AT25640 ATMEL Corporation, AT25640 Datasheet

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AT25640

Manufacturer Part Number
AT25640
Description
Manufacturer
ATMEL Corporation
Datasheet

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Features
Description
The AT25080/160/320/640 provides 8192/16384/32768/65536 bits of serial electri-
cally-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
are essential. The AT25080/160/320/640 is available in space saving 8-pin PDIP, 8-
lead JEDEC SOIC, and 14-lead and 20-lead TSSOP packages.
Pin Configuration
Pin Name
CS
SCK
SI
SO
GND
VCC
WP
HOLD
NC
DC
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
Low-voltage and Standard-voltage Operation
3.0 MHz Clock Rate (5V)
32-byte Page Mode
Block Write Protection
Write Protect (WP) Pin and Write Disable Instructions for
both Hardware and Software Data Protection
Self-timed Write Cycle (5 ms Typical)
High-reliability
Automotive Grade and Extended Temperature Devices Available
8-pin PDIP, 8-lead JEDEC SOIC, and 14-lead and 20-lead TSSOP Packages
– 5.0 (V
– 2.7 (V
– 1.8 (V
– Protect 1/4, 1/2, or Entire Array
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
CC
CC
CC
Chip Select
Serial Data Input
Serial Data Output
Ground
Write Protect
Suspends Serial Input
No Connect
Don’t Connect
Function
Serial Data Clock
Power Supply
= 4.5V to 5.5V)
= 2.7V to 5.5V)
= 1.8V to 3.6V)
Note:
GND
WP
SO
GND
CS
WP
SO
NC
NC
NC
CS
14-lead TSSOP
8-pin PDIP
1
2
3
4
1
2
3
4
5
6
7
*Pins 3, 4 and 17, 18 are internally connected
for 14-lead TSSOP socket compatibility.
14
13
12
11
10
8
7
6
5
9
8
VCC
HOLD
NC
NC
NC
SCK
SI
VCC
HOLD
SCK
SI
GND
WP
SO
GND
CS
WP
NC
SO
SO
NC
NC
DC
NC
CS
20-lead TSSOP*
8-lead SOIC
1
2
3
4
1
2
3
4
5
6
7
8
9
10
(continued)
20
19
18
17
16
15
14
13
12
11
8
7
6
5
NC
VCC
HOLD
HOLD
NC
NC
SCK
SI
DC
NC
VCC
HOLD
SCK
SI
SPI Serial
EEPROMs
8K (1024 x 8)
16K (2048 x 8)
32K (4096 x 8)
64K (8192 x 8)
AT25080
AT25160
AT25320
AT25640
Rev. 0675F–08/01
1

Related parts for AT25640

AT25640 Summary of contents

Page 1

... NC 10 Note: *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 (continued) AT25640 8 VCC 7 HOLD 6 SCK VCC 18 HOLD 17 HOLD ...

Page 2

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 ...

Page 3

Pin Capacitance Applicable over recommended operating range from T Symbol Test Conditions C Output Capacitance (SO) OUT C Input Capacitance(CS, SCK, SI, WP, HOLD) IN Note: 1. This parameter is characterized and is not 100% tested. (1) DC Characteristics ...

Page 4

AC Characteristics Applicable over recommended operating range from TTL Gate and 100 pF (unless otherwise noted). Symbol Parameter f SCK Clock Frequency SCK t Input Rise Time RI t Input Fall Time FI t SCK High ...

Page 5

AC Characteristics (Continued) Applicable over recommended operating range from TTL Gate and 100 pF (unless otherwise noted). Symbol Parameter t Hold to Output Low Hold to Output High Output Disable ...

Page 6

Serial Interface MASTER: The device that generates the serial clock. Description SLAVE: Because the Serial Clock pin (SCK) is always an input, the AT25080/160/320/640 always operates as a slave. TRANSMITTER/RECEIVER: The AT25080/160/320/640 has separate pins designated for data transmission (SO) ...

Page 7

SPI Serial Interface 0675F–08/01 AT25080/160/320/640 7 ...

Page 8

Functional The AT25080/160/320/640 is designed to interface directly with the synchronous serial periph- eral interface (SPI) of the 6805 and 68HC11 series of microcontrollers. Description The AT25080/160/320/640 utilizes an 8-bit instruction register. The list of instructions and their operation codes ...

Page 9

... Protected Unprotected Blocks Blocks Protected Protected Protected Writable Protected Protected Protected Writable Protected Protected Protected Writable AT25640 None 1800 -1FFF 1000 -1FFF 0000 -1FFF Status Register Protected Writable Protected Protected Protected Writable 9 ...

Page 10

... CS is brought high. A new CS falling edge is required to re-initiate the serial communication. Table 6. Address Key Address Care Bits AT25080/160/320/640 10 AT25080 Don’ AT25160 AT25320 AT25640 0675F–08/01 ...

Page 11

Timing Diagrams Synchronous Data Timing (for Mode CSS V IH SCK HI WREN Timing WRDI Timing 0675F–08/ ...

Page 12

RDSR Timing CS 0 SCK SI HIGH IMPEDANCE SO WRSR Timing CS 0 SCK SI HIGH IMPEDANCE SO READ Timing SCK SI INSTRUCTION HIGH IMPEDANCE SO AT25080/160/320/640 INSTRUCTION ...

Page 13

WRITE Timing SCK INSTRUCTION SI HIGH IMPEDANCE SO HOLD Timing CS SCK 0675F–08/ ...

Page 14

AT25080 Ordering Information (max) I (max) I (max (ms) (µA) (µA) 5 5000 2.0 10 3000 0.5 20 3000 0.2 5 5000 2.0 10 3000 0.5 20 3000 0.2 8P3 8-pin, 0.300" Wide, Plastic Dual Inline ...

Page 15

AT25160 Ordering Information t (max) I (max) I (max (ms) (µA) (µA) 5 5000 2.0 10 3000 0.5 20 3000 0.2 5 5000 2.0 10 3000 0.5 20 3000 0.2 8P3 8-pin, 0.300" Wide, Plastic Dual Inline ...

Page 16

AT25320 Ordering Information t (max) I (max) I (max (ms) (µA) (µA) 5 5000 2.0 10 3000 0.5 5 5000 2.0 10 3000 0.5 8P3 8-pin, 0.300" Wide, Plastic Dual Inline Package (PDIP) 8S1 8-lead, 0.150" Wide, ...

Page 17

... AT25640 Ordering Information t (max) I (max) I (max (ms) (µA) (µA) 5 5000 2.0 10 3000 0.5 20 3000 0.2 5 5000 2.0 10 3000 0.5 20 3000 0.2 8P3 8-pin, 0.300" Wide, Plastic Dual Inline Package (PDIP) 8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC) 14T 14-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP) 20T 20-lead, 0.170" ...

Page 18

Packaging Information P3, 8-pin, 0.300" Wide, Plastic Dual Inline Package (PDIP) Dimensions in Inches and (Millimeters) JEDEC STANDARD MS-001 BA .400 (10.16) .355 (9.02) PIN 1 .300 (7.62) REF .210 (5.33) MAX .100 (2.54) BSC SEATING PLANE .150 (3.81) .115 ...

Page 19

... Atmel Corporation 2001. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...

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