Document
PSoC® 3: CY8C38 Family Datasheet
Programmable System-on-Chip (PSoC®)
General Description
PSoC® 3 is a true programmable embedded system-on-chip, integrating configurable analog and digital peripherals, memory, and a microcontroller on a single chip. The PSoC 3 architecture boosts performance through: 8051 core plus DMA controller and digital filter processor, at up to 67 MHz Ultra low power with industry's widest voltage range Programmable digital and analog peripherals enable custom functions Flexible routing of any analog or digital peripheral function to any pin PSoC devices employ a highly configurable system-on-chip architecture for embedded control design. They integrate configurable analog and digital circuits, controlled by an on-chip microcontroller. A single PSoC device can integrate as many as 100 digital and analog peripheral functions, reducing design time, board space, power consumption, and system cost while improving system quality.
Features
Operating characteristics Voltage range: 1.71 to 5.5 V, up to six power domains Temperature range (ambient) –40 to 85 °C[1] DC to 67-MHz operation Power modes • Active mode 1.2 mA at 6 MHz, and 12 mA at 48 MHz • 1-µA sleep mode • 200-nA hibernate mode with RAM retention Boost regulator from 0.5-V input up to 5-V output
Performance 8-bit 8051 CPU, 32 interrupt inputs 24-channel direct memory access (DMA) controller 24-bit 64-tap fixed-point digital filter processor (DFB)
Memories Up to 64 KB program flash, with cache and security features Up to 8 KB additional flash for error correcting code (ECC) Up to 8 KB RAM Up to 2 KB EEPROM
Digital peripherals Four 16-bit timer, counter, and PWM (TCPWM) blocks I2C, 1 Mbps bus speed USB 2.0 certified Full-Speed (FS) 12 Mbps peripheral interface (TID#40770053) using internal oscillator[2] Full CAN 2.0b, 16 Rx, 8 Tx buffers 16 to 24 universal digital blocks (UDB), programmable to create any number of functions: • 8-, 16-, 24-, and 32-bit timers, counters, and PWMs • I2C, UART, SPI, I2S, LIN 2.0 interfaces • Cyclic redundancy check (CRC) • Pseudo random sequence (PRS) generators • Quadrature decoders • Gate-level logic functions
Programmable clocking 3- to 62-MHz internal oscillator, 1% accuracy at 3 MHz 4- to 25-MHz external crystal oscillator Internal PLL clock generation up to 67 MHz Low-power internal oscillator at 1, 33, and 100 kHz 32.768-kHz external watch crystal oscillator 12 clock dividers routable to any peripheral or I/O
Analog peripherals Configurable 8- to 20-bit delta-sigma ADC Up to four 8-bit DACs Up to four comparators Up to four opamps Up to four programmable analog blocks, to create: • Programmable gain amplifier (PGA) • Transimpedance amplifier (TIA) • Mixer • Sample and hold circuit CapSense® support, up to 62 sensors 1.024 V ±0.1% internal voltage reference
Versatile I/O system 29 to 72 I/O pins – up to 62 general-purpose I/Os (GPIOs) Up to eight performance I/O (SIO) pins • 25 mA current sink • Programmable input threshold and output high voltages • Can act as a general-purpose comparator • Hot swap capability and overvoltage tolerance Two USBIO pins that can be used as GPIOs Route any digital or analog peripheral to any GPIO LCD direct drive from any GPIO, up to 46 × 16 segments CapSense support from any GPIO 1.2-V to 5.5-V interface voltages, up to four power domains
Programming and debug JTAG (4-wire), serial wire debug (SWD) (2-wire), and single wire viewer (SWV) interfaces Bootloader programming through I2C, SPI, UART, USB, and other interfaces
Package options: 48-pin SSOP, 48-pin QFN, 68-pin QFN, 100-pin TQFP, and 72-pin WLCSP
Development support with free PSoC Creator™ tool Schematic and firmware design support Over 100 PSoC Components™ integrate multiple ICs and system interfaces into one PSoC. Components are free embedded ICs represented by icons. Drag and drop component icons to design systems in PSoC Creator. Includes free Keil 8051 compiler Supports device programming and debugging
Notes 1. The maximum storage temperature is 150 °C in compliance with JEDEC Standard JESD22-A103, High Temperature Storage Life. 2. This feature on select devices only. See Ordering Information on page 123 for details.
Cypress Semiconductor Corporation • 198 Champion Court Document Number: 001-11729 Rev. AH
• San Jose, CA 95134-1709 • 408-943-2600
Revised December 3, 2019
PSoC® 3: CY8C38 Family Datasheet
More Information
Cypress provides a wealth of data at www.cypress.com to help you to select the right PSoC device for your design, and to help you to quickly and effectively integrate the device into your design. For a comprehensive list of resources, see the knowledge base article KBA86521, How to Design with PSoC 3,.