STK15C68-PF25 SIMTEK [Simtek Corporation], STK15C68-PF25 Datasheet
STK15C68-PF25
Related parts for STK15C68-PF25
STK15C68-PF25 Summary of contents
Page 1
... Elements to the take place automatically on restoration of power. Initia- tion of STORE trolled by entering control sequences on the inputs. The STK15C68 is pin-compatible with and battery-backed SRAM substitution while enhancing performance. A similar device (STK16C68) with an internally integrated capacitor is available for systems with very fast slew rates ...
Page 2
... STK15C68 ABSOLUTE MAXIMUM RATINGS Voltage on Input Relative to Ground . . . . . . . . . . . . . .–0.5V to 7.0V Voltage on Input Relative –0. Voltage –0. 0-7 Temperature under Bias . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W DC Output Current (1 output at a time, 1s duration 15mA ...
Page 3
... AXQX AVAV 1 t ELQV 6 t ELQX 4 t GLQV 8 t GLQX 10 t ELICCH ACTIVE 3 Document Control # ML0009 rev 0.2 STK15C68 ± 5.0V CC STK15C68-25 STK15C68-35 STK15C68-45 MIN MAX MIN MAX MIN MAX ...
Page 4
... WLQZ HIGH IMPEDANCE AVAV 14 t ELEH AVEH 13 t WLEH 15 t DVEH DATA VALID HIGH IMPEDANCE 4 Document Control # ML0009 rev 0.2 ± 5.0V 10%) CC STK15C68-35 STK15C68-45 UNITS MAX MIN MAX MIN MAX ...
Page 5
... SWITCH 24 t DELAY BROWN OUT AutoStore™ NO RECALL NO RECALL (V DID NOT GO DID NOT GO CC BELOW V ) RESET RESET 5 Document Control # ML0009 rev 0.2 STK15C68 (V = 5.0V CC STK15C68 UNITS MIN MAX 550 4.0 4.5 3 STORE BROWN OUT AutoStore™ RECALL WHEN V RETURNS CC ) ABOVE V SWITCH ± ...
Page 6
... Output High Z Output High Z Output Data Output High Z Output Data Output High Z Output Data Output High Z Output Data Output High Z Output Data Output High Z Output High Z Output High Z = 5.0V ± 10 STK15C68-35 STK15C68-45 MAX MIN MAX MIN MAX ...
Page 7
... The STK15C68 is a versatile memory chip that pro- vides several modes of operation. The STK15C68 can operate as a standard Nonvolatile Elements shadow to which the information can be copied, or from which the SRAM can be updated in nonvolatile mode. SRAM NOISE CONSIDERATIONS Note that the STK15C68 is a high-speed memory and so must have a high-frequency bypass capaci- tor of approximately 0.1μ ...
Page 8
... Software- cycles. If the chip enable duty cycle is less WRITE than 100%, only standby current is drawn when the chip is disabled. The overall average current drawn by the STK15C68 depends on the following items: 1) CMOS chip enable; 3) the overall cycle rate for accesses; request will be 4) the ratio of temperature ...
Page 9
... STK15C68 March 2006 ORDERING INFORMATION - Temperature Range Access Time Lead Finish Package 9 Document Control # ML0009 rev 0.2 STK15C68 Blank = Commercial (0 to 70° Industrial (–40 to 85° 25ns 35 = 35ns 45 = 45ns Blank = 85%Sn/15% 100% Sn (Matte Tin Plastic 28-pin 600 mil DIP P = Plastic 28-pin 300 mil DIP ...
Page 10
... STK15C68 Document Revision History Date Revision December 2002 0.0 September 2003 0.1 March 2006 0.2 March 2006 Summary Added lead-free lead finish Marked as Obsolete, Not recommended for new design. 10 Document Control # ML0009 rev 0.2 ...