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參數(shù)資料
| 型號： | STK1743-D25 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | NV TIME 8K X 8 AUTOSTORE NVSRAM WITH REAL - TIME CLOCK |
| 中文描述： | 內(nèi)華達(dá)州時間8K的乘八與實時自動存儲非易失性SRAM -時間時鐘 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 253K |
| 代理商： | STK1743-D25 |
March 1999
7-1
STK1743
nvTime
8K x 8
AutoStore
nvSRAM
with Real-Time Clock
FEATURES
Data Integrity of Simtek nvSRAM Combined
with Full-Featured Real-Time Clock
Stand-Alone Nonvolatile Memory and Time-
Keeping Solution
—
No Other Parts Required
No Batteries to Fail
Fast 25ns, 35ns and 45ns Access Times
Software- and
AutoStore
-Controlled
Nonvolatile Cycles
Year 2000 Compliant with Leap Year
Compensation
24-Hour BCD Format
100-Year Data Retention over Full Industrial
Temperature Range
Full 30-Day RTC Operation on Each Power
Loss
Single 5V
±
10% Power Supply
DESCRIPTION
The Simtek STK1743
DIP
module houses 64Kb of
nonvolatile static
RAM
, a real-time clock (
RTC
) with
crystal and a high-value capacitor to support sys-
tems that require high reliability and ease of manu-
facturing.
READ
and
WRITE
access to all
RTC
functions and the memory is the same as a conven-
tional x 8
SRAM
. The highest eight addresses of the
RAM
support clock registers for centuries, years,
months, dates, days, hours, minutes and seconds.
Independent data resides in the integral
EEPROM
at
all times. Automatic
RECALL
on power up transfers
the
EEPROM
data to the
SRAM
, while an automatic
STORE
on power down transfers
SRAM
data to the
EEPROM
. A software
RECALL
and
STORE
are also
possible on user command. nvTime
allows unlim-
ited accesses to
SRAM
, unlimited
RECALL
s and 10
6
STORE
s.
BLOCK DIAGRAM
EEPROM ARRAY
128 x 512
STORE
RECALL
COLUMN I/O
COLUMN DEC
STATIC RAM
ARRAY
128 x 512
R
I
STORE/
RECALL
CONTROL
POWER
CONTROL
A
6
A
7
A
8
A
11
A
12
DQ
0
DQ
1
DQ
2
DQ
3
DQ
4
DQ
5
DQ
6
DQ
7
SOFTWARE
DETECT
V
CC
A
0
-
A
12
G
E
W
A
9
A
10
A
3
A
2
A
0
A
1
A
4
A
5
RTC
MUX
A
0
-
A
12
PIN CONFIGURATIONS
NC
A
12
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
DQ
0
DQ
1
DQ
2
V
SS
V
CC
W
NC
A
8
A
9
A
11
G
A
10
E
DQ
7
DQ
6
DQ
5
DQ
4
DQ
3
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
600 mil
Dual
In-Line
Module
PIN NAMES
A
0
- A
12
Address Inputs
W
Write Enable
DQ
0
- DQ
7
Data In/Out
E
Chip Enable
G
Output Enable
V
CC
Power (+ 5V)
V
SS
Ground
ADVANCE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| STK1743-D45I | NV TIME 8K X 8 AUTOSTORE NVSRAM WITH REAL - TIME CLOCK |
| STK1743-D25I | NV TIME 8K X 8 AUTOSTORE NVSRAM WITH REAL - TIME CLOCK |
| STK1743-D35 | NV TIME 8K X 8 AUTOSTORE NVSRAM WITH REAL - TIME CLOCK |
| STK1743-D35I | NV TIME 8K X 8 AUTOSTORE NVSRAM WITH REAL - TIME CLOCK |
| STK1743-D45 | NV TIME 8K X 8 AUTOSTORE NVSRAM WITH REAL - TIME CLOCK |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STK17T88-RF25 | 功能描述:NVRAM 32Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
| STK17T88-RF25I | 功能描述:NVRAM 32Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
| STK17T88-RF25ITR | 功能描述:NVRAM 32Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
| STK17T88-RF25TR | 功能描述:NVRAM 32Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
| STK17T88-RF45 | 功能描述:NVRAM 32Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
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