FM93C46EM8X Fairchild Semiconductor, FM93C46EM8X Datasheet

FM93C46EM8X

Manufacturer Part Number
FM93C46EM8X
Description
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of FM93C46EM8X

Density
1Kb
Interface Type
Serial (Microwire)
Organization
64x16
Frequency (max)
1MHz
Write Protection
Yes
Data Retention
40Year
Operating Supply Voltage (typ)
5V
Package Type
SOIC N
Operating Temp Range
-40C to 85C
Supply Current
1mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Lead Free Status / Rohs Status
Compliant

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Part Number
Manufacturer
Quantity
Price
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© 2000 Fairchild Semiconductor International
FM93C46 Rev. D.1
FM93C46 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 compat-
ible to many of standard Microcontrollers and Microprocessors.
There are 7 instructions implemented on the FM93C46 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 FM93C46 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 consid-
erations.
DO
CS
SK
DI
INSTRUCTION
REGISTER
ADDRESS
REGISTER
DECODER
DATA IN/OUT REGISTER
DATA OUT BUFFER
READ/WRITE AMPS
EEPROM ARRAY
16
16
16 BITS
CONTROL LOGIC
GENERATORS
INSTRUCTION
AND CLOCK
DECODER
I Wide V
I Typical active current of 200µA
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
10µA standby current typical
1µA standby current typical (L)
0.1µA standby current typical (LZ)
CC
2.7V - 5.5V
HIGH VOLTAGE
GENERATOR
PROGRAM
TIMER
AND
V
V
CC
SS
www.fairchildsemi.com
July 2000

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FM93C46EM8X Summary of contents

Page 1

... Microcontrollers and Microprocessors. There are 7 instructions implemented on the FM93C46 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 FM93C46 offer very low standby current making them suitable for low power applications ...

Page 2

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 ...

Page 3

Ambient Storage Temperature All Input or Output Voltages with Respect to Ground Lead Temperature (Soldering, 10 sec.) ESD rating I Operating Current CCA I Standby Current CCS I Input Leakage IL I Output Leakage OL V Input Low Voltage IL ...

Page 4

Ambient Storage Temperature All Input or Output Voltages with Respect to Ground Lead Temperature (Soldering, 10 sec.) ESD rating page 3 for V = 4.5V to 5.5V Operating Current CCA I Standby Current CCS L LZ (2.7V to ...

Page 5

... This is an active high input pin to FM93C46 EEPROM (the device) and is generated by a master that is controlling the device. A high level on this pin selects the device and a low level deselects the device. All serial communications with the device is enabled only when this pin is held high. However this pin cannot be permanently ...

Page 6

A typical Microwire cycle starts by first selecting the device (bringing the CS signal high). Once the device is selected, a valid Start bit (“1”) should be issued to properly recognize the cycle. Following this, the 2-bit opcode of appropriate ...

Page 7

... Refer Erase All cycle diagram. The Fairchild CMOS EEPROMs do not require an “ERASE” or “ERASE ALL” instruction prior to the “WRITE” or “WRITE ALL” instruction, respectively. The “ERASE” and “ERASE ALL” instructions are included to maintain compatibility with earlier technology EEPROMs ...

Page 8

SYNCHRONOUS DATA TIMING CS t CSS SK t DIS Valid Input DI DO (Data Read (Status Read) NORMAL READ CYCLE (READ Star t Opcode Bit Bits(2) DO 93C46: Address bits patter n ...

Page 9

WRITE DISABLE CYCLE (WDS ...

Page 10

ERASE CYCLE (ERASE ...

Page 11

All lead tips Typ. All Leads FM93C46 Rev. D.1 0.189 - 0.197 (4.800 ...

Page 12

Pin #1 IDENT 0.0433 Max (1.1) 0.0256 (0.65) Typ. Notes: Unless otherwise specified 1. Reference ...

Page 13

... Fairchild's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of Fairchild Semiconductor Corporation. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support ...

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