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STK17TA8

Simtek
Part Number STK17TA8
Manufacturer Simtek
Description 128Kx8 Autostore nvSRAM
Published Sep 18, 2007
Detailed Description www.DataSheet4U.com 128Kx8 Autostore nvSRAM With Real-Time Clock FEATURES • nvSRAM Combined With Integrated Real-Time C...
Datasheet PDF File STK17TA8 PDF File

STK17TA8
STK17TA8

Overview
www.
DataSheet4U.
com 128Kx8 Autostore nvSRAM With Real-Time Clock FEATURES • nvSRAM Combined With Integrated Real-Time Clock Functions (RTC, Watchdog Timer, Clock Alarm, Power Monitor) • Capacitor or Battery Backup for RTC • 25, 45 ns Read Access & R/W Cycle Time • Unlimited Read/Write Endurance • Automatic Non-volatile STORE on Power Loss • Non-Volatile STORE Under Hardware or Software Control • Automatic RECALL to SRAM on Power Up • Unlimited RECALL Cycles • 200K STORE Cycles • 20-Year Non-volatile Data Retention • Single 3 V + 20%, -10% Power Supply • Commercial and Industrial Temperatures • Small Footprint SSOP Package (RoHSCompliant) STK17TA8 DESCRIPTION The Simtek STK17TA8 combines a 1Mb non-volatile static RAM (nvSRAM) with a full-featured real-time clock in a reliable, monolithic integrated circuit.
The 1Mbit nvSRAM is a fast static RAM with a nonvolatile Quantum Trap storage element included with each memory cell.
The SRAM provides the fast access & cycle times, ease of use and unlimited read & write endurance of a normal SRAM.
Data transfers automatically to the non-volatile storage cells when power loss is detected (the STORE operation).
On power up, data is automatically restored to the SRAM (the RECALL operation).
Both STORE and RECALL operations are also available under software control.
The real time clock function provides an accurate clock with leap year tracking and a programmable, high accuracy oscillator.
The Alarm function is programmable for one-time alarms or periodic minutes, hours, or days alarms.
There is also a programmable watchdog timer for processor control.
BLOCK DIAGRAM Quantum Trap 1024 X 1024 ROW DECODER STORE STATIC RAM ARRAY 1024 X 1024 RECALL VCC VCAP VRTCbat VRTCcap A5 A6 A7 A8 A9 A12 A13 A14 A15 A16 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 POWER CONTROL STORE/ RECALL CONTROL HSB SOFTWARE DETECT INPUT BUFFERS COLUMN I/O COLUMN DEC RTC A15 – A0 X1 X2 INT A16 – A0 G E W A0 A 1 A 2 A 3 A 4 A10 A11 MUX This product conforms to spe...


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