cop8tac9 National Semiconductor Corporation, cop8tac9 Datasheet - Page 2
cop8tac9
Manufacturer Part Number
cop8tac9
Description
8-bit Cmos Flash Microcontroller With 2k Byte Or 4k Byte Memory
Manufacturer
National Semiconductor Corporation
Datasheet
1.COP8TAC9.pdf
(59 pages)
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3.0 Block Diagram
4.0 Ordering Information
Note: The user, utilizing the COP8TAx9 Flash based devices during devel-
COP8
opment for applications to be produced using the COP8TAx5 ROM
devices, is cautioned to ensure that code contains NO calls to Boot
ROM functions prior to submission for ROM generation. Instances of
the JSRB instruction in ROM based devices will be executed as a JSR
instruction to a location in the first 256 bytes of Program Memory.
Feature Set
Family and
Indicator
TA
B = 2k
C = 4k
Program
Memory
Size
C
5 = Masked ROM
9 = Flash
Part Numbering Scheme
Program
Memory
Type
9
2
C = 20 Pin
E = 28 Pin
H = 44 Pin
No. Of Pins
Flash and ROM devices are not 100% identical. The execution of the
JSRB instruction is an example of the potential differences between
the devices. For this reason, the user is strongly advised to obtain a
masked ROM prototype devices before committing to production
quantities. This will allow the user to ensure there are no unexpected
differences between Flash an ROM devices within the application.
H
LQ = LLP
MW = SOIC WIDE
Package
Type
LQ
8 = -40 to +85˚C
20047501
Temperature
8
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