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PDF ACE24C02A Data sheet ( Hoja de datos )
| Número de pieza | ACE24C02A | |
| Descripción | Two-wire Serial EEPROM | |
| Fabricantes | ACE Technology | |
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ACE24C02A
Technology
Two-wire Serial EEPROM
Description
The ACE24C02A provides low operation voltage of 2048 bits of serial electrically erasable and programmable
read-only memory (EEPROM) organized as 256 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
z Low Operation Voltage: Vcc=1.7V to 5.5V
z 5V tolerant I/O
z Internally Organized: 256x8
z Two-wire Serial Interface
z Schmitt Trigger, Filtered Inputs for Noise Suppression
z Bi-directional Data Transfer Protocol
z 1MHz(2.5V~5.5V) and 400kHz(1.7V) Compatibility
z Write Protect Pin for Hardware Data Protection
z 8-byte Page Write Modes
z Partial Page Writes are Allowed
z Self-timed Write Cycle (5 ms max)
z High-reliability - Endurance: 1,000,000 Write Cycles
- Data Retention: 100 Years
Absolute Maximum Ratings
Operating Temperature
-55℃ to +125℃
Storage Temperature
-65℃ to +150℃
Voltage on Any Pin with Respect to Ground -1.0V to +7.0V
Maximum Operating Voltage
6.25V
DC Output Current
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 1.2 1
1 page  
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ACE24C02A
Technology
Two-wire Serial EEPROM
THD.DAT
TSU.DAT
TR
TF
TSU.STO
TDH
TWR
Endurance(1)
Data In Hold Time
Data In Setup Time
Inputs Rise Time
Inputs Fall Time
Stop Setup Time
Data Out Hold Time
Write Cycle Time
5.0V, 25℃, Page Mode
Notes:1. This parameter is characterized and not 100% tested.
2.AC measurement conditions:
RL (connects to Vcc): 1.3kΩ (2.5V, 5.5V), 10kΩ (1.7V)
Input pulse voltages: 0.3 Vcc to 0.7 Vcc
Input rise and fall times: ≦50 ns
Input and output timing reference voltages: 0.5Vcc
00
0
µs
100 100
100
ns
0.3 0.3 0.3 µs
300 100 100 ns
0.6 0.25 0.25
µs
50 50
50
ns
55
5 ms
1,000,000
Write
Cycles
Device Operation
Clock and Data Transitions:
The SDA pin is normally pulled high with an external device. Data on the SDA pin may change only
during SCL low time periods (refer to Figure 4). Data changes during SCL high periods will indicate a
start or stop condition as defined below.
Start Condition:
A high-to-low transition of SDA with SCL high is a start condition which must precede any other
command (refer to Figure 5).
Stop Condition:
A low-to-high transition of SDA with SCL high is a stop condition. After a read sequence, the stop command
will place the EEPROM in a standby power mode (refer to Figure 5).
Acknowledge:
All addresses and data words are serially transmitted to and from the EEPROM in 8-bit words. The
EEPROM sends a zero during the ninth clock cycle to acknowledge that it has received each word. The
happens during the ninth clock cycle. Following receipt each word from the EEPROM, the
microcontroller should send a zero to EEPROM and continue to output the next data word or send a
stop condition to finish the read cycle.
Standby Mode :
The ACE24C02A features a low-power standby mode which is enabled: (a) upon power-up and (b) after
the receipt of the stop bit and the completion of any internal operations.
VER 1.2 5
5 Page 
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ACE24C02A
Technology
Two-wire Serial EEPROM
Packaging information
PDIP-8
Note: Dimensions in Millimeters.
VER 1.2 11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet ACE24C02A.PDF ] | |
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