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93AA66A 데이터시트 PDF




Microchip Technology에서 제조한 전자 부품 93AA66A은 전자 산업 및 응용 분야에서
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부품번호 93AA66A 기능
기능 (93AA66A - 93AA66C) 4K Microwire Compatible Serial EEPROM
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93AA66A 데이터시트, 핀배열, 회로
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




93AA66A pdf, 반도체, 판매, 대치품
93AA66A/B/C, 93LC66A/B/C, 93C66A/B/C
TABLE 1-2: AC CHARACTERISTICS
All parameters apply over the specified
ranges unless otherwise noted.
Industrial (I): TA = -40°C to +85°C, VCC = +1.8V to +5.5V
Automotive (E): TA = -40°C to +125°C, VCC = +2.5V to +5.5V
Param.
No.
Symbol
Parameter
Min Max Units
Conditions
A1
FCLK
Clock frequency
A2
TCKH
Clock high time
A3
TCKL
Clock low time
A4
TCSS
Chip Select setup time
A5 TCSH Chip Select hold time
A6
TCSL
Chip Select low time
A7 TDIS Data input setup time
A8 TDIH Data input hold time
A9 TPD Data output delay time
A10 TCZ
A11 TSV
Data output disable time
Status valid time
A12 TWC
Program cycle time
— 3 MHz 4.5V VCC < 5.5V, 93XX66C only
2 MHz 2.5V VCC < 5.5V
1 MHz 1.8V VCC < 2.5V
200 — ns 4.5V VCC < 5.5V, 93XX66C only
250 ns 2.5V VCC < 5.5V
450 ns 1.8V VCC < 2.5V
100 — ns 4.5V VCC < 5.5V, 93XX66C only
200 ns 2.5V VCC < 5.5V
450 ns 1.8V VCC < 2.5V
50 — ns 4.5V VCC < 5.5V
100 ns 2.5V VCC < 4.5V
250 ns 1.8V VCC < 2.5V
0 — ns 1.8V VCC < 5.5V
250 — ns 1.8V VCC < 5.5V
50 — ns 4.5V VCC < 5.5V, 93XX66C only
100 ns 2.5V VCC < 5.5V
250 ns 1.8V VCC < 2.5V
50 — ns 4.5V VCC < 5.5V, 93XX66C only
100 ns 2.5V VCC < 5.5V
250 ns 1.8V VCC < 2.5V
— 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)
— 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
— 6 ms Erase/Write mode (AA and LC
versions)
A13 TWC
A14 TEC
A15 TWL
— 2 ms Erase/Write mode
(93C versions)
— 6 ms ERAL mode, 4.5V VCC 5.5V
— 15 ms WRAL mode, 4.5V VCC 5.5V
A16 —
Endurance
1M — cycles 25°C, VCC = 5.0V, (Note 2)
Note 1:
2:
This parameter is periodically sampled and not 100% tested.
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 obtained from Microchip’s web site
at www.microchip.com.
DS21795C-page 4
© 2005 Microchip Technology Inc.

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93AA66A 전자부품, 판매, 대치품
93AA66A/B/C, 93LC66A/B/C, 93C66A/B/C
2.4 Erase
The ERASE instruction forces all data bits of the speci-
fied address to the logical ‘1’ state. CS is brought low
following the loading of the last address bit. This falling
edge of the CS pin initiates the self-timed program-
ming cycle, except on ‘93C’ devices where the rising
edge of CLK before the last address bit initiates the
write cycle.
The DO pin indicates the Ready/Busy status of the
device if CS is brought high after a minimum of 250 ns
low (TCSL). DO at logical ‘0’ indicates that programming
is still in progress. DO at logical ‘1’ indicates that the
register at the specified address has been erased and
the device is ready for another instruction.
Note: Issuing a Start bit and then taking CS low
will clear the Ready/Busy status from DO.
FIGURE 2-1:
CS
ERASE TIMING FOR 93AA AND 93LC DEVICES
TCSL
Check Status
CLK
DI 1 1 1 AN AN-1 AN-2 ••• A0
High-Z
DO
FIGURE 2-2:
CS
ERASE TIMING FOR 93C DEVICES
TCSL
TSV
Busy
TWC
TCZ
Ready
High-Z
Check Status
CLK
DI 1 1 1 AN AN-1 AN-2 ••• A0
High-Z
DO
TSV
Busy
TWC
TCZ
Ready
High-Z
© 2005 Microchip Technology Inc.
DS21795C-page 7

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