ace24c02a ACE Technology Co., LTD., ace24c02a Datasheet - Page 5

• Manufacturer Part Number: ace24c02a
• Description: Two-wire Serial Eeprom
• Manufacturer: ACE Technology Co., LTD.

Notes:1. This parameter is characterized and not 100% tested.
Device Operation
Clock and Data Transitions:
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:
command (refer to Figure 5).
Stop Condition:
will place the EEPROM in a standby power mode (refer to Figure 5).
Acknowledge:
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 receipt of the stop bit and the completion of any internal operations.
Endurance
All addresses and data words are serially transmitted to and from the EEPROM in 8-bit words. The
The ACE24C02A features a low-power standby mode which is enabled: (a) upon power-up and (b) after
The SDA pin is normally pulled high with an external device. Data on the SDA pin may change only
A high-to-low transition of SDA with SCL high is a start condition which must precede any other
A low-to-high transition of SDA with SCL high is a stop condition. After a read sequence, the stop command
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T
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SU.STO
HD.DAT
SU.DAT
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2.AC measurement conditions:
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WR
DH
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
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F
(1)
5.0V, 25℃, Page Mode
Technology
Data Out Hold Time
Data In Setup Time
Data In Hold Time
Write Cycle Time
Inputs Rise Time
Stop Setup Time
Inputs Fall Time
100
0.6
50
0
Two-wire Serial EEPROM
300
0.3
5
0.25
100
1,000,000
50
0
100
0.3
5
ACE24C02A
0.25
100
50
0
100
0.3
VER 1.2
5
Cycles
Write
ms
µs
µs
µs
ns
ns
ns
5