参数资料
型号: 25AA640AT-I/SN
厂商: Microchip Technology
文件页数: 4/36页
文件大小: 0K
描述: IC EEPROM 64KBIT 10MHZ 8SOIC
标准包装: 3,300
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 64K (8K x 8)
速度: 10MHz
接口: SPI 3 线串行
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 带卷 (TR)
其它名称: 25AA640AT-I/SNTR
25AA640A/25LC640A
TABLE 1-2:
AC CHARACTERISTICS (CONTINUED)
AC CHARACTERISTICS
Industrial (I): T A = -40°C to +85°C
Automotive (E): T A = -40°C to +125°C
V CC = 1.8V to 5.5V
V CC = 2.5V to 5.5V
Param.
No.
17
Sym.
T HH
Characteristic
HOLD hold time
Min.
20
Max.
Units
ns
Test Conditions
4.5V ?? Vcc ? 5.5V
40
80
ns
ns
2.5V ?? Vcc ? 4.5V
1.8V ?? Vcc ? 2.5V
18
T HZ
HOLD low to output
High-Z
30
60
ns
ns
4.5V ?? Vcc ? 5.5V (Note 1)
2.5V ?? Vcc ? 4.5V (Note 1)
160
ns
1.8V ?? Vcc ? 2.5V (Note 1)
19
T HV
HOLD high to output valid
30
ns
4.5V ?? Vcc ? 5.5V
60
160
ns
ns
2.5V ?? Vcc ? 4.5V
1.8V ?? Vcc ? 2.5V
20
21
T WC
Internal write cycle time
Endurance
1M
5
ms
E/W
(N OTE 3)
(N OTE 2)
Cycles
Note 1: This parameter is periodically sampled and not 100% tested.
2: This parameter is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance? Model which can be obtained from Microchip’s web site
at www.microchip.com.
3: T WC begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle
is complete.
TABLE 1-3:
AC Waveform:
AC TEST CONDITIONS
V LO = 0.2V
V HI = V CC - 0.2V
V HI = 4.0V
C L = 100 pF
(Note 1)
(Note 2)
Timing Measurement Reference Level
Input
Output
Note 1: For V CC ? 4.0V.
2: For V CC > 4.0V.
DS21830E-page 4
0.5 V CC
0.5 V CC
? 2003-2012 Microchip Technology Inc.
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