GT24C512
Advanced
GT24C512
2-WIRE
512K Bits
Serial EEPROM
Copyright © 2011 Giantec Semiconductor Inc. (Giantec). All rights reserved. Giantec reserves the right to make changes to this specification and its products at any time without
notice. Giantec products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for critical medical or surgical equipment,
aerospace or military, or other applications planned to support or sustain life. It is the customer's obligation to optimize the design in their own products for the best performance
and optimization on the functionality and etc. Giantec assumes no liability arising out of the application or use of any information, products or services described herein. Customers
are advised to obtain the latest version of this device specification before relying on any published information and prior placing orders for products.
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GT24C512
Table of Contents
1.
2.
3.
4.
Features
.....................................................................................................................................................................
3
General Description
.............................................................................................................................................
3
Functional Block Diagram
................................................................................................................................
4
Pin Configuration...................................................................................................................................................
5
4.1 8-Pin SOIC/SOP and TSSOP ................................................................................................................. 5
4.2 Pin Definition ........................................................................................................................................... 5
4.3 Pin Descriptions ...................................................................................................................................... 5
5. Device Operation
...................................................................................................................................................
6
5.1 2-WIRE Bus ............................................................................................................................................ 6
5.2 The Bus Protocol .................................................................................................................................... 6
5.3 Start Condition ........................................................................................................................................ 6
5.4 Stop Condition......................................................................................................................................... 6
5.5 Acknowledge ........................................................................................................................................... 6
5.6 Reset ....................................................................................................................................................... 6
5.7 Standby Mode ......................................................................................................................................... 6
5.8 Device Addressing .................................................................................................................................. 6
5.9 Write Operation ....................................................................................................................................... 7
5.10 Read Operation..................................................................................................................................... 7
5.11 Diagrams ............................................................................................................................................... 8
5.12 Timing Diagrams ................................................................................................................................. 11
6. Electrical Characteristics
..............................................................................................................................
12
6.1 Absolute Maximum Ratings .................................................................................................................. 12
6.2 Operating Range................................................................................................................................... 12
6.3 Capacitance .......................................................................................................................................... 12
6.4 DC Electrical Characteristic .................................................................................................................. 13
6.5 AC Electrical Characteristic .................................................................................................................. 14
7. Ordering Information
.........................................................................................................................................
15
8. Top Markings
.......................................................................................................................................................... 16
8.1 SOP Package........................................................................................................................................ 16
8.2 TSSOP Package ................................................................................................................................... 16
9. Package Information
.........................................................................................................................................
17
9.1 SOIC/SOP ............................................................................................................................................. 17
9.2 TSSOP .................................................................................................................................................. 18
10. Revision History
................................................................................................................................................
19
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GT24C512
1. Features
Two-Wire Serial Interface, I C
2
TM
Compatible
Page Size: 128 bytes
Page write mode
–
–
Bi-directional data transfer protocol
Wide-voltage Operation
V
CC
= 1.7V to 5.5V
–
Up to 128 bytes per page write
Self timed write cycle with auto clear: 5ms (max.)
Filtered inputs for noise suppression
High-reliability
Speed: 400 KHz (1.7V) and 1 MHz (2.5V~5.5V)
Standby current (max.): 1
A,
1.7V
Operating current (max.): 2 mA, 1.7V
Hardware Data Protection
–
–
Endurance: 1 million cycles
Data retention: 100 years
–
Write Protect Pin
Industrial temperature grades
Packages: SOIC/SOP, TSSOP and CSP
Lead-free, RoHS, Halogen free, Green
Sequential & Random Read Features
Memory organization: 65,536 x 8 bits
2. General Description
The GT24C512 are EEPROM devices that use the
industrial standard 2-wire interface for communications. The
GT24C512
contains
a
memory
array
of
512K-bits
device, and a series of data, if appropriate. The GT24C512
also has a Write Protect pin (WP) to allow blocking any
write operations over specified memory area.
Under no circumstance, the device will be hung up. In order
to refrain the state machine entering into a wrong state
during power-up sequence or a power toggle off-on
condition, a power on reset circuit is embedded. During
power-up, the device does not respond to any instructions
until the supply voltage (V
CC
) has reached an acceptable
stable level above the reset threshold voltage. Once V
CC
passes the power on reset threshold, the device is reset
and enters into the Standby mode. This would also avoid
any inadvertent Write operations during power-up stage.
During power-down process, the device will enter into
standby mode, once V
CC
drops below the power on reset
threshold voltage. In addition, the device will be in standby
mode after receiving the Stop command, provided that no
internal write operation is in progress. Nevertheless, it is
illegal to send a command unless the V
CC
is within its
operating level.
(65,536x8), which is organized in 128-byte per page.
The EEPROM can operate in a wide voltage range from
1.7V to 5.5V which fits most application. This product can
provide a low-power 2-wire EEPROM solution. The device
is offered in Lead-free, RoHS, halogen free or Green. The
available package types are 8-pin SOIC/SOP, TSSOP and
CSP.
The GT24C512 is compatible with the industrial standard
2-wire bus protocol. If in case the bus is not responded, a
new sent Op-code command will reset the bus and the
device will respond correctly. The simple bus consists of the
Serial Clock wire (SCL) and the Serial Data wire (SDA).
Utilizing such bus protocol, a Master device, such as a
microcontroller, can usually control one or more Slave
devices, alike this GT24C512. The bit stream over the SDA
line includes a series of bytes, which identifies a particular
Slave device, an instruction, an address within that Slave
s
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GT24C512
3. Functional Block Diagram
VCC
8
HIGH VOLTAGE
GENERATOR
TIMING &
CONTROL
SDA
SCL
WP
5
7
SLAVE ADDRESS
REGISTER &
COMPARATOR
CONTROL LOGIC
X DECODER
6
EEPROM ARRAY
A0
A1
A2
1
2
3
WORD ADDRESS
COUNTER
Y DECODER
ACK
GND 4
nMOS
CLOCK
DI/O
DATA REGISTER
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GT24C512
4. Pin Configuration
4.1 8-Pin SOIC/SOP and TSSOP
A0
A1
A2
GND
1
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
4.2 Pin Definition
Pin No.
1
2
3
4
5
6
7
8
Pin Name
A0
A1
A2
GND
SDA
SCL
WP
V
CC
I/O
I
I
I
-
I/O
I
I
-
Device Address Input
Device Address Input
Device Address Input
Ground
Serial Address and Data input and Data out put
Serial Clock Input
Write Protect Input
Power Supply
Definition
4.3 Pin Descriptions
SCL
This input clock pin is used to synchronize the data transfer
to and from the device.
SDA
The SDA is a bi-directional pin used to transfer addresses
and data into and out of the device. The SDA pin is an open
drain output and can be wired with other open drain or open
collector outputs. However, the SDA pin requires a pull-up
resistor connected to the power supply.
A0, A1, A2
The A0, A1 and A2 are the device address inputs.
Typically, the A0, A1, and A2 pins are for hardware
addressing and a total of 8 devices can be connected on a
single bus system. When A0, A1, and A2 are left floating,
the inputs are defaulted to zero.
WP
WP is the Write Protect pin. While the WP pin is connected
to the power supply of GT24C512, the entire array becomes
Write Protected (i.e. the device becomes Read only). When
WP is tied to Ground or left floating, the normal write
operations are allowed.
V
CC
Supply voltage
GND
Ground of supply voltage
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