FT24C128A-USG-T datasheet, PDF

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FT24C128A-USG-T: DescriptionIC EEPROM 128K I2C 1MHZ 8SOP; Categorystorage storage; File Size874KB，16 Pages; ManufacturerFremont Micro Devices USA; Environmental Compliance

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FT24C128A-USG-T Overview

IC EEPROM 128K I2C 1MHZ 8SOP

FT24C128A-USG-T Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Fremont Micro Devices USA
package instruction	SOP,
Reach Compliance Code	unknown
Other features	ALSO OPERATES AT 400KHZ AT 1.8V MIN SUPPLY
Maximum clock frequency (fCLK)	1 MHz
JESD-30 code	R-PDSO-G8
length	4.9 mm
memory density	1048576 bit
Memory IC Type	EEPROM
memory width	8
Number of functions	1
Number of terminals	8
word count	131072 words
character code	128000
Operating mode	SYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	128KX8
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	SERIAL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Maximum seat height	1.75 mm
Serial bus type	I2C
Maximum supply voltage (Vsup)	5 V
Minimum supply voltage (Vsup)	2.5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3.9 mm
Maximum write cycle time (tWC)	5 ms

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Fremont Micro Devices

24C128A

Two-Wire Serial EEPROM

128K (8-bit wide)

FEATURES



Low voltage and low power operations:



FT24C128A:

= 1.8V to 5.5V

Maximum Standby current < 1µA .

64 bytes page write mode.

Partial page write operation allowed.

Internally organized: 16,384 ×8 (128K).

Standard 2-wire bi-directional serial interface.

Schmitt trigger, filtered inputs for noise protection.

Self-timed write cycle (5ms maximum).

1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility.

Automatic erase before write operation.

Write protect pin for hardware data protection.

High reliability: typically 1,000,000 cycles endurance.

100 years data retention.

Industrial temperature range (-40℃ to 85℃).



Standard 8-lead DIP/SOP/MSOP/TSSOP/DFN(128k only) Pb-free packages.

DESCRIPTION

The FT24C128A series are 131,072 bits of serial Electrical Erasable and Programmable Read Only Memory,

commonly known as EEPROM. They are organized as 16,384 words of 8 bits (one byte) each. The devices

are fabricated with proprietary advanced CMOS process for low power and low voltage applications. These

devices are available in standard 8-lead DIP, 8-lead SOP, 8-lead MSOP, 8-lead TSSOP, and 8-lead DFN

packages. A standard 2-wire serial interface is used to address all read and write functions. Our extended

range (1.8V to 5.5V) devices enables wide spectrum of applications.

PIN CONFIGURATION

Pin Name

A2, A1, A0

SDA

SCL

Device Address Inputs

Serial Data Input / Open Drain Output

Serial Clock Input

Write Protect

No-Connect

Pin Function

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DS24C128-A2-page1

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Fremont Micro Devices

24C128A

WRITE OPERATIONS

(A) BYTE WRITE

A write operation requires two 8-bit data word address following the device address word and

ACKNOWLEDGE signal. Upon receipt of this address, the EEPROM will respond with a “0” and then

clock in the first 8-bit data word. Following receipt of the 8-bit data word, the EEPROM will again output

a “0”. The addressing device, such as a microcontroller, must terminate the write sequence with a

STOP condition. At this time the EEPROM enters into an internally-timed write cycle state. All inputs

are disabled during this write cycle and the EEPROM will not respond until the writing is completed

(figure 3).

(B) PAGE WRITE

A page write is initiated the same way as a byte write, but the microcontroller does not send a STOP

condition after the first data word is clocked in. The microcontroller can transmit up to 63 more data

words after the EEPROM acknowledges receipt of the first data word. The EEPROM will respond with a

“0” after each data word is received. The microcontroller must terminate the page write sequence with a

STOP condition (see Figure 4).

The lower six bits of the data word address are internally incremented following the receipt of each data

word. The higher data word address bits are not incremented, retaining the memory page row location.

If more than 64 data words are transmitted to the EEPROM, the data word address will “roll over” and

the previous data will be overwritten.

ACKNOWLEDGE polling may be used to poll the programming status during a self-timed internal

programming. By issuing a valid read or write address command, the EEPROM will not acknowledge at

the 9 clock cycle if the device is still in the self-timed programming mode. However, if the programming

completes and the chip has returned to the STANDBY mode, the device will return a valid

ACKNOWLEDGE signal at the 9 clock cycle.

The128K EEPROM are capable of 64-byte page write.

READ OPERATIONS

The read command is similar to the write command except the 8 read/write bit in address word is set to “1”.

The three read operation modes are described as follows:

(A) CURRENT ADDRESS READ

The EEPROM internal address word counter maintains the last read or write address plus one if the

power supply to the device has not been cut off. To initiate a current address read operation, the micro-

controller issues a START bit and a valid device address word with the read/write bit (8 ) set to “1”. The

EEPROM will response with an ACKNOWLEDGE signal on the 9 serial clock cycle. An 8-bit data word

will then be serially clocked out. The internal address word counter will then automatically increase by

one. For current address read the micro-controller will not issue an ACKNOWLEDGE signal on the 18

clock cycle. The micro-controller issues a valid STOP bit after the 18 clock cycle to terminate the read

operation. The device then returns to STANDBY mode (see Figure 5).

The sequential read is very similar to current address read. The micro-controller issues a START bit

and a valid device address word with read/write bit (8 ) set to “1”. The EEPROM will response with an

ACKNOWLEDGE signal on the 9 serial clock cycle. An 8-bit data word will then be serially clocked out.

Meanwhile the internally address word counter will then automatically increase by one.

(B) SEQUENTIAL READ

fid

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DS24C128-A2-page5

FT24C128A-USG-T Related Products

	FT24C128A-USG-T	FT24C128A-UTR-T	FT24C128A-UTG-T	FT24C128A-UMR-B	FT24C128A-UDR-B	FT24C128A-USR-T
Description	IC EEPROM 128K I2C 1MHZ 8SOP	IC EEPROM 128K I2C 1MHZ 8TSSOP	IC EEPROM 128KBIT 1MHZ 8TSSOP	IC EEPROM 128K I2C 1MHZ 8MSOP	IC EEPROM 128K I2C 1MHZ 8DIP	IC EEPROM 128K I2C 1MHZ 8SOP
Is it lead-free?	Lead free	Lead free	Lead free	Lead free	Lead free	Lead free
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	conform to
package instruction	SOP,	TSSOP,	TSSOP,	TSSOP,	DIP,	SOP,
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown
Other features	ALSO OPERATES AT 400KHZ AT 1.8V MIN SUPPLY	ALSO OPERATES AT 400KHZ AT 1.8V MIN SUPPLY	ALSO OPERATES AT 400KHZ AT 1.8V MIN SUPPLY	ALSO OPERATES AT 400KHZ AT 1.8V MIN SUPPLY	ALSO OPERATES AT 400KHZ AT 1.8V MIN SUPPLY	ALSO OPERATES AT 400KHZ AT 1.8V MIN SUPPLY
Maximum clock frequency (fCLK)	1 MHz	1 MHz	1 MHz	1 MHz	1 MHz	1 MHz
JESD-30 code	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	S-PDSO-G8	R-PDIP-T8	R-PDSO-G8
length	4.9 mm	4.4 mm	4.4 mm	3 mm	9.2 mm	4.9 mm
memory density	1048576 bit	1048576 bit	1048576 bit	1048576 bit	1048576 bit	1048576 bit
Memory IC Type	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM
memory width	8	8	8	8	8	8
Number of functions	1	1	1	1	1	1
Number of terminals	8	8	8	8	8	8
word count	131072 words	131072 words	131072 words	131072 words	131072 words	131072 words
character code	128000	128000	128000	128000	128000	128000
Operating mode	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
organize	128KX8	128KX8	128KX8	128KX8	128KX8	128KX8
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	TSSOP	TSSOP	TSSOP	DIP	SOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	SQUARE	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	IN-LINE	SMALL OUTLINE
Parallel/Serial	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Maximum seat height	1.75 mm	1.1 mm	1.1 mm	1.1 mm	4.31 mm	1.75 mm
Serial bus type	I2C	I2C	I2C	I2C	I2C	I2C
Maximum supply voltage (Vsup)	5 V	5 V	5 V	5 V	5 V	5 V
Minimum supply voltage (Vsup)	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V
surface mount	YES	YES	YES	YES	NO	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	THROUGH-HOLE	GULL WING
Terminal pitch	1.27 mm	0.65 mm	0.65 mm	0.65 mm	2.54 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	3.9 mm	3 mm	3 mm	3 mm	7.62 mm	3.9 mm
Maximum write cycle time (tWC)	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms
Maker	Fremont Micro Devices USA	Fremont Micro Devices USA	-	Fremont Micro Devices USA	Fremont Micro Devices USA	Fremont Micro Devices USA

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