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参数资料
| 型号： | STK16C88-S45I |
| 英文描述： | NVRAM (EEPROM Based) |
| 中文描述： | NVRAM中（EEPROM的基础） |
| 文件页数： | 1/9页 |
| 文件大小： | 95K |
| 代理商： | STK16C88-S45I |
July 1999
4-73
STK16C68
8K x 8
AutoStorePlus
nvSRAM
QuantumTrap
CMOS
Nonvolatile Static RAM
FEATURES
Transparent Data Save on Power Down
Internal Capacitor Guarantees
AutoStore
Regardless of Power-Down Slew Rate
Nonvolatile Storage without Battery Problems
Directly Replaces 8K x 8 Static RAM, Battery-
Backed RAM or EEPROM
20ns, 25ns, 35ns and 45ns Access Times
STORE
to EEPROM Initiated by Software or
AutoStorePlus
on Power Down
RECALL
to SRAM Initiated by Software or
Power Restore
10mA Typical I
CC
at 200ns Cycle Time
Unlimited READ, WRITE and
RECALL
Cycles
1,000,000
STORE
Cycles to EEPROM
100-Year Data Retention over Full Industrial
Temperature Range
No Data Loss from Undershoot
Commercial and Industrial Temperatures
28-Pin 600 mil PDIP and 350 mil SOIC Packages
DESCRIPTION
The STK16C68 is a fast
SRAM
with a nonvolatile
EEPROM
element incorporated in each static memory
cell. The
SRAM
can be read and written an unlimited
number of times, while independent nonvolatile data
resides in
EEPROM
. Data transfers from the
SRAM
to
the
EEPROM
(the
STORE
operation) can take place
automatically on power down. An internal capacitor
guarantees the
STORE
operation regardless of power-
down slew rate. Transfers from the
EEPROM
to the
SRAM
(the
RECALL
operation) take place automatically
on restoration of power. Initiation of
STORE
and
RECALL
cycles can also be controlled by entering con-
trol sequences on the
SRAM
inputs. The STK16C68 is
pin-compatible with 8k x 8
SRAM
s and battery-backed
SRAM
s, allowing direct substitution while enhancing
performance. The STK12C68, which uses an external
capacitor, and the STK15C68, which uses charge
stored in system capacitance, are alternatives for sys-
tems needing
AutoStore
operation.
BLOCK DIAGRAM
COLUMN I/O
COLUMN DEC
STATIC RAM
ARRAY
128 x 512
R
I
EEPROM ARRAY
128 x 512
STORE/
RECALL
CONTROL
STORE
RECALL
POWER
CONTROL
A
5
A
6
A
7
A
9
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
8
A
10
A
3
A
2
A
0
A
1
A
4
INTERNAL
CAPACITOR
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
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
28 - 600 PDIP
28 - 350 SOIC*
*see order info
相关PDF资料 |
PDF描述 |
|---|---|
| STK16C88-W20 | SCR Thyristor; SCR Type:Standard Gate; Peak Repetitive Off-State Voltage, Vdrm:800V; On-State RMS Current, IT(rms):55A; Peak Non Repetitive Surge Current, Itsm:650A; Gate Trigger Current Max, Igt:40mA |
| STK16C88-W25 | NVRAM (EEPROM Based) |
| STK16C88-W25I | SCR Thyristor; SCR Type:Standard Gate; Peak Repetitive Off-State Voltage, Vdrm:800V; On-State RMS Current, IT(rms):55A; Peak Non Repetitive Surge Current, Itsm:650A; Gate Trigger Current Max, Igt:40uA |
| STK16C88-W35 | SCR Thyristor; SCR Type:Standard Gate; Peak Repetitive Off-State Voltage, Vdrm:800V; On-State RMS Current, IT(rms):65A; Peak Non Repetitive Surge Current, Itsm:950A; Gate Trigger Current Max, Igt:50uA |
| STK16C88-W35I | SCR Thyristor; SCR Type:Standard Gate; Peak Repetitive Off-State Voltage, Vdrm:800V; On-State RMS Current, IT(rms):70A; Peak Non Repetitive Surge Current, Itsm:950A; Gate Trigger Current Max, Igt:50mA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| STK16C88-WF25 | 功能描述:NVRAM 32Kbx8 4.5-5.5V AutoStorePlus 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 |
| STK16C88-WF25I | 功能描述:NVRAM 32Kbx8 4.5-5.5V AutoStorePlus 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 |
| STK16C88-WF25ITR | 制造商:Cypress Semiconductor 功能描述:STK16C88-WF25ITR - Tape and Reel |
| STK16C88-WF25TR | 制造商:Cypress Semiconductor 功能描述:STK16C88-WF25TR - Tape and Reel |
| STK16C88-WF45 | 功能描述:NVRAM 32Kbx8 4.5-5.5V AutoStorePlus 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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