Cypress CY8C21634, CY8C21334, CY8C21234, CY8C21434, CY8C21534 manual AC Programming Specifications

Page 31

CY8C21634, CY8C21534

CY8C21434, CY8C21334, CY8C21234

Table 35. 3.3V AC External Clock Specifications

Symbol

Description

Min

Typ

Max

Units

Notes

FOSCEXT

Frequency with CPU Clock divide by 1

0.093

–

12.3

MHz

Maximum CPU frequency is 12

 

 

 

 

 

 

MHz at 3.3V. With the CPU clock

 

 

 

 

 

 

divider set to 1, the external clock

 

 

 

 

 

 

must adhere to the maximum

 

 

 

 

 

 

frequency and duty cycle

 

 

 

 

 

 

requirements.

FOSCEXT

Frequency with CPU Clock divide by 2 or

0.186

–

24.6

MHz

If the frequency of the external clock

 

greater

 

 

 

 

is greater than 12 MHz, the CPU

 

 

 

 

 

 

clock divider must be set to 2 or

 

 

 

 

 

 

greater. In this case, the CPU clock

 

 

 

 

 

 

divider ensures that the fifty percent

 

 

 

 

 

 

duty cycle requirement is met.

–

High Period with CPU Clock divide by 1

41.7

–

5300

ns

 

–

Low Period with CPU Clock divide by 1

41.7

–

–

ns

 

–

Power Up IMO to Switch

150

–

–

μs

 

Table 36. 2.7V AC External Clock Specifications

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

Description

Min

Typ

Max

Units

Notes

FOSCEXT

Frequency with CPU Clock divide by 1

0.093

–

3.08

MHz

Maximum CPU frequency is 3 MHz

 

 

 

 

 

 

at 2.7V. With the CPU clock divider

 

 

 

 

 

 

set to 1, the external clock must

 

 

 

 

 

 

adhere to the maximum frequency

 

 

 

 

 

 

and duty cycle requirements.

FOSCEXT

Frequency with CPU Clock divide by 2 or

0.186

–

6.35

MHz

If the frequency of the external clock

 

greater

 

 

 

 

is greater than 3 MHz, the CPU

 

 

 

 

 

 

clock divider must be set to 2 or

 

 

 

 

 

 

greater. In this case, the CPU clock

 

 

 

 

 

 

divider ensures that the fifty percent

 

 

 

 

 

 

duty cycle requirement is met.

–

High Period with CPU Clock divide by 1

160

–

5300

ns

 

–

Low Period with CPU Clock divide by 1

160

–

–

ns

 

–

Power Up IMO to Switch

150

–

–

μs

 

AC Programming Specifications

Table 37 lists the guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V and -40°C

≤TA ≤ 85°C, or 3.0V to 3.6V and -40°C ≤ TA ≤ 85°C, respectively. Typical parameters apply to 5V, 3.3V, or 2.7V at 25°C and are for design guidance only.

Table 37. AC Programming Specifications

Symbol

Description

Min

Typ

Max

Units

Notes

TRSCLK

Rise Time of SCLK

1

–

20

ns

 

TFSCLK

Fall Time of SCLK

1

–

20

ns

 

TSSCLK

Data Set up Time to Falling Edge of SCLK

40

–

–

ns

 

THSCLK

Data Hold Time from Falling Edge of SCLK

40

–

–

ns

 

FSCLK

Frequency of SCLK

0

–

8

MHz

 

TERASEB

Flash Erase Time (Block)

–

15

–

ms

 

Document Number: 38-12025 Rev. *O

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Contents San Jose, CA Document Number 38-12025 Rev. *O FeaturesLogic Block Diagram Cypress Semiconductor Corporation 198 Champion CourtPSoC Core PSoC Functional OverviewDigital System Analog Multiplexer System Analog SystemAdditional System Resources ArrayNumber PSoC Device CharacteristicsPSoC Device Characteristics PSoC Part Getting StartedPSoC Designer Software Subsystems Development ToolsIn-Circuit Emulator Organize and Connect Configure ComponentsDesigning with PSoC Designer Select ComponentsNumeric Naming Document ConventionsAcronyms Used Units of MeasurePin Part Pinout Pin InformationXres Active high external reset with internal pull downCY8C21534 28-Pin PSoC Device QFN CY8C21634 part OCD odd data output OCD OcdeOCD even data IO OCD OcdoOCD Cclk Pin Definitions CY8C21001 56-Pin SsopPin No Type Pin Name Description Digital Analog OCD HclkRegister Conventions Description Register ReferenceRegister Conventions Register Mapping TablesName Addr 1,Hex Access Register Map 1 Table Configuration SpaceCY8C21634, CY8C21534 CY8C21434, CY8C21334, CY8C21234 Units of Measure Symbol Unit of Measure Electrical SpecificationsSymbol Description Min Typ Max Units Operating TemperatureDC Electrical Characteristics Absolute Maximum Ratings Symbol Description Min Typ UnitsDC General Purpose IO Specifications DC Chip-Level Specifications Symbol Description Min TypAgnd DC Operational Amplifier Specifications DC Switch Mode Pump Specifications DC Low Power Comparator SpecificationsPSoC DC POR and LVD Specifications DC Analog Mux Bus SpecificationsDC Programming Specifications AC Chip-Level Specifications AC Electrical CharacteristicsDC24M CPU Frequency 2.7V Nominal Internal Main Oscillator Frequency for 12 MHzDigital PSoC Block Frequency 2.7V Nominal AC Operational Amplifier Specifications AC General Purpose IO SpecificationsAC Low Power Comparator Specifications Switch Rate MHz AC Analog Mux Bus SpecificationsAC Digital Block Specifications AC External Clock Specifications AC Programming Specifications AC I2C Specifications Set up Time for Stop Condition Set up Time for a Repeated Start ConditionPackaging Information Packaging DimensionsPin 5x5 mm 0.93 MAX QFN Pin 5x5 mm 0.60 MAX QFN Pin Sawn QFN Package Ssop Thermal ImpedancesThermal Impedances per Package Typical θ JA Typical θ JC Soic32 QFN Solder Reflow Peak TemperatureSoftware Development Tool SelectionEvaluation Tools Device Programmers Accessories Emulation and ProgrammingThird-Party Tools Build a PSoC Emulator into Your Board Package Ordering InformationOrdering Code Definitions CY 8 C 21Document History Worldwide Sales and Design Support Products PSoC Solutions Sales, Solutions, and Legal InformationUSB

CY8C21634, CY8C21534, CY8C21434, CY8C21334, CY8C21234 specifications

The Cypress CY8C21234, CY8C21334, CY8C21434, CY8C21534, and CY8C21634 are members of the PSoC® 1 family of microcontrollers, designed for embedded applications that demand flexibility, integration, and efficiency. These microcontrollers are well-suited for a variety of projects due to their unique characteristics and advanced technologies.

One of the primary features of the PSoC 1 series is the integration of analog and digital components on a single chip. This combination allows for the implementation of complex control algorithms without the need for multiple external components. Each device in this family is equipped with programmable analog blocks capable of interfacing with sensors, as well as digital blocks that facilitate communication with various peripherals.

The CY8C21234 series provides a 16-bit architecture, which enhances performance for processing and control tasks. The microcontrollers boast an operational range of up to 24 MHz, making them suitable for high-speed applications. With up to 16 KB of flash memory, these devices have ample memory for storing program code and user data.

Another key characteristic of the CY8C21234, CY8C21334, CY8C21434, CY8C21534, and CY8C21634 devices is their ease of use. They come with a comprehensive development environment known as PSoC Designer. This software provides a user-friendly interface to configure the device’s hardware resources graphically and allows for seamless integration of custom firmware.

In terms of communication capabilities, these microcontrollers support multiple protocols, including I²C, SPI, and UART, providing versatile interfacing options with other devices. This makes them ideal for applications such as sensor processing, motor control, and portable devices.

Power management is another significant highlight of the PSoC 1 family. The microcontrollers are designed with low-power operation in mind, featuring multiple sleep modes that contribute to extended battery life in portable applications.

Overall, the Cypress CY8C21234, CY8C21334, CY8C21434, CY8C21534, and CY8C21634 microcontrollers are a versatile solution for a wide range of embedded applications, combining programmable analog and digital components, ease of development, and efficient power management in a compact form factor. Their performance and flexibility make them a popular choice among engineers and developers exploring innovative designs.
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