Cypress CY8C24894 Manual De Usuario

Document Number: 38-12018 Rev. *M

Page 4 of 47

System Resources, provide additional capability useful to

complete systems. Additional resources include a multiplier,

decimator, low voltage detection, and power on reset. Brief state-

ments describing the merits of each resource follow.

■

Full-Speed USB (12 Mbps) with 5 configurable endpoints and 

256 bytes of RAM. No external components required except 

two series resistors. Wider than commercial temperature USB 

operation (-10°C to +85°C).

■

Digital clock dividers provide three customizable clock 

frequencies for use in applications. The clocks can be routed 

to both the digital and analog systems. Additional clocks are 

generated using digital PSoC blocks as clock dividers.

■

Two multiply accumulates (MACs) provide fast 8-bit multipliers 

with 32-bit accumulate, to assist in both general math and 

digital filters.

■

Decimator provides a custom hardware filter for digital signal 

processing applications including creation of Delta Sigma 

ADCs.

■

The I2C module provides 100 and 400 kHz communication over 

two wires. Slave, master, multi-master are supported.

■

Low Voltage Detection (LVD) interrupts signal the application 

of falling voltage levels, while the advanced POR (Power On 

Reset) circuit eliminates the need for a system supervisor.

■

An internal 1.3V reference provides an absolute reference for 

the analog system, including ADCs and DACs.

■

Versatile analog multiplexer system.

Depending on your PSoC device characteristics, the digital and

analog systems can have 16, 8, or 4 digital blocks and 12, 6, or

4 analog blocks. The following table lists the resources available

for specific PSoC device groups. The device covered by this data

sheet is shown in the highlighted row of the table 

The quickest way to understand PSoC silicon is to read this data

sheet and then use the PSoC Designer Integrated Development

Environment (IDE). This data sheet is an overview of the PSoC

integrated circuit and presents specific pin, register, and

electrical specifications. 
For in depth information, along with detailed programming

details, see the PSoC® Programmable System-on-Chip

Technical Reference Manual for CY8C28xxx PSoC devices.
For up-to-date ordering, packaging, and electrical specification

www.cypress.com/pso

c.

www.cypress.com/pso

c. Select Application Notes under the

Documentation tab.

www.cypress.com/sho

p and through a growing number of

regional and global distributors, which include Arrow, Avnet,

Digi-Key, Farnell, Future Electronics, and Newark.

www.cypress.com/training

. The

training covers a wide variety of topics and skill levels to assist

you in your designs.

www.cypress.com/cypros

.

www.cypress.com/solutions

. Here you can find various appli-

cation designs that include firmware and hardware design files

that enable you to complete your designs quickly.

www.cypress.com/support

. If you cannot

find an answer to your question, call technical support at

1-800-541-4736. 

CY8C29x66

up to 

64

4

16

12

4

4

12

2K

32K

CY8C27x43

up to 

44

2

8

12

4

4

12

256 

Bytes

16K

CY8C24x94

56

1

4

48

2

2

6

1K

16K

CY8C24x23A

up to 

24

1

4

12

2

2

6

256 

Bytes

4K

CY8C21x34

up to 

28

1

4

28

0

2

4

512 

Bytes

8K

CY8C21x23

16

1

4

8

0

2

4

256 

Bytes

4K

CY8C20x34

up to 

28

0

0

28

0

0

3

512 

Bytes

8K