ACE24C32 Datasheet, PDF (6/16 Pages) ACE Technology Co., LTD. – Two-wire Serial EEPROM

Technology
ACE24C32/64
Two-wire Serial EEPROM
AC Characteristics
Applicable over recommended operating range from:
T_A = -40℃ to +85℃, V_CC = +1.7V to +5.5V, CL = 1 TTL Gate and 100 pF (unless otherwise noted). Test conditions are listed
in Note 2.
Symbol
Parameter
1.7-volt 2.5-volt 5.5-volt
Units
Min Max Min Max Min Max
f_SCL
T_LOW
T_HIGH
t_I1
T_AA
T_BUF1
Clock Frequency, SCL
400
1000
1000 kHz
Clock Pulse Width Low
1.3
0.45
0.4
µs
Clock Pulse Width High
0.6
0.45
0.4
µs
100
50
50
Clock Low to Data Out Valid
0.1 0.9 0.05 0.55 0.05 0.55 µs
Time the bus must be free before a new
1.3
0.5
0.5
µs
transmission can Start
T_HD.STA Start Hold Time
T_SU.STA Start Setup Time
T_HD.DAT Data In Hold Time
T_SU.DAT Data In Setup Time
T_R
Inputs Rise Time
T_F
Inputs Fall Time
T_SU.STO Stop Setup Time
T_DH
Data Out Hold Time
T_WR
Write Cycle Time
Endurance
(1)
3.6V, 25℃, Page Mode
0.6
0.25
0.25
µs
0.6
0.25
0.25
µs
0
0
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
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.
VER 1.3 6