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93AA46 Datasheet

1K Microwire Serial EEPROM

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93AA46 pdf
93AA46, 93LC46, 93C46
93AA46A/B, 93LC46A/B, 93C46A/B
1K Microwire® Serial EEPROM
Device Selection Table
Part
Number
93AA46
93LC46
93C46
93AA46A
93AA46B
93LC46A
93LC46B
93C46A
93C46B
VCC
Range
1.8-5.5
2.5-5.5
4.5-5.5
1.8-5.5
1.8-5-5
2.5-5.5
2.5-5.5
4.5-5.5
4.5-5.5
Org Pin Word Size
Temp
Ranges
Yes 8 or 16-bit
I
Yes 8 or 16-bit I, E
Yes 8 or 16-bit I, E
No 8-bit
I
No 16-bit
I
No 8-bit
I, E
No 16-bit
I, E
No 8-bit
I, E
No 16-bit
I, E
Features
• Low power CMOS technology
• ORG pin for selectable memory configuration
• No org pin for dedicated word sizes
- 128 x 8-bit organization ‘A’ version devices
- 64 x 16-bit organization ‘B’ version devices
• Self-timed ERASE and 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 during ERASE/WRITE cycles
• Sequential READ function
• 1,000,000 E/W cycles
• Data retention > 200 years
• 8-pin MSOP and 6-pin SOT
• Temperature ranges supported:
- Industrial (I):
-40°C to +85°C
- Automotive (E)
-40°C to +125°C
Package Types
MSOP
CS
CLK
DI
DO
1
2
3
4
8 VCC
7 NU
6 ORG*
5 VSS
* Org pin is not available on A/B devices
Description
The Microchip Technology Inc. 93AA46, 93LC46,
93C46, 93AA46A/B, 93LC46A/B & 93C46A/B are 1K
low voltage serial Electrically Erasable PROMs
(EEPROM). Generic memory devices such as the
93AA46, 93LC46 or 93C46 are dependent upon exter-
nal logic levels driving the ORG pin to set word size.
For dedicated 8-bit communication, the 93AA46A,
93LC46A or 93C46A devices are selected, while the
93AA46B, 93LC46B and 93C46B devices are selected
for 16 bits. Advanced CMOS technology makes these
devices ideal for low power, non-volatile memory
applications. This 93XX Series is available in standard
8-lead MSOP and 6-lead SOT-23 packages.
Block Diagram
VCC VSS
MEMORY
ARRAY
ADDRESS
DECODER
DI
ORG*
CS
DATA REGISTER
MODE
DECODE
LOGIC
ADDRESS
COUNTER
OUTPUT
BUFFER
DO
CLK
CLOCK
REGISTER
* Org input is not available on A/B devices
SOT-23**
DO 1
VSS 2
DI 3
6 VCC
5 CS
4 CLK
** SOT-23 device only offered in A/B versions
2002 Microchip Technology Inc.
DS21749A-page 1
Microchip Technology
Microchip Technology



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