Xilinx DS610 manual Package Type, CS484, FG676, Signal Standard Top, Bottom Left, Right

DC and Switching Characteristics

R

Table 27: Recommended Number of Simultaneously

Switching Outputs per VCCO-GND Pair (VCCAUX=3.3V)

			Package Type
			CS484, FG676
Signal Standard
			Top, Bottom	Left, Right
(IOSTANDARD)			(Banks 0,2)	(Banks 1,3)
Single-Ended Standards
LVTTL	Slow	2	60	60
		4	41	41
		6	29	29
		8	22	22
		12	13	13
		16	11	11
		24	9	9
	Fast	2	10	10
		4	6	6
		6	5	5
		8	3	3
		12	3	3
		16	3	3
		24	2	2
	QuietIO	2	80	80
		4	48	48
		6	36	36
		8	27	27
		12	16	16
		16	13	13
		24	12	12
LVCMOS33	Slow	2	76	76
		4	46	46
		6	27	27
		8	20	20
		12	13	13
		16	10	10
		24	–	9
	Fast	2	10	10
		4	8	8
		6	5	5
		8	4	4
		12	4	4
		16	2	2
		24	–	2
	QuietIO	2	76	76
		4	46	46
		6	32	32
		8	26	26
		12	18	18
		16	14	14
		24	–	10

Table 27: Recommended Number of Simultaneously

Switching Outputs per VCCO-GND Pair (VCCAUX=3.3V)

			Package Type
			CS484, FG676
Signal Standard
			Top, Bottom	Left, Right
(IOSTANDARD)			(Banks 0,2)	(Banks 1,3)
LVCMOS25	Slow	2	76	76
		4	46	46
		6	33	33
		8	24	24
		12	18	18
		16	–	11
		24	–	7
	Fast	2	18	18
		4	14	14
		6	6	6
		8	6	6
		12	3	3
		16	–	3
		24	–	2
	QuietIO	2	76	76
		4	60	60
		6	48	48
		8	36	36
		12	36	36
		16	–	36
		24	–	8
LVCMOS18	Slow	2	64	64
		4	34	34
		6	22	22
		8	18	18
		12	–	13
		16	–	10
	Fast	2	18	18
		4	9	9
		6	7	7
		8	4	4
		12	–	4
		16	–	3
	QuietIO	2	64	64
		4	64	64
		6	48	48
		8	36	36
		12	–	36
		16	–	24

34	www.xilinx.com	DS610-3 (v2.0) July 16, 2007
		Product Specification