Cypress CY62146ESL manual

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Table of contents for the manual

  • Page 1

    CY62146ESL MoBL ® 4-Mbit (256K x 16) S tatic RAM Cypress Semiconductor Corpora tion • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document #: 001-43142 Rev . ** Revised January 04, 2008 Features ■ V ery high speed: 45 ns ■ Wide voltage range: 2.2V–3.6V and 4.5V– 5.5V ■ Ultra low standby power ❐ T ypical St andb y[...]

  • Page 2

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 2 of 12 Pin Configuration Figure 1. 44-Pin TSO P II (T op View) [1] Product Port folio Product Range V CC Range (V) [2] S peed (ns) Power Dissip ation Operating I CC , (mA) Stan db y , I SB2 ( μ A) f = 1MHz f = f max Ty p [3] Max Ty p [3] Max Ty p [3] Max CY62146ESL Industrial 2.2V–3.6V and [...]

  • Page 3

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 3 of 12 Maximum Ratings Exceeding the maximum ratings may impair the useful life of the device. These user guidelines are not teste d. S torage T emperature ............................ ...... –65°C to +150°C Ambient T emperat ure with Power Applied ....... .............. ... ........ .....[...]

  • Page 4

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 4 of 12 Cap acit ance T ested ini tially and after any design or proce ss changes that may affect these parameters. Parameter Description T est Conditio ns Max Unit C IN Input Capacitance T A = 25°C, f = 1 MHz, V CC = V CC(typ) 10 pF C OUT Output Capacit ance 10 pF Thermal Resist an ce T ested[...]

  • Page 5

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 5 of 12 Dat a Retentio n Characteristics Over the Operating Range Parameter Description Conditions Min Ty p [3] Max Unit V DR V CC for Dat a Retention 1.5 V I CCDR Data Retention Current CE > V CC – 0.2V , V IN > V CC – 0.2V or V IN < 0.2V V CC = 1.5V 1 7 μ A t CDR [7] Chip Desele[...]

  • Page 6

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 6 of 12 Switching Characteristics Over the Operating Range [9] Parameter Description 45 ns Unit Min Max Read Cycle t RC Read Cycle T ime 45 ns t AA Address to Data V alid 45 ns t OHA Data Hold from Address Change 10 ns t ACE CE LOW to Data V alid 45 ns t DOE OE LOW to Data V alid 22 ns t LZOE O[...]

  • Page 7

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 7 of 12 Switching W aveforms Figure 2. Read Cycle No.1: Address T ransition Controlled . [13, 14] Figure 3. Read Cycle No. 2: OE Controlled [14, 15] PREVIOUS DATA VALID DATA VALID RC t AA t OHA t RC ADDRESS DATA OUT 50% 50% DATA VALID t RC t ACE t LZBE t LZCE t PU HIGH IMPEDANCE I CC t HZOE t H[...]

  • Page 8

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 8 of 12 Figure 4. Write Cycle No 1: WE Controlled [1 2, 16, 17] Figure 5. Write Cycle 2: CE Cont ro lled [12, 16, 17] Switching W aveforms (con tinued) t HD t SD t PWE t SA t HA t AW t WC t HZOE DATA IN NOTE 18 t BW t SCE DATA IO ADDRESS CE WE OE BHE /BLE t HD t SD t PWE t HA t AW t SCE t WC t [...]

  • Page 9

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 9 of 12 Figure 6. Write Cycle 3: WE control led, OE LOW [1 7] Figure 7. Write Cycle 4: BHE /BLE Controlled, OE LOW [17] Switching W aveforms (con tinued) DATA IN t HD t SD t LZWE t PWE t SA t HA t AW t SCE t WC t HZWE t BW NOTE 18 CE ADDRESS WE DATA IO BHE /BLE t HD t SD t SA t HA t AW t WC DAT[...]

  • Page 10

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 10 of 12 T ruth T able CE WE OE BHE BLE Input s/Outputs Mode Power H X X X X High-Z Deselect/Power down S tandby (I SB ) L X X H H High-Z Output D isabled Active (I CC ) L H L L L Data Out (IO 0 –IO 15 ) Read Active (I CC ) LHLHL D a t a O u t ( I O 0 –IO 7 ); IO 8 –IO 15 in High-Z Read A[...]

  • Page 11

    CY62146ESL MoBL ® Document #: 001-43142 Rev . ** Page 1 1 of 12 Package Diagrams Figure 8. 44-Pin TSOP II, 51-85087 51-85087-* A [+] Feedback [+] Feedback[...]

  • Page 12

    Document #: 001-43142 Rev . ** Revised January 04, 2008 Page 12 of 12 MoBL is a reg istered trademar k and More Batt ery Life is a trad emark of Cypre ss Semiconducto r . All product and compan y names men tioned in this documen t are the trad emarks of th eir respectiv e holders. CY62146ESL MoBL ® © Cypress Semico nductor Corp oration, 200 8. Th[...]