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What is 93AA66B?

This electronic component, produced by the manufacturer "Microchip Technology", performs the same function as "(93AAxxx) 1K-16K Microwire Compatible Serial EEPROMs".


93AA66B Datasheet PDF - Microchip Technology

Part Number 93AA66B
Description (93AAxxx) 1K-16K Microwire Compatible Serial EEPROMs
Manufacturers Microchip Technology 
Logo Microchip Technology Logo 


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93AA46A/B/C, 93LC46A/B/C, 93C46A/B/C
93AA56A/B/C, 93LC56A/B/C, 93C56A/B/C
93AA66A/B/C, 93LC66A/B/C, 93C66A/B/C
93AA76A/B/C, 93LC76A/B/C, 93C76A/B/C
93AA86A/B/C, 93LC86A/B/C, 93C86A/B/C
1K-16K Microwire Compatible Serial EEPROMs
Features:
• Densities from 1 Kbits through 16 Kbits
• Low-power CMOS technology
• Available with or without ORG function:
With ORG function:
- ORG pin at Logic Low: 8-bit word
- ORG pin at Logic High: 16-bit word
Without ORG function:
- ‘A’ version: 8-bit word
- ‘B’ version: 16-bit word
• Program Enable pin:
- Write-protect for entire array
(93XX76C and 93XX86C only)
• 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:
www.DataSheet4U.com
- Industrial (I)
-40°C to +85°C
- Automotive (E)
-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
PE Program Enable
ORG Memory Configuration
VCC
Note:
Power Supply
ORG and PE functionality not available in
all products. See Table 1-1, Device
Selection Table.
Description:
Microchip Technology Inc. supports the 3-wire
Microwire bus with low-voltage serial Electrically
Erasable PROMs (EEPROM) that range in density
from 1 Kbits up to 16 Kbits. Each density is available
with and without the ORG functionality, and selected
by the part number ordered. Advanced CMOS technol-
ogy makes these devices ideal for low-power, nonvol-
atile memory applications. The entire series of
Microwire devices are available in the standard 8-lead
PDIP and SOIC packages, as well as the more
advanced packaging such as the 8-lead MSOP, 8-lead
TSSOP, 6-lead SOT-23, and 8-lead DFN (2x3). All
packages are Pb-free.
Pin Diagrams (not to scale)
PDIP/SOIC
(P, SN)
CS 1
CLK 2
DI 3
DO 4
8
7
6
5
ROTATED SOIC
(ex: 93LC46BX)
VCC
NC
(2,3)
PE VCC
(1,3)
ORG CS
1
2
3
(1,3)
8 ORG
7 VSS
6 DO
VSS CLK 4
5 DI
DFN (MC)
CS 1
CLK 2
DI 3
DO 4
8 VCC
7 PE(2,3)
6 ORG(1,3)
5 VSS
TSSOP/MSOP
(ST, MS)
CS
CLK
DI
DO
1
2
3
4
8 VCC
DO
7 PE(2,3)
6 ORG(1,3) VSS
5 VSS
DI
SOT-23
(OT)
16
25
34
VCC
CS
CLK
Note 1: ORG pin: Only on 93XX46C/56C/66C/76C/86C.
2: PE pin: Only on 93XX76C/86C.
3: ORG/PE: No internal connections on 93XXA/B.
© 2007 Microchip Technology Inc.
DS21929D-page 1

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93AA66B equivalent
93XX46X/56X/66X/76X/86X
TABLE 2-2: AC CHARACTERISTICS
All parameters apply over the specified
ranges unless otherwise noted.
VCC = 1.8V to 5.5V
Industrial (I): TA = -40°C to +85°C
Automotive (E): TA = -40°C to +125°C
Param.
No.
Symbol
Parameter
Min.
Max. Units
Conditions
A1
FCLK
Clock frequency
— 3 MHz 4.5V VCC < 5.5V
2 MHz 2.5V VCC < 4.5V
1 MHz 1.8V VCC < 2.5V
A2
TCKH
Clock high time
200 — ns 4.5V VCC < 5.5V
250 ns 2.5V VCC < 4.5V
450 ns 1.8V VCC < 2.5V
A3
TCKL
Clock low time
100 — ns 4.5V VCC < 5.5V
200 ns 2.5V VCC < 4.5V
450 ns 1.8V VCC < 2.5V
A4
TCSS
Chip Select setup time
50 — ns 4.5V VCC < 5.5V
100 ns 2.5V VCC < 4.5V
250 ns 1.8V VCC < 2.5V
A5 TCSH Chip Select hold time
0 — ns 1.8V VCC < 5.5V
A6
TCSL
Chip Select low time
250 — ns 1.8V VCC < 5.5V
A7 TDIS Data input setup time
50 — ns 4.5V VCC < 5.5V
100 ns 2.5V VCC < 4.5V
250 ns 1.8V VCC < 2.5V
A8 TDIH Data input hold time
50 — ns 4.5V VCC < 5.5V
100 ns 2.5V VCC < 4.5V
250 ns 1.8V VCC < 2.5V
A9 TPD Data output delay time
— 100 ns 4.5V VCC < 5.5V, CL = 100 pF
(93C76X/86X)
www.DataSheeAt41U0.com TCZ
Data output disable time
— 200 ns 4.5V VCC < 5.5V, CL = 100 pF
250 ns 2.5V VCC < 4.5V, CL = 100 pF
400 ns 1.8V VCC < 2.5V, CL = 100 pF
— 100 ns 4.5V VCC < 5.5V, (Note 1)
200 ns 1.8V VCC < 4.5V, (Note 1)
A11 TSV
Status valid time
— 200 ns 4.5V VCC < 5.5V, CL = 100 pF
300 ns 2.5V VCC < 4.5V, CL = 100 pF
500 ns 1.8V VCC < 2.5V, CL = 100 pF
A12 TWC
Program cycle time
— 5 ms Erase/Write mode
93XX76X/86X
(AA and LC versions)
— 6 ms 93XX46X/56X/66X
(AA and LC versions)
A13 TWC
— 2 ms 93C46X/56X/66X/76X/86X
A14 TEC
Program cycle time
— 6 ms ERAL mode, 4.5V VCC 5.5V
A15 TWL
— 15 ms WRAL mode, 4.5V VCC 5.5V
A16 —
Endurance
1M — cycles 25°C, VCC = 5.0V, (Note 2)
Note 1: This parameter is periodically sampled and not 100% tested.
2: This application is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance™ Model which may be downloaded from Microchip’s web
site at www.microchip.com.
© 2007 Microchip Technology Inc.
DS21929D-page 5


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