ACE24C16A
Two-wire Serial EEPROM
Description
The ACE24C16A provides low operation voltage of 16384 bits of serial electrically erasable and programmable
read-only memory (EEPROM) organized as 2048 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low-power and low-voltage operations are essential.
Features
Low Operation Voltage: Vcc=1.7V to 5.5V
Internally Organized: 2048x8
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bi-directional Data Transfer Protocol
1MHz(2.5V~5.5V) and 400kHz(1.7V) Compatibility
Write Protect Pin for Hardware Data Protection
16-byte Page Write Modes
Partial Page Writes are Allowed
Self-timed Write Cycle (5 ms max)
High-reliability - Endurance: 1,000,000 Write Cycles
- Data Retention: 100 Years
Absolute Maximum Ratings
Operating Temperature
Storage Temperature
Voltage on Any Pin with Respect to Ground
Maximum Operating Voltage
DC Output Current
-55℃ to +125℃
-65℃ to +150℃
-1.0V to +7.0V
6.25V
5.0 mA
*Notice: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational
sections of this specification are not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
VER 1.4
1
ACE24C16A
Two-wire Serial EEPROM
Packaging Type
Pin Configurations
Pin Name
A0~A2
SDA
SCL
WP
V
CC
GND
Function
Device Address Inputs
Serial Data Input / Output
Serial Clock Input
Write Protect
Power Supply
Ground
VER 1.4
2
ACE24C16A
Two-wire Serial EEPROM
Block Diagram
Figure 1.
Ordering Information
ACE24C16A XX + X H
Halogen - free
U : Tube
T : Tape and Reel
Pb - free
DP : DIP-8
FM : SOP-8
TM : TSSOP-8
DM: TDFN
VER 1.4
3
ACE24C16A
Two-wire Serial EEPROM
Pin Description
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
The ACE24C16A does not use the device address pins, which limits the number of devices on a
single bus to one.
Write Protect (WP):
The ACE24C16A 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
WP Pin Status
WP=V
CC
WP=GND
Part of the Array Protected
ACE24C16A
Full (16K) Array
Normal Read / Write Operations
Memory Organization
ACE24C16A, 16K Serial EEPROM:
Internally organized with 128 pages of 16 bytes each, the 16K requires an 11-bit data word address for
random word addressing.
Pin Capacitance
Applicable over recommended operating range from: T
A
= 25℃, f = 1.0 MHz, V
CC
= +1.7V.
Symbol
C
I/O 1
C
IN 1
Test Condition
Input / Output Capacitance (SDA)
Input Capacitance (SCL)
Max
8
6
Units
pF
pF
Conditions
V
I/O
= 0V
V
IN
= 0V
Note: This parameter is characterized and is not 100% tested.
VER 1.4
4
ACE24C16A
Two-wire Serial EEPROM
DC Characteristics
Applicable over recommended operating range from: T
A
= -40℃ to +85℃, Vcc= +1.7V to +5.5V (unless otherwise noted).
Symbol
V
CC
I
CC1
I
CC2
I
SB1
I
SB2
I
LI
I
LO
V
IL1
V
IH1
V
OL2
V
OL1
Parameter
Supply Voltage
Supply Current
Supply Current
Standby Current
Standby Current
Input Leakage Current
Output Leakage Current
Input Low Level
Input High Level
Output Low Level 2
Output Low Level 1
Test Condition
Min
1.7
Typ
Max
5.5
Units
V
mA
mA
µA
µA
µA
µA
V
V
V
V
V
CC
= 5.5V, Read at 400K
V
CC
= 5.5V, Write at 400K
V
CC
= 1.7V, V
IN
= V
CC
/ V
SS
V
CC
= 5.5V, V
IN
= V
CC
/ V
SS
V
IN
= V
CC
/V
SS
V
OUT
= V
CC
/ V
SS
-0.6
V
CC
x0.7
V
CC
= 3.0V, I
OL
= 2.1 mA
V
CC
= 1.7V, I
OL
= 0.15 mA
0.4
2.0
1.0
3.0
1.0
6.0
0.10
0.05
3.0
3.0
V
CC
x0.3
V
CC
+0.5
0.4
0.2
Note: 1.
V
IL
min and
V
IH
max are reference only and are not tested.
VER 1.4
5
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