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FM93CS56 Dataheets PDF



Part Number FM93CS56
Manufacturers Fairchild Semiconductor
Logo Fairchild Semiconductor
Description (MICROWIRE Bus Interface) 2048-Bit Serial EEPROM with Data Protect and Sequential Read
Datasheet FM93CS56 DatasheetFM93CS56 Datasheet (PDF)

FM93CS56 (MICROWIRE Bus Interface) 2048-Bit Serial EEPROM with Data Protect and Sequential Read July 2000 FM93CS56 (MICROWIRE™ Bus Interface) 2048-Bit Serial EEPROM with Data Protect and Sequential Read General Description FM93CS56 is a 2048-bit CMOS non-volatile EEPROM organized as 128 x 16-bit array. This device features MICROWIRE interface which is a 4-wire serial bus with chipselect (CS), clock (SK), data input (DI) and data output (DO) signals. This interface is compatible to many of stan.

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FM93CS56 (MICROWIRE Bus Interface) 2048-Bit Serial EEPROM with Data Protect and Sequential Read July 2000 FM93CS56 (MICROWIRE™ Bus Interface) 2048-Bit Serial EEPROM with Data Protect and Sequential Read General Description FM93CS56 is a 2048-bit CMOS non-volatile EEPROM organized as 128 x 16-bit array. This device features MICROWIRE interface which is a 4-wire serial bus with chipselect (CS), clock (SK), data input (DI) and data output (DO) signals. This interface is compatible to many of standard Microcontrollers and Microprocessors. FM93CS56 offers programmable write protection to the memory array using a special register called Protect Register. Selected memory locations can be protected against write by programming this Protect Register with the address of the first memory location to be protected (all locations greater than or equal to this first address are then protected from further change). Additionally, this address can be “permanently locked” into the device, making all future attempts to change data impossible. In addition this device features “sequential read”, by which, entire memory can be read in one cycle instead of multiple single byte read cycles. There are 10 instructions implemented on the FM93CS56, 5 of which are for memory operations and the remaining 5 are for Protect Register operations. This device is fabricated using Fairchild Semiconductor floating-gate CMOS process for high reliability, high endurance and low power consumption. “LZ” and “L” versions of FM93CS56 offer very low standby current making them suitable for low power applications. This device is offered in both SO and TSSOP packages for small space considerations. Features I Wide VCC 2.7V - 5.5V I Programmable write protection I Sequential register read I Typical active current of 200µA 10µA standby current typical 1µA standby current typical (L) 0.1µA standby current typical (LZ) I No Erase instruction required before Write instruction I Self timed write cycle I Device status during programming cycles I 40 year data retention I Endurance: 1,000,000 data changes I Packages available: 8-pin SO, 8-pin DIP, 8-pin TSSOP Functional Diagram CS SK DI INSTRUCTION REGISTER VCC INSTRUCTION DECODER CONTROL LOGIC AND CLOCK GENERATORS PRE PE ADDRESS REGISTER PROTECT REGISTER COMPARATOR AND WRITE ENABLE HIGH VOLTAGE GENERATOR AND PROGRAM TIMER DECODER EEPROM ARRAY 16 READ/WRITE AMPS 16 VSS DATA IN/OUT REGISTER 16 BITS DO DATA OUT BUFFER © 2000 Fairchild Semiconductor International FM93CS56 Rev. C.1 1 www.fairchildsemi.com FM93CS56 (MICROWIRE Bus Interface) 2048-Bit Serial EEPROM with Data Protect and Sequential Read Connection Diagram Dual-In-Line Package (N) 8–Pin SO (M8) and 8–Pin TSSOP (MT8) CS SK DI DO 1 2 3 4 8 7 6 5 VCC PRE PE GND Top View Package Number N08E, M08A and MTC08 Pin Names CS SK DI DO GND PE PRE VCC Chip Select Serial Data Clock Serial Data Input Serial Data Output Ground Program Enable Protect Register Enable Power Supply Ordering Information FM 93 CS XX LZ E XXX Package Letter N M8 MT8 None V E Blank L LZ 56 C CS Interface 93 Description 8-pin DIP 8-pin SO 8-pin TSSOP 0 to 70°C -40 to +125°C -40 to +85°C 4.5V to 5.5V 2.7V to 5.5V 2.7V to 5.5V and <1µA Standby Current 2048 bits CMOS Data protect and sequential read MICROWIRE Temp. Range Voltage Operating Range Density Fairchild Memory Prefix 2 FM93CS56 Rev. C.1 www.fairchildsemi.com FM93CS56 (MICROWIRE Bus Interface) 2048-Bit Serial EEPROM with Data Protect and Sequential Read Absolute Maximum Ratings (Note 1) Ambient Storage Temperature All Input or Output Voltages with Respect to Ground Lead Temperature (Soldering, 10 sec.) ESD rating -65°C to +150°C +6.5V to -0.3V Operating Conditions Ambient Operating Temperature FM93CS56 FM93CS56E FM93CS56V Power Supply (VCC) 0°C to +70°C -40°C to +85°C -40°C to +125°C 4.5V to 5.5V +300°C 2000V DC and AC Electrical Characteristics VCC = 4.5V to 5.5V unless otherwise specified Symbol ICCA ICCS IIL IOL VIL VIH VOL1 VOH1 VOL2 VOH2 fSK tSKH tSKL tCS tCSS tPRES tDH tPES tDIS tCSH tPEH tPREH tDIH tPD tSV tDF tWP Parameter Operating Current Standby Current Input Leakage Output Leakage Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage Output Low Voltage Output High Voltage SK Clock Frequency SK High Time SK Low Time Minimum CS Low Time CS Setup Time PRE Setup Time DO Hold Time PE Setup Time DI Setup Time CS Hold Time PE Hold Time PRE Hold Time DI Hold Time Output Delay CS to Status Valid CS to DO in Hi-Z Write Cycle Time Conditions CS = VIH, SK=1.0 MHz CS = VIL VIN = 0V to VCC (Note 2) Min Max 1 50 ±-1 Units mA µA µA V V V MHz ns ns ns ns ns ns ns ns ns ns ns ns -0.1 2 IOL = 2.1 mA IOH = -400 µA IOL = 10 µA IOH = -10 µA (Note 3) 0°C to +70°C -40°C to +125°C (Note 4) 250 300 250 250 50 50 70 50 100 0 250 50 20 2.4 0.8 VCC +1 0.4 0.2 VCC - 0.2 1 500 500 CS = VIL 100 10 ns ns ns ms 3 FM93CS56 Rev. C.1 www.fairchildsemi.com FM93CS56 (MICROWIRE Bus Interface) 2048-Bit .


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