參數(shù)資料
型號： STK17CA8-W45I
元件分類： 時鐘/數(shù)據(jù)恢復及定時提取
英文描述： REAL TIME CLOCK, PDIP40
封裝： 0.600 INCH, DIP-40
文件頁數(shù)： 1/22頁
文件大?。?/td> 579K
代理商： STK17CA8-W45I
June 2003
1
Document Control # ML0023 rev 0.2
STK17CA8
nvTime Event Data Recorder
128K x 8 AutoStorenvSRAM
with Real-Time Clock
Product Preview
FEATURES
Data Integrity of Simtek nvSRAM Combined
with Full-Featured Real-Time Clock
25ns, 35ns and 45ns Access Times
Software or AutoStoreSTORE to Quan-
tumTrap Nonvolatile Elements
RECALL to SRAM Initiated by Software or
Power Restore
Unlimited READ, WRITE and RECALL Cycles
100-Year Data Retention
Watchdog Timer
Clock Alarm with programmable Interrupts
Capacitor or battery backup for RTC
Single 3V +20%, -10% Operation
Commercial and Industrial Temperatures
Packages: 48 pin SSOP, 40 pin DIP
DESCRIPTION
The Simtek STK17CA8 combines a 1 Mbit nonvola-
tile static RAM with a full-featured real-time clock in
a reliable, monolithic integrated circuit. The embed-
ded nonvolatile elements incorporate Simtek’s
QuantumTrap technology producing the world’s
most reliable nonvolatile memory. The SRAM can be
read and written an unlimited number of times, while
independent, nonvolatile data resides in the nonvol-
atile elements.
The Real-Time Clock function provides an accurate
clock with leap year tracking and a programmable,
high accuracy oscillator. The Alarm function is pro-
grammable for one-time alarms or periodic seconds,
minutes, hours, or days. There is also a programma-
ble Watchdog Timer for process control.
BLOCK DIAGRAM
Quantum Trap
1024 x 1024
STORE
RECALL
COLUMN I/O
COLUMN DEC
STATIC RAM
ARRAY
1024 x 1024
IN
PUT
BUFFER
S
STORE/
RECALL
CONTROL
POWER
CONTROL
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
SOFTWARE
DETECT
A0 - A16
G
E
W
RTC
MUX
A0 -
A16
R
O
W
DECOD
E
R
A5
A6
A7
A8
A9
A12
A13
A14
A15
A16
A0 A1 A2 A3 A4 A10 A11
VCCX
VCAP
HSB
INT
X2
X1
Vrtcbat
Vrtccap
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PDF描述
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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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