iCE65L08F-TCB196I Lattice, iCE65L08F-TCB196I Datasheet - Page 9
iCE65L08F-TCB196I
Manufacturer Part Number
iCE65L08F-TCB196I
Description
FPGA - Field Programmable Gate Array iCE65 7680 LUTs, 1.0 1.2V Ultra Low-Power
Manufacturer
Lattice
Datasheet
1.ICE65L04F-TCB196C.pdf
(110 pages)
Specifications of iCE65L08F-TCB196I
Rohs
yes
Number Of Gates
7680
Number Of Logic Blocks
32
Number Of I/os
150
Maximum Operating Frequency
256 MHz
Operating Supply Voltage
1.2 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
CBGA-196
Distributed Ram
128 Kbit
Minimum Operating Temperature
- 40 C
Operating Supply Current
54 uA
Factory Pack Quantity
248
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ICE65L08F-TCB196I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Lattice Semiconductor Corporation
www.latticesemi.com
Implementing Subtracters, Decrementers
As mentioned earlier, the Carry Logic generates a High output whenever the sum of I1 + I2 + CARRY_IN
generates a carry. The Carry Logic does not specifically have a subtract mode. To implement a subtract function or
decrement function, logically invert either the I1 or I2 input and invert the initial carry input. This performs a 2s
complement subtract operation.
CARRY_IN
GND
GND
A[1]
B[1]
A[0]
B[0]
I0
I1
I2
I3
I0
I1
I2
I3
I0
I1
I2
I3
Figure 6: Two-bit Adder Example
Carry
Logic
Carry
Logic
LUT4
LUT4
LUT4
CARRY_OUT
SUM[1]
SUM[0]
(2.42, 30-MAR-2011)
9
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