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23LCV1024 fiches techniques PDF

Microchip - 1 Mbit SPI Serial SRAM

Numéro de référence 23LCV1024
Description 1 Mbit SPI Serial SRAM
Fabricant Microchip 
Logo Microchip 





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23LCV1024 fiche technique
23LCV1024
1 Mbit SPI Serial SRAM with Battery Backup and SDI Interface
Device Selection Table
Part
Number
VCC Range
23LCV1024
2.5-5.5V
Dual I/O
(SDI)
Yes
Features:
• SPI-Compatible Bus Interface:
- 20 MHz Clock rate
- SPI/SDI mode
• 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
• External Battery Backup Support
• Zero Write Time
• 128K x 8-bit Organization:
- 32-byte page
• Byte, Page and Sequential mode for Reads and
Writes
• High Reliability
• Temperature Range Supported:
- Industrial (I):
-40C to +85C
• Pb-Free and RoHS Compliant, Halogen Free
• 8-Lead SOIC, TSSOP and PDIP Packages
Pin Function Table
Name
Function
CS
SO/SIO1
Vss
SI/SIO0
SCK
VBAT
Vcc
Chip Select Input
Serial Output/SDI Pin
Ground
Serial Input/SDI Pin
Serial Clock
External Backup Supply Input
Power Supply
Battery
Backup
Yes
Max. Clock
Frequency
20 MHz
Packages
SN, ST, P
Description:
The Microchip Technology Inc. 23LCV1024 is a 1 Mbit
Serial SRAM device. The memory is accessed via a
simple Serial Peripheral Interface (SPI) compatible
serial bus. The bus signals required are a clock input
(SCK) plus separate data in (SI) and data out (SO)
lines. Access to the device is controlled through a Chip
Select (CS) input. Additionally, SDI (Serial Dual Inter-
face) is supported if your application needs faster data
rates.
This device also supports unlimited reads and writes to
the memory array, and supports data backup via an
external battery/coin cell connected to VBAT (pin 7).
The 23LCV1024 is available in standard packages
including 8-lead SOIC, PDIP and advanced 8-lead
TSSOP.
Package Types (not to scale)
SOIC/TSSOP/PDIP
CS
SO/SIO1
NC
Vss
1
2
3
4
8 Vcc
7 VBAT
6 SCK
5 SI/SIO0
2012 Microchip Technology Inc.
Preliminary
DS25156A-page 1
Free Datasheet http://www.datasheet4u.com/

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