CAT24C512

CAT24C512 is a 65,536words × 8 bits EEPROM (Electrically Erasable Programmable Read-Only Memory) chip manufactured by onsemi. This posting will provide the OSS-ECAL(Open Source Software for Electronic Components Abstraction Layer) for CAT24C512.
MCU interface : I2C

CAUTION:Please be sure to refer to the latest version of the Datasheet prior to actual design.

CAT24C512

General description

The CAT24C512 is a EERPOM Serial 512−Kb I2C internally organized as 65,536 words of 8 bits each.
It features a 128−byte page write buffer and supports the Standard (100 kHz), Fast (400 kHz) and Fast−Plus (1 MHz) I2C protocol.
Write operations can be inhibited by taking the WP pin High (this protects the entire memory).
External address pins make it possible to address up to eight CAT24C512 devices on the same bus.
On−Chip ECC (Error Correction Code) makes the device suitable for high reliability applications.

Feature
  • Supports Standard, Fast and Fast−Plus I2C Protocol
  • 1.8 V to 5.5 V Supply Voltage Range
  • 128−Byte Page Write Buffer
  • Hardware Write Protection for Entire Memory
  • Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs (SCL and SDA)
  • Low Power CMOS Technology
  • 1,000,000 Program/Erase Cycles
  • 100 Year Data Retention
  • Industrial and Extended Temperature Range
  • 8−pin, SOIC, TSSOP, 8−pad UDFN and 8−ball WLCSP Packages
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

OSS-ECAL specification

API Function

This product provides the following command API functions.

etSTS oCAT24C512_BYTE_WRITE( etCMP cmp, uint16 mem_adr, uint8 val )

Return value
Parameter IN

etSTS
etCMP cmp
uint16 mem_adr
uint8 val

OSS-ECAL status code
OSS-ECAL Components number codes
Memory address
Write data

Feature :
Command API function to write the value of val to the address specified by mem_adr.

Process :
1. Writes the value of val to the address specified in mem_adr.
2. Wait until measurement time iCAT24C512_WRITE_TIME[ms] has elapsed (return value eSTS_EXE while waiting).

Return value :
eSTS_FIN
eSTS_EXE
eSTS_ERR_PARAMETER
eSTS_ERR_HAL_I2C
eSTS_ERR_OTHERS_RUN
eSTS_ERR_I2C_OBJECT


NOTE :
iCAT24C512_WRITE_TIME[ms] Progress measurement is calculated from the Thread cycle that calls this API function, so please set the Thread cycle to THREAD_OSS_ECAL_PERIOD[ms].

etSTS oCAT24C512_PAGE_WRITE( etCMP cmp, uint16 mem_adr, uint16 len, uint8* buf )

Return value
Parameter IN

etSTS
etCMP cmp
uint16 mem_adr
uint16 len
uint8* buf

OSS-ECAL status code
OSS-ECAL Components number codes
Memory address
Number of bytes to write (max 128)
Data buffer to write

Feature :
Command API function that writes values from buf[0] to buf[len-1] in order from the address specified in mem_adr.

Process :
1. Write values from buf[0] to buf[len-1] in order from the address specified in mem_adr.
2. Wait until measurement time iCAT24C512_WRITE_TIME[ms] has elapsed (return value eSTS_EXE while waiting).

Return value :
eSTS_FIN
eSTS_EXE
eSTS_ERR_PARAMETER
eSTS_ERR_HAL_I2C
eSTS_ERR_OTHERS_RUN
eSTS_ERR_I2C_OBJECT


NOTE :
If mem_adr + len > 0bXXXXXXXXXXX1111111, addresses A7 to A15 are fixed and A0 to A6 are rolled over to 0bXXXXXXXXXXX0000000.
iCAT24C512_WRITE_TIME[ms] Progress measurement is calculated from the Thread cycle that calls this API function, so please set the Thread cycle to THREAD_OSS_ECAL_PERIOD[ms].

etSTS oCAT24C512_IMM_ADR_READ( etCMP cmp, uint8* rlt )

Return value
Parameter IN
Parameter OUT

etSTS
etCMP cmp
uint8* rlt

OSS-ECAL status code
OSS-ECAL Components number codes
Read data

Feature :
Command API function to read 1Byte value from the last Read or Write address +1 and save it to rlt.

Process :
1. Read 1Byte value from the last read or write address +1 and save it to rlt.

Return value :
eSTS_FIN
eSTS_ERR_HAL_I2C
eSTS_ERR_OTHERS_RUN
eSTS_ERR_I2C_OBJECT


NOTE :
If the last Read or Write address + 1 > 0b111111111111111111111111, the address rolls over to 0b00000000000000000000000000.

etSTS oCAT24C512_SELECT_READ( etCMP cmp, uint16 mem_adr, uint8* rlt )

Return value
Parameter IN

Parameter OUT

etSTS
etCMP cmp
uint16 mem_adr
uint8* rlt

OSS-ECAL status code
OSS-ECAL Components number codes
Memory address
Read data

Feature :
Command API function that reads 1 Byte worth of value from the address specified in mem_adr and saves it to rlt.

Process :
1. Read 1Byte worth of value from the address specified in mem_adr and save it to rlt.

Return value :
eSTS_FIN
eSTS_ERR_PARAMETER
eSTS_ERR_HAL_I2C
eSTS_ERR_OTHERS_RUN
eSTS_ERR_I2C_OBJECT


NOTE :

etSTS oCAT24C512_SEQ_READ( etCMP cmp, uint16 mem_adr, uint16 len, uint8* buf )

Return value
Parameter IN


Parameter OUT

etSTS
etCMP cmp
uint16 mem_adr
uint16 len
uint8* buf

OSS-ECAL status code
OSS-ECAL Components number codes
Memory address
Number of bytes to read
Data buffer to read

Feature :
Command API function that reads sequentially from the address specified in mem_adr and saves from buf[0] to buf[len-1].

Process :
1. Read in order from the address specified in mem_adr and save from buf[0] to buf[len-1].

Return value :
eSTS_FIN
eSTS_ERR_PARAMETER
eSTS_ERR_HAL_I2C
eSTS_ERR_OTHERS_RUN
eSTS_ERR_I2C_OBJECT


NOTE :
If mem_adr + len > 0b111111111111111111111111, the address rolls over to 0b00000000000000000000000000.

etSTS oCAT24C512_WP_EN( etCMP cmp )

Return value
Parameter IN

etSTS
etCMP cmp

OSS-ECAL status code
OSS-ECAL Components number codes

Feature :
Command API function to write protect enable (write disable).

Process :
1. Write protect output as “Hi”.

Return value :
eSTS_FIN
eSTS_ERR_GPIO_OBJECT


NOTE :

etSTS oCAT24C512_WP_DIS( etCMP cmp )

Return value
Parameter IN

etSTS
etCMP cmp

OSS-ECAL status code
OSS-ECAL Components number codes

Feature :
Command API function to write protect disable (write enable).

Process :
1. Write protect output as “Low”.

Return value :
eSTS_FIN
eSTS_ERR_GPIO_OBJECT


NOTE :

Files
Folder*Filesummary
CAT24C512_HALNAME/samplesample.c (.cpp)Sample Application Program
sample.hSample Application Header
CAT24C512_HALNAMEoCAT24C512.c (.cpp)OSS-ECAL Program for CAT24C512
oCAT24C512.hOSS-ECAL Header for CAT24C512
oss_ecal.hOSS-ECAL Common Header (Ver 01.01.00 or later)
user_setting.c (.cpp)Const and Table of User setting
user_setting.hHeader of User setting
oHAL_i2c_stm32f4.cHAL Program for STM32Cube FW_F4
oHAL_i2c_stm32f4.hHAL Header for STM32Cube FW_F4
readme.mdReadme
OSS-ECAL Terms of Use.txtOSS-ECAL Terms of Use

* For HALNAME, please refer to HAL Support.

HAL Support List
MCU/Board
manufacturer
HALMCU*Development environment*HALNAME
ArduinoArduino 1.8.6ATmega2560
ATmega328P
Mega 2560 Rev3
Arduino Pro Mini 3.3V
ARDUINO
ARMMbed 6.17.0STM32F401RETxSTM32 Nucleo-64 boardsMBED
InfineonModusToolbox HAL Cat1 2.4.3CYBLE-416045-02CY8CPROTO-063-BLE PSoC 6 BLE Prototyping KitModusToolbox
NXPMCUXpresso SDK
iMXRT1051B_1052B
ksdk2_0
CYBLE-416045-02IMXRT1050-EVKBiMXRT1051B1052B
RenesasSSP 2.4.0R7FS7G27H3A01CFCS7G2 SKSSP
STMSTM32Cube FW_F4 V1.27.1STM32F401RETxSTM32 Nucleo-64 boardsSTM32F4
Debian ProjectDebian(Linux) v2022.04TI AM335xBeagleBone Black – Rev CLinux

* MCU and development environment at the time of development. Even if the same HAL is used, different MCUs and development environments may not work together.

OSS-ECAL Download

Please login before downloading. To register as a new user, please click here.
This OSS-ECAL is a sample version and can be downloaded without user registration, but please accept the OSS-ECAL Terms of Use before downloading.

Built-in How to

Please refer to the following to incorporate API functions into your user program.

Pin A0, A1, and A2 should be set with the following code in user_setting.h.
How to set I2C Device Address in Renesas SSP.

// Device address Code bit2:A2, bit1:A1, bit0:A0
#define CAT24C512_1             0b00000111

For Infineon ModusToolbox HAL, set the I2C Timeout setting with the following code in user_setting.h. For details, see cyhal_i2c_master_write(), cyhal_i2c_master_read() Parameters timeout.

#define I2C_TIMEOUT             10U     // Timeout[ms] 

For STM32Cube FW_F4 HAL, I2C Timeout time is 25ms.

Note :
For the following command API functions, the Timeout time varies depending on the Read/Write data length len.
etSTS oCAT24C512_PAGE_WRITE( etCMP cmp, uint16 mem_adr, uint16 len, uint8* buf )
etSTS oCAT24C512_SEQ_READ( etCMP cmp, uint16 mem_adr, uint16 len, uint8* buf )

How to incorporate OSS-ECAL into user programs

How to incorporate multiple OSS-ECALs in a user program (same MCU function)

How to incorporate multiple OSS-ECALs in a user program (different MCU function)

How to incorporate multiple identical electronic components into a user program

How to reduce the impact on user programs by replacing electronic components

OSS-ECAL English
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