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25AA010A/25LC010A

1K SPI Bus Serial EEPROM

Device Selection Table

Part Number

25AA010A

25LC010A

Range

1.8-5.5V

2.5-5.5V

Page Size

16 Bytes

Temp. Ranges

I, E

Packages

P, MS, SN, ST, MC, OT

Features:

• 10 MHz max. clock frequency

• 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

• 128 x 8-bit organization

• Write Page mode (up to 16 bytes)

• Sequential Read

• 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

• High reliability:

- Endurance: 1,000,000 Erase/Write cycles

- Data retention: > 200 years

- ESD protection: > 4000V

• Temperature ranges supported:

- Industrial (I):

-40°C to +85°C

- Automotive (E):

-40°C to +125°C

• Pb-Free packages available

Description:

The Microchip Technology Inc. 25XX010A* is a 1 Kbit

Serial Electrically Erasable Programmable Read-Only

Memory (EEPROM). 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.

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 25XX010A is available in standard packages

including 8-lead PDIP and SOIC, and advanced

packages including 8-lead MSOP, 8-lead TSSOP and

rotated TSSOP, 8-lead 2x3 DFN, and 6-lead SOT-23.

Package Types (not to scale)

TSSOP/MSOP

(ST, MS)

PDIP/SOIC

(P, SN)

HOLD

SCK

HOLD

SCK

Pin Function Table

Name

SCK

HOLD

Function

Chip Select Input

Serial Data Output

Write-Protect

Ground

Serial Data Input

Serial Clock Input

Hold Input

Supply Voltage

SCK

SOT-23

(OT)

DFN

(MC)

CS 1

SO 2

WP 3

8 V

7 HOLD

6 SCK

5 SI

X-Rotated TSSOP

(X/ST)

HOLD

SCK

*25XX010A is used in this document as a generic part number for the

25AA010A and the 25LC010A.

2006 Microchip Technology Inc.

Preliminary

DS21832C-page 1

25AA010A/25LC010A

1.0

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings

(†)

.............................................................................................................................................................................6.5V

All inputs and outputs w.r.t. V

......................................................................................................... -0.6V to V

+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

Industrial (I):

Automotive (E):

Min.

0.7 V

-0.3

—

-0.5

—

= -40°C to +85°C

= -40°C to +125°C

Max.

0.3 V

0.2 V

0.4

0.2

—

±1

Units

μA

≥

2.7V

(Note)

< 2.7V

(Note)

= 2.1 mA

= 1.0 mA, V

< 2.5V

= -400

μA

CS = V

, V

= V

SS TO

CS = V

, V

OUT

= V

SS TO

= 25°C, CLK = 1.0 MHz,

= 5.0V

(Note)

= 5.5V; F

CLK

= 10.0 MHz;

SO = Open

= 2.5V; F

CLK

= 5.0 MHz;

SO = Open

= 5.5V

= 2.5V

CS = V

= 5.5V, Inputs tied to V

, T

= +125°C

CS = V

= 2.5V, Inputs tied to V

, T

= +85°C

= 1.8V to 5.5V

= 2.5V to 5.5V

Test Conditions

DC CHARACTERISTICS

Param.

No.

D001

D002

D003

D004

D005

D006

D007

D008

D009

Sym.

IH1

IL1

IL2

INT

Characteristic

High-level Input

Voltage

Low-level Input

Voltage

Low-level Output

Voltage

High-level Output

Voltage

Input Leakage

Current

Output Leakage

Current

Internal Capacitance

(all inputs and

outputs)

D010

Read

Operating Current

—

Standby Current

—

2.5

μA

D011

D012

Write

CCS

Note:

This parameter is periodically sampled and not 100% tested.

DS21832C-page 2

Preliminary

2006 Microchip Technology Inc.

25AA010A/25LC010A

TABLE 1-2:

AC CHARACTERISTICS

Industrial (I):

Automotive (E):

Min.

—

100

150

100

200

250

—

0.05

0.1

0.15

0.05

0.1

0.15

—

= -40°C to +85°C

= -40°C to +125°C

Units

MHz

μs

= 1.8V to 5.5V

= 2.5V to 5.5V

Test Conditions

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

—

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

(Note 1)

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

—

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

(Note 1)

4.5V

≤

5.5V

(Note 1)

2.5V

≤

4.5V

(Note 1)

1.8V

≤

2.5V

(Note 1)

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

AC CHARACTERISTICS

Param.

Sym.

No.

CLK

Characteristic

Clock Frequency

Max.

—

1000

—

100

160

—

160

—

CSS

CS Setup Time

CSH

CS Hold Time

CSD

Tsu

CS Disable Time

Data Setup Time

Data Hold Time

CLK Rise Time

CLK Fall Time

Clock High Time

Clock Low Time

CLD

CLE

Clock Delay Time

Clock Enable Time

Output Valid from Clock

Low

Output Hold Time

Output Disable Time

DIS

HOLD Setup Time

Note 1:

This parameter is periodically sampled and not 100% tested.

This parameter is not tested but ensured by characterization. For endurance estimates in a specific

application, please consult the Total Endurance™ Model which can be obtained from our web site:

www.microchip.com.

begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle

is complete.

2006 Microchip Technology Inc.

Preliminary

DS21832C-page 3

25AA010A/25LC010A

TABLE 1-2:

AC CHARACTERISTICS (CONTINUED)

Industrial (I):

Automotive (E):

Min.

160

—

= -40°C to +85°C

= -40°C to +125°C

Units

= 1.8V to 5.5V

= 2.5V to 5.5V

Test Conditions

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

4.5V

≤

5.5V

(Note 1)

2.5V

≤

4.5V

(Note 1)

1.8V

≤

2.5V

(Note 1)

4.5V

≤

5.5V

2.5V

≤

4.5V

1.8V

≤

2.5V

OTE

AC CHARACTERISTICS

Param.

Sym.

No.

Characteristic

HOLD Hold Time

Max.

—

HOLD Low to Output

High-Z

HOLD High to Output

Valid

Internal Write Cycle Time

(byte or page)

Endurance

—

E/W

OTE

Cycles

Note 1:

This parameter is periodically sampled and not 100% tested.

This parameter is not tested but ensured by characterization. For endurance estimates in a specific

application, please consult the Total Endurance™ Model which can be obtained from our web site:

www.microchip.com.

begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle

is complete.

TABLE 1-3:

AC Waveform:

= 0.2V

AC TEST CONDITIONS

—

(Note 1)

(Note 2)

—

0.5 V

= V

- 0.2V

= 4.0V

= 100 pF

Timing Measurement Reference Level

Input

Output

Note 1:

For V

≤

4.0V

For V

4.0V

DS21832C-page 4

Preliminary

2006 Microchip Technology Inc.

25AA010A/25LC010A

FIGURE 1-1:

SCK

n+2

n+1

high-impedance

n-1

HOLD TIMING

don’t care

HOLD

n+2

n+1

FIGURE 1-2:

SERIAL INPUT TIMING

Mode 1,1

SCK Mode 0,0

LSB in

MSB in

high-impedance

FIGURE 1-3:

SERIAL OUTPUT TIMING

SCK

MSB out

ISB out

Mode 1,1

Mode 0,0

don’t care

2006 Microchip Technology Inc.

Preliminary

DS21832C-page 5