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  Microchip Technology Semiconductor Electronic Components Datasheet  

93AA66B Datasheet

(93AA66A - 93AA66C) 4K Microwire Compatible Serial EEPROM

No Preview Available !

93AA66B pdf
93AA66A/B/C, 93LC66A/B/C,
93C66A/B/C
4K Microwire Compatible Serial EEPROM
Device Selection Table
Part Number VCC Range
93AA66A
93AA66B
93LC66A
93LC66B
93C66A
93C66B
93AA66C
93LC66C
93C66C
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, MC
P, SN, ST, MS, OT, MC
P, SN, ST, MS, OT, MC
P, SN, ST, MS, OT, MC
P, SN, ST, MS, OT, MC
P, SN, ST, MS, OT, MC
P, SN, ST, MS, MC
P, SN, ST, MS, MC
P, SN, ST, MS, MC
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
Pin Function Table
Name
Function
CS Chip Select
CLK Serial Data Clock
DI Serial Data Input
DO Serial Data Output
VSS Ground
NC
ORG
No internal connection
Memory Configuration
VCC Power Supply
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
93XX66A devices are available, while the 93XX66B
devices provide dedicated 16-bit communication.
Advanced CMOS technology makes these devices
ideal for low-power, nonvolatile memory applications.
The entire 93XX Series is available in standard
packages including 8-lead PDIP and SOIC, and
advanced packaging including 8-lead MSOP, 6-lead
SOT-23, 8-lead 2x3 DFN and 8-lead TSSOP. Pb-free
(Pure Matte Sn) finish is available.
© 2005 Microchip Technology Inc.
DS21795C-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

93AA66B Datasheet

(93AA66A - 93AA66C) 4K Microwire Compatible Serial EEPROM

No Preview Available !

93AA66B pdf
93AA66A/B/C, 93LC66A/B/C, 93C66A/B/C
Package Types (not to scale)
ROTATED SOIC
(ex: 93LC46BX)
NC 1
VCC 2
CS 3
CLK 4
8 ORG*
7 VSS
6 DO
5 DI
PDIP/SOIC
(P, SN)
CS
CLK
DI
DO
1
2
3
4
8 VCC
7 NC
6 ORG*
5 VSS
TSSOP/MSOP
(ST, MS)
CS 1
CLK 2
DI 3
DO 4
8 VCC
7 NC
6
5
ORG*
VSS
SOT-23
(OT)
DO 1
VSS 2
DI 3
6
5
4
VCC
CS
CLK
DFN
CS 1
CLK 2
DI 3
DO 4
8 VCC
7 NC
6 ORG*
5 VSS
* ORG pin is NC on A/B devices
DS21795C-page 2
© 2005 Microchip Technology Inc.


Part Number 93AA66B
Description (93AA66A - 93AA66C) 4K Microwire Compatible Serial EEPROM
Maker Microchip Technology
Total Page 28 Pages
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