ACE24C1024

Two-wire Serial EEPROM

VER 1.4

3

Ordering information

ACE24C1024 XX

+

X

H

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):

The A2, A1 pins are device address inputs that are hardwired or left not connected for hardware

compatibility with other ACE24CXXX devices. When the pins are hardwired, as many as eight 1024K

devices may be addressed on a single bus system (device addressing is discussed in detail under the

Device Addressing section).If the pins are left floating, the A2, A1 pins will be internally pulled down to

GND if the capacitive coupling to the circuit board Vcc plane is < 3pF, if coupling is > 3pF

recommends connecting the address pins to GND.

Write Protect (WP):

The ACE24C1024 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.

Write Protect Description

WP Pin Status

Part of the Array Protected

Full (1024K) Memory

WP=GND

Normal Read/Write Operations

Pb - free

U : Tube

T : Tape and Reel

DP : DIP-8

FM : SOP-8

TM : TSSOP-8

Halogen-free