Serial EEPROM. 25AA128 Datasheet

25AA128 EEPROM. Datasheet pdf. Equivalent

Part 25AA128
Description 128K SPI Bus Serial EEPROM
Feature www.DataSheet4U.com 25AA128/25LC128 128K SPI Bus Serial EEPROM Device Selection Table Part Number 2.
Manufacture Microchip Technology
Datasheet
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25AA128
www.DataSheet4U.com
25AA128/25LC128
128K SPI Bus Serial EEPROM
Device Selection Table
Part Number
25LC128
25AA128
VCC Range
2.5-5.5V
1.8-5.5V
Page Size
64 Byte
64 Byte
Features
• Max. Clock 10 MHz
• Low-power CMOS Technology
- Max. Write Current: 5 mA at 5.5V, 10 MHz
- Read Current: 5 mA at 5.5V, 10 MHz
- Standby Current: 5 μA at 5.5V
• 16,384 x 8-bit Organization
• 64 Byte Page
• Self-timed Erase and Write Cycles (5 ms max.)
• Block Write Protection
- 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
• Sequential Read
• High Reliability
- Endurance: 1,000,000 erase/write cycles
- Data retention: > 200 years
- ESD protection: > 4000V
• Temperature Ranges Supported;
- Industrial (I):
- Automotive (E):
-40°C to +85°C
-40°C to +125°C
• Standard and 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, SN, ST, MF
P, SN, ST, MF
Description
The Microchip Technology Inc. 25AA128/25LC128
(25XX128*) are 128k-bit Serial Electrically Erasable
PROMs. The memory is accessed via a simple Serial
Peripheral Interface (SPI) compatible serial bus. The
bus signals required are a clock input (SCK) plus sep-
arate data in (SI) and data out (SO) lines. Access to the
device is controlled through 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 25XX128 is available in standard packages
including 8-lead PDIP and SOIC, and advanced
packaging including 8-lead DFN and 8-lead TSSOP.
Pb-free (Pure Sn) finish is also available.
Package Types (not to scale)
TSSOP
(ST)
PDIP/SOIC
(P, SN)
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6
5
SCK
SI
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
DFN
(MF)
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
* 25XX128 is used in this document as a generic part number for the 25AA128, 25LC128 devices.
© 2007 Microchip Technology Inc.
DS21831C-page 1



25AA128
25AA128/25LC128
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 = -40°C to +85°C
Automotive (E): TA = -40°C to +125°C
VCC = 1.8V to 5.5V
VCC = 2.5V to 5.5V
Param.
No.
Sym.
Characteristic
Min.
Max. Units
Test Conditions
D001
D002
D003
D004
D005
D006
D007
D008
D009
D010
VIH1 High-level input
voltage
VIL1 Low-level input
VIL2 voltage
VOL Low-level output
VOL voltage
VOH High-level output
voltage
ILI Input leakage current
ILO Output leakage
current
CINT
Internal Capacitance
(all inputs and
outputs)
ICC Read
Operating Current
.7 VCC
-0.3
-0.3
VCC -0.5
VCC+1
0.3VCC
0.2VCC
0.4
0.2
±1
±1
7
5
2.5
V
V
V
V
V
V
μA
μA
pF
mA
mA
D011 ICC Write
— 5 mA
— 3 mA
D012 ICCS
— 5 μA
Standby Current
1 μA
Note: This parameter is periodically sampled and not 100% tested.
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 = 10.0 MHz;
SO = Open
VCC = 2.5V; FCLK = 5.0 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
DS21831C-page 2
© 2007 Microchip Technology Inc.





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