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AT25320T1-10TC

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
1
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)
• 3.0 MHz 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 (5 ms Typical)
• High-reliability
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
• Automotive Grade and Extended Temperature Devices Available
• 8-pin PDIP, 8-lead JEDEC SOIC, and 14-lead and 20-lead TSSOP Packages
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.
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
Pin Configuration
Pin Name Function
CS
Chip Select
SCK Serial Data Clock
SI Serial Data Input
SO Serial Data Output
GND Ground
VCC Power Supply
WP
Write Protect
HOLD
Suspends Serial Input
NC No Connect
DC Don’t Connect
8-pin PDIP
1
2
3
4
8
7
6
5
CS
SO
WP
GND
VCC
HOLD
SCK
SI
8-lead SOIC
1
2
3
4
8
7
6
5
CS
SO
WP
GND
VCC
HOLD
SCK
SI
14-lead TSSOP
1
2
3
4
5
6
7
14
13
12
11
10
9
8
CS
SO
NC
NC
NC
WP
GND
VCC
HOLD
NC
NC
NC
SCK
SI
20-lead TSSOP*
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
CS
SO
SO
NC
NC
WP
GND
DC
NC
NC
VCC
HOLD
HOLD
NC
NC
SCK
SI
DC
NC
Note: *Pins 3, 4 and 17, 18 are internally connected
for 14-lead TSSOP socket compatibility.
(continued)
2
AT25080/160/320/640
0675F–08/01
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.
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 pro-
vided 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.
Block Diagram
Absolute Maximum Ratings*
Operating Temperature.................................. -55°C to +125°C
*NOTICE: 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.
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
3
AT25080/160/320/640
0675F–08/01
Pin Capacitance
(1)
Note: 1. This parameter is characterized and is not 100% tested.
DC Characteristics
(1)
Note: 1. V
IL
min and V
IH
max are reference only and are not tested.
Applicable over recommended operating range from T
A
= 25°C, f = 1.0 MHz, V
CC
= +5.0V (unless otherwise noted).
Symbol Test Conditions Max Units Conditions
C
OUT
Output Capacitance (SO) 8 pF V
OUT
= 0V
C
IN
Input Capacitance(CS, SCK, SI, WP, HOLD)6pFV
IN
= 0V
Applicable over recommended operating range from: T
AI
= -40°C to +85°C, V
CC
= +1.8V to +5.5V, T
AC
= 0°C to +70°C,
V
CC
= +1.8V to +5.5V (unless otherwise noted).
Symbol Parameter Test Condition Min Typ Max Units
V
CC1
Supply Voltage 1.8 3.6 V
V
CC2
Supply Voltage 2.7 5.5 V
V
CC3
Supply Voltage 4.5 5.5 V
I
CC1
Supply Current V
CC
= 5.0V at 1 MHz, SO = Open, Read 3.0 mA
I
CC2
Supply Current V
CC
= 5.0V at 2 MHz, SO = Open,
Read, Write
5.0 mA
I
SB1
Standby Current V
CC
= 1.8V, CS = V
CC
0.1 1.0 µA
I
SB2
Standby Current V
CC
= 2.7V, CS = V
CC
0.2 2.0 µA
I
SB3
Standby Current V
CC
= 5.0V, CS = V
CC
2.0 5.0 µA
I
IL
Input Leakage V
IN
= 0V to V
CC
-3.0 µA
I
OL
Output Leakage V
IN
= 0V to V
CC
, T
AC
= 0°C to 70°C-3.0 3.0µA
V
IL
(1)
Input Low-voltage -0.6 V
CC
x 0.3 V
V
IH
(1)
Input High-voltage V
CC
x 0.7 V
CC
+ 0.5 V
V
OL1
Output Low-voltage 4.5V ≤ V
CC
≤ 5.5V I
OL
= 3.0 mA 0.4 V
V
OH1
Output High-voltage I
OH
= -1.6 mA V
CC
- 0.8 V
V
OL2
Output Low-voltage 1.8V ≤ V
CC
≤ 3.6V I
OL
= 0.15 mA 0.2 V
V
OH2
Output High-voltage I
OH
= -100 µA V
CC
- 0.2 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

AT25320T1-10TC

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Description:
IC EEPROM 32K SPI 3MHZ 14TSSOP
Lifecycle:
New from this manufacturer.
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