Table 7-4. DC Electrical Characteristics (GMAC Interfaces) (Sheet 2 of 2)
VOH_hstl15
High level output voltage (RGMII/
RTBI)
Vddn =Vddh
1.5V
IOH = -8mA
Vddn-
0.4
V
VOL_hstl15
Low level output voltage (RGMII/
RTBI)
Vddh = 1.5V
IOL = 8mA
0.4
V
VSW_diff
Output Voltage (peak-to-peak,
single ended)
200
400
500
750
mV
(SGMII/SerDes)
VDIFF-PP_diff
Output Voltage (peak-to-peak,
differential)
1000 1500 mV
(SGMII/SerDes)
VOL_diff
VOH_diff
VTCM_diff
Low-level Output Voltage
(SGMII/SerDes)
VTT-
1.5*
VSW
V
V
High-level Output Voltage
(SGMII/SerDes)
VTT-
0.5*
VSW
Transmit common-mode voltage
(SGMII/SerDes)
VTT-
VSW
Rdc1_hstl15
Class I SSTL 1.5 Single-ended
Driver Series Output Resistance
(RGMII/RTBI)
11
18
23
41
25
Ω
Iivttl
Driver Output Min Current LVTTL/
LVCMOS Mode
mA
µA
Ileakage
Iponddq_u
Iponddq_t
Driver Pad leakage in High
Impedance State
Receiver Current Draw (un-
terminated)
2.5
mA
mA
Receiver Current Draw
(terminated)
2.2
Ippdnddq
Receiver IDDQ PON
100
25
µA
Rdrv_33_16
Driver Series Output Resistance
(3.3V-16mA)
12
Ω
Note
The DC information is preliminary and subject to change.
Table 7-5. DC Electrical Characteristics (SDRAM Interfaces)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VILT_sstl18
Low level input threshold voltage
(DDR2 SDRAM Interface)
Vddr = 1.8V
Vvref
V
-
_ddr
Vvref_ddr
tbd V
=
0.05
VIHT_sslt18
High level input threshold voltage
(DDR2 SDRAM Interface)
Vddr = 1.8V
Vvref
V
+
_ddr
Vvref_ddr
tbd V
=
0.05
4450 – Data Sheet, DS-0131-06
Page67
Hifn Confidential
EXAR [ EXAR CORPORATION ]
