ACE24LC04 Datasheet PDF - ACE Technology

ACE Technology

Part Number ACE24LC04
Description Two-wire Serial EEPROM
Page 17 Pages

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Two-wire Serial EEPROM
The ACE24(L)C02/04/08/16 provides 2048 / 4096 / 8192 / 16384 bits of serial electrically erasable and
programmable read-only memory (EEPROM) organized as 256/512/1024/2048 words of 8 bits each. The device is
optimized for use in many industrial and commercial applications where low-power and low-voltage
operations are essential.
z Low Operation Voltage:
ACE24C02/04/08/16 : Vcc=2.2V to 5.5V
ACE24LC02/04/08/16 : Vcc=1.7V to 3.6V
z Internally Organized: 266x/(2K), 512x8(4K), 1024x8(8K) or 204/x8(16K)
z Two-wire Serial Interface
z Schmitt Trigger, Filtered Inputs for Noise Suppression
z Bi-directional Data Transfer Protocol
z ACE24C02/04/08/16 :100kHz(2.2V) and 400kHz(5V) Compatibility
ACE24LC02/04/08/16 :1MHz (3.6V,2.7V,2.5V) and 400 kHz (1.7V) Compatibility
z Write Protect Pin for Hardware Data Protection
z 8-byte Page(02), 16-byte Page (04,08,16) Write Modes
z Partial Page Writes are Allowed
z Self-timed Write Cycle (5 ms max)
z High-reliability - Endurance: 1,000,000 Write Cycles
- Data Retention: 100 Years
z PDIP-8,SOP-8,TSSOP-8 ROHS compliant Packages
z Wafer Sales: available in inked wafer Form
Absolute Maximum Ratings
Operating Temperature
Storage Temperature
-55to +125
-65to +150
Voltage on Any Pin with Respect to Ground
-1.0V to +7.0V
Maximum Operating Voltage ACE24(L)C02/04/08/16
DC Output Current
5.0 mA
*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.
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Two-wire Serial EEPROM
Packaging Type
Pin Configurations
Pin Name
A0~A2 Device Address Inputs
SDA Serial Data Input / Output
Serial Clock Input
WP Write Protect
Power Supply
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Two-wire Serial EEPROM
Block Diagram
Figure 1
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Two-wire Serial EEPROM
Ordering information
Selection Guide
ACE24(L)C02/04/08/16 XX + X H
U : Tube
T : Tape and Reel
Pb - free
FM : SOP-8
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 bi-directional 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, A0):
The A2, A1 and A0 pins are device address inputs that are hard wired for the ACE24(L)C02, As many
as eight 2K devices may be addressed on a single bus system (device addressing is discussed in
detail under the Device Addressing section).
The ACE24(L)C04 uses the A2 and A1 inputs for hard wire addressing and a total of four 4K devices
may be addressed on a single bus system. The A0 pin is a no connect.
The ACE24(L)C08 only uses 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 connects.
The ACE24(L)C16 does not use the device address pins, which limits the number of devices on a
single bus to one. The A0, A1 and A2 pins are no connects.
Write Protect (WP):
The ACE24(L)C02/04/08/16 has a Write Protect pin that provides hardware data protection. The Write Protect
pin allows normal read/write operations when connected to ground (GND). When the Write Protect pin is
conceded to Vcc the write protection feature is enabled.
Write Protect Description
Part of the Array Protected
WP Pin Status
ACE24(L)C02 ACE24(L)C04 ACE24(L)C08
WP=VCC Full (2K) Array Full (4K) Array Full (8K) Array Upper Half (8K) Array
Normal Read / Write Operations
VER 1.3 4

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