LPR200
DEVICES INCORPORATED
16-bit Multilevel Pipeline Register
LPR200
DEVICES INCORPORATED
16-bit Multilevel Pipeline Register
DESCRIPTION
The
LPR200
is a programmable
multilevel pipeline register. This
device is pin-for-pin compatible with
the IDT73200.
The LPR200 contains eight 16-bit
high-speed pipeline registers which
can be configured as eight independent,
1-level pipelines; four independent,
2-level pipelines; two independent,
4-level pipelines; or as one 8-level
pipeline.
The Instruction pins, I
3-0
, control the
loading of the registers. The registers
can be configured as an eight-stage
delay line with data loaded into A
and shifted sequentially through B, C,
D, E, F, G and H as shown in Table 1.
The Instruction pins may also be set
to prevent any register from changing.
The Select lines, S
2-0
, control an 8-to-1
multiplexer which routes the contents
of any of the registers to the Y output
pins. The independence of the I and S
controls allow simultaneous write and
read operations on different registers.
FEATURES
u
Eight 16-bit High-Speed Pipeline
Registers
u
Programmable Multilevel Register
Configurations
u
u
u
u
Access time of 15 ns
Hold, Shift, and Load Instructions
Replaces IDT73200
52-pin PLCC, J-Lead
LPR200 B
LOCK
D
IAGRAM
C REG
D REG
A REG
B REG
A REG
MUX
B REG
C REG
D REG
MUX
E REG
F REG
OE
G REG
16
MUX
MUX
D
15-0
16
MUX
Y
15-0
H REG*
G REG
E REG
F REG
MUX
MUX
MUX
H REG
3
SEL
2-0
I
3-0
CLK
CEN
4
Pipeline Registers
1
08/16/2000–LDS.P200-C
LPR200
DEVICES INCORPORATED
16-bit Multilevel Pipeline Register
T
ABLE
1.
R
EGISTER
L
OAD
O
PERATIONS
Single 8-Level
Two 4-Level
SIGNAL DEFINITIONS
Power
V
CC
and GND
+5 V power supply. All pins must be
connected.
Clock
CLK — Master Clock
The rising edge of CLK strobes all
registers.
Inputs
D
15-0
— Data Input
16-bit data input port. Data is latched
into the registers on the rising edge of
CLK.
Outputs
Y
15-0
— Data Output
16-bit data output port.
Controls
I
3-0
— Instruction Control
The instruction control pins select
which register operation will be
carried out. Refer to Table 2.
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
Four 2-Level
Eight 1-Level
A
B
E
F
A
E
B
F
C
D
G
H
C
G
D
H
OE — Output Enable
SEL
2-0
— Output Select
The output select pins control which
register contents will appear at the
Y
15-0
output pins. Refer to Table 3.
CEN — Clock Enable
When CEN is LOW, the instruction
designated by I
3-0
is performed on the
registers. When CEN is HIGH, no
register operations are performed.
When OE is LOW, the register data
specified by SEL
2-0
is available on the
Y
15-0
output pins. When OE is HIGH,
the output port is in a high-impedance
state.
Pipeline Registers
2
08/16/2000–LDS.P200-C
LPR200
DEVICES INCORPORATED
16-bit Multilevel Pipeline Register
T
ABLE
3.
SEL
2
0
0
0
0
1
1
1
1
SEL
1
0
0
1
1
0
0
1
1
T
ABLE
2. LPR200 I
NSTRUCTION
T
ABLE
Inputs
Mnemonics
LDA
LDB
LDC
LDD
LDE
LDF
LDG
LDH
LSHAH
LSHAD
LSHEH
LSHAB
LSHCD
LSHEF
LSHGH
HOLD
I
3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
I
2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
I
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
I
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Description
D
15-0
©A
D
15-0
©B
D
15-0
©C
D
15-0
©D
D
15-0
©E
D
15-0
©F
D
15-0
©G
D
15-0
©H
D
15-0
©A
A©B B©C C©D D©E E©F F©G G©H
D
15-0
©A
A©B B©C C©D
D
15-0
©E
E©F F©G G©H
D
15-0
©A
A©B
D
15-0
©C
C©D
D
15-0
©E
E©F
D
15-0
©G
G©H
ALL REGISTERS ON HOLD
LPR200
O
UTPUT
S
ELECT
SEL
0
0
1
0
1
0
1
0
1
Y
15-0
A
B
C
D
E
F
G
H
Pipeline Registers
3
08/16/2000–LDS.P200-C
LPR200
DEVICES INCORPORATED
16-bit Multilevel Pipeline Register
M
AXIMUM
R
ATINGS
Above which useful life may be impaired (Notes 1, 2, 3, 8)
Storage temperature ........................................................................................................... –65°C to +155°C
Operating ambient temperature ........................................................................................... –55°C to +125°C
V
CC
supply voltage with respect to ground ............................................................................ –0.5 V to +7.0 V
Input signal with respect to ground ............................................................................... –0.5 V to V
CC
+ 0.5 V
Signal applied to high impedance output ...................................................................... –0.5 V to V
CC
+ 0.5 V
Output current into low outputs ............................................................................................................. 50 mA
Latchup current ............................................................................................................................... > 400 mA
O
PERATING
C
ONDITIONS
To meet specified electrical and switching characteristics
Mode
Active Operation, Commercial
Active Operation, Military
Temperature Range
(Ambient)
0°C to +70°C
–55°C to +125°C
Supply
Voltage
4.75 V
≤
V
CC
≤
5.25 V
4.50 V
≤
V
CC
≤
5.50 V
E
LECTRICAL
C
HARACTERISTICS
Over Operating Conditions (Note 4)
Symbol
V
OH
V
OL
V
IH
V
IL
I
IX
I
OZ
I
CC1
I
CC2
C
IN
C
OUT
Parameter
Output High Voltage
Output Low Voltage
Input High Voltage
Input Low Voltage
Input Current
Output Leakage Current
V
CC
Current, Dynamic
V
CC
Current, Quiescent
Input Capacitance
Output Capacitance
(Note 3)
Test Condition
Vcc
= Min.,
I
OH
= –8.0 mA
Vcc
= Min.,
I
OL
= 16 mA
Min
2.4
Typ
Max
Unit
V
0.4
2.0
0.0
V
CC
0.8
±20
±20
10
2.0
30
10
10
12
V
V
V
µA
µA
mA
mA
pF
pF
Ground
≤
V
IN
≤
V
CC
(Note 12)
(Note 12)
(Notes 5, 6)
(Note 7)
T
A
= 25°C, f = 1 MHz
T
A
= 25°C, f = 1 MHz
Pipeline Registers
4
08/16/2000–LDS.P200-C
432109876543210987654321
432109876543210987654321
432109876543210987654321
432109876543210987654321
*D
ISCONTINUED
S
PEED
G
RADE
DEVICES INCORPORATED
C
OMMERCIAL
O
PERATING
R
ANGE
(0°C to +70°C)
Notes 9, 10 (ns)
SWITCHING CHARACTERISTICS
16-bit Multilevel Pipeline Register
LPR200–
15
210987654321
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Min
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210987654321
Min
S
WITCHING
W
AVEFORMS
Symbol
t
ENA
t
DIS
t
HC
t
SC
t
HD
t
SD
t
HI
t
SI
t
SEL
t
PD
t
PW
t
CYC
SEL
2-0
D
15-0
Y
15-0
CLK
OE
I
3-0
Parameter
Three-State Output Enable Delay
(Note 11)
Three-State Output Disable Delay
(Note 11)
Clock Enable Hold Time
Clock Enable Setup Time
Data Hold Time
Data Setup Time
Instruction Hold Time
Instruction Setup Time
Select to Output Delay
Clock to Output Delay
Clock Pulse Width
Cycle Time
t
SD
t
SI
t
SEL
t
HD
t
HI
t
PD
5
t
DIS
t
PW
HIGH IMPEDANCE
20
5
2
4
5
2
2
5
20*
t
PW
Max
15
10
20
20
t
ENA
Pipeline Registers
Min
15
5
2
4
5
2
2
5
Max
15
10
15
9
08/16/2000–LDS.P200-C
LPR200
12
5
2
3
4
1
2
5
12*
Max
12
12
9
8