Cypress CY8C24123A manual Document Conventions, Acronyms Used, Units of Measure, Numeric Naming

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CY8C24123A CY8C24223A, CY8C24423A

The next step is to write your main program, and any sub-routine using PSoC Designer’s Application Editor subsystem. The Application Editor includes a Project Manager that allows you to open the project source code files (including all generated code files) from a hierarchal view. The source code editor provides syntax coloring and advanced edit features for both C and assembly language. File search capabilities include simple string searches and recursive “grep-style” patterns. A single mouse click invokes the Build Manager. It employs a professional-strength “makefile” system to automatically analyze all file dependencies and run the compiler and assembler as necessary. Project-level options control optimization strategies used by the compiler and linker. Syntax errors are displayed in a console window. Double clicking the error message takes you directly to the offending line of source code. When all is correct, the linker builds a HEX file image suitable for programming.

The last step in the development process takes place inside the PSoC Designer’s Debugger subsystem. The Debugger downloads the HEX image to the In-Circuit Emulator (ICE) where it runs at full speed. Debugger capabilities rival those of systems costing many times more. In addition to traditional single-step, run-to-breakpoint and watch-variable features, the Debugger provides a large trace buffer and allows you define complex breakpoint events that include monitoring address and data bus values, memory locations and external signals.

Document Conventions

Acronyms Used

The following table lists the acronyms that are used in this document.

Table 2. Acronyms Used

Acronym

Description

AC

alternating current

 

 

ADC

analog-to-digital converter

 

 

API

application programming interface

 

 

CPU

central processing unit

 

 

CT

continuous time

 

 

DAC

digital-to-analog converter

 

 

DC

direct current

 

 

ECO

external crystal oscillator

 

 

EEPROM

electrically erasable programmable read-only

 

memory

FSR

full scale range

 

 

GPIO

general purpose IO

 

 

GUI

graphical user interface

 

 

HBM

human body model

 

 

ICE

in-circuit emulator

 

 

ILO

internal low speed oscillator

 

 

IMO

internal main oscillator

 

 

IO

input/output

 

 

IPOR

imprecise power on reset

 

 

Table 2. Acronyms Used (continued)

Acronym

Description

LSb

least-significant bit

 

 

LVD

low voltage detect

 

 

MSb

most-significant bit

 

 

PC

program counter

 

 

PLL

phase-locked loop

 

 

POR

power on reset

 

 

PPOR

precision power on reset

 

 

PSoC®

Programmable System-on-Chip™

 

 

PWM

pulse width modulator

 

 

SC

switched capacitor

 

 

SLIMO

slow IMO

 

 

SMP

switch mode pump

 

 

SRAM

static random access memory

 

 

Units of Measure

A unit of measure table is located in the section

Electrical Specifications on page 18. Table 8 on page 14 lists all the abbreviations used to measure the PSoC devices.

Numeric Naming

Hexadecimal numbers are represented with all letters in uppercase with an appended lowercase ‘h’ (for example, ‘14h’ or ‘3Ah’). Hexadecimal numbers may also be represented by a ‘0x’ prefix, the C coding convention. Binary numbers have an appended lowercase ‘b’ (for example, 01010100b’ or ‘01000011b’). Numbers not indicated by an ‘h’ or ‘b’ are decimal.

Document Number: 38-12028 Rev. *I

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Contents Logic Block Diagram FeaturesCypress Semiconductor Corporation 198 Champion Court PSoC Core PSoC Functional OverviewDigital System Analog System Analog System Block DiagramConsultants Technical Support Application Notes PSoC Device Characteristics PSoC PartGetting Started Additional System ResourcesDesign Browser Development ToolsPSoC Designer Software Subsystems Device EditorApplication Editor Designing with User ModulesHardware Tools Device EditorNumeric Naming Document ConventionsAcronyms Used Units of Measure3SOIC PinoutsPin Part Pinoutt 2PDIPSDA, ISSP-SDATA Pin Part PinoutPin Definitions 20-Pin PDIP, SSOP, and Soic SCL, ISSP-SCLKCY8C24423A 28-Pin PSoC Device Active High External Reset with InternalExtclk Switch Mode Pump SMP ConnectionPin Definitions 32-Pin QFN To External Components requiredNot for Production OCDOCD Cclk OCD HclkAbbreviations Used Register ReferenceRegister Conventions Register Mapping TablesRegister Map Bank 0 Table User Space Name Addr Access HexRegister Map Bank 1 Table Configuration Space ACB01CR2 Cpuf CPUSCR1 CPUSCR0 Units of Measure Symbol Unit of Measure Electrical SpecificationsAbsolute Maximum Ratings Operating TemperatureAbsolute Maximum Ratings Symbol Description Min Typ Units Operating Temperature Symbol Description Min Typ Max UnitsDC Chip-Level Specifications DC Electrical CharacteristicsDC General Purpose IO Specifications Psrr OA DC Operational Amplifier SpecificationsAverage Input Offset Voltage Drift LPC voltage offset Document Number 38-12028 Rev. *I DC Low Power Comparator SpecificationsLow power comparator LPC reference Vdd Voltage range LPC supply currentPsrr OB DC Analog Output Buffer SpecificationsDC Switch Mode Pump Specifications Switching Duty Cycle Switching Frequency MHzOutput Voltage Ripple depends on Agnd = 2 x BandGap Not Allowed Agnd = P24 P24 = Vdd/2 DC Analog Reference SpecificationsBandgap Voltage Reference Agnd = Vdd/2 Agnd = 2 x BandGap BG + Agnd = P24 P24 = Vdd/2CY8C24123A CY8C24223A, CY8C24423A DC POR, SMP, and LVD Specifications DC Analog PSoC Block SpecificationsDC Programming Specifications AC Chip-Level Specifications AC Electrical CharacteristicsDC24M MHz Duty Cycle Jitter12M1P MHz Period Jitter IMO MHz Refer to the AC Digital Block Nominal SpecificationsCPU Frequency 2.7V Nominal DC12MGain Enable32K Select AC General Purpose IO Specifications NV/rt-Hz AC Operational Amplifier SpecificationsNoise at 1 kHz Power = Medium, Opamp Bias = High BW OACY8C24123A CY8C24223A, CY8C24423A Typical Agnd Noise with P24 Bypass Spim AC Low Power Comparator SpecificationsAC Digital Block Specifications CrcprsCRC PRSLarge Signal Bandwidth, 1V pp, 3dB BW, 100 pF Load AC Analog Output Buffer SpecificationsBW OB AC External Clock Specifications AC I2C Specifications AC Programming SpecificationsBus Free Time Between a Stop and Start Condition Setup Time for Stop ConditionPulse Width of spikes are suppressed by Input filter Packaging Information Packaging DimensionsPin 150-Mil Soic Pin 210-Mil Ssop 51-85014 *D Pin 5x5 mm QFN Pin Sawn QFN Package Thermal Impedances Capacitance on Crystal PinsSolder Reflow Peak Temperature Typical Package Capacitance on Crystal PinsEvaluation Tools Development Tool SelectionSoftware Development KitsThird Party Tools Build a PSoC Emulator into Your Board Accessories Emulation and ProgrammingEmulation and Programming Accessories Device ProgrammersOrdering Code Definitions Ordering InformationSawn QFN Orig. Submission Description of Change Date Document HistoryWorldwide Sales and Design Support Products PSoC Solutions Sales, Solutions, and Legal InformationUSB

CY8C24123A specifications

The Cypress CY8C24123A is a prominent member of the PSoC (Programmable System-on-Chip) family, which integrates a microcontroller with programmable analog and digital components on a single chip. Designed for low-power applications, the CY8C24123A offers a compelling mix of features and technologies that make it a popular choice for embedded system developers.

One of the standout features of the CY8C24123A is its low power consumption, which allows it to extend battery life in portable applications. It operates at a voltage range of 1.71V to 5.5V, making it versatile for various power supply options. This device is equipped with a 24 MHz CPU that efficiently executes tasks while keeping energy usage minimal.

The chip boasts a rich set of programmable peripherals, including analog components such as operational amplifiers, comparators, and DACs, enabling designers to create custom signal processing pathways. These features are complemented by a variety of digital peripherals, like timers, UART, I2C, and SPI interfaces, which facilitate communication with other devices and microcontrollers. The integration of these components reduces the need for external components, leading to a more compact design and lower overall system costs.

Moreover, the CY8C24123A includes Flash memory (up to 2 KB) and SRAM (256 bytes), providing ample storage for application code and data. This Flash memory is reprogrammable, enabling developers to update their applications easily without needing to replace the chip.

Another defining characteristic of the CY8C24123A is its programmability. The device can be configured and programmed using the Cypress PSoC Designer software, which allows developers to design and simulate their applications in a user-friendly environment. The combination of hardware-based flexibility and software configuration provides a robust platform for creating custom solutions tailored to specific application requirements.

Overall, the Cypress CY8C24123A stands out for its balance of performance, programmability, and power efficiency. Its integration of programmable analog and digital blocks makes it suitable for a wide range of applications, including industrial control, consumer electronics, and automotive systems. The ability to customize the chip's functionality further boosts its appeal, making it an excellent choice for developers seeking a versatile and efficient solution for their embedded projects.