ATMEL AT25640T2-10TI, AT25640T2-10TC-2.7, AT25640T2-10TC-1.8, AT25640T2-10TC, AT25640T1-10TI-2.7 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

32-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 (5 ms Typical)

High Reliability

Endurance: 1 Million Write Cycles

Data Retention: 100 Years

ESD Protection: >4000V

Automotive Grade and Extended Temperature Devices Available

8-Pin PDIP, JEDEC SOIC, and 14-Pin and 20-Pin TSSOP Packages

Description

The AT25080/160/320/640 provides 8192/16384/32768/65536 bits of serial electrically erasable programmable read only memory (EEPROM) organized as 1024/2048/4096/8192 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation

(continued)

Pin Configuration

 

Pin Name

Function

 

 

 

 

 

 

 

 

 

 

 

Chip Select

 

CS

 

 

 

 

SCK

Serial Data Clock

 

 

 

 

SI

Serial Data Input

 

 

 

 

SO

Serial Data Output

 

 

 

 

GND

Ground

 

 

 

 

VCC

Power Supply

 

 

 

 

 

Write Protect

 

WP

 

 

 

 

 

 

 

 

 

Suspends Serial Input

 

HOLD

 

 

 

 

NC

No Connect

 

 

 

 

DC

Don’t Connect

 

 

 

 

 

 

 

 

 

 

 

 

8-Pin PDIP

 

 

 

 

 

 

 

8-Pin SOIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

8

 

VCC

 

 

 

 

 

1

8

 

VCC

 

 

CS

 

 

 

 

 

CS

 

 

 

 

 

 

 

 

SO

 

2

7

 

 

 

SO

 

2

7

 

 

 

 

 

 

 

 

HOLD

 

 

 

 

 

HOLD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WP

 

3

6

 

SCK

 

WP

 

3

6

 

SCK

 

 

 

 

GND

 

4

5

 

SI

GND

 

4

5

 

SI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14-Lead TSSOP

 

 

20-Lead TSSOP*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

14

 

VCC

 

NC

1

20

NC

 

 

CS

 

 

 

 

 

SO

 

2

13

 

 

 

 

 

 

 

2

19

VCC

 

 

 

 

HOLD

 

 

 

CS

 

 

NC

 

3

12

 

NC

 

SO

3

18

 

 

 

 

 

 

HOLD

 

 

NC

 

4

11

 

NC

 

SO

4

17

 

 

 

 

 

 

 

HOLD

 

NC

 

5

10

 

NC

 

NC

5

16

NC

 

 

6

9

 

SCK

 

NC

6

15

NC

 

WP

 

 

 

 

GND

 

7

8

 

SI

 

 

 

7

14

SCK

 

 

 

WP

 

 

 

 

 

 

 

 

 

 

 

GND

8

13

SI

 

 

 

 

 

 

 

 

 

 

 

 

DC

9

12

DC

 

 

 

 

 

 

 

 

 

 

 

 

NC

10

11

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Pins 3, 4 and 17, 18 are internally connected for 14-lead TSSOP socket compatibility.

SPI Serial

EEPROMs

8K (1024 x 8)

16K (2048 x 8)

32K (4096 x 8)

64K (8192 x 8)

AT25080

AT25160

AT25320

AT25640

Rev. 0675C–08/98

1

ATMEL AT25640T2-10TI, AT25640T2-10TC-2.7, AT25640T2-10TC-1.8, AT25640T2-10TC, AT25640T1-10TI-2.7 Datasheet

are essential. The AT25080/160/320/640 is available in space saving 8-pin PDIP, JEDEC SOIC, and 14-pin and 20-pin TSSOP packages.

The AT25080/160/320/640 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.

Absolute Maximum Ratings*

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

-55°C to +125°C

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

-65°C to +150°C

Voltage on Any Pin

 

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

-1.0V to +7.0V

Maximum Operating Voltage...........................................

6.25V

DC Output Current........................................................

5.0 mA

 

 

Block Diagram

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 to the status register. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence.

*NOTICE: Stresses beyond 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 these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

2 AT25080/160/320/640

AT25080/160/320/640

Pin Capacitance(1)

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

 

 

Test Conditions

Max

Units

Conditions

 

 

 

 

 

 

COUT

 

Output Capacitance (SO)

8

pF

VOUT = 0V

CIN

 

Input Capacitance(CS,

 

SCK, SI,

 

 

 

 

6

pF

VIN = 0V

 

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, VCC = +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

Typ

Max

Units

 

 

 

 

 

 

 

 

 

 

 

VCC1

Supply Voltage

 

 

 

 

 

1.8

 

3.6

V

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

 

 

 

5.0

mA

ISB1

 

VCC = 1.8V,

 

= VCC

 

 

 

 

μA

Standby Current

CS

 

 

 

0.1

ISB2

 

VCC = 2.7V,

 

= VCC

 

 

 

 

μA

Standby Current

CS

 

 

0.2

0.5

ISB3

 

VCC = 5.0V,

 

= VCC

 

 

 

 

μA

Standby Current

CS

 

 

0.5

2.0

IIL

Input Leakage

VIN = 0V to VCC

 

-3.0

 

3.0

μA

IOL

Output Leakage

VIN = 0V to VCC, TAC = 0°C to 70°C

 

-3.0

 

3.0

μA

VIL(1)

Input Low Voltage

 

 

 

 

 

-0.6

 

VCC x 0.3

V

VIH(1)

Input High Voltage

 

 

 

 

 

VCC x 0.7

 

VCC + 0.5

V

VOL1

Output Low Voltage

4.5V VCC 5.5V

IOL = 3.0 mA

 

 

0.4

V

VOH1

Output High Voltage

IOH = -1.6 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

 

 

 

 

 

Note: 1.

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, VCC = As Specified, CL = 1 TTL Gate and 100 pF (unless otherwise noted).

Symbol

Parameter

Voltage

Min

Max

Units

 

 

 

 

 

 

 

 

 

fSCK

 

 

 

 

4.5 - 5.5

0

2.1

 

 

SCK Clock Frequency

2.7 - 5.5

0

2.1

MHz

 

 

 

 

 

1.8 - 3.6

0

0.5

 

 

 

 

 

 

 

 

 

 

tRI

 

 

 

 

4.5 - 5.5

 

2

μs

 

Input Rise Time

2.7 - 5.5

 

2

 

 

 

 

 

1.8 - 3.6

 

2

 

 

 

 

 

 

 

 

 

 

tFI

 

 

 

 

4.5 - 5.5

 

2

μs

 

Input Fall Time

2.7 - 5.5

 

2

 

 

 

 

 

1.8 - 3.6

 

2

 

 

 

 

 

 

 

 

 

 

tWH

 

 

 

 

4.5 - 5.5

200

 

 

 

SCK High Time

2.7 - 5.5

200

 

ns

 

 

 

 

 

1.8 - 3.6

800

 

 

 

 

 

 

 

 

 

 

 

tWL

 

 

 

 

4.5 - 5.5

200

 

 

 

SCK Low Time

2.7 - 5.5

200

 

ns

 

 

 

 

 

1.8 - 3.6

800

 

 

 

 

 

 

 

 

 

 

 

tCS

 

 

 

 

4.5 - 5.5

250

 

 

 

CS

High Time

2.7 - 5.5

250

 

ns

 

 

 

 

 

1.8 - 3.6

1000

 

 

 

 

 

 

 

 

 

 

 

tCSS

 

 

 

 

4.5 - 5.5

250

 

 

 

CS

Setup Time

2.7 - 5.5

250

 

ns

 

 

 

 

 

1.8 - 3.6

1000

 

 

 

 

 

 

 

 

 

 

 

tCSH

 

 

 

 

4.5 - 5.5

250

 

 

 

CS

Hold Time

2.7 - 5.5

250

 

ns

 

 

 

 

 

1.8 - 3.6

1000

 

 

 

 

 

 

 

 

 

 

 

tSU

 

 

 

 

4.5 - 5.5

50

 

 

 

Data In Setup Time

2.7 - 5.5

50

 

ns

 

 

 

 

 

1.8 - 3.6

100

 

 

 

 

 

 

 

 

 

 

 

tH

 

 

 

 

4.5 - 5.5

50

 

 

 

Data In Hold Time

2.7 - 5.5

50

 

ns

 

 

 

 

 

1.8 - 3.6

100

 

 

 

 

 

 

 

 

 

 

 

tHD

 

 

 

 

4.5 - 5.5

100

 

 

 

Hold

Setup Time

2.7 - 5.5

100

 

 

 

 

 

 

 

1.8 - 3.6

400

 

 

 

 

 

 

 

 

 

 

 

tCD

 

 

 

 

4.5 - 5.5

200

 

 

 

Hold

Hold Time

2.7 - 5.5

200

 

ns

 

 

 

 

 

1.8 - 3.6

400

 

 

 

 

 

 

 

 

 

 

 

tV

 

 

 

 

4.5 - 5.5

0

200

 

 

Output Valid

2.7 - 5.5

0

200

ns

 

 

 

 

 

1.8 - 3.6

0

800

 

 

 

 

 

 

 

 

 

 

tHO

 

 

 

 

4.5 - 5.5

0

 

 

 

Output Hold Time

2.7 - 5.5

0

 

ns

 

 

 

 

 

1.8 - 3.6

0

 

 

 

 

 

 

 

 

 

 

 

4 AT25080/160/320/640

AT25080/160/320/640

AC Characteristics (Continued)

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

Symbol

Parameter

Voltage

Min

Max

Units

 

 

 

 

 

 

 

 

tLZ

 

 

 

4.5 - 5.5

0

100

 

 

Hold

to Output Low Z

2.7 - 5.5

0

100

ns

 

 

 

 

1.8 - 3.6

0

100

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

 

100

 

tHZ

 

Hold

to Output High Z

2.7 - 5.5

 

100

ns

 

 

 

 

1.8 - 3.6

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

 

250

 

tDIS

 

Output Disable Time

2.7 - 5.5

 

250

ns

 

 

 

 

1.8 - 3.6

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

4.5 - 5.5

 

5

 

tWC

 

Write Cycle Time

2.7 - 5.5

 

10

ms

 

 

 

 

1.8 - 3.6

 

20

 

 

 

 

 

 

 

 

Endurance(1)

 

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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