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AT25128N-10SI

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
1
8-pin SOIC
CS
SCK
SO
WP
HOLD
GND
VCC
1
2
3
4
8
7
6
5
SI
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 MHz Clock Rate
• 64-byte Page Mode and Byte Write Operation
• 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: 100,000 Write Cycles
– Data Retention: >200 Years
– ESD Protection: >4000V
• Automotive Grade and Extended Temperature Devices Available
• 8-pin PDIP, 8-pin EIAJ SOIC, 8-pin and 16-pin JEDEC SOIC, 14-pin and 20-pin TSSOP,
and 8-pin Leadless Array Packages
Description
The AT25128/256 provides 131,072/262,144 bits of serial electrically-erasable pro-
grammable read only memory (EEPROM) organized as 16,384/32,768 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 devices are available
Rev. 0872F–09/99
*Note: Pins 3, 4 and 17, 18 are internally connected for 14-lead TSSOP socket compatibility.
SPI Serial
EEPROMs
128K (16,384 x 8)
256K (32,768 x 8)
AT25128
AT25256
Pin Configurations
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
(continued)
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
8-pin PDIP
CS
SCK
SO
WP
HOLD
GND
VCC
1
2
3
4
8
7
6
5
SI
16-pin SOIC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CS
SO
NC
NC
NC
NC
WP
GND
VCC
HOLD
NC
NC
NC
NC
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
8-pin Leadless Array
Bottom View
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI
CS
SO
WP
GND
AT25128/256
2
in space saving 8-pin PDIP (AT25128/256), 8-pin EIAJ
SOIC (AT25128/256), 8-pin and 16-pin JEDEC SOIC
(AT25128), 14-pin TSSOP (AT25128), 20-pin TSSOP
(AT25128/256), and 8-pin Leadless Array (AT25128/256)
packages. In addition, the entire family is available in 5.0V
(4.5V to 5.5V), 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V)
versions.
The AT25128/256 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 top ¼, top ½ or entire array of write pro-
tection. Separate program enable and program disable
instructions are provided for additional data protection.
Hardware data protection is provided via the WP
pin to pro-
tect against inadvertent write attempts to the status regis-
ter. 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 Maxi-
mum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions beyond those indicated in the operational sec-
tions 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
16384/32768 x 8
AT25128/256
3
Note: 1. This parameter is characterized and is not 100% tested.
Note: 1. V
IL
and V
IH
max are reference only and are not tested.
Pin Capacitance
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
DC Characteristics
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 2.0 3.0 mA
I
CC2
Supply Current
V
CC
= 5.0V at 2 MHz,
SO = Open, Read, Write
3.0 5.0 mA
I
SB1
Standby Current V
CC
= 1.8V, CS = V
CC
0.1 2.0 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 3.0 µA
I
OL
Output Leakage V
IN
= 0V to V
CC
, T
AC
= 0°C to 70°C -3.0 3.0 µA
V
IL
(1)
Input Low-voltage -1.0 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
4.5 ≤ 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-P18

AT25128N-10SI

Mfr. #:
Buy AT25128N-10SI
Manufacturer:
Microchip Technology / Atmel
Description:
EEPROM SO-8 128K (16KX8) 5V
Lifecycle:
New from this manufacturer.
Delivery:
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