iCE40 HX-Series Ultra-Low Power Family
Differential Inputs
Figure 3: Differential Input Specifications
VCCIO_3
DPxxB
Differential
Input common mode voltage
input voltage
VIN_B
50%
VID
VIN_A
DPxxA
VICM
iC40 Differential
Input
GND
Input common mode voltage:
ꢁꢁꢀꢄꢅꢆ
ꢇ
ꢀꢁꢂꢃ
ꢀꢁ
ꢂꢃꢄ
Differential input voltage:
ꢀꢈꢃ| ꢀꢉꢅꢊꢋ
|
ꢀꢉꢅꢌ
Table 6: Recommended Operating Conditions for Differential Inputs
VCCIO_3 (V)
VID (mV)
Nom
VICM (V)
Nom
I/O
Standard
Min
Nom
Max
Min
Max
Min
ꢁꢁꢀꢄꢅꢆ
Max
ꢁꢁꢀꢄꢅꢆ
ꢁꢁꢀꢄꢅꢆ
LVDS
2.38
1.71
2.50
2.63
1.89
250
350
150
450
ꢇ ꢈꢉꢆꢈ
ꢊ ꢈꢉꢆꢈ
ꢇ
ꢇ
ꢇ
ꢁꢁꢀꢄꢅꢆ
ꢁꢁꢀꢄꢅꢆ
ꢁꢁꢀꢄꢅꢆ
SubLVDS
1.80
100
200
ꢇ ꢈꢉꢋꢌ
ꢊ ꢈꢉꢋꢌ
ꢇ
ꢇ
ꢇ
Differential Outputs
Figure 4: Differential Output Specifications
VCCIO_x
Differential
1%
RP
Output common mode voltage
output voltage
RS
RS
VOUT_B
50%
VOD
VOUT_A
VOCM
iC40 Differential
Output Pair
GND
Output common mode voltage:
Differential output voltage:
ꢁꢁꢀꢄꢅꢍ
ꢇ
ꢄꢁꢂꢃ
ꢀꢁꢍꢃꢄ
ꢄꢈꢃ| ꢄꢎꢏꢅꢊꢋ
|
ꢄꢎꢏꢅꢌ
Table 7: Recommended Operating Conditions for Differential Outputs
Ω
VCCIO_x (V)
VOD (mV)
Nom
VOCM (V)
I/O
Standard
Min
Nom
Max
Min
Max
Min
ꢁꢁꢀꢄ
Nom
Max
ꢁꢁꢀꢄ
R
R
P
S
ꢁꢁꢀꢄ
ꢇ
LVDS
2.38
1.71
2.50
2.63
1.89
150
270
140
120
300
350
150
400
ꢇ ꢈꢉꢎꢌ
ꢊ ꢈꢉꢎꢌ
ꢇ
ꢇ
ꢁꢁꢀꢄ
ꢇ
ꢁꢁꢀꢄ
ꢇ
ꢁꢁꢀꢄ
ꢇ
SubLVDS
1.80
100
200
ꢇ ꢈꢉꢎꢈ
ꢊ ꢈꢉꢎꢈ
Lattice Semiconductor Corporation
(1.32, 03-OCT-2012)
www.latticesemi.com/
5
LATTICE [ LATTICE SEMICONDUCTOR ]
