参数资料
型号: IDT88P8342BHGI
厂商: IDT, Integrated Device Technology Inc
文件页数: 85/98页
文件大小: 0K
描述: IC SPI3-SPI4 EXCHANGE 820-PBGA
标准包装: 24
系列: *
其它名称: 88P8342BHGI
86
IDT88P8342 SPI EXCHANGE 2 x SPI-3 TO SPI-4
INDUSTRIALTEMPERATURERANGE
APRIL 10, 2006
Figure 38. Microprocessor parallel port Motorola write timing diagram
6370 drw08
Valid Address
DSB + CSB
R/WB
Valid Data
tRecovery
ADD[5:0]
Write DBUS[7:0]
tRWH
tDW
tWC
tRWV
tAH
tAV
tDV
tDHW
Write cycle specification Motorola non-multiplexed (MPM=0)
Symbol
Parameter
MIN
MAX
Unit
T
Internal main clock period (MCLK)
80
100
MHz
tWC
Writecycletime
2.5T+17
ns
tDW
Valid DSB width
2.5T+12
ns
tRWV
Delay from DSB to valid write signal
T/2-4
ns
tRWH
R/WB to DSB hold time
2.5T+12
ns
tAV
Delay from DSB to Valid Address
T/2-4
ns
tAH
Address to DSB hold time
2.5T+12
ns
tDV
Delay from DSB to valid write data
T/2-4
ns
tDHW
Write data to DSB hold time
2.5T+12
ns
tRecovery Recovery time from write cycle
5
ns
TABLE 139 – MICROPROCESSOR PARALLEL PORT MOTOROLA WRITE TIMING
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