ACE24C256 datasheet(5/18 Pages) ACE

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ACE24C128/256

Two-wire Serial EEPROM

VER 1.5

Write Protect Description

WP Pin Status

Part of the Array Protected

ACE24C128

ACE24C256

WP=VCC

Full (128K) Memory

Full (256K) Memory

WP=GND

Normal Read/Write Operations

Memory Organization

ACE24C128, 128K Serial EEPROM:

Internally organized with 256 pages of 64 bytes each, Random word addressing requires a 14-bit data

word address.

ACE24C256, 256K Serial EEPROM:

Internally organized with 512 pages of 64 bytes each, Random word addressing requires a 15-bit data

word address.

Pin Capacitance

Applicable over recommended operating range from: TA = 25℃, f = 1.0 MHz, VCC = +1.7V.

Symbol

Test Condition

Max

Units

Conditions

CI/O

Input / Output Capacitance

VI/O = 0V

CIN

Input Capacitance

VIN = 0V

Note: 1. This parameter is characterized and is not 100% tested.

DC Characteristics

Applicable over recommended operating range from: TA = -40℃ to +85℃, VCC = +1.7V to +5.5V, (unless otherwise noted).

Symbol

Parameter

Test Condition

Min

Typ

Max

Units

VCC

Supply Voltage

1.7

5.5

ICC1

Supply Current

VCC = 5V, Read at 400KHz

0.4

1.0

ICC2

Supply Current

VCC = 5V, Write at 400KHz

2.0

3.0

ISB1

Standby Current

VCC = 1.7V, VIN = VCC/ VSS

1.0

µA

ISB2

Standby Current

VCC = 5.5V, VIN = VCC/ VSS

6.0

µA

ILI

Input Leakage Current

VIN = VCC/VSS

0.10

3.0

µA

ILO

Output Leakage Current

VOUT = VCC/ VSS

0.05

3.0

µA

VIL

Input Low Level

-0.6

VCCx0.3

VIH

Input High Level

VCCx0.7

VCC+0.5

VOL2

Output Low Level 2

VCC = 3.0V, IOL = 2.1 mA

0.4

VOL1

Output Low Level 1

VCC = 1.7V, IOL = 0.15 mA

0.2

Note: 1. VIL min and VIH max are reference only and are not tested.

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