Reduced Voltage Scaling in Clock Distribution Networks

Table 3

Simulation comparison with different setup.

	Device width	clkin	Input	Power		Delay (ps)		Slope (ps)
cap	hvtw	pwidth	voltage (v)	old	new	old	new	old	new	old	new
0	0.25	2.0𝐸−10	0.9	active_ power <w>	active_ power <w>	delay_ clkin_ out <ps>	delay_ clkin_ out <ps>	slope_ fall_out <ps>	slope_ out_ fall <ps>	slope_ rise_ out <ps>	slope_ out_ rise <ps>
2.00𝐸−15	0.25	2.0𝐸−10	0.9	8.7𝐸−06	3.9𝐸−06	39.93	37.24	4.40	10.66	4.40	13.57
0	0.25	3.0𝐸−10	0.9	1.2𝐸−05	7.9𝐸−06	52.15	42.62	6.55	13.45	6.55	19.41
2.00𝐸−15	0.25	3.0𝐸−10	0.9	5.7𝐸−06	2.6𝐸−06	39.99	38.37	4.40	10.66	4.40	13.57
0	0.25	4.0𝐸−10	0.9	8.3𝐸−06	5.3𝐸−06	52.20	45.29	6.55	13.45	6.55	19.41
2.00𝐸−15	0.25	4.0𝐸−10	0.9	4.3𝐸−06	1.9𝐸−06	40.01	38.86	4.40	10.66	4.40	13.57
0	0.25	5.0𝐸−10	0.9	5.9𝐸−06	4.0𝐸−06	52.22	46.37	6.55	13.45	6.55	19.42
2.00𝐸−15	0.25	5.0𝐸−10	0.9	3.5𝐸−06	1.6𝐸−06	40.02	39.17	4.40	10.66	4.40	13.59
0	0.25	6.0𝐸−10	0.9	5.1𝐸−06	3.2𝐸−06	52.23	47.03	6.55	13.45	6.55	19.43
2.00𝐸−15	0.25	6.0𝐸−10	0.9	3.2𝐸−06	1.3𝐸−06	40.03	39.40	4.40	10.66	4.40	13.59
0	0.25	2.0𝐸−10	1	4.3𝐸−06	2.6𝐸−06	52.24	47.51	6.55	13.45	6.55	19.43
2.00𝐸−15	0.25	2.0𝐸−10	1	1.2𝐸−05	4.8𝐸−06	33.93	31.31	3.98	9.87	3.98	10.57
0	0.25	3.0𝐸−10	1	1.6𝐸−05	9.8𝐸−06	44.57	36.89	5.90	12.61	5.90	14.98
2.00𝐸−15	0.25	3.0𝐸−10	1	7.6𝐸−06	3.2𝐸−06	33.95	32.22	3.98	9.87	3.98	10.59
0	0.25	4.0𝐸−10	1	1.1𝐸−05	6.5𝐸−06	44.59	39.01	5.90	12.61	5.90	14.96
2.00𝐸−15	0.25	4.0𝐸−10	1	5.7𝐸−06	2.4𝐸−06	33.96	32.63	3.98	9.87	3.98	10.58
0	0.25	5.0𝐸−10	1	7.7𝐸−06	4.9𝐸−06	44.60	39.89	5.90	12.61	5.90	14.98
2.00𝐸−15	0.25	5.0𝐸−10	1	4.7𝐸−06	1.9𝐸−06	33.96	32.89	3.98	9.87	3.98	10.58
0	0.25	6.0𝐸−10	1	6.7𝐸−06	3.9𝐸−06	44.60	40.44	5.90	12.61	5.90	14.97
2.00𝐸−15	0.25	6.0𝐸−10	1	4.2𝐸−06	1.6𝐸−06	33.96	33.07	3.98	9.87	3.98	10.58
0	0.25	2.0𝐸−10	1.1	5.6𝐸−06	3.3𝐸−06	44.61	40.83	5.90	12.61	5.90	14.96
2.00𝐸−15	0.25	2.0𝐸−10	1.1	1.5𝐸−05	5.8𝐸−06	29.96	27.28	3.73	9.45	3.73	8.91
0	0.25	3.0𝐸−10	1.1	2.1𝐸−05	1.2𝐸−05	39.49	32.98	5.49	12.25	5.49	12.43
2.00𝐸−15	0.25	3.0𝐸−10	1.1	1.0𝐸−05	3.9𝐸−06	29.97	28.07	3.73	9.45	3.73	8.88
0	0.25	4.0𝐸−10	1.1	1.4𝐸−05	7.9𝐸−06	39.49	34.80	5.49	12.25	5.49	12.43
2.00𝐸−15	0.25	4.0𝐸−10	1.1	7.6𝐸−06	2.9𝐸−06	29.97	28.43	3.73	9.45	3.73	8.87
0	0.25	5.0𝐸−10	1.1	1.0𝐸−05	5.9𝐸−06	39.49	35.56	5.49	12.25	5.49	12.43
2.00𝐸−15	0.25	5.0𝐸−10	1.1	6.2𝐸−06	2.3𝐸−06	29.97	28.65	3.73	9.45	3.73	8.88
0	0.25	6.0𝐸−10	1.1	8.6𝐸−06	4.8𝐸−06	39.49	36.04	5.49	12.25	5.49	12.43
2.00𝐸−15	0.25	6.0𝐸−10	1.1	5.6𝐸−06	1.9𝐸−06	29.97	28.81	3.73	9.45	3.73	8.89
0	0.25	2.0𝐸−10	1.2	7.2𝐸−06	4.0𝐸−06	39.49	36.38	5.49	12.25	5.49	12.42
2.00𝐸−15	0.25	2.0𝐸−10	1.2	2.0𝐸−05	7.0𝐸−06	27.33	24.43	3.57	9.18	3.57	7.90
0	0.25	3.0𝐸−10	1.2	2.7𝐸−05	1.4𝐸−05	36.05	30.19	5.26	12.06	5.26	10.94
2.00𝐸−15	0.25	3.0𝐸−10	1.2	1.3𝐸−05	4.6𝐸−06	27.34	25.13	3.57	9.18	3.57	7.91
0	0.25	4.0𝐸−10	1.2	1.8𝐸−05	9.5𝐸−06	36.05	31.81	5.26	12.06	5.26	10.91
2.00𝐸−15	0.25	4.0𝐸−10	1.2	9.9𝐸−06	3.5𝐸−06	27.34	25.46	3.57	9.18	3.57	7.91
0	0.25	5.0𝐸−10	1.2	1.3𝐸−05	7.1𝐸−06	36.05	32.50	5.26	12.06	5.26	10.93
2.00𝐸−15	0.25	5.0𝐸−10	1.2	8.2𝐸−06	2.8𝐸−06	27.34	25.66	3.57	9.18	3.57	7.91
0	0.25	6.0𝐸−10	1.2	1.1𝐸−05	5.7𝐸−06	36.05	32.93	5.26	12.06	5.26	10.94
2.00𝐸−15	0.25	6.0𝐸−10	1.2	7.4𝐸−06	2.3𝐸−06	27.34	25.79	3.57	9.18	3.57	7.90
0	0.25	2.0𝐸−10	1.3	9.3𝐸−06	4.7𝐸−06	36.05	33.23	5.26	12.06	5.26	10.94
2.00𝐸−15	0.25	2.0𝐸−10	1.3	2.6𝐸−05	8.2𝐸−06	25.60	22.32	3.53	8.85	3.53	7.30
0	0.25	3.0𝐸−10	1.3	3.4𝐸−05	1.7𝐸−05	33.69	28.06	5.11	11.92	5.11	10.00
2.00𝐸−15	0.25	3.0𝐸−10	1.3	1.7𝐸−05	5.5𝐸−06	25.60	22.95	3.53	8.85	3.53	7.28
0	0.25	4.0𝐸−10	1.3	2.3𝐸−05	1.1𝐸−05	33.69	29.55	5.11	11.92	5.11	9.97
2.00𝐸−15	0.25	4.0𝐸−10	1.3	1.3𝐸−05	4.1𝐸−06	25.60	23.24	3.53	8.85	3.53	7.27
0	0.25	5.0𝐸−10	1.3	1.6𝐸−05	8.3𝐸−06	33.69	30.18	5.11	11.92	5.11	10.00
2.00𝐸−15	0.25	5.0𝐸−10	1.3	1.1𝐸−05	3.3𝐸−06	25.60	23.42	3.53	8.85	3.53	7.26
0	0.25	6.0𝐸−10	1.3	1.4𝐸−05	6.7𝐸−06	33.69	30.56	5.11	11.92	5.11	10.01
2.00𝐸−15	0.25	6.0𝐸−10	1.3	9.6𝐸−06	2.7𝐸−06	25.60	23.54	3.53	8.85	3.53	7.26
0	0.25	2.0𝐸−10	1.4	1.2𝐸−05	5.6𝐸−06	33.69	30.83	5.11	11.92	5.11	10.01
2.00𝐸−15	0.25	2.0𝐸−10	1.4	3.4𝐸−05	9.5𝐸−06	24.48	20.70	3.49	8.46	3.49	6.91
0	0.25	3.0𝐸−10	1.4	4.3𝐸−05	1.9𝐸−05	32.08	26.34	5.10	11.77	5.10	9.41
2.00𝐸−15	0.25	3.0𝐸−10	1.4	2.3𝐸−05	6.3𝐸−06	24.48	21.27	3.49	8.46	3.49	6.91
0	0.25	4.0𝐸−10	1.4	2.9𝐸−05	1.3𝐸−05	32.08	27.70	5.10	11.77	5.10	9.40
2.00𝐸−15	0.25	4.0𝐸−10	1.4	1.7𝐸−05	4.8𝐸−06	24.48	21.52	3.49	8.46	3.49	6.92
0	0.25	5.0𝐸−10	1.4	2.1𝐸−05	9.7𝐸−06	32.08	28.28	5.10	11.77	5.10	9.40
2.00𝐸−15	0.25	5.0𝐸−10	1.4	1.4𝐸−05	3.8𝐸−06	24.48	21.67	3.49	8.46	3.49	6.92
0	0.25	6.0𝐸−10	1.4	1.8𝐸−05	7.7𝐸−06	32.08	28.63	5.10	11.77	5.10	9.40
2.00𝐸−15	0.25	6.0𝐸−10	1.4	1.3𝐸−05	3.2𝐸−06	24.48	21.77	3.49	8.46	3.49	6.92
0	0.25	2.0𝐸−10	1.5	1.5𝐸−05	6.4𝐸−06	32.08	28.87	5.10	11.77	5.10	9.40
2.00𝐸−15	0.25	2.0𝐸−10	1.5	4.3𝐸−05	1.1𝐸−05	23.76	19.43	3.51	8.01	3.51	6.67
0	0.25	3.0𝐸−10	1.5	5.4𝐸−05	2.2𝐸−05	30.98	24.89	5.07	11.61	5.07	9.05
2.00𝐸−15	0.25	3.0𝐸−10	1.5	2.9𝐸−05	7.3𝐸−06	23.76	19.92	3.51	8.01	3.51	6.67
0	0.25	4.0𝐸−10	1.5	3.7𝐸−05	1.5𝐸−05	30.98	26.13	5.07	11.61	5.07	9.04
2.00𝐸−15	0.25	4.0𝐸−10	1.5	2.2𝐸−05	5.5𝐸−06	23.76	20.13	3.51	8.01	3.51	6.67
0	0.25	5.0𝐸−10	1.5	2.6𝐸−05	1.1𝐸−05	30.98	26.66	5.07	11.61	5.07	9.03
2.00𝐸−15	0.25	5.0𝐸−10	1.5	1.8𝐸−05	4.4𝐸−06	23.76	20.26	3.51	8.01	3.51	6.67
0	0.25	6.0𝐸−10	1.5	2.3𝐸−05	8.9𝐸−06	30.98	26.97	5.07	11.61	5.07	9.02
2.00𝐸−15	0.25	6.0𝐸−10	1.5	1.6𝐸−05	3.6𝐸−06	23.76	20.33	3.51	8.01	3.51	6.67
				1.9𝐸−05	7.4𝐸−06	30.98	27.18	5.07	11.61	5.07	9.01
		Average		2.8𝐸−07	1.1𝐸−07	0.45	0.39	0.07	0.17	0.07	0.13