參數(shù)資料
型號： pentium III CPU
廠商： Intel Corp.
英文描述： Pentium III Processor for the SC242 at 450MHz to 1.0GHz(SC242工作頻率450MHZ到1GHZ奔III處理器)
中文描述： 奔騰III處理器在450MHz至1.0GHz的（SC242工作頻率至450MHz到1GHz的奔三處理器的SC242）
文件頁數(shù)： 35/102頁
文件大小： 920K
代理商： PENTIUM III CPU
Datasheet
35
Pentium
III Processor for the SC242 at 450 MHz to 1.0 GHz
NOTES:
1. Unless otherwise noted, all specifications in this table apply to all Pentium
III processor frequencies.
2. All AC timings for the TAP signals are referenced to the TCK rising edge at 1.25 V (CPUID 067xh) or 0.75 V
(CPUID 068xh) at the processor core pins. All TAP signal timings (TMS, TDI, etc.) are referenced at 1.25 V
(CPUID 067xh) or 0.75 V (CPUID 068xh) at the processor core pins.
3. These specifications are tested during manufacturing, unless otherwise noted.
4. 1 ns can be added to the maximum TCK rise and fall times for every 1 MHz below 16.667 MHz.
5. Referenced to TCK rising edge.
6. Referenced to TCK falling edge.
7. Valid delay timing for this signal is specified to 2.5 V +5%.
8. Non-Test Outputs and Inputs are the normal output or input signals (besides TCK, TRST#, TDI, TDO, and
TMS). These timings correspond to the response of these signals due to TAP operations.
9. During Debug Port operation, use the normal specified timings rather than the TAP signal timings.
10.Not 100% tested. Specified by design characterization.
11.This specification applies to the Pentium
III processor with CPUID=067xh.
12.This specification applies to the Pentium
III processor with CPUID=068xh.
Table 18. System Bus AC Specifications (TAP Connection) at the Processor Core Pins
1, 2, 3
T# Parameter
Min
Max
Unit
Figure
Notes
T30: TCK Frequency
16.667
MHz
T31: TCK Period
60.0
ns
7
T32: TCK High Time
25.0
25.0
ns
ns
7
7
@1.7 V
10, 11
@V
REF
+ 0.20 V
10, 12
@0.7 V
10, 11
@V
REF
– 0.20 V
10, 12
(0.7 V–1.7 V)
4, 10, 11
(V
REF
– 0.20 V) –
(V
REF
+ 0.20 V)
10, 12
(1.7 V–0.7 V)
4, 10
(V
REF
+ 0.20 V) –
(V
REF
– 0.20 V)
10, 12
Asynchronous
10
T33: TCK Low Time
25.0
25.0
ns
ns
7
7
T34: TCK Rise Time
5.0
5.0
ns
ns
7
7
T35: TCK Fall Time
5.0
5.0
ns
ns
7
7
T36: TRST# Pulse Width
40.0
ns
13
T37: TDI, TMS Setup Time
5.0
ns
12
5
T38: TDI, TMS Hold Time
14.0
ns
12
5
T39: TDO Valid Delay
1.0
10.0
ns
12
6, 7
T40: TDO Float Delay
25.0
ns
12
6, 7, 10
T41: All Non-Test Outputs Valid Delay
2.0
25.0
ns
12
6, 8, 9
T42: All Non-Test Inputs Setup Time
25.0
ns
12
6, 8, 9, 10
T43: All Non-Test Inputs Setup Time
5.0
ns
12
5, 8, 9
T44: All Non-Test Inputs Hold Time
13.0
ns
12
5, 8, 9
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