Rainbow Electronics ATF750CL - Manual (Page 2)

ATF750C(L)
2
guarantee fast in-system performance. The ATF750C(L) is
a high-performance CMOS (electrically-erasable) complex
programmable logic device (CPLD) that utilizes Atmel’s
proven electrically-erasable technology.
Each of the ATF750C(L)’s 22 logic pins can be used as an
input. Ten of these can be used as inputs, outputs or bi-
directional I/O pins. Each flip-flop is individually config-
urable as either D- or T-type. Each flip-flop output is fed
back into the array independently. This allows burying of all
the sum terms and flip-flops.
There are 171 total product terms available. There are two
sum terms per output, providing added flexibility. A variable
format is used to assign between four to eight product
terms per sum term. Much more logic can be replaced by
this device than by any other 24-pin PLD. With 20 sum
terms and flip-flops, complex state machines are easily
implemented with logic to spare.
Product terms provide individual clocks and asynchronous
resets for each flip-flop. Each flip-flop may also be individu-
ally configured to have direct input pin controlled clocking.
Each output has its own enable product term. One product
term provides a common synchronous preset for all flip-
flops. Register preload functions are provided to simplify
testing. All registers automatically reset upon power-up.
The ATF750C(L) is a low-power device with speeds
as fast as 15 ns. The ATF750C(L) provides the optimum
low-power CPLD solution. This device significantly
reduces total system power, thereby allowing battery-
powered operations.
DC and AC Operating Conditions
All members of the family are specified to operate in either one of two voltage ranges. Parameters are specified as noted to
be either 2.7V to 3.6V, 5V ± 5% or 5V ± 10%.
Absolute Maximum Ratings*
Temperature Under Bias................................ -55°C to +125°C *NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Note: 1. Minimum voltage is -0.6V DC, which may under-
shoot to -2.0V for pulses of less than 20 ns. Max-
imum output pin voltage is V
CC
+ 0.75V DC,
which may overshoot to 7.0V for pulses of less
than 20 ns.
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin with
Respect to Ground .........................................-2.0V to +7.0V
(1)
Voltage on Input Pins
with Respect to Ground
During Programming.....................................-2.0V to +14.0V
(1)
Programming Voltage with
Respect to Ground .......................................-2.0V to +14.0V
(1)
5V Operation
Commercial
-7.5, -10, -15 Industrial
-10, -15
Operating Temperature (Ambient) 0°C - 70°C -40°C - +85°C
V
CC
Power Supply 5V ± =5%
5V ± =10%