA Analog Outputs on GPIO
❐ Configurable Interrupt on All GPIO
■ Additional System Resources
❐ I2C™ Slave, Master, and Multi-Master to
400 kHz
❐ Watchdog and Sleep Timers
❐ User-Configurable Low Voltage Detection
❐ Integrated Supervisory Circuit
❐ On-Chip Precision Voltage Reference
■ Complete Development Tools
❐ Free Development Software
(PSoC™ Designer)
❐ Full-Featured, In-Circuit Emulator and
Programmer
❐ Full Speed Emulation
❐ Complex Breakpoint Structure
❐ 128K Bytes Trace Memory
DIGITAL SYSTEM
SRAM
256 Bytes
Interrupt
Controller
Sleep and
Watchdog
Multiple Clock Sources
(Includes IMO, ILO, PLL, and ECO)
Global Digital Interconnect
Global Analog Interconnect
PSoC
CORE
CPUCore(M 8C)
SROM
Flash 16K
Digital
Block Array
Multiply
Accum.
Internal
Voltage
Ref.
Digital
Clocks
POR and LVD
System Resets
Decimator
SYSTEM RESOURCES
ANALOG SYSTEM
Analog
Ref.
Analog
Input
Muxing
I C
2
Port 4
Port 3
Port 2
Port 1
Port 0
Analog
Drivers
System Bus
Analog
Block
Array
Port 5
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