The ispLSI 2032VL is a High Density Programmable
Logic Device containing 32 Registers, 32 Universal I/O
pins, two Dedicated Input Pins, three Dedicated Clock
Input Pins, one dedicated Global OE input pin and a
Global Routing Pool (GRP). The GRP provides complete
interconnectivity between all of these elements. The
ispLSI 2032VL features in-system programmability
through the Boundary Scan Test Access Port (TAP) and
is 100% IEEE 1149.1 Boundary Scan Testable. The
ispLSI 2032VL offers non-volatile reprogrammability of
the logic, as well as the interconnect to provide truly
reconfigurable systems.
The basic unit of logic on the ispLSI 2032VL device is the
Generic Logic Block (GLB). The GLBs are labeled A0, A1
.. A7 (see Figure 1). There are a total of eight GLBs in the
ispLSI 2032VL device. Each GLB is made up of four
macrocells. Each GLB has 18 inputs, a programmable
AND/OR/Exclusive OR array, and four outputs which can
be configured to be either combinatorial or registered.
Inputs to the GLB come from the GRP and dedicated
inputs. All of the GLB outputs are brought back into the
GRP so that they can be connected to the inputs of any
GLB on the device.
Functional Block Diagram
Figure 1. ispLSI 2032VL Functional Block Diagram
GOE 0
Specifications ispLSI 2032VL
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
TDI/IN 0
TDO/IN 1
TMS/NC
BSCAN
Note: *Y1 and RESET are multiplexed on the same pin
Input Bus
A0
A1
A2
Output Routing Pool (ORP)
A3
Global Routing Pool
The device also has 32 I/O cells, each of which is directly
connected to an I/O pin. Each I/O cell can be individually
programmed to be a combinatorial input, output or bidirectional I/O pin with 3-state control, and the output
drivers can source 4 mA or sink 8 mA. Each output can
be programmed independently for fast or slow output
slew rate to minimize overall output switching noise.
Device pins can be safely driven to 3.3 Volt signal levels
to support mixed-voltage systems.
Eight GLBs, 32 I/O cells, two dedicated inputs and two
ORPs are connected together to make a Megablock (see
Figure 1). The outputs of the eight GLBs are connected
to a set of 32 universal I/O cells by the ORPs. Each
ispLSI 2032VL device contains one Megablock.
The GRP has as its inputs the outputs from all of the GLBs
and all of the inputs from the bi-directional I/O cells. All of
these signals are made available to the inputs of the
GLBs. Delays through the GRP have been equalized to
minimize timing skew.
I/O 31
Input Bus
0139B/2032VL
I/O 30
I/O 29
I/O 28
I/O 27
I/O 26
I/O 25
I/O 24
I/O 23
I/O 22
I/O 21
I/O 20
I/O 19
I/O 18
I/O 17
I/O 16
(GRP)
Generic Logic
Blocks (GLBs)
Y1*
TCK/Y2
Y0
A7
A6
A5
Output Routing Pool (ORP)
A4
CLK 1
CLK 2
CLK 0
Clocks in the ispLSI 2032VL device are selected using
the dedicated clock pins. Three dedicated clock pins (Y0,
Y1, Y2) or an asynchronous clock can be selected on a
GLB basis. The asynchronous or Product Term clock can
be generated in any GLB for its own clock.
Programmable Open-Drain Outputs
In addition to the standard output configuration, the
outputs of the ispLSI 2032VL are individually programmable, either as a standard totem-pole output or an
open-drain output. The totem-pole output drives the
specified Voh and Vol levels, whereas the open-drain
output drives only the specified Vol. The Voh level on the
open-drain output depends on the external loading and
pull-up. This output configuration is controlled by a programmable fuse. The default configuration is a totem-pole
configuration. The open-drain/totem-pole option is selectable through the ispDesignEXPERT software tools.
2
Specifications ispLSI 2032VL
Absolute Maximum Ratings
1
Supply Voltage Vcc................................ -0.5 to +4.05V
Input Voltage Applied............................. -0.5 to +4.05V
Off-State Output Voltage Applied .......... -0.5 to +4.05V
Storage Temperature..............................-65 to +150°C
Case Temp. with Power Applied .............. -55 to 125°C
Max. Junction Temp. (TJ) with Power Applied ... 150°C
1. Stresses above those listed under the “Absolute Maximum Ratings” may cause permanent damage to the device. Functional
operation of the device at these or at any other conditions above those indicated in the operational sections of this specification
is not implied (while programming, follow the programming specifications).
DC Recommended Operating Condition
V
V
V
CC
IL
IH
SYMBOL
Supply Voltage
Input Low Voltage
Input High Voltage
PARAMETER
Commercial
Industrial
TA = 0°C to + 70°C
= -40°C to + 85°C
T
A
MIN.MAX.UNITS
2.3
2.3
-0.3
1.7
2.7
2.7
0.7
3.6
Table 2-0005/2032VL
V
V
V
V
Capacitance (TA=25°C, f=1.0 MHz)
SYMBOL
C
1
C
2
C
3
I/O Capacitance
Clock Capacitance
PARAMETER
Erase Reprogram Specifications
PARAMETERMINIMUMMAXIMUMUNITS
Erase/Reprogram Cycles
UNITSTYPICALTEST CONDITIONS
8Dedicated Input Capacitance
6
10
10,000–Cycles
pf
pf
pfV = 2.5V, V = 0.0V
V = 2.5V, V = 0.0V
CC
V = 2.5V, V = 0.0V
CCI/O
CCY
IN
Table 2-0006/2032VL
Table 2-0008A/2032VL
3
Switching Test Conditions
V
CC
R
1
R
2
C
L
*
Device
Output
Test
Point
*C
L
includes Test Fixture and Probe Capacitance.
0213A/2032VL
Specifications ispLSI 2032VL
Input Pulse Levels
Input Rise and Fall Time
GND to V
≤ 1.5 ns
CC
Figure 2. Test Load
10% to 90%
Input Timing Reference Levels
Output Timing Reference Levels
Output Load
3-state levels are measured 0.15V from
V
/2
CC
/2
V
CC
See Figure 2
Table 2-0003/2032VL
steady-state active level.
Output Load Conditions (see Figure 2)
TEST CONDITIONR1R2CL
A250Ω218Ω35pF
Active High
B
Active Low
Active High to Z
at V -0.15V
C
Active Low to Z
at V +0.15V
OH
OL
∞
250Ω
∞
250Ω
218Ω35pF
∞
35pF
218Ω5pF
∞
Table 2-0004A/2032VL
5pF
DC Electrical Characteristics
Over Recommended Operating Conditions
SYMBOL
V
OL
V
OH
5
I
IL
I
IH
I
IL-isp
I
IL-PU
I
OS
I
CC
Output Low Voltage
Output High Voltage
Input or I/O Low Leakage Current
Input or I/O High Leakage Current
BSCAN Input Pull-Up Current
I/O Active Pull-Up Current
1
Output Short Circuit Current
2, 4
Operating Power Supply Current
1. One output at a time for a maximum duration of one second. V
PARAMETER
CONDITIONMIN.TYP.MAX. UNITS
IOL = 100µA
I
= 8mA
OL
= -1mA
I
OH
= -4mA
OH
0V ≤ V ≤ V (Max.)
IN IL
V
(min) ≤ VIN ≤ 3.6V
IH
0V ≤ V ≤ V
IN
IL
0V ≤ V ≤ V
IN IL
V = 2.5V, V = 0.5V
CC OUT
V = 0.0V, V = 2.5V
IL IH
f = 1 MHz
CLK
= 0.5V was selected to avoid test
OUT
—
——0.4V
VCC - 0.2
2.0
1.8——VI
—
—
—
—
—
—
problems by tester ground degradation. Characterized but not 100% tested.
2. Measured using two 16-bit counters.
3. Typical values are at V
4. Maximum I
section of this data sheet and Thermal Management section of the Lattice Semiconductor Data Book or CD-ROM to
estimate maximum I
5. With no pull-up resistors.
varies widely with specific device configuration and operating frequency. Refer to Power Consumption
CC
= 2.5V and TA = 25°C.
CC
.
CC
3
—
——VIOH = -100µA
—
—
—
—
—
—
45
0.2
—
-10
10
-150
-150
-100
Table 2-0007/2032VL
V
V
µA
µA
µA
µA
mA
mA—
4
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