LFE2-20E-5F256C LATTICE SEMICONDUCTOR, LFE2-20E-5F256C Datasheet - Page 81

• Manufacturer Part Number: LFE2-20E-5F256C
• Description: FPGA LatticeECP2 Family 21000 Cells 90nm (CMOS) Technology 1.2V 256-Pin FBGA
• Manufacturer: LATTICE SEMICONDUCTOR

Specifications of LFE2-20E-5F256C

• Package: 256FBGA
• Family Name: LatticeECP2
• Device Logic Units: 21000
• Typical Operating Supply Voltage: 1.2 V
• Maximum Number Of User I/os: 193
• Ram Bits: 282624
• In System Programmability: Yes

Lattice Semiconductor
LatticeECP2/M Internal Switching Characteristics
t
t
t
t
t
t
GPLL Parameters
t
SPLL Parameters
t
DSP Block Timing
t
t
t
t
t
t
t
t
t
t
t
1. Internal parameters are characterized but not tested on every device.
2. These parameters apply to LatticeECP devices only.
3. DSP Block is configured in Multiply Add/Sub 18x18 Mode.
HWREN_EBR
SUCE_EBR
HCE_EBR
RSTO_EBR
SUBE_EBR
HBE_EBR
RSTREC_GPLL
RSTREC_SPLL
SUI_DSP
HI_DSP
SUP_DSP
tHP_DSP
SUO_DSP
HO_DSP
COI_DSP
COP_DSP
COO_DSP
SUADDSUB
HADDSUB
Parameter
Hold Write/Read Enable to PFU Memory
Clock Enable Setup Time to EBR Output
Register
Clock Enable Hold Time to EBR Output
Register
Reset To Output Delay Time from EBR
Output Register
Byte Enable Set-Up Time to EBR Output
Register
Byte Enable Hold Time to EBR Output
Register
Reset Recovery to Rising Clock
Reset Recovery to Rising Clock
Input Register Setup Time
Input Register Hold Time
Pipeline Register Setup Time
Pipeline Register Hold Time
Output Register Setup Time
Output Register Hold Time
Input Register Clock to Output Time
Pipeline Register Clock to Output Time
Output Register Clock to Output Time
AddSub Input Register Setup Time
AddSub Input Register Hold Time
2,3
Description
Over Recommended Operating Conditions
3-29
-0.081
-0.115
0.123
0.138
0.139
-0.68
-1.25
-0.24
Min.
1.00
1.00
0.12
0.02
2.18
4.26
0.27
—
—
—
—
-7
Max.
1.03
3.92
1.87
0.50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
DC and Switching Characteristics
LatticeECP2/M Family Data Sheet
1
-0.090
-0.130
0.156
0.134
0.155
-0.01
-0.77
-1.40
-0.26
Min.
1.00
1.00
0.13
2.42
4.71
0.29
(Continued)
—
—
—
—
-6
Max.
1.15
4.30
1.98
0.52
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
-0.100
-0.145
0.173
0.145
0.172
-0.03
-0.86
-1.54
-0.28
Min.
1.00
1.00
0.14
2.66
5.16
0.32
—
—
—
—
-5
Max.
1.26
4.68
2.08
0.55
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns