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参数资料
| 型号： | DS1212Q |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/7页 |
| 文件大小： | 0K |
| 描述： | IC CONTROLLER NV 16-CHIP 28-PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 37 |
| 控制器类型： | 非易失性 RAM |
| 电源电压： | 4.75 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 28-LCC（J 形引线） |
| 供应商设备封装： | 28-PLCC（11.51x11.51） |
| 包装： | 管件 |
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111899
FEATURES
Converts full CMOS RAM into nonvolatile
memory
Unconditionally write protects when VCC is
out of tolerance
Automatically switches to battery when
power-fail occurs
4 to 16 decoder provides control for up to 16
CMOS RAMs
Consumes less than 100 nA of battery
current
Tests battery condition on power-up
Provides for redundant batteries
Power fail signal can be used to interrupt
processor on power failure
Optional 5% or 10% power-fail detection
Optional 28-pin PLCC surface mount
package
Optional industrial temperature range of
-40°C to +85°C
PIN DESCRIPTION
A, B, C, D
- Address Inputs
CE
- Chip Enable
CE0
- CE15
- Chip Enable Outputs
GND
- Ground
VBAT1
- + Battery 1
VBAT2
- + Battery 2
TOL
- Power Supply Tolerance
VCCI
- +5V Supply
VCCO
- RAM Supply
PF
- Power Fail
PIN ASSIGNMENT
DESCRIPTION
The DS1212 Nonvolatile Controller x16 Chip is a CMOS circuit that solves the application problem of
converting CMOS RAMs into nonvolatile memories. Incoming power is monitored for an out-of-
tolerance condition. When such a condition is detected, the chip enables are inhibited to accomplish write
protection and the battery is switched on to supply the RAMs with uninterrupted power. Special circuitry
uses a low-leakage CMOS process that affords precise voltage detection at extremely low battery
consumption.
DS1212
Nonvolatile Controller x 16 Chip
www.dalsemi.com
VBAT1
VCCO
TOL
PF
CE15
CE14
CE13
CE12
CE11
D
C
B
A
GND
VCCI
VBAT2
CE
CE0
CE1
CE2
CE3
CE4
CE5
CE6
CE7
CE8
CE9
CE10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28-Pin DIP (600-mil)
See Mech. Drawings Section
28-Pin PLCC
See Mech. Drawings Section
CE15
CE14
CE13
CE12
CE11
D
C
PF
TOL
VC
C
O
VB
AT1
VC
C
I
VB
AT2
CE
25
24
23
22
21
20
19
5
6
7
8
9
10
11
4
3
2
1
28
27
26
12
13
14
15
16
17
18
CE0
CE1
CE2
CE3
CE4
CE5
CE6
B
A
GND
CE
10
CE
9
CE
8
CE
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1212QN | 功能描述:IC CONTROLLER NV 16CH IND 28PLCC RoHS:否 类别:集成电路 (IC) >> 存储器 - 控制器 系列:- 标准包装:45 系列:- 控制器类型:静态 RAM（SRAM） 电源电压:4.5 V ~ 5.5 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
| DS1212Q-N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Nonvolatile Controller |
| DS-1212ZJ | 制造商:Hikvision USA 功能描述:Wall Mount for Box Camera - 6.75" X 3.75" X 2.5" |
| DS-1212ZJ-S | 制造商:Hikvision USA 功能描述:Camera Mounting BracketSilver 2.956Inx3.74Inx7.40In 制造商:HIKVISION 功能描述:CAMERA MOUNTING BRACKET SILVER 2.956INX3.74INX7.40IN |
| DS1213 | 制造商:Maxim Integrated Products 功能描述: |
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