http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf



Atmel Electronic Components Datasheet

AT24C04B Datasheet

2-Wire Automotive Temperature Serial EEPROM

No Preview Available !

AT24C04B pdf
NOT RECOMMENDED
FOR NEW DESIGNS
Replaced by
AT24C01C,
AT24C02C,
AT24C04C,
or AT24C08C
AT24C01B, AT24C02B
AT24C04B, AT24C08B
2-Wire Automotive Temperature Serial EEPROM
1K (128 x 8), 2K (256 x 8), 4K (512 x 8), or 8K (1,024 x 8)
Features
DATASHEET
Medium-voltage and Standard-voltage Operation
̶ 2.5V (VCC = 2.5V to 5.5V)
Automotive Temperature Range –40C to 125C
Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K), or 1,024 x 8 (8K)
2-Wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
400kHz (2.5V) Compatibility
Write Protect Pin for Hardware Data Protection
8-byte Page (1K, 2K) or 16-byte Page (4K, 8K) Write Modes
Partial Page Writes are Allowed
Self-timed Write Cycle (5ms max)
High-reliability
̶ Endurance: 1,000,000 Write Cycles
̶ Data Retention: 100 Years
8-lead JEDEC SOIC and 8-lead TSSOP Packages
Description
The AT24C01B/02B/04B/08B Automotive provides 1,024/2,048/4,096/8,192 bits
of Serial Electrically Erasable and Programmable Read-only Memory (EEPROM)
organized as 128/256/512/1,024 words of 8 bits each. The device is optimized for
use in many automotive applications where low-power and low-voltage operation
are essential. The AT24C01B/02B/04B/08B Automotive is available in space-
saving 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a
2-wire serial interface. In addition, the entire family operates at voltages from 2.5V
to 5.5V.
Atmel-8517D-SEEPROM-AT24C01B-02B-04B-08B-Auto-Datasheet_082014



Atmel Electronic Components Datasheet

AT24C04B Datasheet

2-Wire Automotive Temperature Serial EEPROM

No Preview Available !

AT24C04B pdf
1. Pin Configurations and Pinouts
Table 1-1. Pin Configurations
Pin Name
A0 A2
GND
SDA
SCL
WP
VCC
Function
Address Inputs
Ground
Serial Data
Serial Clock Input
Write Protect
Power Supply
8-lead SOIC
(Top View)
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
A0
A1
A2
GND
8-lead TSSOP
(Top View)
18
27
36
45
VCC
WP
SCL
SDA
Note: Drawings are not to scale.
2. Absolute Maximum Ratings*
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
*Notice: Stresses beyond those listed under “Absolute
Maximum 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 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.
3. Block Diagram
Figure 3-1. Block Diagram
VCC
GND
WP
SCL
SDA
A2
A1
A0
Start
Stop
Logic
LOAD
Device
Address
Comparator
R/W
Serial
Control
Logic
COMP
LOAD INC
Data Word
ADDR/Counter
EN H.V. Pump/Timing
Data Recovery
EEPROM
DIN
DOUT
Y DEC
Serial MUX
DOUT/ACK
Logic
2 AT24C01B/02B/04B/08B Automotive [DATASHEET]
Atmel-8517D-SEEPROM-AT24C01B-02B-04B-08B-Auto-Datasheet_082014



Atmel Electronic Components Datasheet

AT24C04B Datasheet

2-Wire Automotive Temperature Serial EEPROM

No Preview Available !

AT24C04B pdf
4. Pin Description
Serial Clock (SCL): The SCL input is used to positive edge clock data into each EEPROM device and negative
edge clock data out of each device.
Serial Data (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open-drain driven and may
be wire-ORed with any number of other open-drain or open-collector devices.
Device/Page Addresses (A2, A1, and A0): The A2, A1, and A0 pins are device address inputs which are hard
wired for the AT24C01B/02B/04B/08B Automotive. As many as eight 1K/2K devices may be addressed on a
single bus system (device addressing is discussed in detail under the Device Addressing section). The
AT24C04B uses the A2 and A1 inputs for hardwire addressing and a total of four 4K devices may be addressed
on a single bus system. The A0 pin is a no connect.
The AT24C08B only uses the A2 input for hardwire addressing and a total of two 8K devices may be addressed
on a single bus system. The A0 and A1 pins are no connect.
Write Protect (WP): The AT24C01B/02B/04B/08B has a Write Protect pin which provides hardware data
protection. The Write Protect pin allows normal Read/Write operations when connected to Ground (GND).
When the Write Protect pin is connected to VCC, the write protection feature is enabled and operates as shown
in the following table.
Table 4-1. Write Protect
WP Pin Status
At VCC
At GND
Part of the Array Protected
Full Array
Normal Read/Write Operations
5. Memory Organization
AT24C01B, 1K Serial EEPROM: Internally organized with 16 pages of 8 bytes each, the 1K requires a 7-bit
data word address for random word addressing.
AT24C02B, 2K Serial EEPROM: Internally organized with 32 pages of 8 bytes each, the 2K requires an 8-bit
data word address for random word addressing.
AT24C04B, 4K Serial EEPROM: Internally organized with 32 pages of 16 bytes each, the 4K requires a 9-bit
data word address for random word addressing.
AT24C08B, 8K Serial EEPROM: Internally organized with 64 pages of 16 bytes each, the 8K requires a 10-bit
data word address for random word addressing.
5.1 Pin Capacitance
Table 5-1.
Pin Capacitance(1)
Applicable over recommended operating range from TA = 25C, f = 400kHz, VCC = +2.5V.
Symbol Test Condition
Max
CI/O
CIN
Note:
Input/Output Capacitance (SDA)
Input Capacitance (A0, A1, A2, SCL)
1. This parameter is characterized and is not 100% tested.
8
6
Units
pF
pF
Conditions
VI/O = 0V
VIN = 0V
AT24C01B/02B/04B/08B Automotive [DATASHEET]
Atmel-8517D-SEEPROM-AT24C01B-02B-04B-08B-Auto-Datasheet_082014
3




Part Number AT24C04B
Description 2-Wire Automotive Temperature Serial EEPROM
Maker ATMEL Corporation
Total Page 18 Pages
PDF Download
AT24C04B pdf
Download PDF File
AT24C04B pdf
View for Mobile






Related Datasheet

1 AT24C04 2-Wire Serial EEPROM ATMEL Corporation
ATMEL Corporation
AT24C04 pdf
2 AT24C04A 2-Wire Serial EEPROM ATMEL
ATMEL
AT24C04A pdf
3 AT24C04B 2-Wire Automotive Temperature Serial EEPROM ATMEL Corporation
ATMEL Corporation
AT24C04B pdf
4 AT24C04C EEPROM ATMEL Corporation
ATMEL Corporation
AT24C04C pdf




Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components