MCWOO
I
i
8-BIT MICROPROCESSING
UNIT (MPU)
I
The MC6800 is a monolithic 8-bit microprocessor forming the central
control function for Motorola鈥檚 M68~ family. Compatible with TTL, the
MC6B~, as with all M6800 system parts, requires only one + 5.O-volt
power supply, and no external TTL devices for bus interface.
The MC6800 is capable of addressing 64K bytes of memory with its
16-bit address lines. The 8-bit data bus is bidirectional as well as three-
state, making direct memory addressing and multiprocessing applica-
tions realizable.
q
8-Bit Parallel Processing
q
Bidirectional
Data Bus
鈥?Variable Length
Indexed,
.
.
16-Bit Address Bus 鈥?WK Bytes of Addressing
Seven Addressing Modes 鈥?Direct, Relative, Immediate,
Extended, Implied and Accumulator
q
72 Instructions
,>:
,,*!.
鈥?!.IC,[
. Vectored Restart
.}. 鈥?*$
,,2:+.(
~
鈥榽鈥濃€?1
*F.
. Maskable Interrupt Vector
~
..!鈥?
. Separate Non-Maskable Interrupt 鈥?Internal Registers Saved i#鈥欌€?:$$
, +, ~. ,{).
~,
,)i
.Y,:>, .,,,!,.
-,,,....
Stack
....
*: ,.. 鈥榠s
. Six Internal Registers 鈥?Two Accumulators, Index Regist~#?Y鈥?Y鈥?/div>
Program Counter, Stack Pointer and Condition Code Re~@te~
q
Direct Memory Addressing (D MA) and Multiple P~@$esso鈥檙
.:;.!,.,,>s,-.
Capability
,鈥?., . .+
,.,
,1鈥?- ,,:+~..,
鈥?-->,**.
*V
\>>>.,
q
Simplified Clocking Characteristics
鈥榽:?iii
...*鈥?+< *
,,:+,..,
鈥?~;:),t.{t,.
. Clock Rates as High as 2.0 MHz
,~>
*:;.>
q
Variable Length Stack
q
Simple Bus Interface Without
q
Halt and Single Instruction
uu. -
SUFFIX
CERAMIC PACKAGE
CASE 715
TTL
,$~~~~i$~鈥?/div>
Vss[
HALT[
PIN ASSIGNMENT
10
2
~
JRESET
39 ]TSC
38 ]N. C.
37
Executlo*k$~~$bility
,.*. .\
~
~$$~
鈥?:$*Y*:,F
. .., .it~
,.,.$,.>.
鈥榠,\,.*>
& 鈥榽~$
,{, ..,.
,:&f*, ~<~鈥?/div>
>
,>$ $$:$
~:
.~~
...
~+~,鈥?/div>
\*:,.:
,*..
.+~鈥?/div>
\,\<\!
;..
., \.J.*
.+,t~
INFORMATION
@l [ 3
KQ [ 4
342
VMA [ 5
m[
6
36 ]DBE
35 ]N, C.
34 ]Rl~
33 ] DO
32 ]Dl
31 ] D2
30 ] D3
29 ] D4
28 ] D5
27 ] D6
26 ] D7
25 ]A15
24 ]A14
23 JA13
22 ]A12
21 Jvss
w<,
.-1. $,)
..
,,,~~&Y@鈥橠ERING
BA [ 7
Package Type 鈥?:,~~equency (MHz)
ceramic+,,:,~f~ 鈥?/div>
1.0
L s~~i~ ~ 鈥?/div>
1.0
Temperature
Ooc
to
70掳c
鈥?0掳C
to 85掳C
Order Number
MC6800L
MC~~CL
Vccc
8
AC [ 9
Al [ 10
A2 [ 11
@y*+(k:::
Ti. .. ,
.
2.0
Ooc
to
70掳c
~rdio
.鈥?/div>
! 鈥?鈥?/div>
I
s suffix
Plastic
P
Suffix
1.0
1.0
1.5
1.5
2.0
1.0
1.0
1.5
1.5
2.0
O鈥渃 to 70掳c
鈥?0掳C to 85掳C
O鈥渃 to 70掳c
鈥?0掳C to 85掳C
O鈥渃 to 70掳c
O鈥渃 to 70掳c
鈥?0掳C
to
85掳C
O鈥渃
to
70掳c
鈥?40掳C
to
85掳C
Ooc
to
70掳c
MC68BOOL
MC68WS
MC@WCS
Mc68Ams
Mc68Amcs
MC68BOOS
MC6800P
MC6800C P
MC68AOOP
MC68AOOCP
MC68BOOP
A3[
A4[
12
13
A5 [ 14
A6 [ 15
A7 [ 16
A8 [ 17
A9 [ 16
A1O c
19
Al 1q 20
MOTOROLA INC., lW
DS9471-F
鈥斺€?/div>
-鈥斺€斺€?-鈥?/div>
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