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an4 standard cell family |
4-I/P AND gate |
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There are two versions of these AND gates. The v0 cells have been designed for high speed, and the v4 cells for low power. For both versions, the output inverter P:N transistor ratio is 2 and the 4-NAND gate transistor ratio is 2.5, which is close to the fastest ratio. The gain between the first and second stages is high for the v0 cells giving a gate optimised for speed. The gain in the v4 cells is set to 4, more suitable for a low power option. |
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z:(a*b*c*d) |
cell width |
power |
Generic 0.13um typical timing (ps & ps/fF), pin d. |
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leakage |
dynamic |
tR=PropR+RampR×Load(fF), tF=PropF+RampF×Load(fF) |
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lambda |
0.13um |
nW |
nW/MHz |
PinCap |
PropR |
RampR |
PropF |
RampF |
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| an4v4x1 |
60 |
3.30 |
0.68 |
16.1 |
2.3f |
121 |
3.47 |
141 |
2.76 |
| an4v0x1 |
60 |
3.30 |
1.10 |
19.7 |
4.1f |
94 |
3.38 |
106 |
2.63 |
| an4v0x2 |
60 |
3.30 |
1.50 |
26.5 |
5.0f |
97 |
2.15 |
106 |
1.66 |
| an4v0x4 |
96 |
5.28 |
2.54 |
42.5 |
7.6f |
94 |
1.08 |
106 |
0.83 |
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