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:
Description:
• Densities from 1 Kbits through 16 Kbits
• Low-power CMOS technology
• Available with or without ORG function:
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 technology
makes these devices ideal for low power, nonvolatile
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). These packages are all
available in a Pb-free (Matte Tin) finish. Packaging with
the Sn/Pb finish is also available as a custom device.
With ORG function:
- ORG pin at Logic LO: 8-bit word
- ORG pin at Logic HI: 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
Temperature ranges supported:
- Industrial (I)
PDIP/SOIC
(P, SN)
8
VCC
CLK 2
7
PE
CLK
Serial Data Clock
DI
Serial Data Input
DO
Serial Data Output
VSS
7
VSS
ORG
CS
3
6
DO
DO
4
5
VSS
CLK
4
5
DI
Program Enable
(1,3)
DFN (MC)
CS
CLK
DI
DO
1
2
3
4
8
7
6
5
VCC
PE(2,3)
ORG(1,3)
VSS
TSSOP/MSOP
(ST, MS)
CS
CLK
DI
DO
1
2
3
4
8
7
6
5
SOT-23
(OT)
VCC
DO
PE(2,3)
VSS
ORG(1,3)
DI
VSS
1
6
VCC
2
5
CS
3
4
CLK
Ground
PE
2
VCC
6
Function
Chip Select
ORG
1
3
Pin Function Table
CS
(2,3)
(1,3)
8
NC
DI
-40°C to +125°C
Name
ROTATED SOIC
(ex: 93LC46BX)
1
CS
-40°C to +85°C
- Automotive (E)
Pin Diagrams (not to scale)
ORG
Memory Configuration
VCC
Power Supply
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.
Note:
ORG and PE functionality not available in
all products. See Table 1-1, Device
Selection Table.
Note:
Please visit www.microchip.com/Pbfree for the latest information on Pb-free conversion.
© 2005 Microchip Technology Inc.
DS21929A-page 1
