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ACE24C02 Datasheet(PDF) 4 Page - ACE Technology Co., LTD. |
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ACE24C02 Datasheet(HTML) 4 Page - ACE Technology Co., LTD. |
4 / 20 page ACE24C02/04/08/16B Two-wire Serial EEPROM VER 1.3 4 Ordering information ACE24C02/04/08/16B XX + X H Device/Page Addresses (A2, A1 and A0): The A2, A1 and A0 pins are device address inputs that are hard wired for the ACE24C02B. Eight 2K devices may be addressed on a single bus system (device addressing is discussed in detail under the Device Addressing section). The ACE24C04B 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 and can be connected to ground. The ACE24C08B only uses the 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 and can be connected to ground. The ACE24C16B 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 and can be connected to ground. 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. 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. Write Protect (WP): The ACE24C02B/ACE24C04B/ACE24C08B/ACE24C16B 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 connected to VCC, the write protection feature is enabled and operates as shown in the following. Pb - free U : Tube T : Tape and Reel DP : DIP-8 FM : SOP-8 TM : TSSOP-8 OM : MSOP-8 DM : TDFN BM : SOT-23-5 Halogen-free |
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