© 2005 Microchip Technology Inc. DS21749F-page 1
93AA46A/B/C, 93LC46A/B/C,
93C46A/B/C
Device Selection Table
Features:
• Low-power CMOS technology
• ORG pin to select word size for ‘46C’ version
• 128 x 8-bit organization ‘A’ version devices
(no ORG)
• 64 x 16-bit organization ‘B’ version 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
• Temperature ranges supported:
Pin Function Table
Description:
The Microchip Technology Inc. 93XX46A/B/C devices
are 1K bit low-voltage serial Electrically Erasable
PROMs (EEPROM). Word-selectable devices such as
the 93AA46C, 93LC46C or 93C46C are dependent
upon external logic levels driving the ORG pin to set
word size. For dedicated 8-bit communication, the
93AA46A, 93LC46A or 93C46A devices are available,
while the 93AA46B, 93LC46B and 93C46B 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 includ-
ing 8-lead PDIP and SOIC, and advanced packaging
including 8-lead MSOP, 6-lead SOT-23, 8-lead 2x3
DFN and 8-lea d TSSOP. Pb-free (Pure Matte Sn) finis h
is al so ava ilable.
Part Number V
CC Range ORG P in Word S ize Temp Ranges Packages
93AA 46A 1.8-5.5 No 8-bit I P, SN, ST, MS, OT, MC
93AA 46B 1.8-5-5 No 16-bit I P, SN, ST, MS, OT, MC
93LC46A 2.5-5.5 No 8-bit I, E P, SN, ST, MS, OT, MC
93LC46B 2.5-5.5 No 16-bit I, E P, SN, ST, MS, OT, MC
93C46A 4.5-5.5 No 8-bit I, E P, SN, ST, MS, OT, MC
93C46B 4.5-5.5 No 16-bit I, E P, SN, ST, MS, OT, MC
93AA 46C 1.8-5.5 Yes 8 or 16-bit I P, SN, ST, MS, MC
93LC46C 2.5-5.5 Yes 8 or 16-bit I, E P, SN, ST, MS, MC
93C46C 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 internal connection
ORG Memor y Confi guration
V
CC Power Supply
1K Micr owire Compatible Serial EEPROM
