EP20K100QC208-1 Altera, EP20K100QC208-1 Datasheet - Page 33
![APEX 20K](/photos/39/63/396366/544-208-pqfp_sml.jpg)
EP20K100QC208-1
Manufacturer Part Number
EP20K100QC208-1
Description
APEX 20K
Manufacturer
Altera
Datasheet
1.EP20K100QC208-1.pdf
(117 pages)
Specifications of EP20K100QC208-1
Family Name
APEX 20K
Number Of Usable Gates
100000
Number Of Logic Blocks/elements
4160
# Registers
26
# I/os (max)
159
Frequency (max)
250MHz
Process Technology
SRAM
Operating Supply Voltage (typ)
2.5V
Logic Cells
4160
Ram Bits
53248
Device System Gates
263000
Operating Supply Voltage (min)
2.375V
Operating Supply Voltage (max)
2.625V
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
208
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Altera Corporation
Figure 21. ESB in Input/Output Clock Mode
Notes to
(1)
(2)
All registers can be cleared asynchronously by ESB local interconnect signals, global signals, or the chip-wide reset.
APEX 20KE devices have four dedicated clocks.
Figure
wraddress[ ]
rdaddress[ ]
outclock
outclken
inclken
inclock
data[ ]
Dedicated Clocks
21:
wren
rden
(2)
2 or 4
Dedicated Inputs &
Global Signals
Input/Output Clock Mode
The input/output clock mode contains two clocks. One clock controls all
registers for inputs into the ESB: data input, WE, RE, read address, and
write address. The other clock controls the ESB data output registers. The
ESB also supports clock enable and asynchronous clear signals; these
signals also control the reading and writing of registers independently.
Input/output clock mode is commonly used for applications where the
reads and writes occur at the same system frequency, but require different
clock enable signals for the input and output registers.
the ESB in input/output clock mode.
Single-Port Mode
The APEX 20K ESB also supports a single-port mode, which is used when
simultaneous reads and writes are not required. See
4
Note (1)
D
ENA
D
ENA
D
ENA
APEX 20K Programmable Logic Device Family Data Sheet
Q
Q
Q
D
ENA
D
ENA
Generator
Pulse
Write
Q
Q
Data In
Read Address
Write Address
Read Enable
Write Enable
RAM/ROM
1,024 × 2
2,048 × 1
Data Out
128 × 16
256 × 8
512 × 4
Figure
D
ENA
Figure 21
Q
22.
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33