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CY8C9520 Datasheet(PDF) 4 Page - Cypress Semiconductor

Part No. CY8C9520
Description  20-, 40-, and 60-Bit I/O Expander with EEPROM
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY8C9520 Datasheet(HTML) 4 Page - Cypress Semiconductor

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August 17, 2005
Document No. 38-12036 Rev. *A
4
CY8C95xx Preliminary Data Sheet
Overview
Document Conventions
Acronyms
The following table lists the acronyms that are used in this doc-
ument.
Units of Measure
A units of measure table is located in the Electrical Specifica-
tions section. Table 4-1, “Units of Measure,” on page 16 lists all
the abbreviations used in Section 4.
Numeric Naming
Hexidecimal numbers are represented with all letters in upper-
case with an appended lowercase ‘h’ (for example, ‘14h’ or
‘3Ah’). Hexidecimal numbers may also be represented by a ‘0x’
prefix, the C coding convention. Binary numbers have an ap-
pended lowercase ‘b’ (e.g., 01010100b’ or ‘01000011b’). Num-
bers not indicated by an ‘h’, ‘b’, or 0x are decimal.
Table of Contents
The following is a table of contents for the remainder of this data
sheet.
2.
Pinouts and Pin Descriptions ..................................................5
2.1
Pinouts ..............................................................................5
2.1.1
28-Pin Part Pinout ................................................5
2.1.2
48-Pin Part Pinout ................................................6
2.1.3
100-Pin Part Pinout ..............................................7
2.2
PIN Descriptions ................................................................9
2.2.1
Extendable Soft Addressing™ .............................9
2.2.2
Interrupt Pin (INT) .................................................9
2.2.3
Write Disable Pin (WD) ........................................9
2.2.4
External Reset Pin (XRES) ..................................9
2.2.5
Working with PWMs .............................................9
3.
Register Reference .................................................................11
3.1
Register Mapping Table ..................................................11
3.2
Register Descriptions ......................................................12
3.2.1
Input Port Registers (00h - 07h) .........................12
3.2.2
Output Port Registers (08h - 0Fh) ......................12
3.2.3
Int. Status Port Registers (10h - 17h) .................12
3.2.4
Port Select Register (18h) ..................................12
3.2.5
Interrupt Mask Port Register (19h) .....................12
3.2.6
Select PWM Register (1Ah) ...............................12
3.2.7
Inversion Register (1Bh) .....................................12
3.2.8
Port Direction Register (1Ch) .............................12
3.2.9
Drive Mode Registers (1Dh-23h) ........................13
3.2.10 PWM Select Register (28h) ................................13
3.2.11 Config (29h) ........................................................13
3.2.12 Period Register (2Ah) .........................................13
3.2.13 Pulse Width Register (2Bh) ................................13
3.2.14 Divider Register (2Ch) ........................................13
3.2.15 Enable Register (2Dh) ........................................13
3.2.16 Device ID/Status Register (2Eh) ........................14
3.2.17 Command Register (30h) ...................................14
3.3
Commands Description ...................................................14
3.3.1
Store Config to E2 POR Defaults Cmd (01h) .....14
3.3.2
Restore Factory Defaults Cmd (02h) ..................14
3.3.3
Write E2 POR Defaults Cmd (03h) .....................14
3.3.4
Read E2 POR Defaults Cmd (04h) ....................15
3.3.5
Write Device Config Cmd (05h) ..........................15
3.3.6
Read Device Config Cmd (06h) .........................15
3.3.7
Reconfigure Device Cmd (07h) ..........................15
4.
Electrical Specifications .........................................................16
4.1
Absolute Maximum Ratings .............................................16
4.2
Operating Temperature ...................................................17
4.3
DC Electrical Characteristics ...........................................17
4.3.1
DC Chip-Level Specifications .............................17
4.3.2
DC Programming Specifications ........................18
4.3.3
DC General Purpose I/O Specifications .............18
4.4
AC Electrical Characteristics ...........................................19
4.4.1
AC General Purpose I/O Specifications .............19
4.4.2
AC PWM Output Jitter Specifications .................19
4.4.3
AC I2C Specifications .........................................20
5.
Packaging Information ...........................................................21
5.1
Packaging Dimensions ....................................................21
5.2
Thermal Impedances .......................................................23
5.3
Solder Reflow Peak Temperature ...................................23
6.
Ordering Information ..............................................................24
6.1
Ordering Code Definitions ...............................................24
7.
Sales and Service Information ...............................................25
7.1
Revision History ..............................................................25
7.2
Copyrights and Code Protection .....................................25
Acronym
Description
AC
alternating current
DC
direct current
EEPROM
electrically erasable programmable read-only memory (E2)
GPIO
general purpose IO
I/O
input/output
MSb
most-significant bit
POR
power on reset
PWM
pulse width modulator


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