參數(shù)資料
型號: AT24C256CW-SH-B
廠商: ATMEL CORP
元件分類: PROM
英文描述: 32K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
封裝: 0.20 INCH, LEAD AND HALOGEN FREE, PLASTIC, EIAJ, SOIC-8
文件頁數(shù): 19/23頁
文件大?。?/td> 412K
代理商: AT24C256CW-SH-B
AT24C256C
5
8568A–SEEPR–11/08
Table 4.
AC Characteristics (Industrial Temperature)
Applicable over recommended operating range from:
T
AI = 40°C to +85°C, VCC = +1.8V to +5.5V, CL = 100 pF (unless otherwise noted). Test conditions are listed in Note 2.
Symbol
Parameter
1.8-volt
2.5, 5.0-volt
Units
Min
Max
Min
Max
f
SCL
Clock Frequency, SCL
400
1000
kHz
t
LOW
Clock Pulse Width Low
1.3
0.4
μs
t
HIGH
Clock Pulse Width High
0.6
0.4
μs
t
I
Noise Suppression Time
(1)
100
50
ns
t
AA
Clock Low to Data Out Valid
0.05
0.9
0.05
0.55
μs
t
BUF
Time the bus must be free before a new transmission can start
(1)
1.3
0.5
μs
t
HD.STA
Start Hold Time
0.6
.25
μs
t
SU.STA
Start Set-up Time
0.6
0.25
μs
t
HD.DAT
Data In Hold Time
0
μs
t
SU.DAT
Data In Set-up Time
100
ns
t
R
Inputs Rise Time
(1)
0.3
μs
t
F
Inputs Fall Time
(1)
300
100
ns
t
SU.STO
Stop Set-up Time
0.6
0.25
μs
t
DH
Data Out Hold Time
50
ns
t
WR
Write Cycle Time
5
ms
Endurance
(1)
25°C, Page Mode, 3.3V
1,000,000
Write
Cycles
Note:
1. This parameter is ensured by characterization and is not 100% tested.
2.
AC measurement conditions:
R
L (connects to VCC): 1.3 k
Ω (2.5V, 5.5V), 10 kΩ (1.8V)
Input pulse voltages: 0.3 V
CC to 0.7 VCC
Input rise and fall times:
≤ 50 ns
Input and output timing reference voltages: 0.5 V
CC
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