ACE24C1024 Datasheet, PDF (5/16 Pages) ACE Technology Co., LTD. – Two-wire Serial EEPROM

ACE24C1024
Two-wire Serial EEPROM
AC Characteristics
Applicable over recommended operating range from: TA = -40℃ to +85℃, VCC = +1.7V to +5.5V, CL = 100 pF (unless otherwise
noted). Test conditions are listed in Note2.
Symbol
Parameter
1.7-volt 2.5-volt 5.5-volt
Units
Min Max Min Max Min Max
f_SCL
T_LOW
T_HIGH
Ti¹
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Noise Suppression Time
400
1000
1000 kHz
1300
400
400
ns
600
400
400
ns
100
50
50
T_AA
T_BUF1
Clock Low to Data Out Valid
Time the bus must be free before a new
transmission can Start
20 900 20 550 20 550 ns
1300
500
500
ns
T_HD.STA
T_SU.STA
T_HD.DAT
T_SU.DAT
T_R
T_F
T_SU.STO
T_DH
T_WR
Endurance¹
Start Hold Time
Start Setup Time
Data In Hold Time
Data In Setup Time
Inputs Rise Time
Inputs Fall Time
Stop Setup Time
Data Out Hold Time
Write Cycle Time
3.3V, 25℃, Page Mode
600
250
250
ns
600
250
250
ns
0
0
0
ns
100
100
100
ns
300
300
300 ns
300
100
100 ns
600
250
250
ns
50
50
50
ns
5
5
5 ms
1,000,000
Write
Cycles
Notes:1. This parameter is characterized and not 100% tested.
2.AC measurement conditions:
RL (connects to Vcc): 1.3KΩ
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
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).
VER 1.4 5