CY8C9520A_10 CYPRESS [Cypress Semiconductor], CY8C9520A_10 Datasheet - Page 2

• Manufacturer Part Number: CY8C9520A_10
• Description: 20, 40, and 60 Bit I/O Expander with EEPROM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Contents
Architecture .............................................................3
Device Access Addressing ....................................4
Document Conventions ..........................................4
Pinouts .....................................................................5
Pin Descriptions ......................................................9
Register Mapping Table ........................................11
Register Descriptions ...........................................11
Document Number: 38-12036 Rev. *E
Applications ........................................................3
Serial EEPROM Device ......................................4
Multi Port I/O Device ...........................................4
Acronyms ............................................................4
Units of Measure ................................................4
Numeric Naming .................................................4
28-Pin Part Pinout ..............................................5
48-Pin Part Pinout ..............................................6
100-Pin Part Pinout ............................................7
Extendable Soft Addressing ...............................9
Interrupt Pin (INT) ...............................................9
Write Disable Pin (WD) .......................................9
External Reset Pin (XRES) .................................9
Working with PWMs ...........................................9
Input Port Registers (00h - 07h) .......................11
Output Port Registers (08h - 0Fh) ....................11
Int. Status Port Registers (10h - 17h) ...............12
Port Select Register (18h) ................................12
Interrupt Mask Port Register (19h) ...................12
Select PWM Register (1Ah) ..............................12
Inversion Register (1Bh) ...................................12
Port Direction Register (1Ch) ...........................12
Drive Mode Registers (1Dh-23h) ......................12
PWM Select Register (28h) ..............................12
Config (29h) ......................................................13
Period Register (2Ah) .......................................13
Pulse Width Register (2Bh) ..............................13
Commands Description ........................................14
Electrical Specifications .......................................16
Packaging Dimensions .........................................21
Features and Ordering Information .....................24
Acronyms ...............................................................25
Reference Documents ..........................................25
Document Conventions ........................................25
Glossary .................................................................26
Document History Page ........................................31
Sales, Solutions, and Legal Information .............32
Divider Register (2Ch) ......................................13
Enable Register (2Dh) ......................................13
Device ID/Status Register (2Eh) .......................13
Watchdog Register (2Fh) .................................14
Command Register (30h) .................................14
Store Config to E2 POR Defaults Cmd (01h) ...14
Restore Factory Defaults Cmd (02h) ................14
Write E2 POR Defaults Cmd (03h) ...................14
Read E2 POR Defaults Cmd (04h) ...................15
Write Device Config Cmd (05h) ........................15
Read Device Config Cmd (06h) ........................15
Reconfigure Device Cmd (07h) ........................15
Absolute Maximum Ratings ..............................16
Operating Temperature ....................................16
DC Electrical Characteristics ............................17
AC Electrical Characteristics ............................19
Thermal Impedances ........................................23
Solder Reflow Peak Temperature ....................23
Ordering Code Definitions ................................24
Units of Measure ..............................................25
Numeric Conventions .......................................25
Worldwide Sales and Design Support ..............32
Products ...........................................................32
PSoC Solutions ................................................32
CY8C9540A, CY8C9560A
CY8C9520A
Page 2 of 32
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