DataSheet8.cn


PDF ( 数据手册 , 数据表 ) 23A1024

零件编号 23A1024
描述 1Mbit SPI Serial SRAM
制造商 Microchip
LOGO Microchip LOGO 


1 Page

No Preview Available !

23A1024 数据手册, 描述, 功能
23A1024/23LC1024
1Mbit SPI Serial SRAM with SDI and SQI Interface
Device Selection Table
Part
Number
VCC Range
23A1024
1.7-2.2V
23LC1024
2.5-5.5V
Note 1: 16 MHz for E-temp.
Temp.
Ranges
I, E
I, E
Dual I/O
(SDI)
Yes
Yes
Quad I/O
(SQI)
Yes
Yes
Max. Clock
Frequency
20 MHz(1)
20 MHz(1)
Packages
SN, ST, P
SN, ST, P
Features
• SPI Bus Interface:
- SPI compatible
- SDI (dual) and SQI (quad) compatible
- 20 MHz Clock rate for all modes
• Low-Power CMOS Technology:
- Read Current: 3 mA at 5.5V, 20 MHz
- Standby Current: 4 A at +85°C
• Unlimited Read and Write Cycles
• Zero Write Time
• 128K x 8-bit Organization:
- 32-byte page
• Byte, Page and Sequential Mode for Reads and
Writes
• High Reliability
• Temperature Ranges Supported:
- Industrial (I):
-40C to +85C
- Automotive (E): -40C to +125C
• RoHS Compliant
• 8 Lead SOIC, TSSOP and PDIP Packages
Pin Function Table
Name
Function
CS
SO/SIO1
SIO2
VSS
SI/SIO0
SCK
HOLD/SIO3
VCC
Chip Select Input Pin
Serial Output/SDI/SQI Pin
SQI Pin
Ground Pin
Serial Input/SDI/SQI Pin
Serial Clock Pin
Hold/SQI Pin
Power Supply Pin
Description
The Microchip Technology Inc. 23A1024/23LC1024
are 1 Mbit Serial SRAM devices. The memory is
accessed via a simple Serial Peripheral Interface (SPI)
compatible serial bus. The bus signals required are a
clock input (SCK), a data in line (SI) and a data out line
(SO). Access to the device is controlled through a Chip
Select (CS) input. Additionally, SDI (Serial Dual
Interface) and SQI (Serial Quad Interface) is supported
if your application needs faster data rates.
This device also supports unlimited reads and writes to
the memory array.
The 23A1024/23LC1024 is available in standard
packages including 8-lead SOIC, PDIP and advanced
8-lead TSSOP.
Package Types (not to scale)
SOIC/TSSOP/PDIP
CS 1
SO/SIO1
SIO2
2
3
VSS 4
8 VCC
7 HOLD/SIO3
6 SCK
5 SI/SIO0
2012-2015 Microchip Technology Inc.
DS20005142C-page 1







23A1024 pdf, 数据表
23A1024/23LC1024
FIGURE 2-5:
SEQUENTIAL READ SEQUENCE (SPI MODE)
CS
SCK
SI
SO
0 1 2 3 4 5 6 7 8 9 10 11
29 30 31 32 33 34 35 36 37 38 39
Instruction
24-bit Address
0 0 0 0 0 0 1 1 23 22 21 20
210
Page X, Word Y
76543210
CS
SCK
SI
SO
Page X, Word 31
Page X+1, Word 0
Page X+1, Word 1
765432107654321076543210
CS
SCK
SI
SO
Page X+1, Word 31
76543210
Page X+n, Word 1
76543210
Page X+n, Word 31
76543210
DS20005142C-page 8
2012-2015 Microchip Technology Inc.







23A1024 equivalent, schematic
23A1024/23LC1024
4.2 Quad Interface Mode
In addition to the Serial Dual interface (SDI) mode of
operation Serial Quad Interface (SQI) is also
supported. In this mode the HOLD functionality is not
available. To enter SQI mode the EQIO command must
be clocked in (Figure 4-4).
FIGURE 4-4:
ENTER SQI MODE (EQIO) FROM SPI MODE
CS
SCK
01234567
FIGURE 4-5:
CS
SCK
SIO0
SI 0 0 1 1 1 0 0 0
High-Impedance
SO
BYTE READ MODE SQI
0 1 2 3 4 5 6 7 8 9 10 11
0 1 20 16 12 8 4 0
40
SIO1
0 1 21 17 13 9 5 1
51
SIO2
0 0 22 18 14 10 6 2
62
SIO3
0 0 23 19 15 11 7
Instruction
24-Bit Address
3 73
Dummy Byte Data Out
Note 1: Page and Sequential mode is similar in that additional bytes can be clocked out before CS is
brought high.
2: The first byte read after the address will be a dummy byte.
DS20005142C-page 16
2012-2015 Microchip Technology Inc.










页数 30 页
下载[ 23A1024.PDF 数据手册 ]


分享链接

Link :

推荐数据表

零件编号描述制造商
23A10241Mbit SPI Serial SRAMMicrochip
Microchip

零件编号描述制造商
STK15C88256-Kbit (32 K x 8) PowerStore nvSRAMCypress Semiconductor
Cypress Semiconductor
NJM4556DUAL HIGH CURRENT OPERATIONAL AMPLIFIERNew Japan Radio
New Japan Radio
EL1118-G5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLEREverlight
Everlight


DataSheet8.cn    |   2020   |  联系我们   |   搜索  |  Simemap