23A1024-ESLASHSTSLASHP datasheet(6/32 Pages) MICROCHIP

部件名	23A1024-E/ST/P

功能描述	1Mbit SPI Serial SRAM with SDI and SQI Interface

PDF	32 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

标志

6 / 32 page

23A1024/23LC1024

DS20005142C-page 6

 2012-2015 Microchip Technology Inc.

FIGURE 2-1:

BYTE READ SEQUENCE (SPI MODE)

FIGURE 2-2:

BYTE WRITE SEQUENCE (SPI MODE)

TABLE 2-1:

INSTRUCTION SET

Instruction Name

Instruction Format

Hex

Code

Description

READ

0000 0011

0x03

Read data from memory array beginning at selected address

WRITE

0000 0010

0x02

Write data to memory array beginning at selected address

EDIO

0011 1011

0x3B

Enter Dual I/O access (enter SDI bus mode)

EQIO

0011 1000

0x38

Enter Quad I/O access (enter SQI bus mode)

RSTIO

1111 1111

0xFF

Reset Dual and Quad I/O access (revert to SPI bus mode)

RDMR

0000 0101

0x05

Read Mode Register

WRMR

0000 0001

0x01

Write Mode Register

SCK

23456

789 10 11

29 30 31 32 33 34 35 36 37 38 39

23 22 21 20

210

76543210

Instruction

24-bit Address

Data Out

High-Impedance

9 1011

2930 31323334 353637 38 39

23 22 21 20

654

321

Instruction

24-bit Address

Data Byte

High-Impedance

SCK

567

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