25LC1024 Datasheet: 1 Mbit SPI Bus Serial EEPROM





25LC1024 1 Mbit SPI Bus Serial EEPROM Datasheet

Part Number 25LC1024
Description 1 Mbit SPI Bus Serial EEPROM
Manufacture Microchip Technology
Total Page 30 Pages
PDF Download Download 25LC1024 Datasheet PDF

Features: www.DataSheet4U.com 25AA1024/25LC1024 1 Mbit SPI Bus Serial EEPROM Device Sele ction Table Part Number 25LC1024 25AA10 24 VCC Range 2.5-5.5V 1.8-5.5V Page Siz e 256 Byte 256 Byte Temp. Ranges I,E I Packages P, SM, MF P, SM, MF Features: • 20 MHz max. Clock Speed • Byte a nd Page-level Write Operations: - 256 b yte page - 6 ms max. write cycle time - No page or sector erase required • L ow-Power CMOS Technology: - Max. Write current: 5 mA at 5.5V, 20 MHz - Read cu rrent: 7 mA at 5.5V, 20 MHz - Standby c urrent: 1μA at 2.5V (Deep power-down) • Electronic Signature for Device ID • Self-Timed Erase and Write Cycles: - Page Erase (6 ms max.) - Sector Erase (10 ms max.) - Chip Erase (10 ms max.) • Sector Write Protection (32K byte/ sector): - Protect none, 1/4, 1/2 or al l of array • Built-In Write Protectio n: - Power-on/off data protection circu itry - Write enable latch - Write-prote ct pin • High Reliability: - Enduranc e: 1M erase/write cycles • Temperature Ranges Supported: - Industrial (I): -40°C.

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25AA1024/25LC1024
1 Mbit SPI Bus Serial EEPROM
Device Selection Table
Part Number
25LC1024
25AA1024
VCC Range
2.5-5.5V
1.8-5.5V
Page Size
256 Byte
256 Byte
Features:
• 20 MHz max. Clock Speed
• Byte and Page-level Write Operations:
- 256 byte page
- 6 ms max. write cycle time
- No page or sector erase required
• Low-Power CMOS Technology:
- Max. Write current: 5 mA at 5.5V, 20 MHz
- Read current: 7 mA at 5.5V, 20 MHz
- Standby current: 1μA at 2.5V
(Deep power-down)
• Electronic Signature for Device ID
• Self-Timed Erase and Write Cycles:
- Page Erase (6 ms max.)
- Sector Erase (10 ms max.)
- Chip Erase (10 ms max.)
• Sector Write Protection (32K byte/sector):
- Protect none, 1/4, 1/2 or all of array
• Built-In Write Protection:
- Power-on/off data protection circuitry
- Write enable latch
- Write-protect pin
• High Reliability:
- Endurance: 1M erase/write cycles
• Temperature Ranges Supported:
- Industrial (I):
- Automotive (E):
-40°C to +85°C
-40°C to +125°C
• Pb-free packages available
Pin Function Table
Name
Function
CS
SO
WP
VSS
SI
SCK
HOLD
VCC
Chip Select Input
Serial Data Output
Write-Protect
Ground
Serial Data Input
Serial Clock Input
Hold Input
Supply Voltage
Temp. Ranges
I,E
I
Packages
P, SM, MF
P, SM, MF
Description:
The Microchip Technology Inc. 25AA1024/25LC1024
(25XX1024*) is a 1024 Kbit serial EEPROM memory
with byte-level and page-level serial EEPROM func-
tions. It also features Page, Sector and Chip erase
functions typically associated with Flash-based prod-
ucts. These functions are not required for byte or page
write operations. 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 by a Chip Select (CS) input.
Communication to the device can be paused via the
hold pin (HOLD). While the device is paused, transi-
tions on its inputs will be ignored, with the exception of
Chip Select, allowing the host to service higher priority
interrupts.
The 25XX1024 is available in standard packages
including 8-lead PDIP and SOIJ, and advanced 8-lead
DFN package. All devices are Pb-free.
Package Types (not to scale)
CS 1
SO 2
WP 3
VSS 4
DFN
(MF)
8 VCC
7 HOLD
6 SCK
5 SI
PDIP/SOIJ
(P, SM)
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
*25XX1024 is used in this document as a generic part number
for the 25AA1024, 25LC1024 devices.
© 2007 Microchip Technology Inc.
Preliminary
DS21836D-page 1

                    
                    






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