OR2T15B7BA352-DB 查看數據表（PDF） - Lattice Semiconductor
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OR2T15B7BA352-DB Datasheet PDF : 200 Pages
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Data Sheet
November 2006
ORCA Series 2 FPGAs
Timing Characteristics (continued)
Table 34B. OR2TxxB Ripple Mode PFU Timing Characteristics
OR2TxxB Commercial: VDD = 3.0 V to 3.6 V, 0 °C ≤ TA ≤ 70 °C; OR2TxxB Industrial: VDD = 3.0 V to 3.6 V, –40 °C ≤ TA ≤
+85 °C.
Speed
Parameter
Symbol
-7
-8
Unit
Min
Max
Min
Max
S Ripple Setup Times
(TJ = 85 °C, VDD = min):
Operands to Clock (A[3:0], B[3:0] to CK)
RIP_SET
2.4
—
1.9
—
ns
E Bitwise Operands to Clock
FRIP_SET
1.1
—
0.9
—
ns
(A[i], B[i] to CK at F[i])
Carry-in from Fast Carry to Clock
CIN_SET
1.6
—
1.3
—
ns
(CIN to CK)
IC Carry-in from General Routing to Clock
B4_SET
1.0
—
0.8
—
ns
(B4 to CK)
D Add/Subtract to Clock (A4 to CK)
AS_SET
2.9
—
2.3
—
ns
Ripple Hold Times (TJ = all, VDD = all): All
TH
ns
V E Ripple Delays (TJ = 85 °C, VDD = min):
Operands to Carry-out (A[3:0], B[3:0]
RIP_CODEL
2.2
—
1.8
—
ns
to COUT)
E Operands to Carry-out (A[3:0], B[3:0]
RIP_O4DEL
3.0
—
2.4
—
ns
U to O4)
Operands to PFU Out (A[3:0], B[3:0]
RIP_DEL
3.1
—
2.5
—
ns
to F[3:0])
D Bitwise Operands to PFU Out (A[i], B[i]
FRIP_DEL
1.4
—
1.1
—
ns
IN to F[i])
Carry-in from Fast Carry to Carry-out
CIN_CODEL
0.7
—
0.6
—
ns
(CIN to COUT)
Carry-in from Fast Carry to Carry-out
CIN_O4DEL
1.4
—
1.2
—
ns
T T (CIN to O4)
Carry-in from Fast Carry to PFU Out
CIN_DEL
1.9
—
1.5
—
ns
(CIN to F[3:0])
C Carry-in from General Routing to Carry-
B4_CODEL
0.7
—
0.6
—
ns
N out (B4 to COUT)
Carry-in from General Routing to Carry-
B4_O4DEL
1.4
—
1.2
—
ns
out (B4 to O4)
E Carry-in from General Routing to PFU
B4_DEL
1.9
—
1.5
—
ns
O Out (B4 to F[3:0])
Add/Subtract to Carry-out (A4 to COUT)
AS_CODEL
2.7
—
2.2
—
ns
L Add/Subtract to Carry-out (A4 to O4)
AS_O4DEL
3.4
—
2.8
—
ns
Add/Subtract to PFU Out (A4 to F[3:0])
AS_DEL
3.6
—
2.9
—
ns
SE DISC Notes: The new 4 x 1 multiplier and 4-bit comparator submodes use the appropriate ripple mode timing shown above.
Lattice Semiconductor
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