AT25640B-SSHL-B Atmel, AT25640B-SSHL-B Datasheet - Page 2
![IC EEPROM 64KBIT 20MHZ 8SOIC](/photos/6/50/65032/453-8-soic_sml.jpg)
AT25640B-SSHL-B
Manufacturer Part Number
AT25640B-SSHL-B
Description
IC EEPROM 64KBIT 20MHZ 8SOIC
Manufacturer
Atmel
Datasheet
1.AT25320B-SSHL-B.pdf
(26 pages)
Specifications of AT25640B-SSHL-B
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
64K (8K x 8)
Speed
5MHz, 10MHz, 20MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (3.9mm Width)
Density
64Kb
Interface Type
Serial (SPI)
Organization
8Kx8
Access Time (max)
80ns
Frequency (max)
5MHz
Write Protection
Yes
Data Retention
100Year
Operating Supply Voltage (typ)
2.5/3.3/5V
Operating Temp Range
-40C to 85C
Supply Current
10mA
Operating Supply Voltage (min)
1.8V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Memory Configuration
8192 X 8
Clock Frequency
20MHz
Supply Voltage Range
1.8V To 5.5V
Memory Case Style
SOIC
No. Of Pins
8
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT25640B-SSHL-B
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
1.
2
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.
Absolute Maximum Ratings*
Figure 1-1.
Operating Temperature ............................–55C to +125C
Storage Temperature ...............................–65C to +150C
Voltage on Any Pin
with Respect to Ground..............................–1.0V to +7.0V
Maximum Operating Voltage.................................... 6.25V
DC Output Current ................................................. 5.0 mA
Atmel AT25320B/640B
Block Diagram
*NOTICE:
Stresses beyond those listed under “Abso-
lute Maximum Ratings” may cause perma-
nent 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 con-
ditions for extended periods may affect
device reliability.
8535F–SEEPR–6/10