32-Bit High-Performance Superscalar Processor Data Sheet

80960HA/HD/HT
42 Datasheet
4.7 A.C. Specifications
Table 23. 80960Hx A.C. Characteristics (Sheet 1 of 2)
Per conditions in Section 4.2, Operating Conditions on page 37 and Section 4.7.1, AC Test Conditions on page 45.
Symbol Parameter Min Max Units Notes
Input Clock
1, 7
T
F
CLKIN Frequency 80960HA
80960HD
80960HT
16
16
16
40
40
25
MHz
MHz
MHz
T
CLKIN Period
80960HA
80960HD
80960HT
25
25
40
62.5
62.5
62.5
ns
ns
ns
T
CS
CLKIN Period Stability -250 +250 ps
11
T
CH
CLKIN High Time 8 ns 11
T
CL
CLKIN Low Time 80960HA
80960HD
80960HT
8
8
8
ns
ns
ns
11
T
CR
CLKIN Rise Time 0 4 ns 11
T
CF
CLKIN Fall Time 0 4 ns 11
Synchronous Outputs
1, 2, 3, 6
T
OV1
, T
OH1
Output Valid Delay and Output Hold for all
outputs except DT/R
, BLAST and BREQ for
3.3 V and 5 V inputs and I/Os.
1.5 9.5 ns
T
OV2
, T
OH2
Output Valid Delay and Output Hold for DT/R
80960HA
80960HD
80960HT
T/2 + 1.5
3T/4 + 1.5
5T/6 + 1.5
T/2 + 9.5
3T/4 + 9.5
5T/6 + 9.5
ns
ns
ns
T
OV3
, T
OH3
Output Valid Delay and Output Hold for BLAST
1.5 9 ns
T
OV4
, T
OH4
Output Valid Delay and Output Hold for BREQ 0.5 9 ns
T
OV5
, T
OH5
Output Valid Delay and Output Hold for A3:2 1.5 8.5
T
OF
Output Float for all outputs 1.5 9 ns
11
Synchronous Inputs
1, 7, 8, 9
T
IS1
Input Setup for all inputs except READY
, BTERM,
HOLD, and BOFF
2.5 ns
T
IH1
Input Hold for all inputs except READY
, BTERM,
HOLD, and BOFF
2.5 ns
NOTE: See
Table 24, AC Characteristics Notes on page 44 for all notes related to AC specifications.