参数资料
型号: GP2021
厂商: Mitel Networks Corporation
英文描述: GPS 12 channel Correlator Advance Information
中文描述: 全球定位系统12通道相关器研究进展信息
文件页数: 47/62页
文件大小: 372K
代理商: GP2021
51
GP2021
EEPROM/SPARE data
D<15:0>
NRD
MCLK
NEEPROM/NSPARE_CS
A<22:20>
DBE
neeLmcL
nrdLmcL
adVneeL
nrdHdbH
mcLnrdH
A<9:0>
Fig. 32 : Intel 486 mode write (NARMSYS = 1, NINTELMOT = 0, WRPROG = !)
Timing Parameter Description
Symbol
Min
Max
Units
Notes
ALE_IP High to WREN and NCS Low setup time
τ
alHwcL
5ns
ALE_IP High to ALE_IP Low pulse width
τ
alHalL
13
ns
ALE_IP Low to WREN or NCS High pulse width
τ
alLwcH
10
ns
1
WREN and NCS Low to WREN or NCS High pulse width
τ
wcLwcH
10
ns
WREN or NCS High to ALE_IP High hold–off time
τ
wcHalH
5ns
Address Valid to ALE_IP Low setup time
τ
adValL
9ns
ALE_IP Low to Address Invalid hold time
τ
alLadI
8ns
Data Valid to WREN or NCS High setup time
τ
daVwcH
7ns
WREN or NCS High to Data Invalid hold time
τ
wcHdaI
5ns
Note: 1 Write inhibited until ALE_IP falling edge.
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