PSoC™ Mixed-Signal Array
Final Data Sheet
CY8C24794
Features
■ Powerful Harvard Architecture Processor
■ M8C Processor Speeds to 24 MHz
■ Two 8x8 Multiply, 32-Bit Accumulate
■ Low Power at High Speed
■ Full-Speed USB (12 Mbps)
■ Precision, Programmable Clocking
■ Internal ±4% 24/48 MHz Oscillator
■ Internal Oscillator for Watchdog and Sleep
■ Four Uni-Directional Endpoints
■ One Bi-Directional Control Endpoint
■ USB 2.0 Compliant
■ Dedicated 256 Byte Buffer
■ No External Crystal Required
■ .25% Accuracy for USB with no External
Components
■ 3.0 to 5.25V Operating Voltage
■ Industrial Temperature Range: -40°C to +85°C
■ USB Temperature Range: -10°C to +85°C
■ Additional System Resources
■ I2C™ Slave, Master, and Multi-Master to
■ Flexible On-Chip Memory
■ Advanced Peripherals (PSoC Blocks)
■ 6 Rail-to-Rail Analog PSoC Blocks Provide:
■ 16K Flash Program Storage 50,000 Erase/
Write Cycles
■ 1K SRAM Data Storage
■ In-System Serial Programming (ISSP™)
■ Partial Flash Updates
■ Flexible Protection Modes
■ EEPROM Emulation in Flash
400 kHz
■ Watchdog and Sleep Timers
■ User-Configurable Low Voltage Detection
■ Integrated Supervisory Circuit
■ On-Chip Precision Voltage Reference
- Up to 14-Bit ADCs
- Up to 9-Bit DACs
- Programmable Gain Amplifiers
- Programmable Filters and Comparators
■ 4 Digital PSoC Blocks Provide:
■ Complete Development Tools
■ Free Development Software
■ Programmable Pin Configurations
(PSoC™ Designer)
- 8- to 32-Bit Timers, Counters, and PWMs
- CRC and PRS Modules
- Full-Duplex UART
- Multiple SPI™ Masters or Slaves
- Connectable to all GPIO Pins
■ 25 mA Sink on all GPIO
■ Pull up, Pull down, High Z, Strong, or Open
Drain Drive Modes on all GPIO
■ Up to 48 Analog Inputs on GPIO
■ Two 33 mA Analog Outputs on GPIO
■ Configurable Interrupt on all GPIO
■ Full-Featured, In-Circuit Emulator and
Programmer
■ Full Speed Emulation
■ Complex Breakpoint Structure
■ 128K Bytes Trace Memory
■ Complex Peripherals by Combining Blocks
■ Capacitive Sensing Application Capability
Analog
Drivers
PSoC™ Functional Overview
Port5 Port4 Port3 Port2 Port1 Port0
Port7
The PSoC™ family consists of many Mixed-Signal Array with
On-Chip Controller devices. All PSoC family devices are
designed to replace traditional MCUs, system ICs, and the
numerous discrete components that surround them. The PSoC
CY8C24794 device is a unique member of the PSoC family
because it includes a full-featured, full-speed (12 Mbps) USB
port. Configurable analog, digital, and interconnect circuitry
enable a high level of integration in a host of industrial, con-
sumer, and communication applications.
Global Digital Interconnect
Global Analog Interconnect
PSoC CORE
SRAM
1K
SROM
Flash 16K
Sleep and
Watchdog
CPUCore(M8C)
Interrupt
Controller
This architecture allows the user to create customized periph-
eral configurations that match the requirements of each individ-
ual application. Additionally, a fast CPU, Flash program
memory, SRAM data memory, and configurable IO are included
in a range of convenient pinouts and packages.
ClockSources
(Includes IMOandILO)
DIGITAL SYSTEM
ANALOG SYSTEM
Analog
Ref .
The PSoC architecture, as illustrated on the left, is comprised of
four main areas: PSoC Core, Digital System, Analog System,
and System Resources including a full-speed USB port. Config-
urable global busing allows all the device resources to be com-
bined into a complete custom system. The PSoC CY8C24794
device can have up to seven IO ports that connect to the global
digital and analog interconnects, providing access to 4 digital
blocks and 6 analog blocks.
Digital
Block
Array
Analog
Block
Array
Internal
Voltage USB
Ref.
Analog
Input
Muxing
Digital
Clocks MACs
2
Decimator
Type 2
POR and LVD
System Resets
I2C
SYSTEM RESOURCES
April 14, 2005
© Cypress Semiconductor Corp. 2004-2005 — Document No. 38-12018 Rev. *F
1