ace24c08a ACE Technology Co., LTD., ace24c08a Datasheet - Page 3

• Manufacturer Part Number: ace24c08a
• Description: Two-wire Serial Eeprom
• Manufacturer: ACE Technology Co., LTD.

Ordering Information
Pin Description
Serial Clock (SCL):
data out of each device.
Serial Data (SDA):
wire-ORed with any number of other open-drain or open-collector devices.
Device/Page Addresses (A2,A1)
may be addressed on a single bus system. The A0 pin is a no connect and can be connected to
ground (device addressing is discussed in detail under the Device Addressing section).
addressed on a single bus system. The A0 and A1 pins are no connects and can be connected to
ground (device addressing is discussed in detail under the Device Addressing section).
Write Protect (WP):
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
The ACE24C04/08A has a Write Protect pin that provides hardware data protection. The Write Protect pin
The SCL input is used to positive edge clock data into each EEPROM device and negative edge clock
The SDA pin is bi-directional for serial data transfer. This pin is open-drain driven and may be
The ACE24C04A uses the A2 and A1 inputs for hard wire addressing and a total of four 4K devices
The ACE24C08A only uses the A2 input for hardware addressing and total of two 8K devices may be
Selection Guide
ACE24C04/08A XX + X H
WP Pin Status
WP=GND
WP=V
CC
Technology
Halogen - free
U : Tube
T : Tape and Reel
Pb - free
DP : PDIP-8
FM : SOP-8
TM : TSSOP-8
Full (4K) Array
ACE24C04A
Normal Read / Write Operations
Part of the Array Protected
Two-wire Serial EEPROM
ACE24C04.08A
Full (8K) Array
ACE24C08A
VER 1.2
3