ACE24(L)C02/04/08/16

Two-wire Serial EEPROM

VER 1.3

4

Ordering information

Selection Guide

ACE24(L)C02/04/08/16 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, 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

ACE24(L)C16

Full (2K) Array

Full (4K) Array

Full (8K) Array

Upper Half (8K) Array

WP=GND

Normal Read / Write Operations

Pb - free

U : Tube

T : Tape and Reel

DP : PDIP-8

FM : SOP-8

TM : TSSOP-8

Halogen-free