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Plastic Device Resources
User I/Os
PLCC PQFP, RQFP VQFP TQFP BGA
Device Series Logic Modules Gates 84-pin 208-pin 100-pin 176-pin 313-pin
A14V15A 200 1500 70 — 80 — —
A14V25A 310 2500 70 — 83 — —
A14V40A 564 4000 70 — 83 140 —
A14V60A 848 6000 — 167 — 151 —
A14V100A 1377 10000 — 175 — — 228
Pin Description
CLKA Clock A (Input)
TTL Clock input for clock distribution networks. The Clock
input is buffered prior to clocking the logic modules. This pin
can also be used as an I/O.
CLKB Clock B (Input)
TTL Clock input for clock distribution networks. The Clock
input is buffered prior to clocking the logic modules. This pin
can also be used as an I/O.
DCLK Diagnostic Clock (Input)
TTL Clock input for diagnostic probe and device
programming. DCLK is active when the MODE pin is HIGH.
This pin functions as an I/O when the MODE pin is LOW.
GND Ground
LOW supply voltage.
HCLK Dedicated (Hard-wired)
Array Clock (Input)
TTL Clock input for sequential modules. This input is
directly wired to each S-Module and offers clock speeds
independent of the number of S-Modules being driven. This
pin can also be used as an I/O.
I/O Input/Output (Input, Output)
The I/O pin functions as an input, output, three-state, or
bidirectional buffer. Input and output levels are compatible
with standard TTL and CMOS specifications. Unused I/O
pins are automatically driven LOW by the ALS software.
IOCLK Dedicated (Hard-wired)
I/O Clock (Input)
TTL Clock input for I/O modules. This input is directly wired
to each I/O module and offers clock speeds independent of
the number of I/O modules being driven. This pin can also be
used as an I/O.
IOPCL Dedicated (Hard-wired)
I/O Preset/Clear (Input)
TTL input for I/O preset or clear. This global input is directly
wired to the preset and clear inputs of all I/O registers. This
pin functions as an I/O when no I/O preset or clear macros are
used.
MODE Mode (Input)
The MODE pin controls the use of diagnostic pins (DCLK,
PRA, PRB, SDI). When the MODE pin is HIGH, the special
functions are active. When the MODE pin is LOW, the pins
function as I/Os.
NC No Connection
This pin is not connected to circuitry within the device.
PRA Probe A (Output)
The Probe A pin is used to output data from any user-defined
design node within the device. This independent diagnostic
pin can be used in conjunction with the Probe B pin to allow
real-time diagnostic output of any signal path within the
device. The Probe A pin can be used as a user-defined I/O
when debugging has been completed. The pin’s probe
capabilities can be permanently disabled to protect
programmed design confidentiality. PRA is accessible when
the MODE pin is HIGH. This pin functions as an I/O when
the MODE pin is LOW.
PRB Probe B (Output)
The Probe B pin is used to output data from any user-defined
design node within the device. This independent diagnostic
pin can be used in conjunction with the Probe A pin to allow
real-time diagnostic output of any signal path within the
device. The Probe B pin can be used as a user-defined I/O
when debugging has been completed. The pin’s probe
capabilities can be permanently disabled to protect
programmed design confidentiality. PRB is accessible when
the MODE pin is HIGH. This pin functions as an I/O when
the MODE pin is LOW.
SDI Serial Data Input (Input)
Serial data input for diagnostic probe and device
programming. SDI is active when the MODE pin is HIGH.
This pin functions as an I/O when the MODE pin is LOW.
V
CC
3.3 V Supply Voltage
HIGH supply voltage.
V
KS
Programming Voltage
Supply voltage used for device programming. This pin must
be connected to GND during normal operation.