23A1024_15 Datasheet, PDF (1/32 Pages) Microchip Technology – 1Mbit SPI Serial SRAM with SDI and SQI Interface

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):
-40C to +85C
- Automotive (E): -40C to +125C
• 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 2
SIO2 3
VSS 4
8 VCC
7 HOLD/SIO3
6 SCK
5 SI/SIO0
 2012-2015 Microchip Technology Inc.
DS20005142C-page 1