S524A40X20 PDF даташит
Спецификация S524A40X20 изготовлена «Samsung semiconductor» и имеет функцию, называемую «1K/2K/4K-bit Serial EEPROM for Low Power with software write protect». |
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Детали детали
Номер произв | S524A40X20 |
Описание | 1K/2K/4K-bit Serial EEPROM for Low Power with software write protect |
Производители | Samsung semiconductor |
логотип |
18 Pages
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S524A40X10/40X20/40X40
1K/2K/4K-bit
Serial EEPROM for Low Power
with software write protect
Data Sheet
OVERVIEW
The S524A40X10/40X20/40X40 serial EEPROM has a 1,024/2,048/4,096-bit (128/256/512-byte) capacity,
supporting the standard I2C™-bus serial interface. It is fabricated using Samsungs’ most advanced CMOS
technology. It has been developed for low power and low voltage applications (1.8 V to 5.5 V). Important features
are a hardware-based write protection circuit for the entire memory area and software-based write protection logic
for the lower 128 bytes. Hardware-based write protection is controlled by the state of the write-protect (WP) pin.
The software-based method is one-time programmable and permanent. Using one-page write mode, you can
load up to 16 bytes of data into the EEPROM in a single write operation. Another significant feature of the
S524A40X10/40X20/40X40 is its support for fast mode and standard mode.
FEATURES
I2C-Bus Interface
• Two-wire serial interface
• Automatic word address increment
EEPROM
• 1K/2K/4K-bit (128/256/512-byte) storage area
• 16-byte page buffer
• Typical 3 ms write cycle time with
auto-erase function
• Hardware-based write protection for the entire
EEPROM (using the WP pin)
• Software-based write protection for the lower
128-byte EEPROM
• EEPROM programming voltage generated
on chip
• 1,000,000 erase/write cycles
• 100 years data retention
Operating Characteristics
• Operating voltage
— 1.8 V to 5.5 V
• Operating current
— Maximum write current: < 3 mA at 5.5 V
— Maximum read current: < 200 µA at 5.5 V
— Maximum stand-by current: < 1 µA at 5.5 V
• Operating temperature range
— – 25°C to + 70°C (commercial)
— – 40°C to + 85°C (industrial)
• Operating clock frequencies
— 100 kHz at standard mode
— 400 kHz at fast mode
• Electrostatic discharge (ESD)
— 5,000 V (HBM)
— 500 V (MM)
Packages
• 8-pin DIP, SOP, and TSSOP
2-1
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S524A40X10/40X20/40X40 SERIAL EEPROM
DATA SHEET
SDA
WP
SCL
A0
A1
A2
Start/Stop
Logic
Slave Address
Comparator
Control Logic
Word Address
Pointer
Row
decoder
HV Generation
Timing Control
EEPROM
Cell Array
128 x 8 bits
256 x 8 bits
512 x 8 bits
Column Decoder
DOUT and ACK
Data Register
Figure 2-1. S524A40X10/40X20/40X40 Block Diagram
2-2
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DATA SHEET
S524A40X10/40X20/40X40 SERIAL EEPROM
VCC WP SCL SDA
S524A40X10/
40X20/40X40
A0 A1 A2 VSS
NOTE: The S524A40X10/40X20/40X40 is available
in 8-pin DIP, SOP, and TSSOP package.
Figure 2-2. Pin Assignment Diagram
Name
Type
Table 2-1. S524A40X10/40X20/40X40 Pin Descriptions
Description
A0, A1, A2
VSS
SDA
SCL
WP
VCC
Input
–
I/O
Input
Input
–
Input pins for device address selection. To configure a device address,
these pins should be connected to the VCC or VSS of the device.
These pins are internally pulled down to VSS.
Ground pin.
Bi-directional data pin for the I2C-bus serial data interface. Schmitt
trigger input and open-drain output. An external pull-up resistor must
be connected to VCC. Typical values for this pull-up resistor are 4.7 kΩ
(100 kHz) and 1 kΩ (400 kHz).
Schmitt trigger input pin for serial clock input.
Input pin for hardware write protection control. If you tie this pin to VCC,
the write function is disabled to protect previously written data in the
entire memory; if you tie it to VSS, the write function is enabled.
This pin is internally pulled down to VSS.
Single power supply.
NOTE: See the following page for diagrams of pin circuit types 1, 2, and 3.
Circuit
Type
1
–
3
2
1
–
2-3
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Номер в каталоге | Описание | Производители |
S524A40X20 | 1K/2K/4K-bit Serial EEPROM for Low Power with software write protect | Samsung semiconductor |
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DataSheet26.com | 2020 | Контакты | Поиск |