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25LC320-I/SN

存储器接口类型:SPI 存储器容量:32Kb (4K x 8) 工作电压:2.5V ~ 5.5V 存储器类型:Non-Volatile 32-Kbit(4K x 8bit),SPI接口,工作电压:2.5V to 5.5V

器件类别:存储    存储   

厂商名称:Microchip(微芯科技)

厂商官网:https://www.microchip.com

器件标准:

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器件参数
参数名称
属性值
是否无铅
不含铅
是否Rohs认证
符合
零件包装代码
SOIC
包装说明
SOP, SOP8,.25
针数
8
Reach Compliance Code
compliant
ECCN代码
EAR99
Factory Lead Time
16 weeks
其他特性
1000K ERASE/WRITE CYCLES; DATA RETENTION > 200 YEARS
最大时钟频率 (fCLK)
2 MHz
数据保留时间-最小值
200
耐久性
1000000 Write/Erase Cycles
JESD-30 代码
R-PDSO-G8
JESD-609代码
e3
长度
4.9 mm
内存密度
32768 bit
内存集成电路类型
EEPROM
内存宽度
8
湿度敏感等级
1
功能数量
1
端子数量
8
字数
4096 words
字数代码
4000
工作模式
SYNCHRONOUS
最高工作温度
85 °C
最低工作温度
-40 °C
组织
4KX8
封装主体材料
PLASTIC/EPOXY
封装代码
SOP
封装等效代码
SOP8,.25
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE
并行/串行
SERIAL
峰值回流温度(摄氏度)
260
电源
3/5 V
认证状态
Not Qualified
座面最大高度
1.75 mm
串行总线类型
SPI
最大待机电流
0.000001 A
最大压摆率
0.005 mA
最大供电电压 (Vsup)
5.5 V
最小供电电压 (Vsup)
2.5 V
标称供电电压 (Vsup)
5 V
表面贴装
YES
技术
CMOS
温度等级
INDUSTRIAL
端子面层
Matte Tin (Sn)
端子形式
GULL WING
端子节距
1.27 mm
端子位置
DUAL
处于峰值回流温度下的最长时间
40
宽度
3.9 mm
最长写入周期时间 (tWC)
5 ms
写保护
HARDWARE/SOFTWARE
Base Number Matches
1
文档预览
Not recommended for new designs –
Please use 25AA320A or 25LC320A.
25AA320/25LC320/25C320
32K SPI Bus Serial EEPROM
Device Selection Table
Part
Number
25AA320
25LC320
25C320
V
CC
Range
1.8-5.5V
2.5-5.5V
4.5-5.5V
Max. Clock
Frequency
1 MHz
2 MHz
3 MHz
Temp.
Ranges
I
I,E
I,E
Description:
The Microchip Technology Inc. 25AA320/25LC320/
25C320 (25XX320
*
) are 32 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 separate 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,
transitions on its inputs will be ignored, with the
exception of Chip Select, allowing the host to service
higher priority interrupts.
Features:
• Low-Power CMOS Technology:
- Write current: 3 mA maximum
- Read current: 500
μA,
typical
- Standby current: 500 nA, typical
• 4096 x 8 Bit Organization
• 32 Byte Page
• Write Cycle Time: 5 ms Maximum
• Self-Timed Erase and Write Cycles
• 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:
- Endurance: 1M E/W cycles
- Data retention: > 200 years
- ESD protection: > 4000V
• 8-Pin PDIP, SOIC and TSSOP Packages
• 14-Lead TSSOP Package
• Temperature Ranges Supported:
- Industrial (I):
-40°C to +85°C
- Automotive (E):
-40°C to +125°C
Block Diagram
STATUS
Register
HV Generator
I/O Control
Logic
Memory
Control
Logic
EEPROM
Array
XDEC
Page
Latches
SI
SO
CS
SCK
HOLD
WP
V
CC
V
SS
Sense Amp.
R/W Control
Y Decoder
Package Types
PDIP, SOIC
CS
SO
WP
V
SS
1
8
V
CC
HOLD
SCK
SI
HOLD
V
CC
CS
SO
1
TSSOP
8
SCK
SI
V
SS
WP
CS
SO
NC
NC
NC
WP
V
SS
1
2
3
4
5
6
7
TSSOP
14
13
12
11
10
9
8
V
CC
HOLD
NC
NC
NC
SCK
SI
25XX320
2
3
4
7
6
5
2
3
4
7
6
5
*25XX320 is used in this document as a generic part number for the 25AA320/25LC320/25C320 devices.
©
2008 Microchip Technology Inc.
25XX320
25XX320
DS21227F-page 1
25AA320/25LC320/25C320
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
(†)
V
CC
.............................................................................................................................................................................7.0V
All inputs and outputs w.r.t. V
SS
........................................................................................................ -0.6V to V
CC
+ 1.0V
Storage temperature .................................................................................................................................-65°C to 150°C
Ambient temperature under bias ...............................................................................................................-40°C to 125°C
ESD protection on all pins ..........................................................................................................................................4 kV
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for an
extended period of time may affect device reliability.
TABLE 1-1:
DC CHARACTERISTICS
Industrial (I): T
A
= -40°C to +85°C V
CC
= 1.8V to 5.5V
Automotive (E):T
A
= -40°C to +125°C V
CC
= 2.5V to 5.5V
Min.
2.0
0.7 V
CC
-0.3
-0.3
V
CC
-0.5
Max.
V
CC
+1
V
CC
+1
0.8
0.3 V
CC
0.2
±1
±1
7
Units
V
V
V
V
V
V
μA
μA
pF
Conditions
V
CC
2.7V
(Note)
V
CC
< 2.7V
(Note)
V
CC
2.7V
(Note)
V
CC
< 2.7V
(Note)
I
OL
= 1.0 mA, V
CC
< 2.5V
I
OH
= -400
μA
CS = V
CC
, V
IN
= V
SS TO
V
CC
CS = V
CC
, V
OUT
= V
SS TO
V
CC
T
A
= 25°C, CLK = 1.0 MHz,
V
CC
= 5.0V
(Note)
V
CC
= 5.5V; F
CLK
= 3.0 MHz;
SO = Open
V
CC
= 2.5V; F
CLK
= 2.0 MHz;
SO = Open
V
CC
= 5.5V
V
CC
= 2.5V
CS = V
CC
= 5.5V, Inputs tied to V
CC
or
V
SS
CS = V
CC
= 2.5V, Inputs tied to V
CC
or
V
SS
DC CHARACTERISTICS
Param.
No.
D1
D2
D3
D4
D5
D6
D7
D8
D9
Sym.
V
IH1
V
IH2
V
IL1
V
IL2
V
OL
V
OH
I
LI
I
LO
C
INT
Characteristics
High-level input
voltage
Low-level input
voltage
Low-level output
voltage
High-level output
voltage
Input leakage current
Output leakage
current
Internal Capacitance
(all inputs and
outputs)
D10
I
CC
Read Operating Current
1
500
mA
μA
D11
D12
I
CC
Write
I
CCS
Standby Current
5
3
5
1
mA
mA
μA
μA
Note:
This parameter is periodically sampled and not 100% tested.
DS21227F-page 2
©
2008 Microchip Technology Inc.
25AA320/25LC320/25C320
TABLE 1-2:
AC CHARACTERISTICS
Industrial (I):
Automotive (E):
Characteristic
Clock Frequency
Min.
100
250
500
150
250
475
500
30
50
50
50
100
100
150
230
475
150
230
475
50
50
0
100
100
200
100
100
200
100
150
200
100
150
200
1M
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
Max.
3
2
1
2
2
150
230
200
250
5
Units
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
CC
= 1.8V to 5.5V
V
CC
= 2.5V to 5.5V
Conditions
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
(Note 1)
(Note 1)
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
(Note 1)
V
CC
= 4.5V to 5.5V
(Note 1)
V
CC
= 2.5V to 5.5V
(Note 1)
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
(Note 1)
V
CC
= 2.5V to 5.5V
(Note 1)
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
(Note 2)
AC CHARACTERISTICS
Param.
No.
1
Sym.
F
CLK
2
T
CSS
CS Setup Time
3
T
CSH
CS Hold Time
4
5
T
CSD
T
SU
CS Disable Time
Data Setup Time
6
T
HD
Data Hold Time
7
8
9
T
R
T
F
T
HI
CLK Rise Time
CLK Fall Time
Clock High Time
μ
s
μ
s
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
E/W
Cycles
10
T
LO
Clock Low Time
11
12
13
T
CLD
T
CLE
T
V
Clock Delay Time
Clock Enable Time
Output Valid from
Clock Low
Output Hold Time
Output Disable Time
14
15
T
HO
T
DIS
16
T
HS
HOLD Setup Time
17
T
HH
HOLD Hold Time
18
T
HZ
HOLD Low to Output
High-Z
HOLD High to Output
Valid
Internal Write Cycle
Time
Endurance
19
T
HV
20
21
T
WC
Note 1:
This parameter is periodically sampled and not 100% tested.
2:
This parameter is not tested but established 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.
©
2008 Microchip Technology Inc.
DS21227F-page 3
25AA320/25LC320/25C320
FIGURE 1-1:
CS
16
SCK
18
SO
n+2
n+1
n
High-Impedance
5
n
n-1
19
n
n-1
17
16
17
HOLD TIMING
Don’t Care
SI
HOLD
n+2
n+1
n
FIGURE 1-2:
SERIAL INPUT TIMING
4
CS
2
Mode
1,1
SCK Mode
0,0
5
SI
MSB in
6
LSB in
7
11
8
3
12
SO
High-Impedance
FIGURE 1-3:
SERIAL OUTPUT TIMING
CS
9
SCK
13
14
SO
MSB out
15
ISB out
10
3
Mode
1,1
Mode
0,0
SI
Don’t Care
DS21227F-page 4
©
2008 Microchip Technology Inc.
25AA320/25LC320/25C320
TABLE 1-3:
AC Waveform:
V
LO
= 0.2V
V
HI
= V
CC
- 0.2V
V
HI
= 4.0V
Input
Output
Note 1:
For
V
CC
4.0V
2:
For
V
CC
> 4.0V
(Note 1)
(Note 2)
0.5 V
CC
0.5 V
CC
SO
1.8 KΩ
100 pF
2.25 KΩ
AC TEST CONDITIONS
FIGURE 1-4:
AC TEST CIRCUIT
V
CC
Timing Measurement Reference Level
©
2008 Microchip Technology Inc.
DS21227F-page 5
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