STK14EC16-BF15 SIMTEK [Simtek Corporation], STK14EC16-BF15 Datasheet

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STK14EC16-BF15

Manufacturer Part Number
STK14EC16-BF15
Description
256Kx16 AutoStore nvSRAM
Manufacturer
SIMTEK [Simtek Corporation]
Datasheet
This is a product in development that has fixed tar-
get specifications that are subject to change pend-
ing characterization results.
SIMTEK Confidential & Proprietary
BLOCK DIAGRAM
FEATURES
• 15, 25, 45 ns Read Access and R/W Cycle Time
• Unlimited Read/Write Endurance
• Automatic Non-volatile STORE on Power Loss
• Non-Volatile STORE Under Hardware or Software
• Automatic RECALL to SRAM on Power Up
• Unlimited RECALL Cycles
• 200K STORE Endurance
• 20-Year Non-volatile Data Retention
• Single 3.0V +20%, -10% Operation
• Commercial, Industrial Temperatures
• 44-pin or 54-pin 400-mil TSOPII Packages (RoHS-
• 48-ball Fine Pitch Ball Grid Array (FBGA)
Preliminary
Control
Compliant)
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
10
12
15
13
14
11
8
9
0
1
2
3
4
5
6
7
A
A
A
A
A
A
A
A
A
A
17
0
1
2
3
4
5
6
7
8
A
9
A
Pachuco Boys
10
A
Column Decoder
2048 x 2048
11
Column I/O
SRAM
Array
A
12
1
A
EEPROM Array
13
2048 x 2048
A
14
RECALL
A
STORE
DESCRIPTION
The Simtek STK14EC16 is a 4MB fast static RAM
with a non-volatile 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 stor-
age 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 Simtek nvSRAM is the highest performance,
most reliable non-volatile memory available.
15
A
16
Document Control #ML0061 Rev 1.1
256Kx16 AutoStore nvSRAM
Jan, 2008
Software
Control
Control
Power
Store/
Recall
Detect
STK14EC16
A0 - A17
V
UB
V
G
W
E
LB
HSB
CAP
CC

Related parts for STK14EC16-BF15

STK14EC16-BF15 Summary of contents

Page 1

... SIMTEK Confidential & Proprietary 256Kx16 AutoStore nvSRAM DESCRIPTION The Simtek STK14EC16 is a 4MB fast static RAM with a non-volatile 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 ...

Page 2

... STK14EC16 Truth Table for SRAM Operations Operating Mode Standby/not selected Internal Read Lower Byte Read Upper Byte Read Word Read Lower Byte Write Upper Byte Write Word Write Document Control #ML0061 Rev 1.1 Jan, 2008 E HSB ...

Page 3

... 54-Pin TSOP-II Description 3 Simtek Confidential STK14EC16 ...

Page 4

... STK14EC16 ABSOLUTE MAXIMUM RATINGS Voltage on Input Relative to Ground . . . . . . . . . . . . . –0.5V to 4.1V Voltage on Input Relative .–0. Voltage HSB . . . . . . . . . . . . . . . .–0. 0-7 Temperature under Bias .–55°C to 125°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .–55°C to 140°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .–65°C to 150°C Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W DC Output Current (1 output at a time, 1s duration) ...

Page 5

... A MAX UNITS CONDITIONS Δ Δ OUTPUT 789 Ohms : Figure 1 AC Output Loading OUTPUT 789 Ohms 5 Simtek Confidential STK14EC16 3.0V 577 Ohms 30 pF INCLUDING SCOPE AND FIXTURE 3.0V 577 Ohms 5 pF INCLUDING SCOPE AND FIXTURE , ...

Page 6

... ELQ ELI IVE ST AND BY 6 Simtek Confidential Preliminary STK14EC16-15 STK14EC16-25 STK14EC16-45 MIN MAX MIN MAX MIN MAX ...

Page 7

... AVAV Address Valid t (22 (17) AVWL EHAX ELEH t (18) BLEH t (16) WLEH t (19) t DVEH EHDX Input Data Valid High Impedance 7 Simtek Confidential STK14EC16 STK14EC16-15 STK14EC16-25 STK14EC16-45 MIN MAX MIN MAX MIN ...

Page 8

... Low Voltage Trigger Level V Rise Time CC rises above V CC SWITCH (29) t (27) ** STORE t (26) HRECALL POWER-UP BROWN OUT Read & Write RECALL AutoStore 8 Simtek Confidential Preliminary STK14EC16 UNITS MIN MAX 20 ms 12.5 ms 2.65 150 t (27) STORE ** t (26) HRECALL POWER DOWN Read & Write AutoStore is below V CC SWITCH ...

Page 9

... DQ (DATA) SOFTWARE STORE/RECALL CYCLE: G CONTROLLED 30 t AVAV ADDRESS #1 ADDRESS AVGL G DQ (DATA) Document Control #ML0061 Rev 1.1 Jan, 2008 STK14EC16-15 STK14EC16-25 PARAMETER MIN STORE/RECALL Initiation Cycle Time 15 Address Set-up Time 0 Clock Pulse Width 12 Address Hold Time 1 RECALL Duration ADDRESS # ELEH ...

Page 10

... DELAY PARAMETER Soft Sequence Processing Time Soft Sequence Command ADDRESS #6 ADDRESS #1 10 Simtek Confidential Preliminary STK14EC16 UNITS MIN MAX μ DELAY to allow read/write cycles to complete SRAM Enabled STK14EC16 UNITS MIN MAX μ ADDRESS #6 NOTES m NOTES n,o ...

Page 11

... Note p: The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle. Note q: While there are 18 addresses on the STK14EC16, only the lower 16 are used to control software modes Note r: I/O state depends on the state of G, UB, and LB. The I/O table shown assumes G, UB, and LB low. ...

Page 12

... STK14EC16 nvSRAM The STK14EC16 nvSRAM is made up of two func- tional components paired in the same physical cell. These are the SRAM memory cell and a nonvolatile QuantumTrap cell. The SRAM memory cell operates like a standard fast static RAM. Data in the SRAM can be transferred to the nonvolatile cell (the STORE operation), or from the nonvolatile cell to SRAM (the RECALL operation) ...

Page 13

... SRAM READ and WRITE operations that are in progress when HSB is driven low by any means are given time to complete before the STORE operation is initiated. After HSB goes low, the STK14EC16 will continue to allow SRAM operations for t ing t , multiple SRAM READ operations may DELAY take place ...

Page 14

... STORE and WRITE operations. The low- voltage condition is detected when V If the STK14EC16 WRITE mode (both E and W low) at power-up, after a RECALL, or after a STORE, the WRITE will be inhibited until a negative transition detected. This protects against inadvertent writes during power up or brown out conditions ...

Page 15

... Simtek recommends users configure the part completely for the specific application. 15 Simtek Confidential STK14EC16 sequence, the following 0x4E38 Valid READ 0xB1C7 Valid READ ...

Page 16

... STK14EC16 ORDERING INFORMATION STK14EC16 Document Control #ML0061 Rev 1.1 Jan, 2008 Packing Option Blank = Tube TR = Tape and Reel Temperature Range Blank = Commercial ( Industrial (-40 to +85 C) Access Time Lead Finish F = Nickel/Palladium/Gold (Ni/Pd/Au) Package T = Plastic 44-pin 400 mil TSOPII (32 mil pitch) ...

Page 17

... STK14EC16-UF25ITR 3V 4M-16b AutoStore nvSRAM TSOP54-400 STK14EC16-UF45I 3V 4M-16b AutoStore nvSRAM TSOP54-400 STK14EC16-UF45ITR 3V 4M-16b AutoStore nvSRAM TSOP54-400 STK14EC16-BF15I 3V 4M-16b AutoStore nvSRAM FBGA48 STK14EC16-BF15ITR 3V 4M-16b AutoStore nvSRAM FBGA48 STK14EC16-BF25I 3V 4M-16b AutoStore nvSRAM FBGA48 STK14EC16-BF25ITR 3V 4M-16b AutoStore nvSRAM FBGA48 STK14EC16-BF45I 3V 4M-16b AutoStore nvSRAM FBGA48 STK14EC16-BF45ITR 3V 4M-16b AutoStore nvSRAM FBGA48 Document Control #ML0061 Rev 1 ...

Page 18

... STK14EC16 54-Pin TSOPII 0.404 10.262 0.396 10.058 0.0315 (0.800) ) 0.047 1.194 0.039 ( 0.991 DIM = INCHES DIM = mm Document Control #ML0061 Rev 1.1 Jan, 2008 PACKAGE DIAGRAMS Pin 1 Top View Index ( ) 0.886 22.517 0.878 22.313 ° 0 ° 0.0235 0.597 0.0160 0.406 0.016 BSC ...

Page 19

... Document Control #ML0061 Rev 1.1 Jan, 2008 Pin 1 Top View Index BSC ) 0.729 18.517 0.721 18.313 ( MIN DIM = INCHES MAX ) ( MIN DIM = mm MAX 19 Simtek Confidential STK14EC16 0.404 10.262 0.396 10.058 ) ( 0.470 11.938 0.455 11.735 0.404 10.262 0.396 10.058 ( 0.0235 0.597 0.0160 ...

Page 20

... STK14EC16 48-Ball FBGA TOP VIEW A1 CORNER 6.00 ± 0.10 SEATING PLANE C Document Control #ML0061 Rev 1.1 Jan, 2008 0.15(4x) 20 Simtek Confidential Preliminary BOTTOM VIEW Ø0. Ø0. CORNER 00.30 ± 0.05(48X ...

Page 21

... Also, added “B = Plastic 48-pin FBGA (Fine Pitch Ball Grid Array)” to Finish. – page 17: in Ordering Codes, added ordering information for 48 FBGA and added access times column. 21 Simtek Confidential STK14EC16 to 180 and CAP and t and ELQX EHQZ ...

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