AT25320B ATMEL [ATMEL Corporation], AT25320B Datasheet - Page 2

• Manufacturer Part Number: AT25320B
• Description: SPI Serial EEPROMs 32K (4096 x 8) 64K (8192 x 8)
• Manufacturer: ATMEL [ATMEL Corporation]

Absolute Maximum Ratings*
2
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
AT25320B/640B
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.
GND
WP
SO
CS
HOLD
VCC
SCK
SI
8-ball dBGA2
8-lead SOIC
1
2
3
4
8
7
6
5
Bottom View
8
7
6
5
1
2
3
4
CS
SO
WP
GND
VCC
HOLD
SCK
SI
8-lead Ultra Thin Mini-MAP (MLP 2x3)
8-lead Ultra Lead Fr ame
HOLD
Land Gr id Arr ay (ULA)
VCC
SCK
*NOTICE:
HOLD
VCC
SCK
SI
SI
8
7
6
5
Bottom View
Bottom View
8
7
6
5
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age 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.
1
2
3
4
1
2
3
4
CS
SO
WP
GND
CS
SO
WP
GND
8535B–SEEPR–7/08