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  Microchip Technology Semiconductor Electronic Components Datasheet  


93AA56A

(93AA56A/B/C) 2K Microwire Compatible Serial EEPROM


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93AA56A/B/C, 93LC56A/B/C,
93C56A/B/C
2K Microwire Compatible Serial EEPROM
Device Selection Table
Part Number VCC Range
93AA56A
93AA56B
93LC56A
93LC56B
93C56A
93C56B
93AA56C
93LC56C
93C56C
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 ‘56C’ version
• 256 x 8-bit organization ‘A’ ver. devices (no ORG)
• 128 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
• Pb-free and RoHS compliant
• Temperature ranges supported:
- Industrial (I)
-40°C to +85°C
- Automotive (E)
-40°C to +125°C
Pin Function Table
Name
Function
CS
CLK
DI
DO
VSS
NC
ORG
VCC
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
No internal connection
Memory Configuration
Power Supply
Description:
The Microchip Technology Inc. 93XX56A/B/C devices
are 2K bit low-voltage serial Electrically Erasable
PROMs (EEPROM). Word-selectable devices such as
the 93AA56C, 93LC56C or 93C56C are dependent
upon external logic levels driving the ORG pin to set
word size. For dedicated 8-bit communication, the
93XX56A devices are available, while the 93XX56B
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. All
packages are Pb-free and RoHS compliant.
© 2007 Microchip Technology Inc.
DS21794E-page 1



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93AA56A pdf
93AA56A/B/C, 93LC56A/B/C, 93C56A/B/C
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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 VCC
5 CS
4 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
DS21794E-page 2
© 2007 Microchip Technology Inc.



Part Number 93AA56A
Description (93AA56A/B/C) 2K Microwire Compatible Serial EEPROM
Maker Microchip Technology - Microchip Technology
Total Page 28 Pages
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