OR3C80 datasheet(108/210 Pages) AGERE

108 / 210 page

108

Lucent Technologies Inc.

Data Sheet

June 1999

ORCA Series 3C and 3T FPGAs

Timing Characteristics (continued)

Table 43. Ripple Mode PFU Timing Characteristics (continued)

OR3Cxx Commercial: VDD = 5.0 V ± 5%, 0 °C < TA < 70 °C; Industrial: VDD = 5.0 V ± 10%, –40 °C < TA < +85 °C.

OR3Txxx Commercial: VDD = 3.0 V to 3.6 V, 0 °C < TA < 70 °C; Industrial: VDD = 3.0 V to 3.6 V, –40 °C < TA < +85 °C.

Parameter

(TJ = +85 °C, VDD = min)

Symbol

Speed

Unit

-4

-5

-6

-7

Min

Max

Min Max

Min

Max

Min

Max

Full Ripple Delays (byte wide):

Operands to Carry-out (Kz[1:0] to COUT)

Operands to Carry-out (Kz[1:0] to FCOUT)

Operands to PFU Out (Kz[1:0] to F[7:0])

Bitwise Operands to PFU Out (Kz[1:0] to F[z])

Fast Carry-in to Carry-out (FCIN to COUT)

Fast Carry-in to Fast Carry-out (FCIN to FCOUT)

Carry-in to Carry-out (CIN to COUT)

Carry-in to Fast Carry-out (CIN to FCOUT)

Fast Carry-in PFU Out (FCIN to F[7:0])

Carry-in PFU Out (CIN to F[7:0])

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

Add/Subtract to Carry-out (ASWE to FCOUT)

Add/Subtract to PFU Out (ASWE to F[7:0])

RIPCO_DEL

RIPFCO_DEL

RIP_DEL

FRIP_DEL

FCINCO_DEL

FCINFCO_DEL

CINCO_DEL

CINFCO_DEL

FCIN_DEL

CIN_DEL

ASCO_DEL

ASFCO_DEL

AS_DEL

—

5.32

5.30

7.37

2.34

2.59

2.57

3.47

3.46

6.03

6.91

8.28

8.11

10.66

—

4.11

4.10

5.60

1.80

1.99

1.98

2.65

2.64

4.55

5.21

5.89

5.78

7.55

—

2.98

4.18

1.32

1.43

1.41

1.79

1.78

3.21

3.53

4.58

4.48

5.85

—

2.32

3.10

1.05

1.14

1.13

1.43

2.51

3.05

3.45

3.38

4.38

Half Ripple Delays (nibble wide):

Operands to Carry-out (Kz[1:0] to COUT)

Operands to Fast Carry-out (Kz[1:0] to FCOUT)

Operands to PFU Out (Kz[1:0] to F[3:0])

Bitwise Operands to PFU Out (Kz[1:0] to F[z])

Fast Carry-in to Carry-out (FCIN to COUT)

Fast Carry-in to Fast Carry-out (FCIN to FCOUT)

Carry-in to Carry-out (CIN to COUT)

Carry-in to Carry-out (CIN to FCOUT)

Fast Carry-in PFU Out (FCIN to F[3:0])

Carry-in PFU Out (CIN to F[3:0])

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

Add/Subtract to Carry-out (ASWE to FCOUT)

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

HRIPCO_DEL

HRIPFCO_DEL

HRIP_DEL

HFRIP_DEL

HFCINCO_DEL

HFCINFCO_DEL

HCINCO_DEL

HCINFCO_DEL

HFCIN_DEL

HCIN_DEL

HASCO_DEL

HASFCO_DEL

HAS_DEL

—

5.32

5.30

5.50

2.34

2.59

2.57

3.47

3.46

3.76

4.65

8.28

8.11

9.12

—

4.11

4.10

4.07

1.80

1.99

1.98

2.65

2.64

2.84

3.50

5.89

5.78

6.49

—

2.98

3.20

1.32

1.43

1.41

1.79

1.78

2.01

2.33

4.58

4.48

4.86

—

2.32

2.40

1.05

1.14

1.13

1.43

1.58

2.12

3.45

3.38

3.69

Note: The table shows worst-case delay for the ripple chain. ORCA Foundry reports the delay for individual paths within the ripple chain that will

be less than or equal to those listed above.

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