Serial EEPROM. 25AA1024 Datasheet

25AA1024 EEPROM. Datasheet pdf. Equivalent

Part 25AA1024
Description 1 Mbit SPI Bus Serial EEPROM
Feature 25AA1024 1 Mbit SPI Bus Serial EEPROM Device Selection Table Part Number 25AA1024 VCC Range 1.8-.
Manufacture Microchip Technology
Datasheet
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25AA1024 1 Mbit SPI Bus Serial EEPROM Device Selection Tab 25AA1024 Datasheet
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25AA1024
25AA1024
1 Mbit SPI Bus Serial EEPROM
Device Selection Table
Part Number
25AA1024
VCC Range
1.8-5.5V
Page Size
256 Byte
Temp. Ranges
I
Packages
P, SM, MF
Features
• 20 MHz Maximum Clock Speed
• Byte and Page-level Write Operations:
- 256 byte page
- 6 ms maximum write cycle time
- No page or sector erase required
• Low-Power CMOS Technology:
- Maximum Write current: 7 mA at 5.5V
- Maximum Read current: 10 mA at 5.5V,
20 MHz
- Standby current: 1 µA at 2.5V, 85°C
(Deep Power-down)
• Electronic Signature for Device ID
• Self-Timed Erase and Write Cycles:
- Page Erase (6 ms maximum)
- Sector Erase (10 ms maximum)
- Chip Erase (10 ms maximum)
• 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
- Data Retention: >200 years
- ESD Protection: 4000V
• Temperature Ranges Supported:
- Industrial (I):-40°C to +85°C
• RoHS Compliant
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
Description
The Microchip Technology Inc. 25AA1024 is a
1024 Kbit serial EEPROM memory with byte-level and
page-level serial EEPROM functions. It also features
Page, Sector and Chip erase functions typically
associated with Flash-based products. 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,
transitions on its inputs will be ignored, with the
exception of Chip Select, allowing the host to service
higher priority interrupts.
The 25AA1024 is available in standard packages
including 8-lead PDIP and SOIJ, and advanced 8-lead
DFN package. All devices are RoHS compliant.
Package Types (not to scale)
CS 1
SO 2
WP 3
VSS 4
DFN
(MF)
PDIP/SOIJ
(P, SM)
8 VCC
CS 1
7 HOLD SO 2
6 SCK WP 3
8 VCC
7 HOLD
6 SCK
5 SI
VSS 4
5 SI
2007-2015 Microchip Technology Inc.
DS20001836J-page 1



25AA1024
25AA1024
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)*:
TA = 0°C to +85°C
Industrial (I):
TA = -40°C to +85°C
* Limited industrial temperature range.
VCC = 1.8V to 5.5V
VCC = 2.0V to 5.5V
Param.
No.
Sym.
Characteristic
D001
VIH1 High-level Input
Voltage
D002
D003
VIL1 Low-level Input
VIL2 Voltage
D004
D005
VOL Low-level Output
VOL Voltage
D006
VOH High-level Output
Voltage
D007
ILI Input Leakage
Current
D008
ILO Output Leakage
Current
D009
CINT
Internal Capacitance
(all inputs and
outputs)
D010 ICCREAD
Min.
0.7 VCC
-0.3
-0.3
VCC -0.2
Max.
VCC +1
0.3 VCC
0.2 VCC
0.4
0.2
±1
±1
7
10
Units
V
V
V
V
V
V
µA
µA
pF
mA
D011
Operating Current
ICCWRITE
D012
ICCS Standby Current
5 mA
7 mA
5 mA
12 A
D013
Note:
ICCSPD Deep Power-down
Current
1 µA
This parameter is periodically sampled and not 100% tested.
Test Conditions
VCC2.7V
VCC < 2.7V
IOL = 2.1 mA
IOL = 1.0 mA, VCC < 2.5V
IOH = -400 µA
CS = VCC, VIN = VSS or VCC
CS = VCC, VOUT = VSS or 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, 85°C
CS = VCC = 2.5V, Inputs tied to VCC or
VSS, 85°C
DS20001836J-page 2
2007-2015 Microchip Technology Inc.





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