OR2C04A datasheet(136/192 Pages) ETC

136 / 192 page

Data Sheet

ORCA Series 2 FPGAs

June 1999

136

Lucent Technologies Inc.

Timing Characteristics (continued)

Table 34A. OR2CxxA and OR2TxxA Ripple Mode PFU Timing Characteristics

OR2CxxA Commercial: VDD = 5.0 V ± 5%, 0 °C

≤ TA ≤ 70 °C; OR2CxxA Industrial: VDD = 5.0 V ± 10%, –40 °C ≤ TA ≤ +85 °C.

OR2TxxA Commercial: VDD = 3.0 V to 3.6 V, 0 °C

≤ TA ≤ 70 °C; OR2TxxA Industrial: VDD = 3.0 V to 3.6 V, –40 °C ≤ TA ≤ +85 °C.

Parameter

Symbol

Speed

Unit

-2

-3

-4

-5

-6

-7

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Ripple Setup Times

(TJ = +85 °C, VDD = min):

Operands to Clock (A[3:0], B[3:0] to CK)

Bitwise Operands to Clock

(A[i], B[i] to CK at F[i])

Carry-in from Fast Carry to Clock

(CIN to CK)

Carry-in from General Routing to Clock

(B4 to CK)

Add/Subtract to Clock (A4 to CK)

RIP_SET

FRIP_SET

CIN_SET

B4_SET

AS_SET

6.7

2.4

4.0

8.2

—

5.0

1.7

3.2

5.6

—

3.7

1.3

1.9

4.3

—

3.3

1.2

1.7

3.9

—

2.8

1.0

1.4

3.2

—

2.5

0.9

1.3

3.1

—

Ripple Hold Times (TJ = all, VDD = all): All

0.0

—

0.0

—

0.0

—

0.0

—

0.0

—

0.0

—

Ripple Delays (TJ = 85 °C, VDD = min):

Operands to Carry-out (A[3:0], B[3:0]

to COUT)

Operands to Carry-out (A[3:0], B[3:0]

to O4)

Operands to PFU Out (A[3:0], B[3:0]

to F[3:0])

Bitwise Operands to PFU Out (A[i], B[i]

to F[i])

Carry-in from Fast Carry to Carry-out

(CIN to COUT)

Carry-in from Fast Carry to Carry-out

(CIN to O4)

Carry-in from Fast Carry to PFU Out

(CIN to F[3:0])

Carry-in from General Routing to Carry-

out (B4 to COUT)

Carry-in from General Routing to Carry-

out (B4 to O4)

Carry-in from General Routing to PFU Out

(B4 to F[3:0])

Add/Subtract to Carry-out (A4 to COUT)

Add/Subtract to Carry-out (A4 to O4)

Add/Subtract to PFU Out (A4 to F[3:0])

RIP_CODEL

RIP_O4DEL

RIP_DEL

FRIP_DEL

CIN_CODEL

CIN_O4DEL

CIN_DEL

B4_CODEL

B4_O4DEL

B4_DEL

AS_CODEL

AS_O4DEL

AS_DEL

—

5.4

6.9

8.2

4.0

1.9

3.5

5.6

1.9

3.5

5.6

6.1

7.6

9.7

—

3.8

4.8

6.0

2.8

1.6

2.6

4.2

1.6

2.6

4.2

4.5

5.6

6.8

—

3.3

4.2

4.7

2.1

1.1

2.1

2.9

1.1

2.1

2.9

3.9

4.9

5.3

—

2.6

3.4

3.8

1.7

0.9

1.7

2.3

0.9

1.7

2.3

3.1

3.9

4.3

—

2.1

2.6

3.2

1.6

0.7

1.3

2.2

0.7

1.3

2.2

2.5

3.1

3.5

—

1.8

2.4

2.8

1.5

0.6

1.1

1.7

0.6

1.1

2.1

2.3

2.8

3.1

Notes:

The new 4 x 1 multiplier and 4-bit comparator submodes use the appropriate ripple mode timing shown above.

Speed grades of -5, -6, and -7 are for OR2TxxA devices only.

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