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Integrated Device Technology Electronic Components Datasheet

IDT39C11B Datasheet

4-Bit CMOS Microprocessor Sequencer

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FEATURES:
• Low-power CMOS
-Commercial - 45mA (max.)
-Military - 55mA (max.)
• Fast
-A versions meet standard speeds
-8 versions are 20% speed upgrades
• 9-Deep stack
-Accommodates nested loops and subroutines
• Cascadable
-Infinitely expandable in 4-bit increments
• Available in 28-pin DIP/LCC (IDT39C09) and 20-pin
DIP/LCC (IDT39C11)
• Pin-compatible, functional enhancement for all versions of
the 2909/2911
• Military product available 100% screened to MIL-STD-883,
Class 8
The IDT39C09/11 devices are high-speed, 4-bit address
sequencers intended for controlling the sequence of micro-
instructions located in the microprogram memory. They are fully
cascadable and can be expanded to any increment of 4 bits.
The IDT39C09s can select an address from any four sources:
1) external direct inputs (D); 2) external data from the R inputs,
stored in an internal register; 3) a 9-word deep push-pop stack; or
4) a program counter register. Also included in the stack are
additional control functions which efficiently execute nested
subroutine linkage. Each output can be ORed with an external
input for conditional skip or branch instructions. A ZERO input
line forces the outputs to all zeroes. All outputs are three-state
and are controlled by the OE (Output Enable) pin.
The IDT39C11s operate identically to the IDT39C09s except
the four OR outputs are removed and the D and R inputs are tied
together. They are fabricated using CEMOS", a single poly,
double metal CMOS technology designed for high-performance
and high-reliability. Military product is 100% screened to MIL-
STD-883, Class 8, making them ideally suited to military temper-
ature applications demanding the highest level of performance
and reliability.
II
FUNCTIONAL BLOCK DIAGRAM := _~(~:!:~CO! ~~!l_J
r----
I
i i E - - iI,----<. .
I
I
f(NOTE 1)
I
4
PUP FE
t----o<}----t--- CP
So
S,
rTD{T~~1:9-~O~N~LY~-Li::e:::~::t:~~
I ORa~--~--+-~~~
I ORoI
1_
_
_O_R_,__~---------1~!--,+-.
MICROPROGRAM
COUNTER
REGISTER
4
Yo Y, Ya Y3 Cn
Nole 1: D and R connecled on IDT39C11 only.
CEMOS and MICROSLICE are trademarks of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
C1986 Integrated Device Technology, Inc.
3-47
C.,..
MSD39C09-0[:l1
JULY 1986
Printed in the U.S.A.


Integrated Device Technology Electronic Components Datasheet

IDT39C11B Datasheet

4-Bit CMOS Microprocessor Sequencer

No Preview Available !

IDT39C09A1B AND IDT39C11A1B
4-BIT CMOS MICROPROGRAM SEQUENCER
MILITARV AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
IDT39C09
DIP
TOP VIEW
Vee
CP
pUP
FE
Cn+4
Cn
aE
Vv_3
V,
Vo
S,
So
ZERO
IDT39C11
CP
Vee
RE
03
D_
0,
Do
GND
ZERO
So
PUP
FE
Cn+4
Cn
OE
Va
V_
V,
Vo
S,
DIP
TOP VIEW
MSD39C09-004
Ro
OR 3
03
IDT39C09
...
...rE rll~ ~u o... ::J
'I " ., II II II II
L.JLJ ,0 I I LJ L.J LJ
-, 4
-"5
3
2
I , 28
LJ
1
27
26r-
2s L -
:J6 24[:
:J 7 23[-=.
FE
C n+4
Cn
OR_ :J8
22[-:" OE
0_ :J9
21[: Va
OR, :JlO
20[: V_
rr--rl rifl fl rl0,
-,11
-~
f~ 19r- V,
eno0:0
C §] I~
,,~
t3
~
LCC
TOP VIEW
MSD39C09-003
III!ID~Tu39.u.C. 1:..:..1J.. I~
LJ
LJ
'
I
,
I
~J
LJ
2 LJ 20
0 3 1 CO'o
D_ Cn
0, OE
Do
GND
, , , ,r,
'a
r, 'I
11
r,
II
12
r,
r,
"
I~ t3 rn~>
V3
V_
LCC
TOP VIEW
MSD39C09..oos
PIN DESCRIPTION
NAME I/O
DESCRIPTION
S,. So
I Control lines for address source selection.
FE, PUP I Control lines for push/pop stack.
RE I Enable line for internal address register.
OR,
I
Logic OR inputs on each address output line.
(IDT39C09 ONLY)
ZERO
I Logic AND input on the output lines.
OE
I
Output Enable. When OE is HIGH, the Youtputs
are OFF (high impedance).
Cn I Carry-in to the incrementer.
R,
I
Inputs to the internal address register.
(IDT39C09 ONLY)
D, I Direct inputs to the multiplexer.
CP
I
Clock input to the AR and "PC register and
Push-Pop stack.
Y,
0
Address outputs from IDT39C09/11. (Address
inputs to control memory.)
Cn + 4
0 Carry out from the incrementer
3-48


Part Number IDT39C11B
Description 4-Bit CMOS Microprocessor Sequencer
Maker IDT
Total Page 14 Pages
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