- 您现在的位置：买卖IC网 > PDF目录19966 > DS1249Y-85IND (Maxim Integrated)IC NVSRAM 2MBIT 85NS 32DIP PDF资料下载
参数资料
| 型号： | DS1249Y-85IND |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC NVSRAM 2MBIT 85NS 32DIP |
| 标准包装： | 11 |
| 格式 - 存储器： | RAM |
| 存储器类型： | NVSRAM（非易失 SRAM） |
| 存储容量： | 2M (256K x 8) |
| 速度： | 85ns |
| 接口： | 并联 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-DIP 模块（0.600"，15.24mm） |
| 供应商设备封装： | 32-EDIP |
| 包装： | 管件 |
19-5631; Rev 11/10
DS1249Y/AB
2048k Nonvolatile SRAM
www.maxim-ic.com
FEATURES
PIN ASSIGNMENT
?
?
?
?
?
?
10 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 of 70 ns
Lithium energy source is electrically
disconnected to retain freshness until power is
applied for the first time
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
1
2
3
4
5
6
7
8
9
10
11
12
32
31
30
29
28
27
26
25
24
23
22
21
V CC
A15
A17
WE
A13
A8
A9
A1 1
OE
A1 0
CE
DQ7
?
?
?
?
Full ± 10% V CC operating range (DS1249Y)
Optional ± 5% V CC operating range
(DS1249AB)
Optional industrial temperature range of
-40 ° C to +85 ° C, designated IND
JEDEC standard 32-pin DIP package
DQ0 13 20 DQ6
DQ1 14 19 DQ5
DQ2 15 18 DQ4
GND 16 17 DQ3
32-Pin ENCAPSULATED PACKAGE
740-mil EXTENDED
PIN DESCRIPTION
A0 - A17
- Address Inputs
DQ0 - DQ7
- Data In/Data Out
- Chip Enable
CE
- Write Enable
W E
- Output Enable
OE
V CC
- Power (+5V)
GND
- Ground
NC
- No Connect
DESCRIPTION
The DS1249 2048k Nonvolatile SRAMs are 2,097,152-bit, fully static, nonvolatile SRAMs organized as
262,144 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry
which constantly monitors V CC 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.
1 of 9
相关PDF资料 |
PDF描述 |
|---|---|
| VI-J14-CY-B1 | CONVERTER MOD DC/DC 48V 50W |
| VE-26H-CX-F4 | CONVERTER MOD DC/DC 52V 75W |
| DS1250YP-100 | IC NVSRAM 4MBIT 100NS 34PCM |
| P-170SCSF8 | BATTERY NICAD PACK 9.6V 1700MAH |
| P-170SCSF7 | BATTERY NICAD PACK 8.4V 1700MAH |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1249Y-85-IND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:NVRAM (Battery Based) |
| DS1249Y-85IND# | 功能描述:NVRAM 2048K 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 |
| DS-1250 | 制造商:EZ Digital 功能描述:Oscilloscope 250 MHz 2-Channel Digital Storage Oscilloscope |
| DS1-25-0001 | 功能描述:固定电感器 DS Storage choke 1.4A RoHS:否 制造商:AVX 电感:10 uH 容差:20 % 最大直流电流:1 A 最大直流电阻:0.075 Ohms 工作温度范围:- 40 C to + 85 C 自谐振频率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接类型:SMD/SMT 封装 / 箱体:6.6 mm x 4.45 mm |
| DS1-25-0002 | 功能描述:固定电感器 DS Storage choke 2A RoHS:否 制造商:AVX 电感:10 uH 容差:20 % 最大直流电流:1 A 最大直流电阻:0.075 Ohms 工作温度范围:- 40 C to + 85 C 自谐振频率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接类型:SMD/SMT 封装 / 箱体:6.6 mm x 4.45 mm |
发布紧急采购，3分钟左右您将得到回复。