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دیتاشیت - Fairchild - (MICROWIRE Bus Interface) 256-Bit Serial EEPROM with Data Protect and Sequential Read

شماره قطعه NM93CS06
شرح مفصل (MICROWIRE Bus Interface) 256-Bit Serial EEPROM with Data Protect and Sequential Read
تولید کننده Fairchild 
آرم Fairchild 


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NM93CS06 شرح
February 2000
NM93CS06
(MICROWIRE™ Bus Interface) 256-Bit Serial EEPROM
with Data Protect and Sequential Read
General Description
NM93CS06 is a 256-bit CMOS non-volatile EEPROM organized
as 16 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 compat-
ible to many of standard Microcontrollers and Microprocessors.
NM93CS06 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 NM93CS06, 5 of which are for
memory operations and the remaining 5 are for Protect Register
operations. This device is fabricated using Fairchild Semiconduc-
tor floating-gate CMOS process for high reliability, high endurance
and low power consumption.
“LZ” and “L” versions of NM93CS06 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
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
16
DATA IN/OUT REGISTER
16 BITS
DO DATA OUT BUFFER
VSS
© 1999 Fairchild Semiconductor Corporation
NM93CS06 Rev. F.2
1
www.fairchildsemi.com

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