參數(shù)資料
型號: UCB1500
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: PCI to AC97 bridge/host controller
中文描述: PCI BUS CONTROLLER, PQFP80
封裝: 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-315-1, LQFP-80
文件頁數(shù): 49/58頁
文件大?。?/td> 1001K
代理商: UCB1500
Philips Semiconductors
UCB1500
PCI to AC97 bridge/host controller
Objective specification
Rev. 01 — 4 February 2000
49 of 58
9397 750 06854
Philips Electronics N.V. 2000. All rights reserved.
13.3 EEPROM clock timing
13.4 EEPROM timing parameters
14. System timing
Table 77: EEPROM clock timing
Symbol
Parameter
EEPCLK frequency
T
low
EEPCLK HIGH time
T
high
EEPCLK LOW time
T
pelh
PCI clock rising edge to EEPCLK rising edge
T
pehl
PCI clock rising edge to EEPCLK falling edge
Min
0
3.7
3
Max
129
Unit
kHz
μ
s
μ
s
ns
ns
8.03
7.75
Table 78: EEPROM timing parameters
Symbol
Parameter
T
SU;STA
Start condition setup time
T
SU;STO
Stop condition setup time
T
HD;STA
Start condition hold time
T
HD;STO
Stop condition hold time
T
SU;DAT
Data in setup time
T
HD;DAT
Data in hold time
T
HD
Data out hold time
T
AA
Clock to output
T
WR
Write cycle time
Min
3.7
3.7
3
3
250
0
0
0.3
Max
Unit
μ
s
μ
s
μ
s
μ
s
ns
ns
ns
μ
s
ms
3.5
10
Fig 6.
3.3 V clock waveform
T_high
T_low
T_cyc
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