收藏本站
19-5589; Rev 10/10
DS1345Y/AB
1024k Nonvolatile SRAM
with Battery Monitor
www.maxim-ic.com
FEATURES
PIN ASSIGNMENT
?
10 years minimum data retention in the
BW
A15
A16
4
RST
V CC
WE
OE
CE
DQ7
DQ6
DQ5
A5
12
DQ4
DQ3
GND V BAT
DQ2
DQ1
DQ0
GND
?
?
?
?
?
?
?
?
?
absence of external power
Data is automatically protected during power
loss
Power supply monitor resets processor when
V CC power loss occurs and holds processor in
reset during V CC ramp-up
Battery monitor checks remaining capacity
daily
Read and write access times of 70ns
Unlimited write cycle endurance
Typical standby current 50 μ A
Upgrade for 128k x 8 SRAM, EEPROM or
Flash
Lithium battery is electrically disconnected to
retain freshness until power is applied for the
first time
Full ± 10% V CC operating range (DS1345Y)
or optional ± 5% V CC operating range
(DS1345AB)
1 34 NC
2 33 NC
3 32 A14
31 A13
5 30 A12
6 29 A11
7 28 A10
8 27 A9
9 26 A8
10 25 A7
11 24 A6
23
13 22 A4
14 21 A3
15 20 A2
16 19 A1
17 18 A0
34-Pin PowerCap Module (PCM)
(Uses DS9034PC+ or DS9034PCI+ PowerCap)
PIN DESCRIPTION
A0 – A16 - Address Inputs
DQ0 – DQ7 - Data In/Data Out
CE - Chip Enable
W E - Write Enable
?
?
Optional industrial temperature range of
-40 ° C to +85 ° C, designated IND
PowerCap Module (PCM) package
OE
RS T
BW
- Output Enable
- Reset Output
- Battery Warning Output
-
-
-
Directly surface-mountable module
Replaceable snap-on PowerCap provides
lithium backup battery
Standardized pinout for all nonvolatile
V CC
GND
NC
- Power (+5V)
- Ground
- No Connect
(NV) SRAM products
-
Detachment feature on PowerCap allows
easy removal using a regular screwdriver
DESCRIPTION
The DS1345 1024k NV SRAMs are 1,048,576-bit, fully static, NV SRAMs organized as 131,072 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. Additionally, the DS1345 devices have dedicated circuitry for monitoring the status of
V CC and the status of the internal lithium battery. DS1345 devices in the PowerCap module package are
directly surface mountable and are normally paired with a DS9034PC PowerCap to form a complete NV
SRAM module. The devices can be used in place of 128k x 8 SRAM, EEPROM, or Flash components.
1 of 10
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
DS1350WP-100IND+ IC NVSRAM 4MBIT 100NS 34PCM
DS1350YP-70IND+ IC NVSRAM 4MBIT 70NS 34PCM
DS1609-50+ IC SRAM 2KBIT 50NS 24DIP
DS2016R-100+ IC SRAM 16KBIT 100NS 24SOIC
DS2030L-100# IC NVSRAM 256KBIT 100NS 256BGA
DS2030W-100# IC NVSRAM 256KBIT 100NS 256BGA
DS2030Y-70# IC NVSRAM 256KBIT 70NS 256BGA
DS2045L-100# IC NVSRAM 1MBIT 100NS 256BGA
相关代理商/技术参数
DS1345YP-C01 功能描述:NVRAM 1024K NV SRAM w/Battery Monitor 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
DS1346 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Current, SPI-Compatible Real-Time Clocks
DS1346T+ 功能描述:实时时钟 Low Power SPI RTC For 6Pf Crystal RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube
DS1346T+T&R 制造商:Maxim Integrated Products 功能描述:LOW POWER SPI RTC FOR 6PF CRYSTAL - Tape and Reel
DS1346T+T&R 功能描述:实时时钟 Low Power SPI RTC For 6Pf Crystal RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube
DS1347 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Current, SPI-Compatible Real-Time Clock
DS1347_1202 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Current, SPI-Compatible Real-Time Clock
DS1347_13 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Current, SPI-Compatible Real-Time Clock