EPM7256AETI144-7N Altera, EPM7256AETI144-7N Datasheet - Page 11
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EPM7256AETI144-7N
Manufacturer Part Number
EPM7256AETI144-7N
Description
IC MAX 7000 CPLD 256 144-TQFP
Manufacturer
Altera
Series
MAX® 7000Ar
Datasheet
1.EPM7032AELC44-10N.pdf
(64 pages)
Specifications of EPM7256AETI144-7N
Programmable Type
In System Programmable
Delay Time Tpd(1) Max
7.5ns
Voltage Supply - Internal
3 V ~ 3.6 V
Number Of Logic Elements/blocks
16
Number Of Macrocells
256
Number Of Gates
5000
Number Of I /o
120
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
144-TQFP, 144-VQFP
Voltage
3.3V
Memory Type
EEPROM
Number Of Logic Elements/cells
16
Family Name
MAX 7000A
# Macrocells
256
Number Of Usable Gates
5000
Frequency (max)
166.67MHz
Propagation Delay Time
7.5ns
Number Of Logic Blocks/elements
16
# I/os (max)
120
Operating Supply Voltage (typ)
3.3V
In System Programmable
Yes
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
144
Package Type
TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Compliant
Other names
544-2063
EPM7256AETI144-7N
EPM7256AETI144-7N
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MAX 7000A Programmable Logic Device Data Sheet
Parallel Expanders
Parallel expanders are unused product terms that can be allocated to a
neighboring macrocell to implement fast, complex logic functions.
Parallel expanders allow up to 20 product terms to directly feed the
macrocell OR logic, with five product terms provided by the macrocell and
15 parallel expanders provided by neighboring macrocells in the LAB.
The compiler can allocate up to three sets of up to five parallel expanders
to the macrocells that require additional product terms. Each set of five
parallel expanders incurs a small, incremental timing delay (t
). For
PEXP
example, if a macrocell requires 14 product terms, the compiler uses the
five dedicated product terms within the macrocell and allocates two sets
of parallel expanders; the first set includes five product terms, and the
second set includes four product terms, increasing the total delay by
2 × t
.
PEXP
Two groups of eight macrocells within each LAB (e.g., macrocells 1
through 8 and 9 through 16) form two chains to lend or borrow parallel
expanders. A macrocell borrows parallel expanders from lower-
numbered macrocells. For example, macrocell 8 can borrow parallel
expanders from macrocell 7, from macrocells 7 and 6, or from macrocells
7, 6, and 5. Within each group of eight, the lowest-numbered macrocell
can only lend parallel expanders, and the highest-numbered macrocell
can only borrow them.
Figure 4
shows how parallel expanders can be
borrowed from a neighboring macrocell.
Altera Corporation
11