© 2007 Microchip Technology Inc. DS21794E-page 1
93AA56A/B/C, 93LC56A/B/C,
93C56A/B/C
Device Selection Table
Features:
• Low-power CMOS technology
• ORG pin to select word size for ‘56C’ version
• 256 x 8-bit organization ‘A’ ver. devices (no ORG)
• 128 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 (R ead y/Bu sy )
• Seque nti al read function
• 1,000,000 E/W cycles
• Data retention > 200 y ears
• Pb-free and RoHS compliant
• Temperature ranges supported:
Pin Function Table
Description:
The Microchip Technology Inc. 93XX56A/B/C devices
are 2K bit low-voltage serial Electrically Erasable
PROMs (EEPROM). Word-selectable devices such as
the 93AA56C, 93LC56C or 93C56C are dependent
upon external logic levels driving the ORG pin to set
word size. For dedicated 8-bit communication, the
93XX56A devices are available, while the 93XX56B
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. All
packages are Pb-free and RoHS compliant.
Part Number V
CC Range ORG Pin Word Size Temp Ranges Packages
93AA56A 1.8-5.5 No 8-bit I P, SN, ST, MS, OT, MC
93AA56B 1.8-5-5 No 16-bit I P, SN, ST, MS, OT, MC
93LC56A 2.5-5.5 No 8-bit I, E P, SN, ST, MS, OT, MC
93LC56B 2.5-5.5 No 16-bit I, E P, SN, ST, MS, OT, MC
93C56A 4.5-5.5 No 8-bit I, E P, SN, ST, MS, OT, MC
93C56B 4.5-5.5 No 16-bit I, E P, SN, ST, MS, OT, MC
93AA56C 1.8-5.5 Yes 8 or 16-bit I P, SN, ST, MS, MC
93LC56C 2.5-5.5 Yes 8 or 16-bit I, E P, SN, ST, MS, MC
93C56C 4.5-5.5 Yes 8 or 16-bit I, E P, SN, ST, MS, MC
- Industrial (I) -40°C to +85°C
- Automotive (E) -40°C to +125°C
Name Function
CS Chip Select
CLK Serial Data Clock
DI Serial Data Input
DO Serial Data Output
V
SS Ground
NC No interna l conn ec tio n
ORG Memory Configuration
V
CC Power Supply
2K Micr owire Compatible Serial EEPROM
