Intel LF80537GG0252M Datasheet download pdf (Page 48)

Electrical Specifications

48 Datasheet

NOTES:

1. Unless otherwise noted, all specifications in this table apply to all processor frequencies.

2. V

is defined as the maximum voltage level at a receiving agent that will be interpreted as a logical low

value.

3. V

is defined as the minimum voltage level at a receiving agent that will be interpreted as a logical high

value.

4. V

and V

may experience excursions above V

CCP

. However, input signal drivers must comply with the

signal quality specifications.

5. This is the pulldown driver resistance. Measured at 0.31*V

CCP

. R

(min) = 0.418*R

, R

(typ) =

0.455*R

(max) = 0.527*R

. R

typical value of 55 Ω is used for R

typ/min/max calculations.

6. GTLREF should be generated from V

CCP

with a 1% tolerance resistor divider. The V

CCP

referred to in these

specifications is the instantaneous V

CCP

7. R

is the on-die termination resistance measured at V

of the AGTL+ output driver. Measured at

0.31*V

CCP

. R

is connected to V

CCP

on die. Refer to processor I/O buffer models for I/V characteristics.

8. Specified with on-die R

and R

turned off. Vin between 0 and V

CCP

9. Cpad includes die capacitance only. No package parasitics are included.

10. This is the external resistor on the comp pins.

11. On-die termination resistance, measured at 0.33*V

CCP

12. Applies to Signals A[35:3].

13. Applies to Signals D[63:0].

14. Applies to Signals BPRI#, DEFER#, PREQ#, PREST#, RS[2:0]#, TRDY#, ADS#, BNR#, BPM[3:0], BR0#,

DBSY#, DRDY#, HIT#, HITM#, LOCK#, PRDY#, DPWR#, DSTB[1:0]#, DSTBP[3:0] and DSTBN[3:0]#.

Table 13. AGTL+ Signal Group DC Specifications

Symbol Parameter Min Typ Max Unit Notes

CCP

I/O Voltage 1.00 1.05 1.10 V

GTLREF Reference Voltage 0.65 0.70 0.72 V 6

COMP

Compensation Resistor 27.23 27.5 27.78 Ω 10

ODT/A

Termination Resistor Address 49 55 63 Ω 11, 12

ODT/D

Termination Resistor Data 49 55 63 Ω 11, 13

ODT/Cntrl

Termination Resistor Control 49 55 63 Ω 11, 14

Input High Voltage 0.82 1.05 1.20 V 3,6

Input Low Voltage -0.10 0 0.55 V 2,4

Output High Voltage 0.90 V

CCP

1.10 V 6

TT/A

Termination Resistance Address 50 55 61 Ω 7, 12

TT/D

Termination Resistance Data 50 55 61 Ω 7, 13

TT/Cntrl

Termination Resistance Control 50 55 61 Ω 7, 14

ON/A

Buffer On Resistance Address 23 25 29 Ω 5, 12

ON/D

Buffer On Resistance Data 23 25 29 Ω 5, 13

ON/Cntrl

Buffer On Resistance Control 23 25 29 Ω 5, 14

Input Leakage Current — — ± 100 µA 8

Cpad Pad Capacitance 1.80 2.30 2.75 pF 9

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 112 113

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Intel LF80537GG0252M Datasheet Page 48

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