ADVANCE CY14E102L, CY14E102N 2-Mbit (256K x 8/128K x 16) nvSRAM Features Functional Description ■ 15 ns, 20 ns, 25 ns, and 45 ns access times ■ Internally organized as 256K x 8 (CY14E102L) or 128K x 16 (CY14E102N) ■ Hands off automatic STORE on power down with only a small capacitor ■ STORE to QuantumTrap™ nonvolatile elements initiated by software, device pin, or AutoStore™ on power down ■ RECALL to SRAM initiated by software or power up ■ Infinite read, write, and recall cycles ■ 200,000 STORE cycles to QuantumTrap The Cypress CY14E102L/CY14E102N is a fast static RAM, with a nonvolatile element in each memory cell. The memory is organized as 256K words of 8 bits each or 128K words of 16 bits each. The embedded nonvolatile elements incorporate QuantumTrap technology, producing the world’s most reliable nonvolatile memory. The SRAM provides infinite read and write cycles, while independent nonvolatile data reside in the highly reliable QuantumTrap cell. Data transfers from the SRAM to the nonvolatile elements (the STORE operation) takes place automatically at power down. On power up, data is restored to the SRAM (the RECALL operation) from the nonvolatile memory. Both the STORE and RECALL operations are also available under software control. ■ 20 year data retention ■ Single 5V +10% operation ■ Commercial and Industrial temperatures ■ 48-pin FBGA, 44 and 54-pin TSOP II packages ■ Pb-free and RoHS compliance Logic Block Diagram VCC VCAP [1] Address A0 - A17 [1] DQ0 - DQ7 CE OE CY14E102L CY14E102N WE HSB BHE BLE VSS Note 1. Address A0 - A17 and Data DQ0 - DQ7 for x8 configuration, Address A0 - A16 and Data DQ0 - DQ15 for x16 configuration. Cypress Semiconductor Corporation Document Number: 001-45755 Rev. *A • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 Revised June 27, 2008 [+] Feedback CY14E102L, CY14E102N ADVANCE Pinouts Figure 1. Pin Diagram - 48 FBGA (Top View) (x16) (Not to Scale) (x8) (Not to Scale) 1 2 3 4 5 6 A BLE OE A0 A1 A2 NC A NC B DQ8 BHE A3 A4 CE DQ0 B NC DQ4 C DQ9 DQ10 A5 A6 DQ1 DQ2 C A7 DQ5 VCC D VSS A7 DQ3 VCC D A16 DQ6 VSS E VCC DQ12 VCAP A16 DQ4 VSS E 2 3 4 5 6 NC OE A0 A1 A2 NC NC NC A3 A4 CE DQ0 NC A5 A6 VSS DQ1 A17 1 VCC DQ2 VCAP [2] DQ11 NC DQ3 NC A14 A15 NC DQ7 F DQ14 DQ13 A14 A15 DQ5 DQ6 F [4] NC HSB A12 A13 WE NC G DQ15 HSB A12 A13 WE DQ7 G [2] NC A8 A9 A10 A11 [3] NC H [3] NC A9 A10 A11 [4] NC H A8 Figure 2. Pin Diagram - 44 TSOP II (Top View) NC [4] NC A0 A1 A2 A3 A4 CE DQ0 DQ1 VCC VSS DQ2 DQ3 WE A5 A6 A7 A8 A9 NC NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 (x8) (Not to Scale) 44 43 42 41 40 39 38 37 36 35 34 33 32 31 HSB NC [3] NC [2] NC A17 A16 A15 OE DQ7 DQ6 VSS VCC DQ5 DQ4 30 29 28 27 26 25 24 23 VCAP A14 A13 A12 A11 A10 NC NC A0 A1 A2 A3 A4 CE DQ0 DQ1 DQ2 DQ3 VCC VSS DQ4 DQ5 DQ6 DQ7 WE A5 A6 A7 A8 A9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 (x16) (Not to Scale) 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 [2] NC A16 A15 OE BHE BLE DQ15 DQ14 DQ13 DQ12 VSS VCC DQ11 DQ10 DQ9 DQ8 VCAP A14 A13 A12 A11 A10 Notes 2. Address expansion for 4 Mbit. NC pin not connected to die. 3. Address expansion for 8 Mbit. NC pin not connected to die. 4. Address expansion for 16 Mbit. NC pin not connected to die. Document Number: 001-45755 Rev. *A Page 2 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Pinouts (continued) Figure 3. Pin Diagram - 54 TSOP II (Top View) NC [4] NC A0 A1 A2 A3 A4 CE DQ0 DQ1 DQ2 DQ3 VCC VSS DQ4 DQ5 DQ6 DQ7 WE A5 A6 A7 A8 A9 NC NC NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 54 53 52 51 50 49 (x16) (Not to Scale) 19 20 21 22 23 24 25 26 27 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 HSB [3] NC [2] NC A16 A15 OE BHE BLE DQ15 DQ14 DQ13 DQ12 VSS VCC DQ11 DQ10 DQ9 DQ8 VCAP A14 A13 A12 A11 A10 NC NC NC Pin Definitions Pin Name IO Type A0 – A17 Input A0 – A16 Description Address Inputs. Used to select one of the 262, 144 bytes of the nvSRAM for x8 Configuration. Address Inputs. Used to select one of the 131, 072 bytes of the nvSRAM for x16 Configuration. DQ0 – DQ7 Input/Output Bidirectional Data IO Lines for x8 Configuration. Used as input or output lines depending on operation. DQ0 – DQ15 Bidirectional Data IO Lines for x16 Configuration. Used as input or output lines depending on operation. WE Input Write Enable Input, Active LOW. When selected LOW, data on the IO pins is written to the address location latched by the falling edge of CE. CE Input Chip Enable Input, Active LOW. When LOW, selects the chip. When HIGH, deselects the chip. OE Input Output Enable, Active LOW. The active LOW OE input enables the data output buffers during read cycles. IO pins are tri-stated on deasserting OE high. BHE Input Byte High Enable, Active LOW. Controls DQ15 - DQ8. BLE Input Byte Low Enable, Active LOW. Controls DQ7 - DQ0. VSS Ground VCC Ground for the Device. Must be connected to the ground of the system. Power Supply Power Supply Inputs to the Device. HSB Input/Output Hardware Store Busy (HSB). When LOW this output indicates that a hardware store is in progress. When pulled LOW external to the chip it initiates a nonvolatile STORE operation. A weak internal pull up resistor keeps this pin HIGH if not connected (connection is optional). VCAP Power Supply AutoStore Capacitor. Supplies power to the nvSRAM during power loss to store data from the SRAM to nonvolatile elements. NC No Connect No Connect. Do not connect this pin to the die. Document Number: 001-45755 Rev. *A Page 3 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE The CY14E102L/CY14E102N nvSRAM is made up of two functional components paired in the same physical cell. They are an SRAM memory cell and a nonvolatile QuantumTrap cell. The SRAM memory cell operates as a standard fast static RAM. Data in the SRAM is transferred to the nonvolatile cell (the STORE operation), or from the nonvolatile cell to the SRAM (the RECALL operation). Using this unique architecture all cells are stored and recalled in parallel. During the STORE and RECALL operations SRAM read and write operations are inhibited. The CY14E102L/CY14E102N supports infinite reads and writes similar to a typical SRAM. In addition, it provides infinite RECALL operations from the nonvolatile cells and up to 200K STORE operations. SRAM Read The CY14E102L/CY14E102N performs a READ cycle when CE and OE are LOW, and WE and HSB are HIGH. The address specified on pins A0-17 or A0-16 determines which of the 262, 144 data bytes or 131, 072 words of 16 bits each is accessed. When the read is initiated by an address transition, the outputs are valid after a delay of tAA. If the read is initiated by CE or OE, the outputs are valid at tACE or at tDOE, whichever is later. The data outputs repeatedly respond to address changes within the tAA access time without the need for transitions on any control input pins. This remains valid until another address change or until CE or OE is brought HIGH, or WE or HSB is brought LOW. To reduce unnecessary nonvolatile stores, AutoStore and Hardware Store operations are ignored unless at least one WRITE operation has taken place since the most recent STORE or RECALL cycle. Software initiated STORE cycles are performed regardless of whether a WRITE operation has taken place. Monitor the HSB signal by the system to detect if an AutoStore cycle is in progress. Figure 4. AutoStore Mode Vcc 0.1uF 10kOhm Device Operation Vcc WE V CAP V SS V CAP SRAM Write Hardware STORE Operation A WRITE cycle is performed whenever CE and WE are LOW and HSB is HIGH. The address inputs must be stable before entering the WRITE cycle and must remain stable until either CE or WE goes high at the end of the cycle. The data on the common IO pins DQ0–15 are written into the memory if the data is valid tSD before the end of a WE controlled WRITE or before the end of an CE controlled WRITE. It is recommended that OE be kept HIGH during the entire WRITE cycle to avoid data bus contention on common IO lines. If OE is left LOW, internal circuitry turns off the output buffers tHZWE after WE goes LOW. The CY14E102L/CY14E102N provides the HSB pin for controlling and acknowledging the STORE operations. Use the HSB pin to request a hardware STORE cycle. When the HSB pin is driven LOW, the CY14E102L/CY14E102N conditionally initiates a STORE operation after tDELAY. An actual STORE cycle only begins if a WRITE to the SRAM took place since the last STORE or RECALL cycle. The HSB pin also acts as an open drain driver that is internally driven LOW to indicate a busy condition while the STORE (initiated by any means) is in progress. AutoStore Operation 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 CY14E102LL/CY14E102N continues SRAM operations for tDELAY. During tDELAY, multiple SRAM READ operations may take place. If a WRITE is in progress when HSB is pulled low it is allowed a time, tDELAY to complete. However, any SRAM WRITE cycles requested after HSB goes LOW is inhibited until HSB returns HIGH. The CY14E102L/CY14E102N stores data to the nvSRAM using one of the following three storage operations: Hardware Store activated by HSB, Software Store activated by an address sequence, and AutoStore on device power down. The AutoStore operation is a unique feature of QuantumTrap technology and is enabled by default on the CY14E102L/CY14E102N. During a normal operation, the device draws current from VCC to charge a capacitor connected to the VCAP pin. This stored charge is used by the chip to perform a single STORE operation. If the voltage on the VCC pin drops below VSWITCH, the part automatically disconnects the VCAP pin from VCC. A STORE operation is initiated with power provided by the VCAP capacitor. Figure 4 shows the proper connection of the storage capacitor (VCAP) for automatic store operation. Refer to the section DC Electrical Characteristics on page 7 for the size of VCAP . Document Number: 001-45755 Rev. *A During any STORE operation, regardless of how it was initiated, the CY14E102L/CY14E102N continues to drive the HSB pin LOW, releasing it only when the STORE is complete. Upon completion of the STORE operation, the CY14E102L/CY14E102N remains disabled until the HSB pin returns HIGH. Leave the HSB unconnected if it is not used. Page 4 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Hardware RECALL (Power Up) The software sequence may be clocked with CE controlled READs or OE controlled READs. After the sixth address in the sequence is entered, the STORE cycle commences and the chip is disabled. It is important to use READ cycles and not WRITE cycles in the sequence, although it is not necessary that OE be LOW for a valid sequence. After the tSTORE cycle time is fulfilled, the SRAM is activated again for the READ and WRITE operation. During power up or after any low power condition (VCC< VSWITCH), an internal RECALL request is latched. When VCC again exceeds the sense voltage of VSWITCH, a RECALL cycle is automatically initiated and takes tHRECALL to complete. Software STORE Software RECALL Transfer data from the SRAM to the nonvolatile memory with a software address sequence. The CY14E102L/CY14E102N software STORE cycle is initiated by executing sequential CE-controlled READ cycles from six specific address locations in exact order. During the STORE cycle an erase of the previous nonvolatile data is first performed, followed by a program of the nonvolatile elements. After a STORE cycle is initiated, further input and output are disabled until the cycle is completed. Transfer the data from the nonvolatile memory to the SRAM with a software address sequence. A software RECALL cycle is initiated with a sequence of READ operations in a manner similar to the software STORE initiation. To initiate the RECALL cycle, the following sequence of CE controlled READ operations must be performed: 1. Read Address 0x4E38 Valid READ 2. Read Address 0xB1C7 Valid READ 3. Read Address 0x83E0 Valid READ 4. Read Address 0x7C1F Valid READ 5. Read Address 0x703F Valid READ 6. Read Address 0x4C63 Initiate RECALL Cycle Because a sequence of READs from specific addresses is used for STORE initiation, it is important that no other READ or WRITE accesses intervene in the sequence. If there are intervening READ or WRITE accesses, the sequence is aborted and no STORE or RECALL takes place. To initiate the software STORE cycle, the following READ sequence must be performed. 1. Read Address 0x4E38 Valid READ 2. Read Address 0xB1C7 Valid READ 3. Read Address 0x83E0 Valid READ 4. Read Address 0x7C1F Valid READ 5. Read Address 0x703F Valid READ 6. Read Address 0x8FC0 Initiate STORE Cycle Internally, RECALL is a two step procedure. First, the SRAM data is cleared and then, the nonvolatile information is transferred into the SRAM cells. After the tRECALL cycle time, the SRAM is again ready for READ and WRITE operations. The RECALL operation does not alter the data in the nonvolatile elements. Table 1. Mode Selection CE H WE X OE X A15 - A0 Mode IO Power X Not Selected Output High Z Standby L H L X Read SRAM Output Data Active L L X X Write SRAM Input Data Active L H L 0x4E38 0xB1C7 0x83E0 0x7C1F 0x703F 0x8B45 Read SRAM Read SRAM Read SRAM Read SRAM Read SRAM AutoStore Disable Output Data Output Data Output Data Output Data Output Data Output Data Active[5,6,7] L H L 0x4E38 0xB1C7 0x83E0 0x7C1F 0x703F 0x4B46 Read SRAM Read SRAM Read SRAM Read SRAM Read SRAM AutoStore Enable Output Data Output Data Output Data Output Data Output Data Output Data Active[5,6,7] Notes 5. The six consecutive address locations must be in the order listed. WE must be HIGH during all six cycles to enable a nonvolatile cycle. 6. While there are 18/17 address lines on the CY14E102L/CY14E102N, only the lower 16 lines are used to control software modes. 7. IO state depends on the state of OE, BHE, and BLE. The IO table shown assumes OE, BHE, and BLE LOW. Document Number: 001-45755 Rev. *A Page 5 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Table 1. Mode Selection (continued) CE L WE H OE L A15 - A0 Mode IO Power 0x4E38 0xB1C7 0x83E0 0x7C1F 0x703F 0x8FC0 Read SRAM Read SRAM Read SRAM Read SRAM Read SRAM Nonvolatile Store Output Data Output Data Output Data Output Data Output Data Output High Z Active ICC2[5,6,7] L H L 0x4E38 0xB1C7 0x83E0 0x7C1F 0x703F 0x4C63 Read SRAM Read SRAM Read SRAM Read SRAM Read SRAM Nonvolatile Recall Output Data Output Data Output Data Output Data Output Data Output High Z Active[5,6,7] Preventing AutoStore The AutoStore function is disabled by initiating an AutoStore disable sequence. A sequence of read operations is performed in a manner similar to the software STORE initiation. To initiate the AutoStore disable sequence, the following sequence of CE controlled read operations must be performed: 1. Read address 0x4E38 Valid READ 2. Read address 0xB1C7 Valid READ 3. Read address 0x83E0 Valid READ 4. Read address 0x7C1F Valid READ 5. Read address 0x703F Valid READ 6. Read address 0x8B45 AutoStore Disable The AutoStore is re-enabled by initiating an AutoStore enable sequence. A sequence of read operations is performed in a manner similar to the software RECALL initiation. To initiate the AutoStore enable sequence, the following sequence of CE controlled read operations must be performed: 1. Read address 0x4E38 Valid READ 2. Read address 0xB1C7 Valid READ 3. Read address 0x83E0 Valid READ 4. Read address 0x7C1F Valid READ 5. Read address 0x703F Valid READ 6. Read address 0x4B46 AutoStore Enable Document Number: 001-45755 Rev. *A If the AutoStore function is disabled or re-enabled a manual STORE operation (hardware or software) must be issued to save the AutoStore state through subsequent power down cycles. The part comes from the factory with AutoStore enabled. Data Protection The CY14E102L/CY14E102N protects data from corruption during low voltage conditions by inhibiting all externally initiated STORE and write operations. The low voltage condition is detected when VCC < VSWITCH. If the CY14E102L/CY14E102N is in a write mode (both CE and WE LOW) at power up, after a RECALL or STORE, the write is inhibited until a negative transition on CE or WE is detected. This protects against inadvertent writes during power up or brown out conditions. Noise Considerations Refer CY Application Note AN1064. Page 6 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Maximum Ratings Package Power Dissipation Capability (TA = 25°C) ................................................... 1.0W Exceeding maximum ratings may impair the useful life of the device. These user guidelines are not tested. Surface Mount Pb Soldering Temperature (3 Seconds) .......................................... +260°C Storage Temperature ................................. –65°C to +150°C Output Short Circuit Current [8] .................................... 15 mA Ambient Temperature with Power Applied ............................................ –55°C to +150°C Static Discharge Voltage.......................................... > 2001V (per MIL-STD-883, Method 3015) Supply Voltage on VCC Relative to GND ..........–0.5V to 7.0V Latch-Up Current ................................................... > 200 mA Voltage Applied to Outputs in High-Z State....................................... –0.5V to VCC + 0.5V Operating Range Input Voltage.............................................–0.5V to Vcc+0.5V Transient Voltage (<20 ns) on Any Pin to Ground Potential .................. –2.0V to VCC + 2.0V Range Commercial Industrial Ambient Temperature VCC 0°C to +70°C 4.5V to 5.5V –40°C to +85°C 4.5V to 5.5V DC Electrical Characteristics Over the Operating Range (VCC = 4.5V to 5.5V)[10] Parameter ICC1 Description Average VCC Current Test Conditions tRC = 15 ns tRC = 20 ns tRC = 25 ns tRC = 45 ns Dependent on output loading and cycle rate.Values obtained without output loads. IOUT = 0 mA Min Max Unit Commercial 70 65 65 50 mA mA mA Industrial 75 70 70 52 mA mA mA ICC2 Average VCC Current during STORE All Inputs Don’t Care, VCC = Max Average current for duration tSTORE 6 mA ICC3[9] Average VCC Current at WE > (VCC – 0.2). All other I/P cycling. tRC= 200 ns, 5V, 25°C Dependent on output loading and cycle rate. Values obtained without output loads. typical 35 mA ICC4 Average VCAP Current All Inputs Don’t Care, VCC = Max during AutoStore Cycle Average current for duration tSTORE 6 mA ISB VCC Standby Current 3 mA IIX Input Leakage Current VCC = Max, VSS < VIN < VCC (except HSB) –1 +1 μA Input Leakage Current VCC = Max, VSS < VIN < VCC (For HSB) –100 +1 μA –1 +1 μA CE > (VCC – 0.2). All others VIN < 0.2V or > (VCC – 0.2V). Standby current level after nonvolatile cycle is complete. Inputs are static. f = 0 MHz. IOZ Off-State Output Leakage Current VCC = Max, VSS < VIN < VCC, CE or OE > VIH VIH Input HIGH Voltage 2.0 VCC + 0.5 V VIL Input LOW Voltage Vss – 0.5 0.8 V VOH Output HIGH Voltage IOUT = –2 mA VOL Output LOW Voltage IOUT = 4 mA VCAP Storage Capacitor Between VCAP pin and VSS, 5V Rated 2.4 61 V 0.4 V 82 μF Notes 8. Outputs shorted for no more than one second. No more than one output shorted at a time. 9. Typical conditions for the active current shown on the front page of the data sheet are average values at 25°C (room temperature), and VCC = 5V. Not 100% tested. 10. The HSB pin has IOUT=-10 uA for VOH of 2.4V.This parameter is characterized but not tested. Document Number: 001-45755 Rev. *A Page 7 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Capacitance The following table lists the capacitance parameters.[11] Parameter Description CIN Input Capacitance COUT Output Capacitance Test Conditions TA = 25°C, f = 1 MHz, VCC = 0 to 3.0V Max Unit 7 pF 7 pF Thermal Resistance The following table lists the thermal resistance parameters. [11] Parameter ΘJA ΘJC Description Test Conditions Thermal Resistance (Junction to Ambient) Test conditions follow standard test methods and procedures for measuring thermal impedance, in accordance with EIA/JESD51. Thermal Resistance (Junction to Case) 48-FBGA 44-TSOP II 54-TSOP II Unit 28.82 31.11 30.73 °C/W 7.84 5.56 6.08 °C/W AC Test Loads 963Ω 963Ω 5.0V 5.0V R1 for tri-state specs R1 OUTPUT OUTPUT 30 pF R2 512Ω 5 pF R2 512Ω AC Test Conditions Input Pulse Levels ....................................................0V to 3V Input Rise and Fall Times (10% - 90%) ........................ <5 ns Input and Output Timing Reference Levels .................... 1.5V Note 11. These parameters are guaranteed but not tested. Document Number: 001-45755 Rev. *A Page 8 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE AC Switching Characteristics The following table lists the AC switching characteristics. Parameters Cypress Alt Parameters Parameters 15 ns Description Min 20 ns Max Min 25 ns Max Min Max 45 ns Min Max Unit SRAM Read Cycle tACE tACS Chip Enable Access Time tRC[12] 15 tRC Read Cycle Time tAA[13] tAA Address Access Time 15 20 25 45 ns tDOE tOE Output Enable to Data Valid 10 10 12 20 ns tOHA tOH Output Hold After Address Change 3 3 3 3 ns tLZCE[14] tLZ Chip Enable to Output Active 3 3 3 3 ns tHZCE[14] 15 20 20 25 45 ns Chip Disable to Output Inactive tOLZ Output Enable to Output Active tHZOE[14] tOHZ Output Disable to Output Inactive tPU[11] tPA Chip Enable to Power Active tPD[11] tPS Chip Disable to Power Standby 15 20 25 45 ns tDBE - Byte Enable to Data Valid 10 10 12 20 ns tLZBE - Byte Enable to Output Active tHZBE - Byte Disable to Output Inactive 0 7 0 0 8 0 0 10 ns tHZ 0 8 45 [14] tLZOE 7 25 7 0 10 0 0 15 8 ns 15 0 0 ns ns 0 10 ns ns 15 ns SRAM Write Cycle tWC tWC Write Cycle Time 15 20 25 45 ns tPWE tWP Write Pulse Width 10 15 20 30 ns tSCE tCW Chip Enable To End of Write 15 15 20 30 ns tSD tDW Data Setup to End of Write 5 8 10 15 ns tHD tDH Data Hold After End of Write 0 0 0 0 ns tAW tAW Address Setup to End of Write 10 15 20 30 ns tSA tAS Address Setup to Start of Write 0 0 0 0 ns tHA tWR Address Hold After End of Write 0 0 0 0 ns tWZ Write Enable to Output Disable tOW Output Active after End of Write 3 3 3 3 ns - Byte Enable to End of Write 15 15 20 30 ns tHZWE[14,15] tLZWE tBW [14] 7 8 10 15 ns Notes 12. WE must be HIGH during SRAM read cycles. 13. Device is continuously selected with CE and OE both LOW. 14. Measured ±200 mV from steady state output voltage. 15. If WE is LOW when CE goes LOW, the output goes into high impedance state. Document Number: 001-45755 Rev. *A Page 9 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE AutoStore and Power Up RECALL Parameters CY14E102L/CY14E102N Description Min Unit Max tHRECALL [16] Power Up RECALL Duration 20 ms STORE Cycle Duration 15 ms VSWITCH Low Voltage Trigger Level 4.4 V tVCCRISE VCC Rise Time tSTORE [17] μs 150 Software Controlled STORE and RECALL Cycle The following table lists the software controlled STORE and RECALL cycle parameters.[18, 19] Parameters Description 15ns Min 20 ns Max Min 25ns Max Min 45ns Max Min Max Unit tRC STORE and RECALL Initiation Cycle Time 15 20 25 45 ns tAS Address Setup Time 0 0 0 0 ns tCW Clock Pulse Width 12 15 20 30 ns tGHAX Address Hold Time 1 1 1 1 ns tRECALL RECALL Duration 200 200 200 200 μs tSS [20, 21] Soft Sequence Processing Time 70 70 70 70 μs Hardware STORE Cycle Parameters Description CY14E102L/CY14E102N Min Max 70 tDELAY [22] Time allowed to complete SRAM cycle 1 tHLHX Hardware STORE pulse width 15 Unit μs ns Notes 16. tHRECALL starts from the time VCC rises above VSWITCH. 17. If an SRAM Write has not taken place since the last nonvolatile cycle, no STORE takes place. 18. The software sequence is clocked with CE controlled or OE controlled reads. 19. The six consecutive addresses must be read in the order listed in the mode selection table. WE must be HIGH during all six consecutive cycles. 20. This is the amount of time it takes to take action on a soft sequence command.Vcc power must remain HIGH to effectively register command. 21. Commands such as STORE and RECALL lock out IO until operation is complete which further increases this time. See the specific command. 22. On a hardware STORE initiation, SRAM operation continues to be enabled for time tDELAY to allow read and write cycles to complete. Document Number: 001-45755 Rev. *A Page 10 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Switching Waveforms Figure 5. SRAM Read Cycle #1: Address Controlled[12, 13, 23] tRC ADDRESS t AA t OHA DQ (DATA OUT) DATA VALID Figure 6. SRAM Read Cycle #2: CE and OE Controlled[12, 23, 25] tRC ADDRESS tLZCE CE tACE tPD tHZCE OE tLZOE t HZOE tDOE BHE , BLE tLZBE DQ (DATA OUT) t PU ICC tHZCE tHZBE tDBE DATA VALID ACTIVE STANDBY Notes 23. HSB must remain HIGH during READ and WRITE cycles. 24. CE or WE must be >VIH during address transitions. 25. BHE and BLE are applicable for x16 configuration only. Document Number: 001-45755 Rev. *A Page 11 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Switching Waveforms (continued) Figure 7. SRAM Write Cycle #1: WE Controlled[13, 21, 22, 23] t WC ADDRESS t HA t SCE CE t AW t SA t PWE WE t BW BHE , BLE t SD t HD DATA VALID DATA IN tHZWE DATA OUT t LZWE HIGH IMPEDANCE PREVIOUS DATA Figure 8. SRAM Write Cycle #2: CE Controlled[13, 21, 22, 23] tWC ADDRESS tSA tSCE CE tHA tAW WE BHE , BLE tPWE tBW tSD DATA IN DATA OUT Document Number: 001-45755 Rev. *A tHD DATA VALID HIGH IMPEDANCE Page 12 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Switching Waveforms (continued) Figure 9. AutoStore or Power Up RECALL[26] No STORE occurs without atleast one SRAM write STORE occurs only if a SRAM write has happened VCC VSWITCH tVCCRISE AutoStore tSTORE tSTORE POWER-UP RECALL tHRECALL tHRECALL Read & Write Inhibited Figure 10. CE Controlled Software STORE/RECALL Cycle[19] Note 26. Read and Write cycles are ignored during STORE, RECALL, and while VCC is below VSWITCH. Document Number: 001-45755 Rev. *A Page 13 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Switching Waveforms (continued) Figure 11. OE Controlled Software STORE/RECALL Cycle[19] tRC ADDRESS # 1 ADDRESS CE tAS ADDRESS # 6 tCW OE tGHAX DATA VALID a a DQ (DATA) t STORE / t RECALL DATA VALID a a a a a a a a a a a a tRC HIGH IMPEDANCE Figure 12. Hardware STORE Cycle[22] Figure 13. Soft Sequence Processing[20, 21] tSS Document Number: 001-45755 Rev. *A tSS Page 14 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Ordering Information Speed (ns) 15 20 Ordering Code Package Diagram Package Type Operating Range CY14B102L-ZS15XCT 51-85087 44-pin TSOP II Commercial CY14E102L-ZS15XIT 51-85087 44-pin TSOP II Industrial CY14E102L-ZS15XI 51-85087 44-pin TSOP II CY14E102L-BA15XCT 51-85128 48-ball FBGA Commercial Industrial CY14E102L-BA15XIT 51-85128 48-ball FBGA CY14E102L-BA15XI 51-85128 48-ball FBGA CY14E102L-ZSP15XCT 51-85160 54-pin TSOP II Commercial CY14E102L-ZSP15XIT 51-85160 54-pin TSOP II Industrial CY14E102L-ZSP15XI 51-85160 54-pin TSOP II CY14E102N-BA115XCT 51-85128 48-ball FBGA Commercial CY14E102N-BA15XIT 51-85128 48-ball FBGA Industrial CY14E102N-BA15XI 51-85128 48-ball FBGA CY14E102N-ZSP15XCT 51-85160 54-pin TSOP II Commercial CY14E102N-ZSP15XIT 51-85160 54-pin TSOP II Industrial CY14E102N-ZSP15XI 51-85160 54-pin TSOP II CY14B102L-ZS20XCT 51-85087 44-pin TSOP II Commercial Industrial CY14E102L-ZS20XIT 51-85087 44-pin TSOP II CY14E102L-ZS20XI 51-85087 44-pin TSOP II CY14E102L-BA20XCT 51-85128 48-ball FBGA Commercial CY14E102L-BA20XIT 51-85128 48-ball FBGA Industrial CY14E102L-BA20XI 51-85128 48-ball FBGA CY14E102L-ZSP20XCT 51-85160 54-pin TSOP II Commercial Industrial CY14E102L-ZSP20XIT 51-85160 54-pin TSOP II CY14E102L-ZSP20XI 51-85160 54-pin TSOP II CY14E102N-BA20XCT 51-85128 48-ball FBGA Commercial CY14E102N-BA20XIT 51-85128 48-ball FBGA Industrial CY14E102N-BA20XI 51-85128 48-ball FBGA CY14E102N-ZSP20XCT 51-85160 54-pin TSOP II Commercial Industrial CY14E102N-ZSP20XIT 51-85160 54-pin TSOP II CY14E102N-ZSP20XI 51-85160 54-pin TSOP II Document Number: 001-45755 Rev. *A Page 15 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Ordering Information (continued) Speed (ns) 25 45 Ordering Code Package Diagram Package Type Operating Range CY14E102L-ZS25XCT 51-85087 44-pin TSOP II Commercial CY14E102L-ZS25XIT 51-85087 44-pin TSOP II Industrial CY14E102L-ZS25XI 51-85087 44-pin TSOP II CY14E102N-BA25XCT 51-85128 48-ball FBGA Commercial Industrial CY14E102L-BA25XIT 51-85128 48-ball FBGA CY14E102L-BA25XI 51-85128 48-ball FBGA CY14E102L-ZSP25XCT 51-85160 54-pin TSOP II Commercial CY14E102L-ZSP25XIT 51-85160 54-pin TSOP II Industrial CY14E102L-ZSP25XI 51-85160 54-pin TSOP II CY14E102N-BA25XCT 51-85128 48-ball FBGA Commercial CY14E102N-BA25XIT 51-85128 48-ball FBGA Industrial CY14E102N-BA25XI 51-85128 48-ball FBGA CY14E102N-ZSP25XCT 51-85160 54-pin TSOP II Commercial CY14E102N-ZSP25XIT 51-85160 54-pin TSOP II Industrial CY14E102N-ZSP25XI 51-85160 54-pin TSOP II CY14E102L-ZS45XCT 51-85087 44-pin TSOP II Commercial Industrial CY14E102L-ZS45XIT 51-85087 44-pin TSOP II CY14E102L-ZS45XI 51-85087 44-pin TSOP II CY14E102L-BA45XCT 51-85128 48-ball FBGA Commercial CY14E102L-BA45XIT 51-85128 48-ball FBGA Industrial CY14E102L-BA45XI 51-85128 48-ball FBGA CY14E102L-ZSP45XCT 51-85160 54-pin TSOP II Commercial Industrial CY14E102L-ZSP45XIT 51-85160 54-pin TSOP II CY14E102L-ZSP45XI 51-85160 54-pin TSOP II CY14E102N-BA45XCT 51-85128 48-ball FBGA Commercial CY14E102N-BA45XIT 51-85128 48-ball FBGA Industrial CY14E102N-BA45XI 51-85128 48-ball FBGA CY14E102N-ZSP45XCT 51-85160 54-pin TSOP II Commercial Industrial CY14E102N-ZSP45XIT 51-85160 54-pin TSOP II CY14E102N-ZSP45XI 51-85160 54-pin TSOP II All parts are Pb-free. The above table contains Advance information. Please contact your local Cypress sales representative for availability of these parts. Document Number: 001-45755 Rev. *A Page 16 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Part Numbering Nomenclature CY 14 E 102 L - ZS P 15 X C T Option: T - Tape & Reel Blank - Std. Temperature: C - Commercial (0 to 70°C) I - Industrial (–40 to 85°C) Pb-Free P - 54 Pin Blank - 44 Pin Package: BA - 48 FBGA ZS - TSOP II Voltage: E - 5.0V Data Bus: L - x8 N - x16 Speed: 15 - 15 ns 20 - 20 ns 25 - 25 ns 45 - 45 ns Density: 102 - 2 Mb NVSRAM 14 - Auto Store + Software Store + Hardware Store Cypress Document Number: 001-45755 Rev. *A Page 17 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Package Diagrams Figure 14. 44-Pin TSOP II DIMENSION IN MM (INCH) MAX MIN. PIN 1 I.D. 1 23 10.262 (0.404) 10.058 (0.396) 11.938 (0.470) 11.735 (0.462) 22 EJECTOR PIN 44 TOP VIEW 0.800 BSC (0.0315) OR E K X A SG BOTTOM VIEW 0.400(0.016) 0.300 (0.012) 10.262 (0.404) 10.058 (0.396) BASE PLANE 0.210 (0.0083) 0.120 (0.0047) 0°-5° 0.10 (.004) Document Number: 001-45755 Rev. *A 0.150 (0.0059) 0.050 (0.0020) 1.194 (0.047) 0.991 (0.039) 18.517 (0.729) 18.313 (0.721) SEATING PLANE 0.597 (0.0235) 0.406 (0.0160) 51-85087-*A Page 18 of 21 [+] Feedback CY14E102L, CY14E102N ADVANCE Package Diagrams (continued) Figure 15. 48-Ball FBGA - 6 mm x 10 mm x 1.2 mm BOTTOM VIEW TOP VIEW A1 CORNER Ø0.05 M C Ø0.25 M C A B A1 CORNER Ø0.30±0.05(48X) 2 3 4 5 6 6 5 4 3 2 1 C C E F G D E 2.625 D 0.75 A B 5.25 A B 10.00±0.10 10.00±0.10 1 F G H H 1.875 A A B 0.75 6.00±0.10 0.53±0.05 B 0.15 C 0.21±0.05 0.25 C 3.75 6.00±0.10 0.15(4X) Document Number: 001-45755 Rev. *A 1.20 MAX 0.36 SEATING PLANE C 51-85128-*D Page 19 of 21 [+] Feedback ADVANCE Package Diagrams CY14E102L, CY14E102N (continued) Figure 16. 54-Pin TSOP II 51-85160-** Document Number: 001-45755 Rev. *A Page 20 of 21 [+] Feedback ADVANCE CY14E102L, CY14E102N Document History Page Document Title: CY14E102L/CY14E102N 2-Mbit (256K x 8/128K x 16) nvSRAM Document Number: 001- 45755 REV. ECN NO. Orig. of Change ** 2470086 GVCH *A 2522209 GVCH/ AESA Submission Date Description of Change New Data Sheet 06/27/2008 Added 20 ns access speed information in “Features”. Added ICC1 for tRC=20 ns for both industrial and Commercial temperature Grade. Updated Thermal resistance values for 48-FBGA, 44-TSOP II and 54-TSOP II Packages. Added AC Switching Characteristics specs for 20 ns access speed. Added software controlled STORE/RECALL cycle specs for 20 ns access speed. Updated ordering information and part numbering nomenclature. Updated data sheet template. Sales, Solutions, and Legal Information Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at cypress.com/sales. Products PSoC Solutions PSoC psoc.cypress.com Clocks & Buffers clocks.cypress.com General Low Power/Low Voltage psoc.cypress.com/solutions psoc.cypress.com/low-power Wireless wireless.cypress.com Precision Analog Memories memory.cypress.com LCD Drive psoc.cypress.com/lcd-drive image.cypress.com CAN 2.0b psoc.cypress.com/can USB psoc.cypress.com/usb Image Sensors psoc.cypress.com/precision-analog © Cypress Semiconductor Corporation, 2008. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress. Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement. Document Number: 001-45755 Rev. *A Revised June 27, 2008 Page 21 of 21 AutoStore and QuantumTrap are registered trademarks of Simtek Corporation. All products and company names mentioned in this document are the trademarks of their respective holders. [+] Feedback