EPM7256AEFC256-10N Altera, EPM7256AEFC256-10N Datasheet - Page 11
![IC PLD EEPROM 256 MACROCELL FBGA-256](/photos/37/12/371228/544-256-fbga_sml.jpg)
EPM7256AEFC256-10N
Manufacturer Part Number
EPM7256AEFC256-10N
Description
IC PLD EEPROM 256 MACROCELL FBGA-256
Manufacturer
Altera
Series
MAX 7000AEr
Datasheet
1.EPM7032AELC44-10N.pdf
(64 pages)
Specifications of EPM7256AEFC256-10N
Cpld Type
EEPROM
No. Of Macrocells
256
No. Of I/o's
164
Propagation Delay
10ns
Global Clock Setup Time
3.9ns
Frequency
172.4MHz
Supply Voltage Range
3V To 3.6V
Family Name
MAX 7000A
Memory Type
EEPROM
# Macrocells
256
Number Of Usable Gates
5000
Frequency (max)
125MHz
Propagation Delay Time
10ns
Number Of Logic Blocks/elements
16
# I/os (max)
164
Operating Supply Voltage (typ)
3.3V
In System Programmable
Yes
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
256
Package Type
FBGA
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EPM7256AEFC256-10N
Manufacturer:
ALTERA/阿尔特拉
Quantity:
20 000
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