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PDF 93LC46 Data sheet ( Hoja de datos )
| Número de pieza | 93LC46 | |
| Descripción | 1K/2K/4K 2.0V Microwire Serial EEPROM | |
| Fabricantes | Microchip Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 93LC46 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
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Not recommended for new designs –
Please use 93LC46C, 93LC56C or 93LC66C.
93LC46/56/66
1K/2K/4K 2.5V Microwire Serial EEPROM
Features:
• Single supply with programming operation down
to 2.5V
• Low-power CMOS technology
• 100 µA typical active read current at 2.5V
• 3 µA typical standby current at 2.5V
• ORG pin selectable memory configuration
• 128 x 8- or 64 x 16-bit organization (93LC46)
• 256 x 8- or 128 x 16-bit organization (93LC56)
• 512 x 8 or 256 x 16 bit organization (93LC66)
• 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 ensured
• Data retention > 200 years
• 8-pin PDIP/SOIC
(SOIC in JEDEC standards)
• Temperature ranges supported:
- Industrial (I):
-40°C to +85°C
Description:
The Microchip Technology Inc. 93LC46/56/66 are 1K,
2K and 4K low voltage serial Electrically Erasable
PROMs (EEPROM). The device memory is configured
as x8 or x16 bits depending on the external logic of
levels of the ORG pin. Advanced CMOS technology
makes these devices ideal for low power nonvolatile
memory applications. The 93LC Series is available in
standard 8-pin PDIP and surface mount SOIC
packages. The rotated pin-out 93LC46X/56X/66X are
offered in the “SN” package only.
Package Types
PDIP/SOIC
CS 1
CLK 2
DI 3
DO 4
ROTATED SOIC
NU
VCC
CS
CLK
1
2
3
4
8 VCC
7 NU
6 ORG
5 VSS
8 ORG
7 VSS
6 DO
5 DI
Block Diagram
VCC VSS
Memory
Array
DI
ORG
CS
CLK
Data Register
Mode
Decode
Logic
Clock
Register
Address
Decoder
Address
Counter
Output
Buffer
DO
2004 Microchip Technology Inc.
DS21712B-page 1
1 page  
93LC46/56/66
TABLE 1-5: INSTRUCTION SET FOR 93LC66: ORG = 1 (X 16 ORGANIZATION)
Instruction SB
Opcode
Address
Data In
Data Out
READ
EWEN
ERASE
ERAL
WRITE
WRAL
EWDS
1 10 A7 A6 A5 A4 A3 A2 A1 A0
1 00 1 1 X X X X X X
1 11 A7 A6 A5 A4 A3 A2 A1 A0
1 00 1 0 X X X X X X
1 01 A7 A6 A5 A4 A3 A2 A1 A0
1 00 0 1 X X X X X X
1 00 0 0 X X X X X X
—
—
—
—
D15 - D0
D15 - D0
—
D15 - D0
High-Z
(RDY/BSY)
(RDY/BSY)
(RDY/BSY)
(RDY/BSY)
High-Z
Req. CLK
Cycles
27
11
11
11
27
27
11
TABLE 1-6: INSTRUCTION SET FOR 93LC66: ORG = 0 (X 8 ORGANIZATION)
Instruction SB
Opcode
Address
Data In
Data Out
READ
EWEN
ERASE
ERAL
WRITE
WRAL
EWDS
1 10 A8 A7 A6 A5 A4 A3 A2 A1 A0
— D7 - D0
1 00 1 1 X X X X X X X
— High-Z
1 11 A8 A7 A6 A5 A4 A3 A2 A1 A0
— (RDY/BSY)
1 00 1 0 X X X X X X X
— (RDY/BSY)
1
01 A8 A7 A6 A5 A4 A3 A2 A1 A0
D7 - D0 (RDY/BSY)
1 00 0 1 X X X X X X X
D7 - D0 (RDY/BSY)
1 00 0 0 X X X X X X X
— High-Z
Req. CLK
Cycles
20
12
12
12
20
20
12
2004 Microchip Technology Inc.
DS21712B-page 5
5 Page 
4.0 PACKAGING INFORMATION
4.1 Package Marking Information
8-Lead PDIP (300 mil)
XXXXXXXX
XXXXXNNN
YYWW
8-Lead SOIC (150 mil)
XXXXXXXX
XXXXYYWW
NNN
8-Lead Rotated SOIC (150 mil)
XXXXXXXX
XXXXYYWW
NNN
93LC46/56/66
Example:
93LC46
I/PNNN
YYWW
Example:
93LC46
I/SNYYWW
NNN
Example:
93LC46X
I/SNYYWW
NNN
Legend:
XX...X
YY
WW
NNN
Customer specific information*
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line thus limiting the number of available characters
for customer specific information.
* Standard OTP marking consists of Microchip part number, year code, week code, and traceability code.
2004 Microchip Technology Inc.
DS21712B-page 11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet 93LC46.PDF ] | |
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