NM93C86AL 16 384-Bit Serial Interface Low Voltage
CMOS EEPROM (MICROWIRE Synchronous Bus)
September 1996
NM93C86AL
16 384-Bit Serial Interface Low Voltage
CMOS EEPROM (MICROWIRE
TM
Synchronous Bus)
General Description
The NM93C86AL is 16 384 bits of CMOS nonvolatile elec-
trically erasable memory available user organized as either
1024 16-bit registers or 2048 8-bit registers The user orga-
nization is determined by the status of the ORG input The
memory device is fabricated using National Semiconduc-
tor鈥檚 floating gate CMOS process for high reliability high
endurance and low power consumption The NM93C86AL
is available in an 8-pin SO package for space considera-
tions
The EEPROM is MICROWIRE compatible for simple inter-
facing to a wide variety of microcontrollers and microproc-
essors There are 7 instructions that operate the
NM93C86AL Read Erase Write Enable Erase Write
Erase Write Disable Write All and Erase All
The NM93C86AL defaults to the 1024 x 16 configuration if
the ORG pin (Pin 6) is left floating as it is internally pulled up
to V
CC
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
2 7V to 5 5V operation in all modes
Typical active current of 100
mA
Typical standby
current of 1
mA
Device status indication during programming mode
No erase required before write
Reliable CMOS floating gate technology
MICROWIRE compatible serial I O
Self-timed programming cycle
40 years data retention
Endurance 10
6
data changes
Packages available 8-pin SO 8-pin DIP
Block Diagram
TL D 12511 鈥?1
TRI-STATE is a registered trademark of National Semiconductor Corporation
MICROWIRE
TM
is a trademark of National Semiconductor Corporation
C
1996 National Semiconductor Corporation
TL D 12511
RRD-B30M96 Printed in U S A
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