ACE24C32B Datasheet, PDF (11/18 Pages) ACE Technology Co., LTD. – Two-wire Serial EEPROM

ACE24C32/64B
Two-wire Serial EEPROM
AC Characteristics
Applicable over recommended operating range from : TA = -40℃ to +85℃, VCC = +1.7V to +5.5V, CL=1 TTL Gate and 100 pF
(unless otherwise noted).
Symbol
Parameter
1.7V≦V_CC<2.5V
Min Typ Max
2.5V≦V_CC≦5.5V
Units
Min Typ Max
f_SCL
T_LOW
T_HIGH
T_I
T_AA
T_BUF
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Noise Suppression Time
Clock Low to Data Out Valid
Time the bus must be free before a
new transmission can Start
1.2
0.6
0.05
1.2
400
0.6
0.4
50
0.9 0.05
0.5
1000 kHz
µs
µs
40
ns
0.55 µs
µs
T_HD.STA
Start Hold Time
0.6
0.25
µs
T_SU.STA
Start Setup Time
0.6
0.25
µs
T_HD.DAT
Data In Hold Time
0
0
µs
T_SU.DAT
Data In Setup Time
100
100
ns
T_R
Inputs Rise Time
0.3
0.3 µs
T_F
Inputs Fall Time
300
100 ns
T_SU.STO
Stop Setup Time
0.6
0.25
µs
T_DH
Data Out Hold Time
50
50
ns
T_WR Write Cycle Time (for 04B/16B)
1.5
5
1.5
5
ms
Endurance 5.0V, 25℃, Page Mode
1M
Write
Cycles
Notes:1. This parameter is characterized and not 100% tested.
2.AC measurement conditions:
RL (connects to Vcc): 1.3kΩ(2.5V,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
The value of RL should be concerned according to the actual loading on the user’s system.
VER 1.3 11