Rainbow Electronics ATF16V8BQL User Manual

Features

Industry-standard Architecture
– Emulates Many 20-pin PALs – Low-cost Easy-to-use Software Tools
High-speed Electrically-erasable Programmable Logic Devices
– 7.5 ns Maximum Pin-to-pin Delay
Device ICC, Standby ICC, Active
ATF16V8B 50 mA 55 mA
ATF16V8BQ 35 mA 40 mA
ATF16V8BQL 5 mA 20 mA
CMOS and TTL Compatible Inputs and Outputs
– Input and I/O Pull-up Resistors
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
®
High­performance EE PLD
ATF16V8B ATF16V8BQ ATF16V8BQL

Block Diagram

Pin Configurations

All Pinouts Top View
Pin Name Function
CLK Clock
I Logic Inputs
I/O Bi-directional Buffers
OE
VCC +5V Supply
Output Enable
I/CLK
GND
DIP/SOIC
1 2
I1
3
I2
4
I3
5
I4
6
I5
7
I6
8
I7
9
I8
10
I/CLK
GND
20 19 18 17 16 15 14 13 12 11
TSSOP
1 2
I1
3
I2
4
I3
5
I4
6
I5
7
I6
8
I7
9
I8
10
VCC
20
I/O
19
I/O
18
I/O
17
I/O
16
I/O
15
I/O
14
I/O
13
I/O
12
I9/OE
11
PLCC
VCC I/O I/O I/O I/O I/O I/O I/O I/O I9/OE
I3 I4 I5 I6 I7
I2I1I/CLK
321
4 5 6 7 8
910111213
I8
GND
I9/OE
VCC
20
I/O
I/O
19 18
I/O
17
I/O
16
I/O
15
I/O
14
I/O
I/O
Rev. 0364I–04/01
1

Description

The ATF16V8B is a high-performance CMOS (electrically­erasable) programmable logic device (PLD) that utilizes Atmels proven electrically-erasable Flash memory technol­ogy. Speeds down to 7.5 ns are offered. All speed ranges are specified over the full 5V temperature ranges, and 5V
± 10% range for industrial
± 5% for commercial tempera-
ture ranges.
Several low-power options allow selection of the best solu­tion for various types of power-limited applications. Each of

Absolute Maximum Ratings*

Temperature Under Bias.................................-55oC to +125oC
Storage Temperature......................................-65
Voltage on Any Pin with
Respect to Ground .......................................-2.0 V to +7.0 V
Voltage on Input Pins with Respect to Ground
During Programming...................................-2.0 V to +14.0 V
Programming Voltage with
Respect to Ground .....................................-2.0 V to +14.0 V
o
C to +150oC
(1)
(1)
(1)
these options significantly reduces total system power and enhances system reliability.
The ATF16V8Bs incorporate a superset of the generic architectures, which allows direct replacement of the 16R8 family and most 20-pin combinatorial PLDs. Eight outputs are each allocated eight product terms. Three different modes of operation, configured automatically with soft­ware, allow highly complex logic functions to be realized.
*NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings may cause permanent dam­age 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 which may overshoot to 7.0V for pulses of less than 20 ns.
+ 0.75V DC,
CC

DC and AC Operating Conditions

Commercial Industrial
Operating Temperature (Ambient) 0
VCC Power Supply 5V=± 5% 5V=± 10%
o
C - 70oC-40
o
C - 85oC
2
ATF16V8B(QL)
ATF16V8B(QL)

DC Characteristics

Symbol Parameter Condition Min Typ Max Units
I
IL
I
IH
Input or I/O Low Leakage Current
Input or I/O High Leakage Current
0 =VIN =VIL(Max) -35 -100 µA
3.5 =V
IN
=V
CC
10 µA
Com. 55 85 mA
B-7, -10
Ind. 55 95 mA
B-15 Com. 50 75 mA
B-15 Ind. 50 80 mA
V
= Max,
I
CC
Power Supp ly Current, Standby
CC
= Max,
V
IN
Outputs Open
B-25 Com. 50 75 mA
B-25 Ind. 50 80 mA
BQ-10 Com. 35 55 mA
BQL-15 Com. 5 10 mA
BQL-15 Ind. 5 15 mA
BQL-25 Com. 5 10 mA
BQL-25 Ind. 5 15 mA
Com. 60 90 mA
B-7, -10
Ind. 60 100 mA
B-15 Com. 55 85 mA
B-15 Ind. 55 95 mA
B-25 Com. 55 85 mA
B-25 Ind. 55 95 mA
BQ-10 Com. 40 55 mA
I
CC2
Clocked Power Supply Current
= Max,
V
CC
Outputs Open, f=15 MHz
BQL-15 Com. 20 35 mA
BQL-15 Ind. 20 40 mA
BQL-25 Com. 20 35 mA
BQL-25 Ind. 20 40 mA
(1)
I
OS
V
IL
V
IH
V
OL
V
OH
Output Short Circuit Current
= 0.5 V -130 mA
V
OUT
Input Low Voltage -0.5 0.8 V
Input High Voltage 2.0 VCC+0.75 V
Output High Voltage
Output High Voltage
V
IN=VIH
V
CC
V
IN=VIH
V
CC
or VIL,
=Min
or VIL,
=Min
= -24 mA
I
OL
Com., Ind.
= -4.0 mA 2.4 V
I
OH
0.5 V
Notes: 1. Not more than one output at a time should be shorted. Duration of short circuit test should not exceed 30 sec.
2. Shaded parts are obsolete with a last time buy date of 19 August 1999.
3
AC Waveforms
(1)
Note: 1. Timing measurement reference is 1.5V. Input AC driving levels are 0.0V 3.0V, unless otherwise specified.
AC Characteristics
(1)
-10 -15
Symbol Parameter
t
PD
t
CF
t
CO
t
S
t
H
t
P
t
W
Input or Feedback to Non-Registered Output
Clock to Feedback 6 8 10 ns
Clock to Output 2 7 2 10 2 12 ns
Input or Feedback Setup Time
Hold Time 0 0 0 ns
Clock Period 12 16 24 ns
Clock Width 6 8 12 ns
8 outputs switching 3 10 3 15
1 output switching ns
7.5 12
External Feedback 1/(tS+tCO)684537 MHz
f
MAX
t
EA
t
ER
t
PZX
t
PXZ
Internal Feedback 1/(tS + tCF)745040 MHz
No Feedback 1/(t
Input to Output Enable Product Term
Input to Output Disable Product Term
)836241 MHz
P
310315
210215
OE pin to Output Enable 2 10 2 15 2 20 ns
OE pin to Output Disable 1.5 10 1.5 15 1.5 20 ns
Note: 1. See ordering information for valid part numbers and speed grades.
2. Shaded parts are obsolete with a last time buy date of 19 August 1999.
-25
Min Max
UnitsMin Max Min Max
3 25 ns
15 ns
3 20 ns
2 20 ns
4
ATF16V8B(QL)
ATF16V8B(QL)

Input Test Waveforms and Measurement Levels:

Output Test Loads:

Commercial
tR, tF < 5 ns (10% to 90%)

Pin Capacitance

f = 1 MHz, T = 25°C
C
IN
C
OUT
Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
(1)
Typ Max Units Conditions
58 pF V
68 pF V

Power-up Reset

The registers in the ATF16V8Bs are designed to reset dur-
.
crossing
CC
Parameter Description Typ Max Units
t
PR
V
RST
Power-up Reset Time
Power-up Reset Voltage

Security Fuse Usage

A single fuse is provided to prevent unauthorized copying of the ATF16V8B fuse patterns. Once programmed, fuse verify and preload are inhibited. However, the 64-bit User Signature remains accessible.
The security fuse should be programmed last, as its effect is immediate.
ing power-up. At a point delayed slightly from V
, all registers will be reset to the low state. As a result,
V
RST
the registered output state will always be high on power-up.
This feature is critical for state machine initialization. How­ever, due to the asynchronous nature of reset and the uncertainty of how V
actually rises in the system, the fol-
CC
lowing conditions are required:
1. The V
rise must be monotonic,
CC
2. After reset occurs, all input and feedback setup times must be met before driving the clock pin high, and
3. The clock must remain stable during t
PR

Preload of Registered Outputs

The ATF16V8Bs registers are provided with circuitry to allow loading of each register with either a high or a low. This feature will simplify testing since any state can be forced into the registers to control test sequencing. A JEDEC file with preload is generated when a source file with vectors is compiled. Once downloaded, the JEDEC file preload sequence will be done automatically by most of the approved programmers after the programming.
= 0 V
IN
= 0 V
OUT
600 1,000 ns
3.8 4.5 V
5

Electronic Signature Word

There are 64 bits of programmable memory that are always available to the user, even if the device is secured. These bits can be used for user-specific data.

Programming/Erasing

Programming/erasing is performed using standard PLD programmers. See CMOS PLD Programming Hardware and Software Support for information on software/programming.

Input and I/O Pull-ups

All ATF16V8B family members have internal input and I/O pull-up resistors. Therefore, whenever inputs or I/Os are not being driven externally, they will float to V ensures that all logic array inputs are at known states. These are relatively weak active pull-ups that can easily be overdriven by TTL-compatible drivers (see input and I/O diagrams below).
CC
. This

Input Diagram

Compiler Mode Selection

I/O Diagram

Functional Logic Diagram Description

The Logic Option and Functional Diagrams describe the ATF16V8B architecture. Eight configurable macrocells can be configured as a registered output, combinatorial I/O, combinatorial output, or dedicated input.
The ATF16V8B can be configured in one of three different modes. Each mode makes the ATF16V8B look like a differ­ent device. Most PLD compilers can choose the right mode automatically. The user can also force the selection by supplying the compiler with a mode selection. The deter­mining factors would be the usage of register versus combinatorial outputs and dedicated outputs versus outputs with output enable control.
The ATF16V8B universal architecture can be programmed to emulate many 20-pin PAL devices. These architectural subsets can be found in each of the configuration modes described in the following pages. The user can download the listed subset device JEDEC programming file to the PLD programmer, and the ATF16V8B can be configured to act like the chosen device. Check with your programmer manufacturer for this capability.
Unused product terms are automatically disabled by the compiler to decrease power consumption. A security fuse, when programmed, protects the content of the ATF16V8B. Eight bytes (64 fuses) of User Signature are accessible to the user for purposes such as storing project name, part number, revision, or date. The User Signature is accessible regardless of the state of the security fuse.
Registered Complex Simple Auto Select
ABEL, Atmel-ABEL P16V8R P16V8C P16V8AS P16V8
CUPL G16V8MS G16V8MA G16V8AS G16V8
LOG/iC GAL16V8_R
OrCAD-PLD Registered”“Complex”“Simple GAL16V8A
PLDesigner P16V8R P16V8C P16V8C P16V8A
Tango-PLD G16V8R G16V8C G16V8AS G16V8
Note: 1. Only applicable for version 3.4 or lower.
6
ATF16V8B(QL)
(1)
GAL16V8_C7
(1)
GAL16V8_C8
(1)
GAL16V8
ATF16V8B(QL)

Macrocell Configuration

Software compilers support the three different OMC modes as different device types. Most compilers have the ability to automatically select the device type, generally based on the register usage and output enable (OE) usage. Register usage on the device forces the software to choose the registered mode. All combinatorial outputs with OE controlled by the product term will force the software to choose the complex mode. The software will choose the simple mode only when all outputs are dedicated combina­torial without OE control. The different device types can be used to override the automatic device selection by the soft­ware. For further details, refer to the compiler software manuals.
When using compiler software to configure the device, the user must pay special attention to the following restrictions in each mode.
In registered mode pin 1 and pin 11 are permanently configured as clock and output enable, respectively. These pins cannot be configured as dedicated inputs in the registered mode.
In complex mode pin 1 and pin 11 become dedicated inputs and use the feedback paths of pin 19 and pin 12 respectively. Because of this feedback path usage, pin 19 and pin 12 do not have the feedback option in this mode.
In simple mode all feedback paths of the output pins are routed via the adjacent pins. In doing so, the two inner most pins (pins 15 and 16) will not have the feedback option as these pins are always configured as dedicated combinato­rial output.

ATF16V8B Registered Mode

PAL Device Emulation/PAL Replacement. The registered
mode is used if one or more registers are required. Each macrocell can be configured as either a registered or com­binatorial output or I/O, or as an input. For a registered output or I/O, the output is enabled by the OE register is clocked by the CLK pin. Eight product terms are allocated to the sum term. For a combinatorial output or I/O, the output enable is controlled by a product term, and seven product terms are allocated to the sum term. When the macrocell is configured as an input, the output enable is permanently disabled.
Any register usage will make the compiler select this mode. The following registered devices can be emulated using this mode:
16R8 16RP8
16R6 16RP6
16R4 16RP4
pin, and the
Registered Configuration for Registered Mode
Notes: 1. Pin 1 controls common CLK for the registered out-
puts. Pin 11 controls common OE outputs. Pin 1 and Pin 11 are permanently configured as CLK and OE
2. The development software configures all the archi­tecture control bits and checks for proper pin usage automatically.
(1)(2)
for the registered
.
Combinatorial Configuration for Registered Mode
Notes: 1. Pin 1 and Pin 11 are permanently configured as CLK
and OE
2. The development software configures all the archi­tecture control bits and checks for proper pin usage automatically.
.
(1)(2)
7

Registered Mode Logic Diagram

8
ATF16V8B(QL)

ATF16V8B Complex Mode

ATF16V8B(QL)
PAL Device Emulation/PAL Replacement. In the complex
mode, combinatorial output and I/O functions are possible. Pins 1 and 11 are regular inputs to the array. Pins 13 through 18 have pin feedback paths back to the AND-array, which makes full I/O capability possible. Pins 12 and 19 (outermost macrocells) are outputs only. They do not have input capability. In this mode, each macrocell has seven product terms going to the sum term and one product term enabling the output.

Complex Mode Option

ATF16V8B Simple Mode

PAL Device Emulation/PAL Replacement. In the Simple
Mode, 8 product terms are allocated to the sum term. Pins 15 and 16 (center macrocells) are permanently configured as combinatorial outputs. Other macrocells can be either inputs or combinatorial outputs with pin feedback to the AND-array. Pins 1 and 11 are regular inputs.
Combinatorial applications with an OE requirement will make the compiler select this mode. The following devices can be emulated using this mode:
16L8
16H8
16P8
The compiler selects this mode when all outputs are combi­natorial without OE control. The following simple PALs can be emulated using this mode:
10L8 10H8 10P8
12L6 12H6 12P6
14L4 14H4 14P4
16L2 16H2 16P2

Simple Mode Option

* - Pins 15 and 16 are always enabled.
9

Complex Mode Logic Diagram

10
ATF16V8B(QL)

Simple Mode Logic Diagram

ATF16V8B(QL)
11
SUPPLY CURRENT vs. INPUT FREQUENCY
ATF16V8B/BQ (VCC = 5V, TA = 25C)
75
I
50
C C
m
25
A
ATF16V8B
ATF16V8BQ
SUPPLY CURRENT vs. INPUT FREQUENCY
ATF16V8BL/BQL (VCC = 5V, TA = 25C)
75
I
50
C C
m
25
A
ATF16V8B
ATF16V8BQL
0
0 25 50 75 100
FREQUENCY (MHz)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
65
55
I C C
45
m A
35
25
4.50 4.75 5.00 5.25 5.50
ATF16V8B/BQ (TA = 25C)
ATF16V8B
ATF16V8BQ
SUPPLY VOLTAGE (V)
0
0 20406080100
FREQUENCY (MHz)
12
OUTPUT SOURCE CURRENT
vs. SUPPLY VOLTAGE (TA = 25C)
-10
-12
I
-14
O
-16
H
-18
m
-20
A
-22
-24
4.5 4.7 4.9 5.1 5.3 5.5
SUPPLY VOLTAGE (V)
ATF16V8B(QL)
ATF16V8B(QL)
NORMALIZED TCO
vs. SUPPLY VOLTAGE(TA=25°C)
1.3
N
1.15
O
R
M
1
T
0.85
C
O
0.7
4.50 4.75 5.00 5.25 5.50
SUPPLY VOLTAGE (V)
ATF16V8B/BQ
ATF16V8BQL
NORMALIZED TPD
vs. SUPPLY VOLTAGE (TA=25°C)
1.3
N
1.15
O R M
1
T
0.85
P D
0.7
4.50 4.75 5.00 5.25 5.50
SUPPLY VOLTAGE (V)
ATF16V8B/BQ
ATF16V8BQL
13
14
ATF16V8B(QL)
ATF16V8B(QL)
15

ATF16V8B Ordering Information

t
PD
(ns)
10 7.5 7 ATF16V8B-10JC
15 12 10 ATF16V8B-15JC
25 15 12 ATF16V8B-25JC
Note: 1. Shaded parts are obsolete with a last time buy date of 19 August 1999.
t
S
(ns)
t
CO
(ns) Ordering Code Package Operation Range
20J ATF16V8B-10PC ATF16V8B-10SC ATF16V8B-10XC
ATF16V8B-10JI ATF16V8B-10PI ATF16V8B-10SI ATF16V8B-10XI
ATF16V8B-15PC ATF16V8B-15SC ATF16V8B-15XC
ATF16V8B-15JI ATF16V8B-15PI ATF16V8B-15SI ATF16V8B-15XI
ATF16V8B-25PC ATF16V8B-25SC ATF16V8B-25XC
ATF16V8B-25JI ATF16V8B-25PI ATF16V8B-25SI ATF16V8B-25XI
20P3
20S
20X
20J
20P3
20S
20X
20J
20P3
20S
20X
20J
20P3
20S
20X
20J
20P3
20S
20X
20J
20P3
20S
20X
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)

Using “C” Product for Industrial

To use commercial product for Industrial temperature ranges, down-grade one speed grade from the “I” to the “C” device (7 ns “C” = 10 ns “I”) and de-rate power by 30%.
Package Type
20J 20-lead, Plastic J-leaded Chip Carrier (PLCC)
20P3 20-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
20S 20-lead, 0.300" Wide, Plastic Gull-wing Small Outline (SOIC)
20X 20-lead, 4.4 mm Wide, Plastic Thin Shrink Small Outline (TSSOP)
16
ATF16V8B(QL)

ATF16V8BQ and ATF16V8BQL Ordering Information

ATF16V8B(QL)
t
PD
(ns)
10 7.5 7 ATF16V8BQ-10JC
15 12 10 ATF16V8BQL-15JC
25 15 12 ATF16V8BQL-25JC
Note: 1. Shaded parts are obsolete with a last time buy date of 11 August 1999.
t
S
(ns)
t
CO
(ns) Ordering Code Package Operation Range
ATF16V8BQ-10PC ATF16V8BQ-10SC ATF16V8BQ-10XC
ATF16V8BQL-15PC ATF16V8BQL-15SC ATF16V8BQL-15XC
ATF16V8BQL-15JI ATF16V8BQL-15PI ATF16V8BQL-15SI ATF16V8BQL-15XI
ATF16V8BQL-25PC ATF16V8BQL-25SC ATF16V8BQL-25XC
ATF16V8BQL-25JI ATF16V8BQL-25PI ATF16V8BQL-25SI ATF16V8BQL-25XI
20J 20P3 20S 20X
20J 20P3 20S 20X
20J 20P3 20S 20X
20J 20P3 20S 20X
20J 20P3 20S 20X
Commercial
(0°C to 70°C)
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)

Using “C” Product for Industrial

To use commercial product for Industrial temperature ranges, down-grade one speed grade from the “I” to the “C” device (7 ns “C” = 10 ns “I”) and de-rate power by 30%.
Package Type
20J 20-lead, Plastic J-leaded Chip Carrier (PLCC)
20P3 20-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
20S 20-lead, 0.300" Wide, Plastic Gull-Wing Small Outline (SOIC)
20X 20-lead, 4.4 mm Wide, Plastic Thin Shrink Small Outline (TSSOP)
17
Packaging Information
20J, 20-lead, Plastic J-Leaded Chip Carrier (PLCC)
Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-018 AA
20P3, 20-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP) Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-001 AD
1.060(26.9)
.210(5.33)
SEATING
PLANE
.150(3.81) .115(2.92)
MAX
.110(2.79) .090(2.29)
.014(.356) .008(.203)
.980(24.9)
.900(22.86) REF
PIN
1
.070(1.78) .045(1.13)
.325(8.26) .300(7.62)
0
REF
15
.430(10.92) MAX
.090(2.29)
.005(.127)
.015(.381) MIN
.022(.559) .014(.356)
.280(7.11) .240(6.10)
MAX
MIN
20S, 20-lead, 0.300" Wide, Plastic Gull-Wing Small Outline (SOIC) Dimensions in Inches and (Millimeters)
0.020 (0.508)
0.013 (0.330)
0.420 (10.7)
0.393 (9.98)
0.105 (2.67)
0.092 (2.34)
PIN 1
0 8
REF
0.035 (0.889)
0.015 (0.381)
.050 (1.27) BSC
0.513 (13.0)
0.497 (12.6)
0.012 (0.305)
0.003 (0.076)
0.299 (7.60)
0.291 (7.39)
0.013 (0.330)
0.009 (0.229)
20X, 20-lead, 4.4 mm Wide, Plastic Thin Shrink Small Outline (TSSOP) Dimensions in Millimeters and (Inches)
0.30(0.012)
0.18(0.007)
PIN 1 ID
0
REF
8
6.60(.260)
6.40(.252)
0.70(.028)
0.50(.020)
4.48(.176)
4.30(.169)
0.65(.0256) BSC
0.15(.006)
0.05(.002)
6.50(.256)
6.25(.246)
1.10(0.043) MAX
0.18(.007)
0.09(.003)
18
ATF16V8B(QL)
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0364I–04/01/xM
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