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參數(shù)資料
| 型號(hào)： | STK17TC8-RF25I |
| 元件分類： | 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO48 |
| 封裝： | 0.300 INCH, 0.25 INCH PITCH, ROHS COMPLIANT, PLASTIC, SSOP-48 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大小： | 319K |
| 代理商： | STK17TC8-RF25I |
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December 2005
Document Control #ML0036 rev 0.0
1
STK17TC8
nvTime
TM Event Data Recorder
512K x 8 AutoStore
TM nvSRAM
With Real-Time Clock
Advanced Information
FEATURES
Data Integrity of Simtek nvSRAM Combined
with Full-Featured Real-Time Clock
Watchdog Timer
Clock Alarm with programmable Interrupts
Capacitor or battery backup for RTC
25ns Access Time
“Hands-off” Automatic STORE on Power Down
with only a small capacitor
STORE to QuantumTrap Initiated by
Software , device pin, or on Power Down
RECALL to SRAM Initiated by Software or
Power Up
Unlimited READ, WRITE and RECALL Cycles
500,000 STORE Cycles to QuantumTrap
100-Year Data Retenstion to QuantumTrap
10mA Typical I
CC at 200ns Cycle Time
Single 3V +20%, -10% Operation
SSOP Package, ROHS compliant
DESCRIPTION
The Simtek STK17TC8 combines a 4 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
nonvolatile 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
COLUMN DEC
G
E
W
COLUMN I/O
POWER
CONTROL
STORE/
RECALL
CONTROL
SOFTWARE
DETECT
A18 – A0
Quantum Trap
2048 X 2048
STATIC RAM
ARRAY
2048 X 2048
STORE
RECALL
VCC
VCAP
A18 – A0
OUTPUT BUFFERS
INPUT BUFFERS
DQ7 – DQ0
RTC
MUX
X1
X2
INT
Figure 1. Block Diagram
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