0.25 micron libraries
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> virtual silicon 0.25um library > verisilicon 0.25um library > faraday 0.25um library |
free libraries
virtual silicon 0.25um library
standard cell
- 500 high performance standard cells
- 11-track cell architecture, performance optimized for 150~400 mhz
- average cell density of 45k gates/sq.mm
- multiple drive strengths
- hand-crafted layout
- scan version of every flip-flop available
- fully contacted well ties
- accurate modeling and characterization for timing and power
two port register file
- synchronous reads/writes
- static design with zero standby current
inline i/o
- 70 3.3v i/o pads
- pad pitch: 60um
- multiple current drives up to 24ma
- input buffer types - pull-up/pull-down resistor, pad keeper, clock driver and normal/schmitt
- output and bi-directional buffer types with slew rate control
- silicon proven esd and latch-up structures
- automated eda views
- routable over the core with higher metal layer
architecture |
word |
bit |
mux |
size |
access time (ns) |
two port register |
8 - 256k |
4 - 72 |
na |
32 bit - 18 kbit |
128 x 64 typical: 1.37 worst: 2.48 |
verisilicon 0.25um library (hjtc 0.25um logic 1p5m salicide 2.5v/3.3v process)
high-density standard cell
- wide variety of cell functions and drive strengths.
- process-specific optimization for high-density, high-speed, and low-power.
- engineered for synthesizability and routability.
- scan flip-flops for design for testability support.
i/o cell
- 3.3v i/o, 2.5v core, 5v tolerant.
- both inline and stagger compatible io pads.
- configurable input-output and skew rate control.
- robust esd (>2000v) and latch-up immunity (±200 ma).
- competitive pad pitch and height.
single-port / dual-port sram compiler
- ultra-high density, high-speed, and low-power.
- input frequency range: 20 mhz - 200 mhz
- fully static operation and automatic power down.
- pll module entirely located in the i/o pad rings
- adaptive self-time delay for fast access time.
- full suite of design views and models.
diffusion rom compiler
- ultra-high density, high-speed, and low-power.
- fully static operation and automatic power down.
- automatic code implementation.
- high capacity configuration.
- full suite of design views and models.
two-port register file compiler
- ultra-high density, high-speed, and low-power.
- fully static operation and automatic power down.
- adaptive self-time delay for fast access time.
- full suite of design views and models.
supported design tools
eda vendor |
tools |
cadence |
ambit, nc-verilog, soc encounter, silicon ensemble-pks, dracula … |
synopsys |
design compiler, prime time, physical compiler, dft compiler, tetramax atpg, formality, astro, apollo, hercules … |
mentor graphics |
calibre, fastscan, dftadvisor, modelsim… |
magma |
blast fusion, blast rtl … |
other libraries
faraday 0.25um library
standard cell
- 400 high performance standard cells
- 8-track cell architecture
- average cell density >60k gates/sq.mm
- optimized multiple drive strengths
- high porosity and routability
- scan version of every flip-flop available
- ultra low power cell available
- gated input for preventing leakage
- fully tool models support
inline and staggered i/o
- 2.5v, 3.3v i/o pads
- 2.5v/3.3vt, 3.3v/5vt i/o pads
- support over 500 io functions
- pad pitch: 65um (in-line), 40um (stagger)
- programmable current drives and slew rate control from 2ma to 16ma
- programmable pull-up/pull-down resistor, normal/ schmitt trigger
- provide 90 programming features in one i/o pad
- in-line to staggered i/o corner available
single port sram, two port sram, diffusion and via2 rom compilers
- synchronous reads/writes
- static design with zero standby current
- byte write capability
- provides both high speed and low power srams
- ability to compile to multiple aspect ratio
- scan and bist support
- power port connections support
- zero hold time for inputs
architecture |
word |
bit |
mux |
size |
access time (ns) |
single port sync. sram |
4 - 64k |
1 - 128 (increment: 1) |
1, 2, 4, 8, 16 |
4 bit - 512 kbit |
4k x 16 typical: 1.9 worst: 3.1 |
two port sync. sram |
4 - 16k |
1 - 80 |
1, 2, 4, 8, |
4 bit - 160 kbit |
4k x 16 typical: 2.1 worst: 3.3 |
via2 rom |
128 - 64k (increment:128x mux) |
2 - 128 (increment: 1) |
1, 2, 4, 8, |
256 bit - 1 mbit |
4k x 16 typical: 3.3 worst: 5.5 |
diffusion rom |
128 - 64k (increment:128x mux) |
2 - 128 (increment: 1) |
1, 2, 4, 8, |
256 bit - 1 mbit |
4k x 16 typical: 7.3 worst: 12.1 |