FM28V202A 2-Mbit (128 K 16) F-RAM Memory 2-Mbit (128 K 16) F-RAM Memory Industrial temperature: 40 C to +85 C Features 44-pin thin small outline package (TSOP) Type II 2-Mbit ferroelectric random access memory (F-RAM) logically organized as 128 K 16 Restriction of hazardous substances (RoHS) compliant Configurable as 256 K 8 using UB and LB 14 Functional Overview High-endurance 100 trillion (10 ) read/writes 151-year data retention (see the Data Retention and The FM28V202A is a 128 K 16 nonvolatile memory that reads Endurance table) and writes similar to a standard SRAM. A ferroelectric random NoDelay writes access memory or F-RAM is nonvolatile, which means that data Page mode operation to 30-ns cycle time is retained after power is removed. It provides data retention for Advanced high-reliability ferroelectric process over 151 years while eliminating the reliability concerns, functional disadvantages, and system design complexities of SRAM compatible battery-backed SRAM (BBSRAM). Fast write timing and high Industry-standard 128 K 16 SRAM pinout write endurance make the F-RAM superior to other types of 60-ns access time, 90-ns cycle time memory. Advanced features The FM28V202A operation is similar to that of other RAM Software-programmable block write-protect devices and therefore, it can be used as a drop-in replacement for a standard SRAM in a system. Read cycles may be triggered Superior to battery-backed SRAM modules by CE or simply by changing the address and write cycles may No battery concerns be triggered by CE or WE. The F-RAM memory is nonvolatile Monolithic reliability due to its unique ferroelectric memory process. These features True surface mount solution, no rework steps make the FM28V202A ideal for nonvolatile memory applications Superior for moisture, shock, and vibration requiring frequent or rapid writes. Low power consumption The device is available in a 400-mil, 44-pin TSOP-II surface Active current 7 mA (typ) mount package. Device specifications are guaranteed over the Standby current 120 A (typ) industrial temperature range 40 C to +85 C. For a complete list of related documentation, click here. Low-voltage operation: V = 2.0 V to 3.6 V DD Logic Block Diagram 16 K x 16 block 16 K x 16 block 16 K x 16 block 16 K x 16 block A 16-2 A 16-0 16 K x 16 block 16 K x 16 block A 1-0 16 K x 16 block 16 K x 16 block . . . CE Column Decoder WE DQ 15-0 Control I/O Latch & Bus Driver UB, LB Logic OE ZZ Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 001-90309 Rev. *F Revised August 12, 2015 Address Latch & Write Protect Block & Row Decoder . . .FM28V202A Contents Pinout ................................................................................3 AC Switching Characteristics ....................................... 11 Pin Definitions ..................................................................3 SRAM Read Cycle .................................................... 11 Device Operation ..............................................................4 SRAM Write Cycle ..................................................... 12 Memory Operation .......................................................4 Power Cycle and Sleep Mode Timing ........................... 16 Read Operation ...........................................................4 Functional Truth Table ................................................... 17 Write Operation ...........................................................4 Byte Select Truth Table .................................................. 17 Page Mode Operation .................................................4 Ordering Information ...................................................... 18 Pre-charge Operation ..................................................4 Ordering Code Definitions ......................................... 18 Sleep Mode .................................................................4 Package Diagram ............................................................ 19 Software Write Protect ................................................5 Acronyms ........................................................................20 Software Write-Protect Timing ....................................7 Document Conventions ................................................. 20 SRAM Drop-In Replacement .......................................8 Units of Measure ....................................................... 20 Endurance ...................................................................8 Document History Page ................................................. 21 Maximum Ratings .............................................................9 Sales, Solutions, and Legal Information ...................... 22 Operating Range ...............................................................9 Worldwide Sales and Design Support ....................... 22 DC Electrical Characteristics ..........................................9 Products ....................................................................22 Data Retention and Endurance .....................................10 PSoC Solutions ...................................................... 22 Capacitance ....................................................................10 Cypress Developer Community ................................. 22 Thermal Resistance ........................................................10 Technical Support ..................................................... 22 AC Test Conditions ........................................................10 Document Number: 001-90309 Rev. *F Page 2 of 22