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93LC66BEST

Description
4K Microwire Compatible Serial EEPROM
File Size273KB,24 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Download Datasheet View All

93LC66BEST Overview

4K Microwire Compatible Serial EEPROM

93AA66A/B/C, 93LC66A/B/C,
93C66A/B/C
4K Microwire Compatible Serial EEPROM
Device Selection Table
Part Number
93AA66A
93AA66B
93LC66A
93LC66B
93C66A
93C66B
93AA66C
93LC66C
93C66C
V
CC
Range
1.8-5.5
1.8-5-5
2.5-5.5
2.5-5.5
4.5-5.5
4.5-5.5
1.8-5.5
2.5-5.5
4.5-5.5
ORG Pin
No
No
No
No
No
No
Yes
Yes
Yes
Word Size
8-bit
16-bit
8-bit
16-bit
8-bit
16-bit
8 or 16-bit
8 or 16-bit
8 or 16-bit
Temp Ranges
I
I
I, E
I, E
I, E
I, E
I
I, E
I, E
Packages
P, SN, ST, MS, OT
P, SN, ST, MS, OT
P, SN, ST, MS, OT
P, SN, ST, MS, OT
P, SN, ST, MS, OT
P, SN, ST, MS, OT
P, SN, ST, MS
P, SN, ST, MS
P, SN, ST, MS
Features
Low-power CMOS technology
ORG pin to select word size for ‘66C version
512 x 8-bit organization ‘A’ ver. devices (no ORG)
256 x 16-bit organization ‘B’ ver. devices (no
ORG)
Self-timed ERASE/WRITE cycles (including
auto-erase)
Automatic ERAL before WRAL
Power on/off data protection circuitry
Industry standard 3-wire serial I/O
Device Status signal (READY/BUSY)
Sequential READ function
1,000,000 E/W cycles
Data retention > 200 years
Temperature ranges supported:
- Industrial (I)
- Automotive (E)
-40°C to +85°C
-40°C to +125°C
Description
The Microchip Technology Inc. 93XX66A/B/C devices
are 4K bit low voltage serial Electrically Erasable
PROMs (EEPROM). Word-selectable devices such as
the 93AA66C, 93LC66C or 93C66C are dependent
upon external logic levels driving the ORG pin to set
word size. For dedicated 8-bit communication, the
93AA66A, 93LC66A or 93C66A devices are available,
while the 93AA66B, 93LC66B and 93C66B devices
provide dedicated 16-bit communication. Advanced
CMOS technology makes these devices ideal for low
power, non-volatile memory applications. The entire
93XX Series is available in standard packages includ-
ing 8-lead PDIP and SOIC, and advanced packaging
including 8-lead MSOP, 6-lead SOT-23, and 8-lead
TSSOP. Pb-free (Pure Matte Sn) finish is also
available.
Package Types (not to scale)
ROTATED SOIC
(ex: 93LC66BX)
NC
1
2
3
4
8
7
6
5
ORG*
V
SS
DO
DI
CS
CLK
DI
DO
PDIP/SOIC
(P, SN)
1
2
3
4
SOT-23
(OT)
V
CC
NC
ORG*
V
SS
DO
V
SS
DI
1
2
3
Pin Function Table
Name
CS
CLK
DI
DO
V
SS
NC
ORG
V
CC
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
No internal connection
Memory Configuration
Power Supply
CS
CLK
DI
DO
Function
V
CC
CS
CLK
8
7
6
5
V
CC
NC
ORG*
V
SS
TSSOP/MSOP
(ST, MS)
1
2
3
4
8
7
6
5
6
5
4
V
CC
CS
CLK
* ORG pin is NC on A/B devices
2003 Microchip Technology Inc.
DS21795B-page 1
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