Flash Memory. AT25F4096 Datasheet

AT25F4096 Memory. Datasheet pdf. Equivalent


ATMEL Corporation AT25F4096
Features
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
– Datasheet describes Mode 0 Operation
33 MHz Clock Rate
Byte Mode and 256-byte Page Mode for Program Operations
Sector Architecture:
– Eight Sectors with 64K Bytes Each (4M)
– 256 Pages per Sector
Product Identification Mode
Low-voltage Operation
– 2.7 (VCC = 2.7V to 3.6V)
Sector Write Protection
– Protect 1/8, 1/4, 1/2 or Entire Array
Write Protect (WP) Pin and Write Disable Instructions for
both Hardware and Software Data Protection
Self-timed Program Cycle (30 µs/Byte Typical)
Self-timed Sector Erase Cycle (1 second/Sector Typical)
Single Cycle Reprogramming (Erase and Program) for Status Register
High Reliability
– Endurance: 10,000 Write Cycles Typical
– Data Retention: 20 Years
8-lead EIAJ SOIC and 8-lead Small Array Package (SAP)
Description
The AT25F4096 provides 4,194,304 bits of serial reprogrammable Flash memory
organized as 524,288 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 AT25F4096 is available in a space-saving 8-lead EIAJ SOIC and 8-
lead SAP packages.
Table 1. 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
8-lead EIAJ SOIC
CS
SO
WP
GND
1
2
3
4
8 VCC
7 HOLD
6 SCK
5 SI
8-lead SAP
__V_C_C_ 8
HOLD 7
SCK 6
___
1 CS
2 _S_O_
3 WP
SI 5
4 GND
Bottom View
4Mbit High
Speed SPI
Serial Flash
Memory
4M (524,288 x 8)
AT25F4096
2454G–SFLSH–5/06


AT25F4096 Datasheet
Recommendation AT25F4096 Datasheet
Part AT25F4096
Description 4Mbit High Speed SPI Serial Flash Memory
Feature AT25F4096; Features • Serial Peripheral Interface (SPI) Compatible • Supports SPI Modes 0 (0,0) and 3 (1,1) – D.
Manufacture ATMEL Corporation
Datasheet
Download AT25F4096 Datasheet




ATMEL Corporation AT25F4096
The AT25F4096 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 write cycles are completely self-timed.
Block Write protection for top 1/8, top 1/4, top 1/2 or the entire memory array is enabled
by programming the status register. Separate write enable and write 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*
Operating Temperature....................................–40°C to +85°C
Storage Temperature .....................................–65°C to +150°C
Voltage on Any Pin
with Respect to Ground .................................... –1.0V to +5.0V
Maximum Operating Voltage ............................................ 4.2V
DC Output Current........................................................ 5.0 mA
*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.
Figure 1. Block Diagram
524,288 x 8
2 AT25F4096
2454G–SFLSH–5/06



ATMEL Corporation AT25F4096
AT25F4096
Table 2. Pin Capacitance(1)
Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +3.6V (unless otherwise noted)
Symbol Test Conditions
Max
Units
Conditions
COUT
CIN
Note:
Output Capacitance (SO)
Input Capacitance (CS, SCK, SI, WP, HOLD)
1. This parameter is characterized and is not 100% tested.
8 pF VOUT = 0V
6 pF VIN = 0V
Table 3. DC Characteristics (Preliminary – Subject to Change)
Applicable over recommended operating range from: TAI = 40°C to +85°C, VCC = +2.7V to +3.6V,
TAC = 0°C to +70°C, VCC = +2.7V to +3.6V (unless otherwise noted)
Symbol Parameter
Test Condition
Min Typ
Max
VCC
ICC1
ICC2
ISB
IIL
IOL
VIL(1)
VIH(1)
VOL
VOH
Note:
Supply Voltage
Supply Current
Supply Current
Standby Current
Input Leakage
Output Leakage
Input Low Voltage
VCC = 3.6V at 33 MHz, SO = Open Read
VCC = 3.6V at 33 MHz, SO = Open Write
VCC = 2.7V, CS = VCC
VIN = 0V to VCC
VIN = 0V to VCC, TAC = 0°C to 70°C
Input High Voltage
Output Low Voltage 2.7V VCC 3.6V
IOL = 0.15 mA
Output High Voltage
IOH = -100 µA
1. VIL and VIH max are reference only and are not tested.
2.7
-3.0
-3.0
-0.6
VCC x 0.7
VCC - 0.2
10.0
15.0
2.0
3.6
17.0
45.0
10.0
3.0
3.0
VCC x 0.3
VCC + 0.5
0.2
Units
V
mA
mA
µA
µA
µA
V
V
V
V
2454G–SFLSH–5/06
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