ace24c128 ACE Technology Co., LTD., ace24c128 Datasheet

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ace24c128

Manufacturer Part Number
ace24c128
Description
Two-wire Serial Eeprom
Manufacturer
ACE Technology Co., LTD.
Datasheet
 
                                                                                                                                                   
                                             
Description
memory (EEPROM) organized as 16,384/32,768 words of 8 bits each. The device’s cascadable feature allows up
to 8 devices to share a common two-wire bus. The device is optimized for use in many industrial and
commercial applications where low-power and low-voltage operations are essential.
Features
Absolute Maximum Ratings
*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 are not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Operating Temperature
Storage Temperature
Voltage on Any Pin with Respect to Ground -1.0V to +7.0V
Maximum Operating Voltage
DC Output Current
The ACE24C128/256 provides 131,072/262,144 bits of serial electrically erasable and programmable read-only
Low Operation Voltage: Vcc = 1.7V to 5.5V
Internally Organized: 16,384 x 8(128K), 32,768 x 8(256K)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bi-directional Data Transfer Protocol
1MHz (2.5V~5.5V) and 400 kHz (1.7V) Compatibility
Write Protect Pin for Hardware Data Protection
64-byte Page Write Modes (Partial Page Writes are Allowed)
Self-timed Write Cycle (5 ms max)
Wafer Sales: available in inked wafer Form
High-reliability - Endurance: 1,000,000 Write Cycles
PDIP-8,SOP-8,TSSOP-8 ROHS compliant Packages
- Data Retention: 100 Years
Technology
-55℃ to +125℃
-65℃ to +150℃
6.25V
5.0 mA
Two-wire Serial EEPROM
ACE24C128/256
VER 1.2

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ace24c128 Summary of contents

Page 1

... Description The ACE24C128/256 provides 131,072/262,144 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 16,384/32,768 words of 8 bits each. The device’s cascadable feature allows devices to share a common two-wire bus ...

Page 2

... Packaging Type Pin Configurations Pin Name Function A0~A2 Device Address Inputs SDA Serial Data Input / Output SCL Serial Clock Input WP Write Protect VCC Power Supply GND Ground Technology ACE24C128/256 Two-wire Serial EEPROM VER 1.2 2 ...

Page 3

... Block Diagram Technology Figure 1 ACE24C128/256 Two-wire Serial EEPROM VER 1.2 3 ...

Page 4

... GND. Write Protect (WP): The ACE24C128/256 has a Write Provides hardware data protection. The WP pin allows normal write operations when connected to ground (GND). When the Write Protect pin is connected to Vcc. All write operations to the memory are inhibited. If the pin is left floating, the WP pin will be internally pulled is < ...

Page 5

... Memory Organization ACE24C128, 128K Serial EEPROM: Internally organized with 256 pages of 64 bytes each, Random word addressing requires a 14-bit data word address ...

Page 6

... Notes:1. This parameter is characterized and not 100% tested. 2.AC measurement conditions: RL (connects to Vcc): 1.3kΩ Input pulse voltages: 0.3 Vcc to 0.7 Vcc Input rise and fall times: ≦50 ns Input and output timing reference voltages: 0.5Vcc Technology Parameter ACE24C128/256 Two-wire Serial EEPROM 1.7-volt 2.5-volt 5.5-volt Min Max Min Max Min Max 400 1000 1000 1 ...

Page 7

... EEPROM sends a zero during the ninth clock cycle to acknowledge that it has received each word. Standby Mode : The ACE24C128/256 features a low-power standby mode which is enabled: (a) upon power-up and (b) after the receipt of the stop bit and the completion of any internal operations. Memory Reset : ...

Page 8

... Figure 3.SCL: Serial Clock, SDA: Serial Data I/O Note: The write cycle time t is the time from a valid stop condition of a write sequence to the end of the internal clear/write WR cycle. Figure 6.Output Acknowledge Technology Figure 4.Data Validity Figure 5.Start and Stop Definition ACE24C128/256 Two-wire Serial EEPROM VER 1.2 8 ...

Page 9

... Special internal circuitry place on the SDA and SCL pins prevent small noise spikes from activating the device. Date Security: The ACE24C128/256 has a hardware data protect scheme that slows the user to write protect the entire memory when the WP pin is at Vcc. Write Operations ...

Page 10

... The sequential read operation is terminated when the microcontroller does not respond with a zero but does generate a following stop condition (refer to Figure 12 MSB Figure 7.Device Address Technology ACE24C128/256 Two-wire Serial EEPROM R/W LSB VER 1.2 10 ...

Page 11

... Figure 10.Current Address Read Technology Figure 8.Byte Write Figure 9.Page Write ACE24C128/256 Two-wire Serial EEPROM VER 1.2 11 ...

Page 12

... Technology Figure 11. Random Read Figure 12. Sequential Read ACE24C128/256 Two-wire Serial EEPROM VER 1.2 12 ...

Page 13

... Packaging information PDIP-8 Note: Dimensions in Millimeters. Technology ACE24C128/256 Two-wire Serial EEPROM VER 1.2 13 ...

Page 14

... SOP-8 Note: Dimensions in Millimeters. Technology ACE24C128/256 Two-wire Serial EEPROM VER 1.2 14 ...

Page 15

... TSSOP-8 Note: Dimensions in Millimeters. Technology ACE24C128/256 Two-wire Serial EEPROM VER 1.2 15 ...

Page 16

... A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness. Technology Notes ACE Technology Co., LTD. http://www.ace-ele.com/ ACE24C128/256 Two-wire Serial EEPROM VER 1.2 16 ...

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