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ACE24C256BのメーカーはACE Technologyです、この部品の機能は「Two-wire Serial EEPROM」です。 |
部品番号 | ACE24C256B |
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部品説明 | Two-wire Serial EEPROM | ||
メーカ | ACE Technology | ||
ロゴ | |||
このページの下部にプレビューとACE24C256Bダウンロード(pdfファイル)リンクがあります。 Total 17 pages
ACE24C128B/256B/512B
Two-wire Serial EEPROM
Description
The ACE24C128B/256B/512B provides 131,072/262,144/524,288 bits of serial electrically erasable and
programmable read-only memory (EEPROM), organized as 16,384/32,768/65,536 words of 8 bits each. The device is
optimized for use in many industrial and commercial applications where low-power and low-voltage operation are
essential. The ACE24C128B/256B/512B is available in space-saving 8-lead PDIP, 8-lead SOP, and 8-lead TSSOP
packages and is accessed via a two-wire serial interface. In addition, the ACE24C128B/256B/512B is available in
1.7V (1.7V to 5.5V) version.
Features
Wide Voltage Operation
- VCC = 1.7V to 5.5V
Operating Ambient Temperature: -40℃ to +85℃
Internally Organized:
- ACE24C128B, 16,384 * 8 (128K bits)
- ACE24C256B, 32,768 * 8 (256K bits)
- ACE24C512B, 65,536 * 8 (512K bits)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5V), 400 KHz (1.7V, 2.5V, 2.7V) Compatibility
Write Protect Pin for Hardware Data Protection
64-byte Page (128K, 256K), 128-byte (512K) Write Modes
Partial Page Writes Allowed
Self-timed Write Cycle (5 ms max)
High-reliability
- Endurance: 1 Million Write Cycles
- Data Retention: 100 Years
Absolute Maximum Ratings
DC Supply Voltage
-0.3 to 6.5V
Input / Output Voltage
GND-0.3V to VCC+0.3V
Operating Ambient Temperature
-40℃ to 85℃
Storage Temperature
-65℃ to 150℃
*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.
VER 1.4 1
1 Page Block Diagram
ACE24C128B/256B/512B
Two-wire Serial EEPROM
VER 1.4 3
3Pages ACE24C128B/256B/512B
Two-wire Serial EEPROM
Figure 2: Start and Stop Definition
Figure 3: Output Acknowledge
Device Addressing
The 128K/256K/512K EEPROM devices all require an 8-bit device address word following a start
condition to enable the chip for a read or write operation (see to Figure 4 on page 7).
The device address word consists of a mandatory "1", "0" sequence for the first four most significant
bits as shown. This is common to all the Serial EEPROM devices.
The 128K/256K/512K EEPROM uses A2, A1 and A0 device address bits to allow as much as eight
devices on the same bus. These 3 bits must be compared to their corresonding hardwired input pins.
The A2, A1 and A0 pins use an internal proprietary circuit that biases them to a logic low condition if the
pins are allowed to float.
VER 1.4 6
6 Page | |||
ページ | 合計 : 17 ページ | ||
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PDF ダウンロード | [ ACE24C256B データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
ACE24C256 | Two-wire Serial EEPROM | ACE Technology |
ACE24C256B | Two-wire Serial EEPROM | ACE Technology |