FM93C66N

FM93C66N Datasheet

FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read

Part	Datasheet
FM93C66N	FM93C66N (pdf)

Related Parts	Information
FM93CS66N	FM93CS66N
FM93CS66LM8	FM93CS66LM8
FM93C66LMT8	FM93C66LMT8
FM93C66EN	FM93C66EN
FM93C66M8	FM93C66M8

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FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read July 2000 FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read FM93CS66 is a 4096-bit CMOS non-volatile EEPROM organized as 256 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. FM93CS66 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 FM93CS66, 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 FM93CS66 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. 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 INSTRUCTION REGISTER INSTRUCTION DECODER CONTROL LOGIC AND CLOCK GENERATORS ADDRESS REGISTER PROTECT REGISTER COMPARATOR AND WRITE ENABLE VCC PRE PE HIGH VOLTAGE GENERATOR AND PROGRAM TIMER DECODER EEPROM ARRAY 16 READ/WRITE AMPS DATA IN/OUT REGISTER 16 BITS DATA OUT BUFFER 2000 Fairchild Semiconductor International FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read Connection Diagram Dual-In-Line Package N SO M8 and TSSOP MT8 CS 1 SK 2 DI 3 DO 4 7 PRE 5 GND Pin Names Top View Package Number N08E, M08A and MTC08 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 Package Temp. Range Voltage Operating Range Density Interface Letter Description N M8 MT8 8-pin DIP 8-pin SO 8-pin TSSOP None V E 0 to 70°C -40 to +125°C -40 to +85°C Blank L LZ 4.5V to 5.5V 2.7V to 5.5V 2.7V to 5.5V and <1µA Standby Current 4096 bits CMOS Data protect and sequential read MICROWIRE Fairchild Memory Prefix FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read Absolute Maximum Ratings Note 1 Operating Conditions 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 +300°C 2000V Ambient Operating Temperature FM93CS66 FM93CS66E FM93CS66V Power Supply VCC 0°C to +70°C -40°C to +85°C -40°C to +125°C 4.5V to 5.5V DC and AC Electrical Characteristics VCC = 4.5V to 5.5V unless otherwise specified Parameter Conditions Units ICCA ICCS IIL IOL VIL VIH VOL1 VOH1 VOL2 VOH2 fSK tSKH tSKL tCSS tPRES tDH tPES tDIS tCSH tPEH tPREH tDIH tPD

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FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read

July 2000

FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read

FM93CS66 is a 4096-bit CMOS non-volatile EEPROM organized as 256 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. FM93CS66 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 FM93CS66, 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 FM93CS66 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.

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

INSTRUCTION REGISTER

INSTRUCTION DECODER

CONTROL LOGIC AND CLOCK

GENERATORS

ADDRESS REGISTER

PROTECT REGISTER

COMPARATOR AND

WRITE ENABLE

VCC PRE PE

HIGH VOLTAGE GENERATOR AND PROGRAM TIMER

DECODER

EEPROM ARRAY 16

READ/WRITE AMPS

DATA IN/OUT REGISTER 16 BITS

DATA OUT BUFFER
2000 Fairchild Semiconductor International

FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read

Connection Diagram

Dual-In-Line Package N SO M8 and TSSOP MT8

CS 1 SK 2 DI 3 DO 4
7 PRE
5 GND

Pin Names

Top View Package Number N08E, M08A and MTC08

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

Package

Temp. Range

Voltage Operating Range

Density

Interface

Letter Description

N M8 MT8
8-pin DIP 8-pin SO 8-pin TSSOP

None V E
0 to 70°C -40 to +125°C -40 to +85°C

Blank L LZ
4.5V to 5.5V 2.7V to 5.5V 2.7V to 5.5V and <1µA Standby Current
4096 bits

CMOS

Data protect and sequential
read

MICROWIRE

Fairchild Memory Prefix

FM93CS66 MICROWIRE Bus Interface 4096-Bit Serial EEPROM with Data Protect and Sequential Read

Absolute Maximum Ratings Note 1

Operating Conditions

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
+300°C 2000V

Ambient Operating Temperature FM93CS66 FM93CS66E FM93CS66V

Power Supply VCC
0°C to +70°C -40°C to +85°C -40°C to +125°C
4.5V to 5.5V

DC and AC Electrical Characteristics VCC = 4.5V to 5.5V unless otherwise specified

Parameter

Conditions

Units

ICCA

ICCS IIL IOL VIL VIH VOL1 VOH1 VOL2 VOH2 fSK tSKH
tSKL
tCSS tPRES tDH tPES tDIS
tCSH tPEH tPREH tDIH tPD

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived FM93C66N Datasheet file may be downloaded here without warranties.

Datasheet ID: FM93C66N 514883