Datasheet

Electrical Specifications
80 Datasheet, Volume 1
Notes:
1. Unless otherwise noted, all specifications in this table apply to all processor frequencies.
2. The V
TT
referred to in these specifications refers to instantaneous V
TT
.
3. For V
IN
between 0 V and V
TT
. Measured when the driver is tristated.
4. V
IH
and V
OH
may experience excursions above V
TT
. However, input signal drivers must comply with the signal quality
specifications.
5. COMP resistance must be provided on the system board with 1% resistors. COMP resistors are to V
SS
.
6. R
SYS_TERM
is the system termination on the signal.
Table 7-11. Control Sideband and TAP Signal Group DC Specifications
Symbol Alpha Group Parameter Min Typ Max Units Notes
1
V
IL
(m),(n),(p),(s) Input Low Voltage — — 0.64
*
V
TT
V2
V
IH
(m),(n),(p),(s) Input High Voltage 0.76
*
V
TT
—— V2,4
V
IL
(g) Input Low Voltage — — 0.25
*
V
TT
V2
V
IH
(g) Input High Voltage 0.80
*
V
TT
—— V2,4
V
IL
(ga) Input Low Voltage — — 0.4 V
V
IH
(ga) Input High Voltage 0.75 — — V
V
IL
(qa) Input Low Voltage — — 0.38
*
V
TT
V2
V
IH
(qa) Input High Voltage 0.70
*
V
TT
—— V2,4,
V
IL
(ja),(qb) Input Low Voltage — — 0.25
*
V
TT
V2
V
IH
(ja),(qb) Input High Voltage 0.75
*
V
TT
—— V2,4
V
IL
(jb) Input Low Voltage — — 0.29 V 2
V
IH
(jb) Input High Voltage 0.87 — — V 2,4
V
OL
(k),(l),(n),(p),
(r),(s),(ab),(h),(i)
Output Low Voltage — —
V
TT
* R
ON
/
(R
ON
+
R
SYS_TERM
)
V2,6
V
OH
(k),(l),(n),(p),(r),(s),
(ab),(i)
Output High Voltage V
TT
—— V2,4
R
ON
(ab) Buffer on Resistance 20 — 45 
I
LI
(ja),(jb),(m),(n),(p),(qa),
(s),(t),(aa),(g)
Input Leakage Current — — ±200 A3
I
LI
(qb) Input Leakage Current — — ±150 A3
COMP0 (t) COMP Resistance 49.4 49.9 50.4  5
COMP1 (t) COMP Resistance 49.4 49.9 50.4  5
COMP2 (t) COMP Resistance 19.8 20 20.2  5
COMP3 (t) COMP Resistance 19.8 20 20.2  5