General Description
With its unique array of configurable blocks, PSoC®3 is a true system level solution providing MCU, memory, analog, and digital peripheral functions in a single chip. The CY8C38 family offers a modern method of signal acquisition, signal processing, and control with high accuracy, high bandwidth, and high flexibility. Analog capability spans the range from thermocouples (near DC voltages) to ultrasonic signals. The CY8C38 family can handle dozens of data acquisition channels and analog inputs on every GPIO pin. The CY8C38 family is also a high performance configurable digital system with some part numbers including interfaces such as USB, multi-master I2C, and CAN. In addition to communication interfaces, the CY8C38 family has an easy to configure logic array, flexible routing to all I/O pins, and a high performance single cycle 8051 microprocessor core. Designers can easily create system level designs using a rich library of prebuilt components and boolean primitives using PSoC® Creator™, a hierarchical schematic design entry tool. The CY8C38 family provides unparalleled opportunities for analog and digital bill of materials integration while easily accommodating last minute design changes through simple firmware updates. Feat
Features
■ Single cycle 8051 CPU
□ DC to 67 MHz operation
□ Multiply and divide instructions
□ Flash program memory, up to 64 KB, 100,000 write cycles, 20 years retention, and multiple security features
□ Up to 8-KB flash error correcting code (ECC) or configuration storage
□ Up to 8 KB SRAM
□ Up to 2 KB electrically erasable programmable read-only memory (EEPROM), 1 M cycles, and 20 years retention
□ 24-channel direct memory access (DMA) with multilayer AHB[1] bus access
• Programmable chained descriptors and priorities
• High bandwidth 32-bit transfer support
■ Low voltage, ultra low-power
□ Wide operating voltage range: 0.5 V to 5.5 V
□ High efficiency boost regulator from 0.5-V input through 1.8-V to 5.0-V output
□ 0.8 mA at 3 MHz, 1.2 mA at 6 MHz, and 6.6 mA at 48 MHz
□ Low-power modes including:
• 1-µA sleep mode with real time clock and low-voltage detect (LVD) interrupt
• 200-nA hibernate mode with RAM retention
■ Versatile I/O system
□ 28 to 72 I/O (62 GPIOs, eight special input/outputs (SIO), two USBIOs[2])
□ Any GPIO to any digital or analog peripheral routability
□ LCD direct drive from any GPIO, up to 46 × 16 segments[2]
□ CapSense® support from any GPIO[3]
□ 1.2-V to 5.5-V I/O interface voltages, up to four domains
□ Maskable, independent IRQ on any pin or port
□ Schmitt-trigger transistor-transistor logic (TTL) inputs
□ All GPIO configurable as open drain high/low, pull-up/pull-down, High Z, or strong output
□ Configurable GPIO pin state at power-on reset (POR)
□ 25 mA sink on SIO
■ Digital peripherals
□ 20 to 24 programmable logic device (PLD) based universal digital blocks (UDB)
□ Full CAN 2.0b 16 Rx, 8 Tx buffers[2]
□ Full-speed (FS) USB 2.0 12 Mbps using internal oscillator[2]
□ Up to four 16-bit configurable timer, counter, and PWM blocks
□ 67 MHz, 24-bit fixed point digital filter block (DFB) to implement FIR and IIR filters
□ Library of standard peripherals
• 8-, 16-, 24-, and 32-bit timers, counters, and PWMs
• Serial peripheral interface (SPI), universal asynchronous transmitter receiver (UART), and I2C
• Many others available in catalog
□ Library of advanced peripherals
• Cyclic redundancy check (CRC)
• Pseudo random sequence (PRS) generator
• Local interconnect network (LIN) bus 2.0
• Quadrature decoder
■ Analog peripherals (1.71 V ≤ VDDA ≤ 5.5 V)
□ 1.024 V ± 0.1% internal voltage reference across –40 °C to +85 °C (14 ppm/°C)
□ Configurable delta-sigma ADC with 8- to 20-bit resolution
• Sample rates up to 192 ksps
• Programmable gain stage: ×0.25 to ×16
• 12-bit mode, 192 ksps, 66-dB signal to noise and distortion ratio (SINAD), ±1-bit INL/DNL
• 16-bit mode, 48 ksps, 84-dB SINAD, ±2-bit INL, ±1-bit DNL
□ Up to four 8-bit, 8-Msps IDACs or 1-Msps VDACs
□ Four comparators with 95-ns response time
□ Up to four uncommitted opamps with 25-mA drive capability
□ Up to four configurable multifunction analog blocks. Example configurations are programmable gain amplifier (PGA), transimpedance amplifier (TIA), mixer, and sample and hold
□ CapSense support
■ Programming, debug, and trace
□ JTAG (4-wire), serial wire debug (SWD) (2-wire), and single wire viewer (SWV) interfaces
□ Eight address and one data breakpoint
□ 4-KB instruction trace buffer
□ Bootloader programming supportable through I2C, SPI, UART, USB, and other interfaces
■ Precision, programmable clocking
□ 3- to 62-MHz internal oscillator over full temperature and voltage range
□ 4- to 25-MHz crystal oscillator for crystal PPM accuracy
□ Internal PLL clock generation up to 67 MHz
□ 32.768-kHz watch crystal oscillator
□ Low-power internal oscillator at 1, 33, and 100 kHz
■ Temperature and packaging
□ –40°C to +85 °C degrees industrial temperature
□ 48-pin SSOP, 48-pin QFN, 68-pin QFN, and 100-pin TQFP package options
