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DC and Switching Characteristics
18 www.xilinx.com DS610-3 (v2.0) July 16, 2007
Product Specification
R
Figure 4:
Differential Output Voltages
Table 13:
DC Characteristics of User I/Os Using Differential Signal Standards
IOSTANDARD Attribute
V
OD
V
OCM
V
OH
V
OL
Min (mV) Typ (mV) Max (mV) Min (V) Typ (V) Max (V) Min (V) Max (V)
LVDS_25 247 350 454 1.125
–
1.375
– –
LVDS_33 247 350 454 1.125
–
1.375
– –
BLVDS_25 240 350 460
–
1.30
– – –
MINI_LVDS_25 300
–
600 1.0
–
1.4
– –
MINI_LVDS_33 300
–
600 1.0
–
1.4
– –
RSDS_25 100
–
400 1.0
–
1.4
– –
RSDS_33 100
–
400 1.0
–
1.4
– –
TMDS_33 400
–
800 V
CCO
– 0.405 –V
CCO
– 0.190
– –
PPDS_25 100
–
400 0.5 0.8 1.4
– –
PPDS_33 100
–
400 0.5 0.8 1.4
– –
DIFF_HSTL_I_18
– – – – – –
V
CCO
– 0.4 0.4
DIFF_HSTL_II_18
– – – – – –
V
CCO
– 0.4 0.4
DIFF_HSTL_III_18
– – – – – –
V
CCO
– 0.4 0.4
DIFF_HSTL_I
– – – – – –
V
CCO
– 0.4 0.4
DIFF_HSTL_III
– – – – – –
V
CCO
– 0.4 0.4
DIFF_SSTL18_I
– – – – – –
V
TT
+ 0.475 V
TT
– 0.475
DIFF_SSTL18_II
– – – – – –
V
TT
+ 0.475 V
TT
– 0.475
DIFF_SSTL2_I
– – – – – –
V
TT
+ 0.61 V
TT
– 0.61
DIFF_SSTL2_II
– – – – – –
V
TT
+ 0.81 V
TT
– 0.81
DIFF_SSTL3_I
– – – – – –
V
TT
+ 0.6 V
TT
- 0.6
DIFF_SSTL3_II
– – – – – –
V
TT
+ 0.8 V
TT
- 0.8
Notes:
1. The numbers in this table are based on the conditions set forth in Table 7 and Table 12.
2. See "External Termination Requirements for Differential I/O."
3. Output voltage measurements for all differential standards are made with a termination resistor (R
T
) of 100Ω across the N and P pins of the
differential signal pair.
4. At any given time, no more than two of the following differential output standards can be assigned to an I/O bank: LVDS_25, RSDS_25,
MINI_LVDS_25, PPDS_25 when V
CCO
=2.5V, or LVDS_33, RSDS_33, MINI_LVDS_33, TMDS_33, PPDS_33 when V
CCO
= 3.3V
V
OUTN
V
OUTP
GND level
50%
V
OCM
V
OCM
V
OD
V
OL
V
OH
V
OUTP
Internal
Logic
V
OUTN
N
P
= Output common mode voltage =
2
V
OUTP
+
V
OUTN
V
OD
= Output differential voltage =
V
OH
= Output voltage indicating a High logic level
V
OL
= Output voltage indicating a Low logic level
V
OUTP
-
V
OUTN
Differential
I/O Pair Pins
DS312-3_03_102406