ATMEL AT25040-10PC-2.7, AT25040-10PC-1.8, AT25040-10PC, AT25020-10SI-2.7, AT25020-10SI-1.8 Datasheet

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Features

Serial Peripheral Interface (SPI) Compatible

Supports SPI Modes 0(0,0) and 3(1,1)

Low-Voltage and Standard-Voltage Operation

5.0 (V CC = 4.5V to 5.5V)

2.7 (V CC = 2.7V to 5.5V)

1.8 (V CC = 1.8V to 3.6V)

2.1 MHz Clock Rate (5V) Compatibility

8-Byte Page Mode

Block Write Protection

Protect 1/4, 1/2, or Entire Array

Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software Data Protection

Self-Timed Write Cycle (10 ms Max)

High Reliability

Endurance: 1 Million Write Cycles

Data Retention: 100 Years

ESD Protection: >4000V

Automotive Grade and Extended Temperature Devices Available

8-Pin PDIP and JEDEC SOIC Packages

Description

The AT25010/020/040 provides 1024/2048/4096 bits of serial electrically erasable programmable read only memory (EEPROM) organized as 128/256/512 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. The AT25010/020/040 is available in space saving 8-pin PDIP and 8-pin JEDEC (SOIC) packages.

The AT25010/020/040 is enabled through the Chip Select pin (CS) and accessed via a 3-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and Serial Clock (SCK). All programming cycles are completely self-timed, and no separate ERASE cycle is required before WRITE.

BLOCK WRITE protection is enabled by programming the status register with one of four blocks of write protection. Separate program enable and program disable instructions are provided for additional data protection. Hardware data protection is provided via the WP pin to protect against inadvertent write attempts. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence.

Pin Configurations

 

Pin Name

Function

 

 

 

 

 

 

 

 

 

 

 

 

 

8-Pin PDIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chip Select

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CS

 

 

1

 

8

 

 

VCC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SO

 

 

2

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCK

Serial Data Clock

 

 

 

 

 

 

 

 

 

 

HOLD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WP

 

 

 

3

 

6

 

 

SCK

 

SI

Serial Data Input

 

 

 

GND

 

 

4

 

5

 

 

SI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SO

Serial Data Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

8-Pin SOIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC

Power Supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Write Protect

 

 

 

 

 

 

 

 

 

 

 

1

 

 

8

 

 

 

 

VCC

 

WP

 

 

 

 

 

CS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SO

 

 

2

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOLD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOLD

Suspends Serial Input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WP

 

 

 

 

3

 

 

6

 

 

 

 

SCK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

4

 

 

5

 

 

 

 

SI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPI Serial

EEPROMs

1K (128 x 8)

2K (256 x 8)

4K (512 x 8)

AT25010

AT25020

AT25040

Rev. 0606E–08/98

1

ATMEL AT25040-10PC-2.7, AT25040-10PC-1.8, AT25040-10PC, AT25020-10SI-2.7, AT25020-10SI-1.8 Datasheet

Absolute Maximum Ratings*

.................................Operating Temperature

-55°C to + 125°C

*NOTICE: Stresses beyond those listed under “Absolute

 

 

Maximum Ratings” may cause permanent dam-

Storage Temperature ....................................

-65°C to + 150°C

age to the device. This is a stress rating only and

 

 

functional operation of the device at these or any

Voltage on Any Pin

 

other conditions beyond those indicated in the

with Respect to Ground ....................................

-1.0V to + 7.0V

operational sections of this specification is not

Maximum Operating Voltage

6.25V

implied. Exposure to absolute maximum rating

conditions for extended periods may affect

DC Output Current

5.0 mA

device reliability.

 

 

 

 

Block Diagram

2 AT25010/020/040

AT25010/020/040

Pin Capacitance(1)

Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, V CC = +5.0V (unless otherwise noted).

 

 

Test Conditions

Max

Units

Conditions

 

 

 

 

 

 

COUT

 

Output Capacitance (SO)

8

pF

VOUT = 0V

CIN

 

Input Capacitance

 

SCK, SI,

 

 

 

 

6

pF

VIN = 0V

(CS,

WP,

HOLD)

Note:

1. This parameter is characterized and is not 100% tested.

 

 

 

DC Characteristics

Applicable over recommended operating range from: TAI = -40°C to +85°C, V CC = +1.8V to +5.5V, TAC = 0°C to +70°C, VCC = +1.8V to +5.5V (unless otherwise noted).

Symbol

Parameter

Test Condition

 

 

Min

 

Max

Units

 

 

 

 

 

 

 

 

 

 

 

(1)

Supply Voltage

 

 

 

 

1.8

 

5.5

V

VCC1

 

 

 

 

 

VCC2

Supply Voltage

 

 

 

 

2.7

 

5.5

V

VCC3

Supply Voltage

 

 

 

 

4.5

 

5.5

V

ICC1

Supply Current

VCC = 5.0V at 1 MHz, SO = Open

 

 

3.0

mA

ICC2

Supply Current

VCC = 5.0V at 2 MHz, SO = Open

 

 

6.0

mA

(1)

 

 

 

 

 

 

 

 

 

μA

Standby Current

VCC = 1.8V

 

CS = VCC

 

 

100

ISB1

 

 

 

ISB2

Standby Current

VCC = 2.7V

 

 

= VCC

 

 

100

μA

CS

 

 

ISB3

Standby Current

VCC = 5.0V

 

 

= VCC

 

 

100

μA

CS

 

 

IIL

Input Leakage

VIN = 0V to VCC

 

 

-0.6

 

3.0

μA

IOL

Output Leakage

VIN = 0V to VCC, TAC = 0°C to 70°C

-0.6

 

3.0

μA

V (2)

Input Low Voltage

 

 

 

 

-0.6

V

CC

x 0.3

V

IL

 

 

 

 

 

 

 

 

 

VIH(2)

Input High Voltage

 

 

 

 

VCC x 0.7

VCC + 0.5

V

VOL1

Output Low Voltage

4.5V VCC 5.5V

 

IOL = 2.0 mA

 

 

0.4

V

VOH1

Output High Voltage

 

 

IOH = -1.0 mA

VCC - 0.8

 

 

 

V

VOL2

Output Low Voltage

1.8V VCC 3.6V

 

IOL = 0.15 mA

 

 

0.2

V

VOH2

Output High Voltage

 

 

IOH = -100 μA

VCC - 0.2

 

 

 

V

Notes: 1. This parameter is preliminary and Atmel may change the specifications upon further characterization.

2. VIL min and VIH max are reference only and are not tested.

3

AC Characteristics

Applicable over recommended operating range from TA = -40°C to +85°C, V CC = As Specified, CL = 1 TTL Gate and 100 pF (unless otherwise noted).

Symbol

Parameter

Voltage

Min

Max

Units

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

0

2.1

 

fSCK

SCK Clock Frequency

2.7 - 5.5

0

2.1

MHz

 

 

 

 

 

1.8 - 3.6

0

0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

 

2

μs

tRI

Input Rise Time

2.7 - 5.5

 

2

 

 

 

 

 

1.8 - 3.6

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

 

2

μs

tFI

Input Fall Time

2.7 - 5.5

 

2

 

 

 

 

 

1.8 - 3.6

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

200

 

 

tWH

SCK High Time

2.7 - 5.5

200

 

ns

 

 

 

 

 

1.8 - 3.6

800

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

200

 

 

tWL

SCK Low Time

2.7 - 5.5

200

 

ns

 

 

 

 

 

1.8 - 3.6

800

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

250

 

 

tCS

 

CS

High Time

2.7 - 5.5

250

 

ns

 

 

 

 

 

1.8 - 3.6

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

250

 

 

tCSS

 

CS

Setup Time

2.7 - 5.5

250

 

ns

 

 

 

 

 

1.8 - 3.6

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

250

 

 

tCSH

 

CS

Hold Time

2.7 - 5.5

250

 

ns

 

 

 

 

 

1.8 - 3.6

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

50

 

 

tSU

Data In Setup Time

2.7 - 5.5

50

 

ns

 

 

 

 

 

1.8 - 3.6

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

50

 

 

tH

 

Data In Hold Time

2.7 - 5.5

100

 

ns

 

 

 

 

 

1.8 - 3.6

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

100

 

 

tHD

 

Hold

Setup Time

2.7 - 5.5

100

 

ns

 

 

 

 

 

1.8 - 3.6

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

200

 

 

tCD

 

Hold

Hold Time

2.7 - 5.5

200

 

ns

 

 

 

 

 

1.8 - 3.6

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

0

200

 

tV

Output Valid

2.7 - 5.5

0

400

ns

 

 

 

 

 

1.8 - 3.6

0

800

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

0

 

 

tHO

Output Hold Time

2.7 - 5.5

0

 

ns

 

 

 

 

 

1.8 - 3.6

0

 

 

 

 

 

 

 

 

 

 

 

4 AT25010/020/040

AT25010/020/040

AC Characteristics (Continued)

Applicable over recommended operating range from TA = -40°C to +85°C, V CC = As Specified, CL = 1 TTL Gate and 100 pF (unless otherwise noted).

Symbol

 

Parameter

 

Voltage

Min

Max

Units

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

0

100

 

tLZ

 

 

Hold

to Output Low Z

 

2.7 - 5.5

0

100

ns

 

 

 

 

 

 

1.8 - 3.6

0

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

 

100

 

tHZ

 

 

 

to Output High Z

 

2.7 - 5.5

 

100

ns

Hold

 

 

 

 

 

 

 

1.8 - 3.6

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

 

250

 

tDIS

 

Output Disable Time

 

2.7 - 5.5

 

500

ns

 

 

 

 

 

 

1.8 - 3.6

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

 

10

 

tWC

 

Write Cycle Time

 

2.7 - 5.5

 

 

ms

 

 

 

 

 

 

1.8 - 3.6

 

 

 

 

 

 

 

 

 

 

 

 

Endurance

 

 

5.0V, 25°C, Page Mode

 

 

1M

 

Write Cycles

 

 

 

 

 

 

 

 

Note: 1.

This parameter is characterized and is not 100% tested.

 

 

 

 

5

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