Features
•
Industry-standard Architecture
– Emulates Many 20-pin PALs
– Low-cost Easy-to-use Software Tools
High-speed Electrically-erasable Programmable Logic Devices
– 12 ns Maximum Pin-to-pin Delay
Low-power - 5 µA (Typ) Standby Current
CMOS and TTL Compatible Inputs and Outputs
– Input and I/O Pin Keeper Circuits
Advanced Flash Technology
– Reprogrammable
– 100% Tested
High-reliability CMOS Process
– 20 Year Data Retention
– 100 Erase/Write Cycles
– 2,000V ESD Protection
– 200 mA Latchup Immunity
Commercial and Industrial Temperature Ranges
Dual-in-line and Surface Mount Packages in Standard Pinouts
PCI-compliant
Green (Pb/Halide-free/RoHS Compliant) Package Options Available
•
•
•
•
•
High-
performance
EE PLD
ATF16V8CZ
•
•
•
•
1. Description
The ATF16V8CZ is a high-performance EECMOS programmable logic device that uti-
lizes Atmel’s proven electrically-erasable Flash memory technology. Speeds down to
12 ns and a 5 µA (Typ) edge-sensing power-down mode are offered. All speed ranges
are specified over the full 5V ±10% range for industrial temperature ranges; 5V ±5%
for commercial range 5-volt devices.
The ATF16V8CZ incorporates a superset of the generic architectures, which allows
direct replacement of the 16R8 family and most 20-pin combinatorial PLDs. Eight out-
puts are each allocated eight product terms. Three different modes of operation,
configured automatically with software, allow highly complex logic functions to be
realized.
The ATF16V8CZ can significantly reduce total system power, thereby enhancing sys-
tem reliability and reducing power supply costs. When all the inputs and internal
nodes are not switching, supply current drops to less than 5 µA typically. This auto-
matic power-down feature (or sleep mode) allows for power savings in slow clock
systems and asynchronous applications. Also, the pin-keeper circuits eliminate the
need for internal pull-up resistors along with their attendant power consumption.
0453H–PLD–7/05
ATF16V8CZ
Figure 2-3.
PLCC
I2
I1
I/CLK
VCC
I/O
3
2
1
20
19
I8
GND
I9/OE
I/O
I/O
9
10
11
12
13
I3
I4
I5
I6
I7
4
5
6
7
8
18
17
16
15
14
I/O
I/O
I/O
I/O
I/O
3. Absolute Maximum Ratings*
Temperature Under Bias.................................. -40°C to +85°C
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)
*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.
Maximum output pin voltage is V
CC
+ 0.75V DC,
which may overshoot to 7.0V for pulses of less
than 20 ns.
4. DC and AC Operating Conditions
Commercial
Operating Temperature (Ambient)
V
CC
Power Supply
0°C - 70°C
5V ±5%
Industrial
-40°C - 85°C
5V ±10%
4.1
I
IL
I
IH
I
CC1
I
CC(1)
I
OS
V
IL
V
IH
V
OL
DC Characteristics
Parameter
Input or I/O Low Leakage Current
Input or I/O High Leakage Current
Power Supply Current
Power Supply Current,
Standby Mode
Output Short Circuit Current
Input Low Voltage
Input High Voltage
Output Low Voltage
V
CC
= Min, All Outputs
I
OL
= -16 mA
Com, Ind.
Condition
0
≤
V
IN
≤
V
IL
(Max)
3.5
≤
V
IN
≤
V
CC
15 MHz, V
CC
= Max,
V
IN
= 0, V
CC
, Outputs Open
0 MHz, V
CC
= Max,
V
IN
= 0, V
CC
, Outputs Open
V
OUT
= 0.5V;
V
CC
= 5V; TA = 25°C
Min < V
CC
< Max
-0.5
2.0
Com
Ind.
Com.
Ind
5
5
-150
0.8
V
CC
+1
0.5
Min
Typ
Max
-10
10
95
105
Units
µA
µA
mA
mA
µA
µA
mA
V
V
V
Symbol
3
0453H–PLD–7/05
ATF16V8CZ
4.2
AC Waveforms
(1)
Note:
1. Timing measurement reference is 1.5V. Input AC driving levels are 0.0V and 3.0V, unless otherwise specified.
4.3
AC Characteristics
-12
-15
Max
12
6
2
10
0
12
6
55
62
83
3
2
2
1.5
12
15
12
12
3
2
2
1.5
8
2
12
0
16
8
45
50
62
15
15
15
15
Min
3
Max
15
8
10
Units
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
ns
ns
ns
ns
Parameter
Input or Feedback to Non-registered Output
Clock to Feedback
Clock to Output
Input or Feedback Setup Time
Input Hold Time
Clock Period
Clock Width
External Feedback 1/(t
S
+ t
CO
)
Min
3
Symbol
t
PD
t
CF
t
CO
t
S
t
H
t
P
t
W
f
MAX
Internal Feedback 1/(t
S
+ t
CF
)
No Feedback 1/(t
P
)
t
EA
t
ER
t
PZX
t
PXZ
Input to Output Enable – Product Term
Input to Output Disable – Product Term
OE pin to Output Enable
OE pin to Output Disable
5
0453H–PLD–7/05
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