®
MULTILEVEL
PIPELINE REGISTER
Integrated Device Technology, Inc.
IDT29FCT520A
IDT29FCT520B
IDT29FCT520C
FEATURES:
• Equivalent to AMD’s Am29520 bipolar Multilevel Pipeline
Register in pinout/function, speed and output drive over
full temperature and voltage supply extremes
• Four 8-bit high-speed registers
• Dual two-level or single four-level push-only stack
operation
• All registers available at multiplexed output
• Hold, transfer and load instructions
• Provides temporary address or data storage
• I
OL
= 48mA (commercial), 32mA (military)
• CMOS power levels (1mW typ. static)
• Substantially lower input current levels than AMD’s
bipolar (5µA typ.)
• TTL input and output level compatible
• CMOS output level compatible
• Manufactured using advanced CMOS processing
• Available in 300 mil plastic and hermetic DIP, as well as
LCC, SOIC and CERPACK
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• Military product compliant to MIL-STD-883, Class B
DESCRIPTION:
The IDT29FCT520A/B/C contains four 8-bit positive edge-
triggered registers. These may be operated as a dual 2-level
or as a single 4-level pipeline. A single 8-bit input is provided
and any of the four registers is available at the 8-bit, 3-state
output.
In the IDT29FCT520A/B/C when data is entered into the
first level (I = 2 or I = 1), the existing data in the first level is
moved to the second level. Transfer of data to the second
level is achieved using the 4-level shift instruction (I = 0). This
transfer also causes the first level to change.
FUNCTIONAL BLOCK DIAGRAMS
D
0
-D
7
8
MUX
I
0
,I
1
2
REGISTER
CONTROL
CLK
1
OCTAL REG. A1
OCTAL REG. B1
OCTAL REG. A2
OCTAL REG. B2
S
0
,S
1
2
MUX
OE
8
Y
0
-Y
7
2620 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1992
Integrated Device Technology, Inc.
MAY 1992
DSC-4608/2
7.2
1
IDT29FCT520A/B/C
MULTILEVEL PIPELINE REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
I
0
I
1
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
CLK
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
P24-1,
D24-1,
E24-1
&
SO24-2
21
20
19
18
17
16
15
14
13
D
7
CLK
GND
NC
OE
Y
7
Y
6
Vcc
S
0
S
1
Y
0
Y
1
Y
2
Y
3
Y
4
Y
5
Y
6
Y
7
OE
INDEX
4
D
0
I
1
I
0
NC
Vcc
S
0
S
1
3
2
1
28 27 26
25
24
23
5
6
7
8
9
10
D
1
D
2
D
3
NC
D
4
D
5
D
6
L28-1
22
21
20
11
19
12 13 14 15 16 17 18
Y
0
Y
1
Y
2
NC
Y
3
Y
4
Y
5
2620 drw 02
DIP/CERPACK/SOIC
TOP VIEW
LCC
TOP VIEW
DEFINITION OF FUNCTIONAL TERMS
Pin Names
D
n
CLK
I
0
, I
1
S
0
, S
1
Description
Register input port.
Clock input. Enter data into registers on LOW-
to-HIGH transitions.
Instruction inputs. See Figure 1 and
struction Control Tables.
In-
REGISTER SELECTION
S
1
0
0
1
1
S
0
0
1
0
1
Register
B
2
B
1
A
2
A
1
2620 tbl 02
Multiplexer select. Inputs either register A
1
, A
2
,
B
1
or B
2
data to be available at the output port.
Output enable for 3-state output port
Register output port.
2620 tbl 01
OE
Y
n
7.2
2
IDT29FCT520A/B/C
MULTILEVEL PIPELINE REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DUAL 2-LEVEL
SINGLE 4-LEVEL
A
1
B
1
A
1
B
1
A
1
B
1
A
2
B
2
A
2
B
2
A
2
B
2
I=2
NOTE:
1. I = 3 for hold.
I=1
I=0
2620 drw 03
Figure 1. Data Loading in 2-Level Operation
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Rating
(2)
V
TERM
Terminal Voltage
with Respect
to GND
(3)
V
TERM
Terminal Voltage
with Respect
to GND
T
A
Operating
Temperature
T
BIAS
Temperature
Under Bias
T
STG
Storage
Temperature
P
T
Power Dissipation
I
OUT
DC Output Current
Commercial
Military
Unit
–0.5 to +7.0 –0.5 to +7.0
V
CAPACITANCE
(T
A
= +25°C, f = 1.0MHz)
Symbol Parameter
(1)
C
IN
C
OUT
Input Capacitance
Conditions Typ.
V
IN
= 0V
6
8
Max.
10
12
Unit
pF
pF
Output Capacitance V
OUT
= 0V
–0.5 to V
CC
–0.5 to V
CC
V
NOTE:
2620 tbl 04
1. This parameter is measured at characterization data but not tested.
0 to +70
–55 to +125
–55 to +125
0.5
120
–55 to +125
–65 to +135
–65 to +150
0.5
120
°C
°C
°C
W
mA
NOTES:
2620 tbl 03
1. Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other
conditions above those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability. No terminal voltage
may exceed V
CC
by +0.5V unless otherwise noted.
2. Inputs and V
CC
terminals.
3. Outputs and I/O terminals.
7.2
3
IDT29FCT520A/B/C
MULTILEVEL PIPELINE REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: V
LC
= 0.2V, V
HC
= V
CC
– 0.2V
Commercial: T
A
= 0°C to +70°C, V
CC
= 5.0V
±
5%; Military: T
A
= –55°C to +125°C, V
CC
= 5.0V
±
10%
Symbol
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
V
IK
I
OS
V
OH
Clamp Diode Voltage
Short Circuit Current
Output HIGH Voltage
V
CC
= Min., I
N
= –18mA
V
CC
= Max.
(3)
, V
O
= GND
V
CC
= 3V, V
IN
= V
LC
or V
HC
, I
OH
= –32µA
V
CC
= Min.
V
IN
= V
IH
or V
IL
V
OL
Output LOW Voltage
I
OH
= –300µA
I
OH
= –12mA MIL.
I
OH
= –15mA COM’L.
V
CC
= 3V, V
IN
= V
LC
or V
HC
, I
OL
= 300µA
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OL
= 300µA
I
OL
= 32mA MIL.
I
OL
= 48mA COM’L.
Parameter
Input HIGH Level
Input LOW Level
Input HIGH Current
Input LOW Current
Off State (High Impedance) V
CC
= Max.
Output Current
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max.
V
I
= V
CC
V
I
= 2.7V
V
I
=
0.5V
V
I
= GND
V
O
= V
CC
V
O
= 2.7V
V
O
=
0.5V
V
O
= GND
Min.
2.0
—
—
—
—
—
—
—
—
—
—
–60
V
HC
V
HC
2.4
2.4
—
—
—
—
Typ.
(2)
—
—
—
—
—
—
—
—
—
—
–0.7
–120
V
CC
V
CC
4.3
4.3
GND
GND
0.3
0.3
Max.
—
0.8
5
5
(4)
–5
(4)
–5
10
10
(4)
Unit
V
V
µA
µA
–10
(4)
–10
–1.2
—
—
—
—
—
V
LC
V
LC(4)
0.5
0.5
2620 tbl 05
V
mA
V
V
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. This parameter is guaranteed but not tested.
7.2
4
IDT29FCT520A/B/C
MULTILEVEL PIPELINE REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
V
LC
= 0.2V, V
HC
= V
CC
– 0.2V
Symbol
I
CC
∆I
CC
I
CCD
Parameter
Quiescent Power
Supply Current
Quiescent Power Supply
Current, TTL Input HIGH
Dynamic Power Supply Current
(4)
Test Conditions
(1)
V
CC
= Max.
V
IN
≥
V
HC
; V
IN
≤
V
LC
V
CC
= Max.
V
IN
= 3.4V
(3)
V
CC
= Max., Outputs Open
OE
= GND
One Input Toggling
50% Duty Cycle
V
CC
= Max., Outputs Open
f
CP
= 10MHz
50% Duty Cycle
V
IN
≥
V
HC
V
IN
≤
V
LC
Min.
—
—
—
Typ.
(2)
0.2
0.5
0.15
Max.
1.5
2.0
0.25
Unit
mA
mA
mA/
MHz
I
C
Total Power Supply Current
(6)
V
IN
≥
V
HC
V
IN
≤
V
LC
(FCT)
V
IN
= 3.4V
V
IN
= GND
V
IN
≥
V
HC
V
IN
≤
V
LC
(FCT)
V
IN
= 3.4V
V
IN
= GND
—
1.7
4.0
mA
OE
= GND
One Bit Toggling
at f
i
= 5MHz, 50% Duty Cycle
V
CC
= Max., Outputs Open
f
CP
= 10MHz
50% Duty Cycle
—
2.2
6.0
—
7.0
12.8
(5)
OE
= GND
Eight Bits Toggling
at f
i
= 5MHz, 50% Duty Cycle
—
9.2
21.8
(5)
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25°C ambient.
3. Per TTL driven input (V
IN
= 3.4V); all other inputs at V
CC
or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
5. Values for these conditions are examples of the I
CC
formula. These limits are guaranteed but not tested.
6. I
C
= I
QUIESCENT
+I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
∆I
CC
D
H
N
T
+ I
CCD
(f
CP
/2 + f
i
N
i
)
I
CC
= Quiescent Current
∆I
CC
= Power Supply Current for a TTL HIgh Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
i
= Input Frequency
N
i
= Number of Inputs at f
i
All currents are in milliamps and all frequencies are in megahertz.
2620 tbl 06
7.2
5
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