v3.1
RadTolerant FPGAs
Features
General Characteristics
•
•
Tested Total Ionizing Dose (TID) Survivability Level
No Single Event Latch-Up Below a Minimum LET
(Linear Energy Transfer) Threshold of 80 MeV-cm
2
/mg
for All RT (RadTolerant) Devices
Packages: 84-Pin, 132-Pin, 172-Pin, 196-Pin, and
256-Pin Ceramic Quad Flat Pack
Offered as Class B and E-Flow (Actel Space Level
Flow)
QML Certified Devices
100% Military Temperature Tested (–55°C to
+125°C)
•
•
•
Up to 60 MHz System Performance
Up to 228 User I/Os
Up to Four Fast, Low-Skew Clock Networks
•
•
•
•
Easy Logic Integration
•
•
•
•
•
•
•
Nonvolatile, User Programmable
Pin-Compatible Commercial Devices Available for
Prototyping
Highly Predictable Performance with 100%
Automatic Place-and-Route
100% Resource Utilization with 100% Pin-Locking
Secure Programming Technology Prevents Reverse
Engineering and Design Theft
Permanently Programmed for Operation on
Power-Up
Unique In-System Diagnostic and Verification
Capability with Silicon Explorer
High Density and Performance
•
•
•
4,000 to 20,000 Logic Equivalent Gates
2,000 to 10,000 ASIC Equivalent Gates
Up to 85 MHz Internal Performance
Product Family Profile
Table 1 •
Device
Capacity
System Gates
Logic Gates
ASIC Equivalent Gates
PLD Equivalent Gates
TTL Equivalent Package
20-Pin PAL Equivalent Packages
Logic Modules
S-Modules
C-Modules
User I/Os (Maximum)
Performance
System Speed (Maximum)
Packages (by Pin Count)
CQFP
RadTolerant Family
RT1020
6,000
4,000
2,000
5,000
50
20
547
N/A
547
69
20 MHz
84
RT1280A
24,000
16,000
8.000
20,000
200
80
1,232
624
608
140
40 MHz
172
RT1425A
7,500
5,000
2,500
6,250
60
25
310
160
150
100
60 MHz
132
RT1460A
18,000
12,000
6,000
15.000
150
60
848
432
416
168
60 MHz
196
RT14100A
30,000
20,000
10,000
25,000
250
100
1,377
697
680
228
60 MHz
256
October 2004
© 2004 Actel Corporation
i
See Actel’s website for the latest version of the datasheet
RadTolerant FPGAs
Ordering Information
RT1280A -
CQ
172
E
Application (Temperature Range)
C = Commercial (0 to +70˚C)
M = Military (-55 to +125˚C)
B = MIL-STD-883 Class B
E = Extended Flow (Space Level)
Package Lead Count
Package Type
CQ = Ceramic Quad Flat Pack (CQFP)
Speed Grade
Std = Standard Speed
-1 = Approximately 15% Faster than Standard
Part Number
RT1020
= 4,000 Gates—RadTolerant ACT 1
RT1280A = 16,000 Gates—RadTolerant ACT 2
RT1425A = 5,000 Gates—RadTolerant ACT 3
RT1460A = 12,000 Gates—RadTolerant ACT 3
RT14100A = 20,000 Gates—RadTolerant ACT 3
A1020B = 4,000 Gates—ACT 1
A1280A = 16,000 Gates—ACT 2
A1425A = 5,000 Gates—ACT 3
A1460A = 12,000 Gates—ACT 3
A14100A = 20,000 Gates—ACT 3
Device Resources
FPGA Device Type
RT1020/A1020B
RT1280A/A1280A
RT1425A/A1425A
RT1460A/A1460A
RT14100A/A14100A
Logic Modules
547
1,232
310
848
1,377
Gate Array
Equivalent
Gates
2,000
8,000
2,500
6,000
10,000
User I/Os
CQFP
84-Pin
69
–
–
–
–
CQFP
132-Pin
–
–
100
–
–
CQFP
172-Pin
–
140
–
–
–
CQFP
196-Pin
–
–
–
168
–
CQFP
256-Pin
–
–
–
–
228
Note:
Package Definition: CQFP = Ceramic Quad Flat Pack
Contact your Actel sales representative for product availability.
ii
v3.1
RadTolerant FPGAs
Product Plan
Speed Grade
Std
ACT 1
RT1020 Device
84-Pin Ceramic Quad Flat Pack (CQFP)
A1020B Device (Prototyping Use)
84-Pin Ceramic Quad Flat Pack (CQFP)
ACT 2
RT1280A Device
172-Pin Ceramic Quad Flat Pack (CQFP)
A1280A Device (Prototyping Use)
172-Pin Ceramic Quad Flat Pack (CQFP)
ACT 3
RT1425A Device
132-Pin Ceramic Quad Flat Pack (CQFP)
A1425A Device (Prototyping Use)
132-Pin Ceramic Quad Flat Pack (CQFP)
RT1460A Device
196-Pin Ceramic Quad Flat Pack (CQFP)
A1460A Device (Prototyping Use)
196-Pin Ceramic Quad Flat Pack (CQFP)
RT14100A Device
256-Pin Ceramic Quad Flat Pack (CQFP)
A14100A Device (Prototyping Use)
256-Pin Ceramic Quad Flat Pack (CQFP)
✓
✓
✓
✓
✓
–
Note:
Contact your Actel sales representative for product availability. Availability:
✔
= Available, – Symbol = Not Planned
* Speed Grade: –1 = Approx. 15% faster than Standard
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
–
✓
✓
–
–
✓
✓
✓
✓
✓
✓
✓
–
✓
–
–
–
✓
✓
–1*
Commercial
Application
Military
MIL-STD-883
Extended
Flow
v3.1
iii
RadTolerant FPGAs
Table of Contents
RadTolerant FPGAs
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Radiation Survivability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
QML Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Development Tool Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
RadTolerant Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Logic Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
The RT1020 Logic Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Package Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Parameter Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Sequential Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
RT1020, A1020B Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
RT1280A, A1280A Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
RT1425A, A1425A Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
RT1460A, A1460A Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
RT14100A, A14100A Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
Package Pin Assignments
84-Pin CQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
132-Pin CQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
172-Pin CQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
196-Pin CQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
256-Pin CQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Datasheet Information
List of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Datasheet Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
iv
v3.1
RadTolerant FPGAs
RadTolerant FPGAs
General Description
Actel builds the most reliable field programmable gate
arrays (FPGAs) in the industry, with overall antifuse
reliability ratings of less than 10 failures-in-time (FITs),
corresponding to a useful life of more than 40 years.
Actel FPGAs are production-proven, with more than five
million devices shipped and more than one trillion
antifuses manufactured. Actel devices are fully tested
prior to shipment, with an outgoing defect level of only
122 ppm (further reliability data is available in the
Actel
Device Reliability Report).
Additionally, the programmable architecture of these
devices offers high performance, design flexibility, and
fast and inexpensive prototyping—all without the
expense of test vectors, NRE charges, long lead times,
and schedule and cost penalties for design refinements.
These devices also have fully pin- and function-
compatible commercially-equivalent devices for easy and
inexpensive prototyping. The A1425A-CQ132C is used for
the RT1425A, the A1460A-CQ196C is used for the
RT1460A, and the A14100A-CQ256C is used for the
RT14100A.
Radiation Survivability
Total dose results are summarized in two ways. The first
method summarizes by the maximum total dose level
that is reached when the parts fail to meet a device
specification but remain functional. For Actel FPGAs, the
parameter that exceeds the specification first is the
standby supply current (I
CC
). The second method
summarizes by the maximum total dose that is reached
prior to the functional failure of the device.
The Actel RT devices have varying total-dose radiation
survivability. The ability of these devices to survive
radiation effects is both device- and lot-dependent. The
user must evaluate and determine the applicability of
these devices for specific design and environmental
requirements.
Typical results for the RT1020 device are ~100krads (Si)
for standby I
CC
and >100krads for functional failure. The
RT1280A device has results from 4 to 10krads (Si) for
standby I
CC
, and 7 to 18krads for functional failure.
Typical results for ACT 3 devices are 10 to 28krads for I
CC
,
and 20 to 77krads for functional failure.
Actel will provide total dose radiation testing along with
the test data on each pedigreed lot that is available for
sale. These reports are available on our website, or you
can contact your local sales representative to receive a
copy. A listing of available lots and devices is also
provided. These results are provided only for reference
and for customer information.
For a radiation performance summary, see
Radiation
Performance of Actel Products
on the Actel Website. This
summary also shows single event upset (SEU) and single
event latch-up (SEL) testing that has been performed on
Actel FPGAs.
Device Description
The RT1020 device contains the same architecture as the
A1020, A1020A, and A1020B devices. The architecture, a
combinatorial logic module, is a logic structure with 8 inputs
and 1 output. The logic itself is comprised of a 4-input MUX,
as described in
Figure 1-3 on page 1-4.
In addition, since
the RT1020 device contains the same number of gates and
I/Os and has the same operating voltage as its commercial
equivalent (A1020B), an inexpensive commercial grade
A1020B-CQ84 device can be used during the prototype
phase, and replaced by the RT1020 in the flight units.
The RT1280A device uses the A1280A die from the ACT 2
family of FPGAs. It utilizes a two-module architecture,
consisting of combinatorial modules (C-modules) and
sequential modules (S-modules) optimized for both
combinatorial and sequential designs. Based on Actel’s
patented channeled array architecture, the RT1280A has
8,000 ASIC-equivalent gates and 140 user I/Os.
The RT1280A device is fully pin- and function-compatible
with the commercially-equivalent A1280A-CQ172C device
for easy, inexpensive prototyping.
The RT1425A, RT1460A and RT14100A devices use the
A1425A, A1460A and A14100A dies, respectively. These
devices are derived from the ACT 3 family of FPGAs,
which also utilizes the two-module channeled array
architecture, and offers faster performance than the
RT1280A.
v3.1
1-1
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