cat64lc10 Catalyst Semiconductor, cat64lc10 Datasheet - Page 6

• Manufacturer Part Number: cat64lc10
• Description: 1k/2k/4k-bit Spi Serial Eeprom
• Manufacturer: Catalyst Semiconductor

The CAT64LC10/20/40 is a 1K/2K/4K-bit nonvolatile
memory intended for use with all standard controllers.
The CAT64LC10/20/40 is organized in a 64/128/256 x
16 format. All instructions are based on an 8-bit format.
There are four 16-bit instructions: READ, WRITE, EWEN,
and EWDS. The CAT64LC10/20/40 operates on a single
power supply ranging from 2.5V to 6.0V and it has an on-
chip voltage generator to provide the high voltage needed
during a programming operation. Instructions, addresses
Doc. No. 1021, Rev. C
RDY/BUSY
RESET
RDY/BUSY
DO
CS
SK
RESET
DI
* Please check the instruction set table for address
DO
CS
SK
DI
1
0
t RESS
t RC
1
HIGH
0
t CSS
t DIS
1
t RESH
0
t DIH
0
0
6
t SKLOW
t PD0, t PD1
ADDRESS*
and data to be written are clocked into the DI pin on the
rising edge of the SK clock. The DO pin is normally in a
high impedance state except when outputting data in a
READ operation or outputting RDY/BSY status when
polled during a WRITE operation.
The format for all instructions sent to this device includes
a 4-bit start sequence, 1010, a 4-bit op code and an 8-
bit address field or dummy bits. For a WRITE operation,
t CSH
t HZ
t SKHI
D15 D14
t CSMIN
t SV
D1 D0
t SV