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
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.
• 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)
Pin Diagrams (not to scale)
• Self-timed Erase/Write cycles
(including auto-erase)
PDIP/SOIC
ROTATED SOIC
(P, SN)
(ex: 93LC46BX)
• 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
(1,3)
V
CC
(2,3)
ORG
1
2
3
4
1
2
3
4
CS
CLK
DI
8
7
6
5
NC
8
7
6
5
VCC
PE
VSS
(1,3)
ORG
CS
DO
DI
DO
CLK
V
SS
• 1,000,000 E/W cycles
• Data retention > 200 years
DFN (MC)
• Pb-free and RoHS compliant
• Temperature ranges supported:
CS
V
CC
PE(2,3)
1
8
7
6
5
CLK
DI
DO
2
3
4
ORG(1,3)
- Industrial (I)
-40°C to +85°C
-40°C to +125°C
VSS
- Automotive (E)
TSSOP/MSOP
(ST, MS)
SOT-23
(OT)
Pin Function Table
Name
Function
8
7
6
5
1
2
3
4
CS
VCC
1
2
3
6
5
4
V
CC
DO
PE(2,3)
ORG(1,3)
CLK
CS
CLK
DI
Chip Select
VSS
CS
CLK
DI
DO
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
DI
VSS
DO
Note 1: ORG pin: Only on 93XX46C/56C/66C/76C/86C.
2: PE pin: Only on 93XX76C/86C.
VSS
PE
Program Enable
Memory Configuration
Power Supply
3: ORG/PE: No internal connections on 93XXA/B.
ORG
VCC
Note:
ORG and PE functionality not available in
all products. See Table 1-1, Device
Selection Table.
© 2007 Microchip Technology Inc.
DS21929D-page 1