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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 core

□ DC to 67 MHz operation[1]

□ Multiply and divide instructions

□ Flash program memory, up to 64 KB, 100,000 write cycles, 20 years retention, multiple security features

□ Up to 8 KB Flash ECC or configuration storage

□ Up to 8 KB SRAM memory

□ Up to 2 KB EEPROM memory, 1M cycles, 20 years retention

□ 24 channel DMA with multilayer AHB bus access

? Programmable chained descriptors and priorities

? High bandwidth 32-bit transfer support

■ Low voltage, ultra low power

□ Wide operating voltage range: 0.5V to 5.5V

□ High efficiency boost regulator from 0.5V input to 1.8V-5.0V output

□ 330 μA at 1 MHz, 1.2 mA at 6 MHz, 5.6 mA at 40 MHz

□ Low power modes including:

? 200 nA hibernate mode with RAM retention and LVD

? 1 μA sleep mode with real time clock and low voltage reset

■ Versatile I/O system

□ 28 to 72 I/O (62 GPIO, 8 SIO, 2 USBIO[1])

□ Any GPIO to any digital or analog peripheral routability

□ LCD direct drive from any GPIO, up to 46x16 segments[1]

□ 1.2V to 5.5V I/O interface voltages, up to 4 domains

□ Maskable, independent IRQ on any pin or port

□ Schmitt trigger TTL inputs

□ All GPIO configurable as open drain high/low, pull up/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 PLD based Universal Digital Blocks

□ Full CAN 2.0b 16 RX, 8 TX buffers[1]

□ Full-speed (FS) USB 2.0 12 Mbps using internal oscillator[1]

□ Up to four 16-bit configurable timer, counter, and PWM blocks

□ Library of standard peripherals

? 8, 16, 24, and 32-bit timers, counters, and PWMs

? SPI, UART, I2C

? Many others available in catalog

□ Library of advanced peripherals

? Cyclic Redundancy Check (CRC)

? Pseudo Random Sequence (PRS) generator

? LIN Bus 2.0

? Quadrature decoder

■ Analog peripherals (1.71V ≤ Vdda ≤ 5.5V)

□ 1.024V±0.1 internal voltage reference across -40°C to +85°C (14 ppm/°C)

□ Configurable Delta-Sigma ADC with 12 to 20-bit resolution[1]

? Sample rates up to 192 ksps

? Programmable gain stage: x0.25 to x16

? 12-bit mode, 192 ksps, 70 dB SNR, 1 bit INL/DNL

? 16-bit mode, 48 ksps, 90 dB SNR, 1 bit INL/DNL

□ 67 MHz, 24-bit fixed point digital filter block (DFB) to implement FIR and IIR filters[1]

□ Up to four 8-bit, 8 Msps IDACs or 1 Msps VDACs

□ Four comparators with 75 ns response time

□ Up to four uncommitted opamps with 25 mA drive capability

□ Up to four configurable multifunction analog blocks. Example configurations are PGA, TIA, Mixer, and Sample and Hold

■ Programming, debug, and trace

□ JTAG (4 wire), Serial Wire Debug (SWD) (2 wire), and Single Wire Viewer (SWV) interfaces

□ 8 address and 1 data breakpoint

□ 4 KB instruction trace buffer

□ Bootloader programming supportable through I2C, SPI, UART, USB, and other interfaces

■ Precision, programmable clocking

□ 1 to 66 MHz internal ±1 oscillator (over full temperature and voltage range) with PLL

□ 4 to 33 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 kHz, 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