Cypress CY2291 manual Test Circuit, Ordering Information, Package Characteristics

CY2291

Switching Waveforms

Figure 5. CPU Frequency Change

SELECT	OLD SELECT		NEW SELECT STABLE
CPU		Fold		t8 & t10	Fnew

Test Circuit

VDD

0.1 μF

VDD

0.1 μF

Ordering Information

OUTPUTS

GND

CLK out

CLOAD

Ordering Code	Package Type	Operating Range	Operating Voltage
CY2291FI[16]	20-Pin SOIC	Industrial	3.3V or 5.0V
Pb-Free
CY2291SXC–XXX	20-Pin SOIC	Commercial	5.0V
CY2291SXC–XXXT	20-Pin SOIC – Tape and Reel	Commercial	5.0V
CY2291SXL–XXX	20-Pin SOIC	Commercial	3.3V
CY2291SXL–XXXT	20-Pin SOIC – Tape and Reel	Commercial	3.3V
CY2291FX	20-Pin SOIC	Commercial	3.3V or 5.0V
CY2291FXT	20-Pin SOIC – Tape and Reel	Commercial	3.3V or 5.0V

Package Characteristics

Package	θJA (C/W)	θJC (C/W)	Transistor Count
20-pin SOIC	125	25	9271

Note

16. Not recommended for new designs.

Document #: 38-07189 Rev. *C Page 10 of 12

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