— 128 and 64 I/O Pin Versions, Eight Dedicated Inputs
— 128 Registers
— High Speed Global Interconnect
— Wide Input Gating for Fast Counters, State
Machines, Address Decoders, etc.
— Small Logic Block Size for Random Logic
— 100% Functional, JEDEC and Pinout Compatible
with ispLSI 2128V and 2128VE Devices
— Interfaces with Standard 3.3V Devices (Inputs and
I/Os are 3.3V Tolerant)
— 125 mA Typical Active Current
2
CMOS® TECHNOLOGY
—
fmax = 150 MHz Maximum Operating Frequency
tpd = 6.0 ns Propagation Delay
—
— Electrically Erasable and Reprogrammable
— Non-Volatile
— 100% Tested at Time of Manufacture
— Unused Product Term Shutdown Saves Power
— 2.5V In-System Programmability (ISP™) Using
Boundary Scan Test Access Port (TAP)
— Open-Drain Output Option for Flexible Bus Interface
Capability, Allowing Easy Implementation of Wired-
OR Bus Arbitration Logic
— Increased Manufacturing Yields, Reduced Time-to-
Market and Improved Product Quality
— Reprogram Soldered Devices for Faster Prototyping
PLDs WITH THE DENSITY AND FLEXIBILITY OF FPGAS
— Enhanced Pin Locking Capability
— Three Dedicated Clock Input Pins
— Synchronous and Asynchronous Clocks
— Programmable Output Slew Rate Control
— Flexible Pin Placement
— Optimized Global Routing Pool Provides Global
Interconnectivity
PLETE ISP DEVICE DESIGN SYSTEMS FROM HDL
SYNTHESIS THROUGH IN-SYSTEM PROGRAMMING
— Superior Quality of Results
— Tightly Integrated with Leading CAE Vendor Tools
— Productivity Enhancing Timing Analyzer, Explore
Tools, Timing Simulator and ispANALYZER™
— PC and UNIX Platforms
Functional Block Diagram*
Description
The ispLSI 2128VL is a High Density Programmable
Logic Device available in 128 and 64 I/O-pin versions.
The device contains 128 Registers, eight Dedicated
Input pins, three Dedicated Clock Input pins, two dedicated Global OE input pins and a Global Routing Pool
(GRP). The GRP provides complete interconnectivity
between all of these elements. The ispLSI 2128VL features in-system programmability through the Boundary
Scan Test Access Port (TAP) and is 100% IEEE 1149.1
Boundary Scan Testable. The ispLSI 2128VL offers nonvolatile reprogrammability of the logic, as well as the
interconnect to provide truly reconfigurable systems.
The basic unit of logic on the ispLSI 2128VL device is the
Generic Logic Block (GLB). The GLBs are labeled A0, A1
.. D7 (see Figure 1). There are a total of 32 GLBs in the
ispLSI 2128VL 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.
Output Routing Pool (ORP)Output Routing Pool (ORP)
C0
B7
B6
CLK 0
CLK 1
CLK 2
0139B/2128VL
I/O 60
I/O 61
I/O 62
I/O 63
Y0Y1Y2
I/O 58
I/O 59
Megablock
G
e
n
e
r
c
L
i
o
g
c
i
)
s
(
s
G
L
k
B
o
l
c
B
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
A0
A1
A2
A3
Input Bus
A4
A5
A6
Output Routing Pool (ORP)Output Routing Pool (ORP)
A7
TDO/IN 2
Output Routing Pool (ORP)Output Routing Pool (ORP)
D7
D6
B0
B1
B2
Output Routing Pool (ORP)Output Routing Pool (ORP)
I/O 32
I/O 33
I/O 34
I/O 35
I/O 36
I/O 37
I/O 38
I/O 39
I/O 40
TCK/IN 3
I/O 41
IN 5
IN 4
I/O 95
I/O 94
I/O 93
I/O 92
I/O 91
I/O 90
I/O 89
I/O 88
I/O 87
I/O 86
I/O 85
I/O 84
I/O 83
I/O 82
I/O 81
I/O 80
I/O 79
I/O 78
I/O 77
I/O 76
I/O 75
I/O 74
I/O 73
I/O 72
I/O 71
I/O 70
I/O 69
I/O 68
I/O 67
I/O 66
I/O 65
I/O 64
RESET
GOE 0
GOE 1
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
TDI/IN 0
TMS/IN 1
BSCAN
Megablock
G
e
n
e
r
i
k
o
s
l
c
B
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
Input Bus
I/O 8
I/O 9
Output Routing Pool (ORP)
I/O 63
I/O 62
I/O 61
I/O 60
I/O 59
I/O 58
c
L
o
g
c
i
D7
D6
B1
D5
B2
Output Routing Pool (ORP)
I/O 20
I/O 21
I/O 22
I/O 23
)
(
s
G
L
B
A0
A1
A2
A3
A4
A5
A6
A7
B0
I/O 16
I/O 17
I/O 18
I/O 19
TCK/IN 3
TDO/IN 2
I/O 57
I/O 56
Input Bus
Output Routing Pool (ORP)
D4
D3
Global
Routing
Pool
(GRP)
B3
B4
Input Bus
I/O 55
I/O 54
I/O 53
I/O 52
D2
D1
B5
B6
I/O 24
I/O 25
I/O 26
I/O 27
I/O 28
I/O 29
*Not available on 84-PLCC Device
I/O 51
I/O 50
I/O 49
I/O 48
IN 7*
IN 6*
Input Bus
Output Routing Pool (ORP)
CLK 1
CLK 2
0139B/2128VL.64IO
IN 5*
IN 4*
I/O 47
I/O 46
I/O 45
I/O 44
I/O 43
I/O 42
I/O 41
I/O 40
I/O 39
I/O 38
I/O 37
I/O 36
I/O 35
I/O 34
I/O 33
I/O 32
D0
C7
C6
C5
C4
C3
C2
C1
C0
B7
CLK 0
Y0Y1Y2
I/O 30
I/O 31
The 128-I/O 2128VL contains 128 I/O cells, while the 64I/O version contains 64 I/O cells. Each I/O cell is directly
connected to an I/O pin and can be individually programmed to be a combinatorial input, output or
bi-directional I/O pin with 3-state control, and the output
drivers can source 4mA or sink 8mA. 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 3.3V signal levels to support
mixed-voltage systems.
Eight GLBs, 32 or 16 I/O cells, two dedicated inputs and
two or one ORPs are connected together to make a
Megablock (see Figure 1). The outputs of the eight GLBs
are connected to a set of 32 or 16 universal I/O cells by
the two or one ORPs. Each ispLSI 2128VL device contains four Megablocks.
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.
Clocks in the ispLSI 2128VL 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 2128VL 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 2128VL
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 2-0005/2128VL
V
V
V
V
Capacitance (TA=25°C, f=1.0 MHz)
SYMBOL
C
1
C
2
C
3
I/O Capacitance
Clock and Global Output Enable Capacitance
1. Unless noted otherwise, all parameters use a GRP load of four, 20 PTXOR path, ORP and Y0 clock.
2. Standard 16-bit counter using GRP feedback.
3. Reference Switching Test Conditions section.
A1Data Propagation Delay, 4PT Bypass, ORP Bypass—7.5—10.0ns
A2Data Propagation Delay—— ns
A3Clock Frequency with Internal Feedback135—100—MHz
—4Clock Frequency with External Feedback——MHz
—5Clock Frequency, Max. Toggle——MHz
—6GLB Reg. Setup Time before Clock, 4 PT Bypass——nsA7GLB Reg. Clock to Output Delay, ORP Bypass—— ns
—8GLB Reg. Hold Time after Clock, 4 PT Bypass0.0—ns
—9GLB Reg. Setup Time before Clock6.0—nsA10 GLB Reg. Clock to Output Delay—— ns
—11 GLB Reg. Hold Time after Clock0.0—nsA12 Ext. Reset Pin to Output Delay, ORP Bypass—— ns
—13 Ext. Reset Pulse Duration5.5—ns
B14 Input to Output Enable—— ns
C15 Input to Output Disable—— ns
B16 Global OE Output Enable—— ns
C17 Global OE Output Disable—— ns