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AT25640B

Description
4K X 8 SPI BUS SERIAL EEPROM, PDSO8
Categorystorage   
File Size1MB,26 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Parametric Compare View All

AT25640B Overview

4K X 8 SPI BUS SERIAL EEPROM, PDSO8

AT25640B Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals8
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum supply/operating voltage5.5 V
Minimum supply/operating voltage1.8 V
Rated supply voltage2.5 V
maximum clock frequency20 MHz
Processing package description0.150 INCH, Green, Plastic, MS-012AA, SOIC-8
stateACTIVE
packaging shapeRectangle
Package SizeSMALL OUTLINE
surface mountYes
Terminal formGULL WING
Terminal spacing1.27 mm
terminal coatingNickel Palladium
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelINDUSTRIAL
memory width8
organize4K × 8
storage density32768 deg
operating modeSynchronize
Number of digits4096 words
Number of digits4K
Memory IC typebus serial electrically erasable read-only memory
serial parallelserial
Maximum TWC of write cycle5 ms
Features
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
– Datasheet Describes Mode 0 Operation
Low-voltage and Standard-voltage Operation
– 1.8 (V
CC
= 1.8V to 5.5V)
20MHz Clock Rate (5V)
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 (5ms max)
High Reliability
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
Green (Pb/Halide-free/RoHS Compliant) Packaging Options
Die Sales: Wafer Form, Tape and Reel, and Bumped Wafers
SPI Serial
EEPROMs
32K (4096 x 8)
64K (8192 x 8)
Atmel
AT25320B
AT25640B
Description
The Atmel
®
AT25320B/640B provides 32768-/65536-bits of serial electrically-erasable
programmable read-only memory (EEPROM) organized as 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 AT25320B/640B is
available in space-saving 8-lead JEDEC SOIC, 8-lead UDFN, 8-lead XDFN, 8-lead
TSSOP, and 8-ball VFBGA packages.
The AT25320B/640B is enabled through the Chip Select pin (CS) and accessed via a
three-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 sepa-
rate erase cycle is required before write.
Table 0-1.
Pin Name
CS
SCK
SI
SO
GND
VCC
WP
HOLD
Pin Configuration
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Write Protect
Suspends Serial Input
CS
SO
WP
GND
8-lead SOIC
1
2
3
4
8
7
6
5
8-lead TSSOP
V
CC
HOLD
SCK
SI
CS
SO
WP
GND
1
2
3
4
8
7
6
5
V
CC
HOLD
SCK
SI
8-lead UDFN
V
CC
8
HOLD
7
SCK
6
SI
5
1
CS
2
SO
3
WP
4
GND
8-lead XDFN
V
CC
8
HOLD
7
SCK
6
SI
5
1
CS
2
SO
3
WP
4
GND
Bottom View
8-ball VFBGA
V
CC
HOLD
SCK
SI
8
7
6
5
1
2
3
4
Bottom View
CS
SO
WP
GND
8535F–SEEPR–6/10
Bottom View

AT25640B Related Products

AT25640B AT25320B-CUL-T AT25320B-XHL-T AT25320B AT25320B_10 AT25640B-CUL-T AT25640B-MEHL-T
Description 4K X 8 SPI BUS SERIAL EEPROM, PDSO8 4K X 8 SPI BUS SERIAL EEPROM, PDSO8 4K X 8 SPI BUS SERIAL EEPROM, PDSO8 4K X 8 SPI BUS SERIAL EEPROM, PDSO8 4K X 8 SPI BUS SERIAL EEPROM, PDSO8 4K X 8 SPI BUS SERIAL EEPROM, PDSO8 4K X 8 SPI BUS SERIAL EEPROM, PDSO8
Number of functions 1 1 1 1 1 1 1
Number of terminals 8 8 8 8 8 8 8
Maximum operating temperature 85 Cel 85 °C 85 °C 85 Cel 85 Cel 85 °C 85 °C
Minimum operating temperature -40 Cel -40 °C -40 °C -40 Cel -40 Cel -40 °C -40 °C
surface mount Yes YES YES Yes Yes YES YES
Terminal form GULL WING BALL GULL WING GULL WING GULL WING BALL NO LEAD
Terminal location pair BOTTOM DUAL pair pair BOTTOM DUAL
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
memory width 8 8 8 8 8 8 8
organize 4K × 8 4KX8 4KX8 4K × 8 4K × 8 8KX8 8KX8
Is it Rohs certified? - conform to conform to - - conform to conform to
Parts packaging code - BGA TSSOP - - BGA DFN
package instruction - VFBGA, BGA8,2X4,30 TSOP1, TSSOP8,.25 - - VFBGA, BGA8,2X4,30 VSON, SOLCC8,.08,16
Contacts - 8 8 - - 8 8
Reach Compliance Code - compli compli - - compli compli
ECCN code - EAR99 EAR99 - - EAR99 EAR99
Maximum clock frequency (fCLK) - 20 MHz 20 MHz - - 20 MHz 20 MHz
Data retention time - minimum - 100 100 - - 100 100
Durability - 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles - - 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles
JESD-30 code - R-PBGA-B8 R-PDSO-G8 - - R-PBGA-B8 R-PDSO-N8
JESD-609 code - e1 e4 - - e1 e4
length - 3.73 mm 4.4 mm - - 3.73 mm 2.2 mm
memory density - 32768 bi 32768 bi - - 65536 bi 65536 bi
Memory IC Type - EEPROM EEPROM - - EEPROM EEPROM
word count - 4096 words 4096 words - - 8192 words 8192 words
character code - 4000 4000 - - 8000 8000
Operating mode - SYNCHRONOUS SYNCHRONOUS - - SYNCHRONOUS SYNCHRONOUS
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY - - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - VFBGA TSOP1 - - VFBGA VSON
Encapsulate equivalent code - BGA8,2X4,30 TSSOP8,.25 - - BGA8,2X4,30 SOLCC8,.08,16
Package shape - RECTANGULAR RECTANGULAR - - RECTANGULAR RECTANGULAR
Package form - GRID ARRAY, VERY THIN PROFILE, FINE PITCH SMALL OUTLINE, THIN PROFILE - - GRID ARRAY, VERY THIN PROFILE, FINE PITCH SMALL OUTLINE, VERY THIN PROFILE
Parallel/Serial - SERIAL SERIAL - - SERIAL SERIAL
power supply - 2/5 V 2/5 V - - 2/5 V 2/5 V
Certification status - Not Qualified Not Qualified - - Not Qualified Not Qualified
Maximum seat height - 1 mm 1.2 mm - - 1 mm 0.4 mm
Serial bus type - SPI SPI - - SPI SPI
Maximum standby current - 0.000006 A 0.000006 A - - 0.000006 A 0.000006 A
Maximum slew rate - 0.01 mA 0.01 mA - - 0.01 mA 0.01 mA
Maximum supply voltage (Vsup) - 5.5 V 5.5 V - - 5.5 V 5.5 V
Minimum supply voltage (Vsup) - 1.8 V 1.8 V - - 1.8 V 1.8 V
Nominal supply voltage (Vsup) - 2.5 V 2.5 V - - 2.5 V 2.5 V
technology - CMOS CMOS - - CMOS CMOS
Terminal surface - TIN SILVER COPPER Nickel/Palladium/Gold (Ni/Pd/Au) - - TIN SILVER COPPER NICKEL PALLADIUM GOLD
Terminal pitch - 0.75 mm 0.65 mm - - 0.75 mm 0.4 mm
width - 2.35 mm 3 mm - - 2.35 mm 1.8 mm
Maximum write cycle time (tWC) - 5 ms 5 ms - - 5 ms 5 ms
write protect - HARDWARE/SOFTWARE HARDWARE/SOFTWARE - - HARDWARE/SOFTWARE HARDWARE/SOFTWARE
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