Serial EEPROM. 25LC1024 Datasheet

25LC1024 EEPROM. Datasheet pdf. Equivalent

Part 25LC1024
Description 1 Mbit SPI Bus Serial EEPROM
Feature www.DataSheet4U.com 25AA1024/25LC1024 1 Mbit SPI Bus Serial EEPROM Device Selection Table Part Numb.
Manufacture Microchip Technology
Datasheet
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25LC1024
www.DataSheet4U.com
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



25LC1024
25AA1024/25LC1024
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings (†)
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ......................................................................................................... -0.6V to VCC +1.0V
Storage temperature .................................................................................................................................-65°C to 150°C
Ambient temperature under bias ...............................................................................................................-40°C to 125°C
ESD protection on all pins ..........................................................................................................................................4 kV
NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for an
extended period of time may affect device reliability.
TABLE 1-1: DC CHARACTERISTICS
DC CHARACTERISTICS
Industrial (I):
Industrial (I):
Automotive (E):
TA = -0°C to +85°C
TA = -40°C to +85°C
TA = -40°C to +125°C
VCC = 1.8V to 5.5V
VCC = 2.0V to 5.5V
VCC = 2.5V to 5.5V
Param.
No.
Sym.
Characteristic
D001 VIH1
D002
D003
D004
D005
D006
VIL1
VIL2
VOL
VOL
VOH
High-level input
voltage
Low-level input
voltage
Low-level output
voltage
High-level output
voltage
D007 ILI
Input leakage current
D008 ILO
Output leakage
current
D009
D010
CINT
Internal capacitance
(all inputs and
outputs)
ICC Read
Operating current
Min.
.7 VCC
-0.3
-0.3
VCC -0.5
Max.
VCC +1
0.3 VCC
0.2 VCC
0.4
0.2
±1
±1
7
10
5
Units
V
V
V
V
V
V
μA
μA
pF
mA
mA
D011 ICC Write
D012 ICCS
Standby current
— 7 mA
— 5 mA
— 20 μA
12 μA
D13 ICCSPD Deep power-down
current
1 μA
2 μA
Note: This parameter is periodically sampled and not 100% tested.
Test Conditions
VCC 2.7V
VCC < 2.7V
IOL = 2.1 mA
IOL = 1.0 mA, VCC < 2.5V
IOH = -400 μA
CS = VCC, VIN = VSS TO VCC
CS = VCC, VOUT = VSS TO VCC
TA = 25°C, CLK = 1.0 MHz,
VCC = 5.0V (Note)
VCC = 5.5V; FCLK = 20.0 MHz;
SO = Open
VCC = 2.5V; FCLK = 10.0 MHz;
SO = Open
VCC = 5.5V
VCC = 2.5V
CS = VCC = 5.5V, Inputs tied to VCC or
VSS, 125°C
CS = VCC = 5.5V, Inputs tied to VCC or
VSS, 85°C
CS = VCC = 2.5V, Inputs tied to VCC or
VSS, 85°C
CS = VCC = 5.5V, Inputs tied to VCC or
VSS, 125°C
DS21836D-page 2
Preliminary
© 2007 Microchip Technology Inc.





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