NTE6809 & NTE6809E
Integrated Circuit
NMOS, 8Bit Microprocessor (MPU)
Description:
The NTE6809 and NTE6809E are revolutionary high performance 8bit microprocessors in 40Lead
DIP type packages which support modern programming techniques such as position independece,
reentrancy, and modular programming.
The basic instructions of any computer are greatly enhanced by the presence of powerful addressing
modes. The NTE6809 and NTE6809E have the most complete set of addressing modes available
on any 8bit microprocessor today.
These devices contain hardware and software features which make them ideal processors for higher
level language execution or standard controller applications. External clock inputs are provided on
the NTE6809E to allow synchronization with peripherals, systems, or other MPUs.
Architectural Features:
D
Two 16Bit Index Registers
D
Two 16Bit Indexable Stack Pointers
D
Two 8Bit Accumulators can be Concatenated to Form One 16Bit Accumulator
D
Direct Page Register Allows Direct Addressing Throughout Memory
Hardware Features:
D
OnChip Oscillator (Crystal Frequency = 4 x E), NTE6809 Only
D
DMA/BREQ Allows DMA Operation on Memory Refresh, NTE6809 Only
D
External Clock Inputs, E and Q, Allow Synchronization, NTE6809E Only
D
TSC Input Controls Internal Bus Buffers, NTE6809E Only
D
LIC Indicates Opcode Fetch, NTE6809E Only
D
AVMA Allows Efficient Use of Common Resource in a Multiprocessor System, NTE6809E Only
D
BUSY is a Status Line for Multiprocessing, NTE6809E Only
D
Fast Interrupt Request Input Stacks Only Condition Code Register and Program Counter
D
MRDY Input Extends Data Across Times for Use with Slow Memory
D
Interrupt Acknowledge Output Allows Vectoring by Devices
D
Sync Acknowledge Output Allows for Synchronization to External Event
D
Single BusCycle RESET
D
Single 5V Supply Operation
D
NMI Inhibited After RESET Until After First Load Stack Pointer
D
Early Address Valid Allows Use with Slower Memories
D
Early Write Data for Dynamic Memories
Software Features:
D
10 Addressing Modes
S
M6800 Upward Compatible Addressing Modes
S
Direct Addressing Anywhere in Memory Map
S
Long RelativeBranches
S
Program Counter Relative
S
True Indirect Addressing
S
Expanded Indexed Addressing
0, 5, 8, or 16Bit Constant Offsets
8 or 16Bit Accumulator Offsets
AutoIncrement/Decrement by 1 or 2
D
Improved Stack Manipulation
D
1464 Instruction with Unique Addressing Modes
D
8 x 8 Unsigned Multiply
D
16Bit Arithmetic
D
Transfer/Exchange All Registers
D
Push/Pull Any Registers or Any Set of Registers
D
Load Effective Address
Absolute Maximum Ratings: (Note 1)
Supply Voltage, V
CC
0.3 to +7.0V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage, V
in
0.3 to +7.0V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, T
A
0
to +70
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
55
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, JunctiontoAmbient, R
thJA
100
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. These devices contain circuitry to protect the inputs against damage due to high static volt-
ages or electric fields; however, it is advised that normal precautions be taken to avoid ap-
plication of any voltage higher than maximum rated voltages to these high impedance cir-
cuits. Reliability of operation is enhanced if unused inputs are tied to an appropriate logic
voltage level (e.g., either V
SS
or V
CC
).
DC Electrical Characteristics: (V
CC
= 5V
5%, V
SS
= 0, T
A
= 0
to +70
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Input High Voltage
V
IH
V
SS
+2.0
V
CC
V
V
IHR
V
SS
+4.0
V
CC
V
NTE6809E Only
V
IHC
V
CC
0.75
V
CC
+0.3
V
Input Low Voltage
V
IL
V
SS
0.3
V
SS
+0.8
V
NTE6809E Only
V
ILC
V
SS
0.3
V
SS
+0.4
V
V
ILQ
V
SS
0.3
V
SS
+0.6
V
Input Leakage Current
I
in
V
in
= 0 to 5.25V, V
CC
= Max
2.5
A
NTE6809E Only (E)
100
A
DC Output High Voltage
V
OH
I
Load
= 145
A, V
CC
= Min
V
SS
+2.4
V
I
Load
= 205
A, V
CC
= Min
V
SS
+2.4
V
I
Load
= 100
A, V
CC
= Max
V
SS
+2.4
V
DC Output Low Voltage
V
OL
I
Load
= 2mA, V
CC
= Min
V
SS
+0.5
V
Internal Power Dissipation
P
INT
T
A
= 0
, Steady State Operation
1.0
W
DC Electrical Characteristics (Cont'd):
(V
CC
= 5V
5%, V
SS
= 0, T
A
= 0
to +70
C unless otherwise
specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Input Capacitance (Note 2
C
in
V
in
= 0, T
A
= +25
C, f = 1MHz
10
15
pF
NTE6809E Only (E)
30
50
pF
Output Capacitance (Note 2)
C
out
10
15
pF
Frequency of Operation
NTE6809
f
Crystal or External Input
0.4
4.0
MHz
NTE6809E
E and Q Inputs
0.1
1.0
MHz
HiZ (Off State) Input Current
D0 D7
I
TSI
V
in
= 0.4 to 2.4V, V
CC
= Max
2
10
A
A0 A15, R/W
100
A
Note 2. Capacitances are periodically tested rather than 100% tested.
NMI
IRQ
FIRQ
R/W
RESET
HALT
R/W
DMA/BREQ
RESET
HALT
FIRQ
NMI
IRQ
V
SS
Pin Connection Diagram
NTE6809
NTE6809E
A0
V
CC
A13
E
BA
D0
A3
A14
A15
D7
D6
D5
D4
D3
D2
D1
Q
MRDY
E X'tal
X'tal
A1
A12
A9
A4
1
2
3
4
5
BS
6
7
8
40
39
38
37
36
35
34
33
9
32
10
A2
11
31
30
12
29
13
A5
28
14
A6
27
A10
15
A7
26
16
A8
17
25
24
18
23
19
A11
22
20
21
BUSY
A0
V
CC
V
SS
A13
E
BA
D0
A3
A14
A15
D7
D6
D5
D4
D3
D2
D1
Q
AVMA
LIC
TSC
A1
A12
A9
A4
1
2
3
4
5
BS
6
7
8
40
39
38
37
36
35
34
33
9
32
10
A2
11
31
30
12
29
13
A5
28
14
A6
27
A10
15
A7
26
16
A8
17
25
24
18
23
19
A11
22
20
21
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