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参数资料
| 型号： | DS1270AB-70 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Static RAM |
| 英文描述： | 2M X 8 NON-VOLATILE SRAM MODULE, 70 ns, PDMA36 |
| 封装： | 0.740 INCH, DIP-36 |
| 文件页数： | 1/8页 |
| 文件大小： | 193K |
| 代理商： | DS1270AB-70 |
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FEATURES
§ 5 years minimum data retention in the
absence of external power
§ Data is automatically protected during power
loss
§ Unlimited write cycles
§ Low-power CMOS operation
§ Read and write access times as fast as 70 ns
§ Lithium energy source is electrically
disconnected to retain freshness until power is
applied for the first time
§ Full ±10% VCC operating range (DS1270Y)
§ Optional ±5% VCC operating range
(DS1270AB)
§ Optional industrial temperature range of
-40
°C to +85°C, designated IND
PIN ASSIGNMENT
PIN DESCRIPTION
A0 – A20
- Address Inputs
DQ0 - DQ7
- Data In/Data Out
CE
- Chip Enable
WE
- Write Enable
OE
- Output Enable
VCC
- Power (+5V)
GND
- Ground
NC
- No Connect
DESCRIPTION
The DS1270 16M Nonvolatile SRAMs are 16,777,216-bit, fully static nonvolatile SRAMs organized as
2,097,152 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control
circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs,
the lithium energy source is automatically switched on and write protection is unconditionally enabled to
prevent data corruption. There is no limit on the number of write cycles which can be executed and no
additional support circuitry is required for microprocessor interfacing.
DS1270Y/AB
16M Nonvolatile SRAM
www.maxim-ic.com
13
1
2
3
4
5
6
7
8
9
10
11
12
14
35
36-Pin ENCAPSULATED PACKAGE
740-mil EXTENDED
A18
A14
A7
A6
A5
A4
A3
A2
A0
A1
VCC
A19
NC
A15
A17
WE
A13
A8
A9
A11
OE
A10
DQ7
CE
36
34
33
32
31
30
29
28
27
26
25
23
24
A20
A16
A12
NC
DQ0
DQ1
15
16
22
21
DQ6
DQ5
17
18
GND
DQ2
DQ3
DQ4
19
20
相关PDF资料 |
PDF描述 |
|---|---|
| DS1284Q | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| DS12885Q | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| DS1330AB | 32K X 8 NON-VOLATILE SRAM MODULE, 70 ns, DMA34 |
| DS1330Y | 32K X 8 NON-VOLATILE SRAM MODULE, 70 ns, DMA34 |
| DS1330W | 32K X 8 NON-VOLATILE SRAM MODULE, 150 ns, DMA34 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1270AB-70# | 功能描述:NVRAM 16M NV SRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| DS1270AB-70IND | 功能描述:NVRAM 16M NV SRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| DS1270AB-70IND# | 功能描述:NVRAM 16M NV SRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| DS1270W-100 | 功能描述:NVRAM 3.3V 16M NV SRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| DS1270W-100# | 功能描述:NVRAM 3.3V 16M NV SRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
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