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参数资料
| 型号： | 25AA640AT-I/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 1/36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 |
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25AA640A/25LC640A
64K SPI Bus Serial EEPROM
Device Selection Table
Part Number
25LC640A
25AA640A
V CC Range
2.5-5.5V
1.8-5.5V
Page Size
32 Byte
32 Byte
Temp. Ranges
I,E
I
Packages
P, SN, ST, MS, MF, MNY
P, SN, ST, MS, MF, MNY
Features:
? Max. Clock 10 MHz
? Low-Power CMOS Technology:
- Max. Write Current: 5 mA at 5.5V, 10 MHz
- Read Current: 5 mA at 5.5V, 10 MHz
- Standby Current: 1 ? A at 5.5V
? 8192 x 8-bit Organization
? 32 Byte Page
? Self-Timed Erase and Write Cycles (5 ms max.)
? Block Write Protection:
- Protect none, 1/4, 1/2 or all of array
? Built-In Write Protection:
- Power-on/off data protection circuitry
- Write enable latch
- Write-protect pin
? Sequential Read
? High Reliability:
Description:
The Microchip Technology Inc. 25AA640A/25LC640A
(25XX640A * ) are 64 kbit Serial Electrically Erasable
PROMs. The memory is accessed via a simple Serial
Peripheral Interface (SPI) compatible serial bus. The
bus signals required are a clock input (SCK) plus sep-
arate data in (SI) and data out (SO) lines. Access to the
device is controlled through a Chip Select (CS) input.
Communication to the device can be paused via the
hold pin (HOLD). While the device is paused, transi-
tions on its inputs will be ignored, with the exception of
Chip Select, allowing the host to service higher priority
interrupts.
The 25XX640A is available in standard packages
including 8-lead PDIP and SOIC, and advanced
packaging including 8-lead MSOP, 8-lead TSSOP, DFN
and TDFN.
Package Types (not to scale)
- Endurance: 1,000,000 erase/write cycles
- Data retention: > 200 years
- ESD protection: > 4000V
TSSOP/MSOP
(ST, MS)
PDIP/SOIC
(P, SN)
? Temperature Ranges Supported:
- Industrial (I): -40 ? C to +85 ? C
- Automotive (E): -40°C to +125°C
CS
SO
WP
V SS
1
2
3
4
8
7
6
5
V CC
HOLD
SCK
SI
CS
SO
WP
V SS
1
2
3
4
8
7
6
5
V CC
HOLD
SCK
SI
X-Rotated TSSOP
(X/ST)
DFN/TDFN
(MF/MNY)
HOLD
V CC
CS
SO
1
2
3
4
8
7
6
5
SCK
SI
V SS
WP
CS
SO
WP
V SS
1
2
3
4
8
7
6
5
V CC
HOLD
SCK
SI
* 25XX640A is used in this document as a generic part number
for the 25AA640A, 25LC640A devices.
? 2003-2012 Microchip Technology Inc.
DS21830E-page 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 25AA640AX | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K SPI Bus Serial EEPROM |
| 25AA640AX-E/MF | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K SPI Bus Serial EEPROM |
| 25AA640AX-E/MNY | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K SPI Bus Serial EEPROM |
| 25AA640AX-E/MS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K SPI Bus Serial EEPROM |
| 25AA640AX-E/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K SPI Bus Serial EEPROM |
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