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NM93C46 Dataheets PDF



Part Number NM93C46
Manufacturers Fairchild
Logo Fairchild
Description 1024-Bit Serial CMOS EEPROM (MICROWIRE Synchronous Bus)
Datasheet NM93C46 DatasheetNM93C46 Datasheet (PDF)

NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) February 2000 NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRE™ Synchronous Bus) General Description NM93C46 is a 1024-bit CMOS non-volatile EEPROM organized as 64 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. There are 7 instr.

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NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) February 2000 NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRE™ Synchronous Bus) General Description NM93C46 is a 1024-bit CMOS non-volatile EEPROM organized as 64 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. There are 7 instructions implemented on the NM93C46 for various Read, Write, Erase, and Write Enable/Disable 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 NM93C46 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 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 ADDRESS REGISTER 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 NM93C46 Rev. E 1 www.fairchildsemi.com NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) 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 VCC NC NC GND NC VCC CS SK 1 2 3 4 8 NC GND DO DI Normal 7 Pinout 6 5 Rotated Pinout 7 6 5 Top View Package Number N08E, M08A and MTC08 Pin Names CS SK DI DO GND NC VCC Chip Select Serial Data Clock Serial Data Input Serial Data Output Ground No Connect Power Supply NOTE: Pins designated as "NC" are typically unbonded pins. However some of them are bonded for special testing purposes. Hence if a signal is applied to these pins, care should be taken that the voltage applied on these pins does not exceed the VCC applied to the device. This will ensure proper operation. Ordering Information NM 93 C XX T LZ E XXX Package N M8 MT8 None V E Blank L LZ Blank T Density 46 C CS Interface 93 Letter 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 Normal Pinout Rotated Pinout 1024 bits CMOS Data protect and sequential read MICROWIRE Temp. Range Voltage Operating Range Fairchild Memory Prefix 2 NM93C46 Rev. E www.fairchildsemi.com NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) Absolut.


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