参数资料
型号: QL5822-33APT280C
厂商: QUICKLOGIC CORP
元件分类: 总线控制器
英文描述: PCI BUS CONTROLLER, PBGA280
封装: 17 X 17 MM, 1.50 MM HEIGHT, 0.80 MM PITCH, PLASTIC, MO-205, LFBGA-280
文件页数: 35/76页
文件大小: 1128K
代理商: QL5822-33APT280C
2007 QuickLogic Corporation
QL58x2 Enhanced QuickPCI Family Data Sheet Rev. L
40
Figure 38: RAM Cell Synchronous and Asynchronous Read Timing
Table 24: RAM Cell Synchronous and Asynchronous Read Timing
Symbol
Parameter
Value
Min
Max
RAM Cell Synchronous Read Timing
t
SRA
RA setup time to RCLK: time the READ ADDRESS must be stable before the
active edge of the READ CLOCK
0.43 ns
-
tHRA
RA hold time to RCLK: time the READ ADDRESS must be stable after the active
edge of the READ CLOCK
0 ns
-
tSRE
RE setup time to WCLK: time the READ ENABLE must be stable before the
active edge of the READ CLOCK
0.21 ns
-
t
HRE
RE hold time to WCLK: time the READ ENABLE must be stable after the active
edge of the READ CLOCK
0 ns
-
tRCRD
RCLK to RD: time between the active READ CLOCK edge and the time when the
data is available at RD
-
2.25 ns
RAM Cell Asynchronous Read Timing
rPDRD
RA to RD: time between when the READ ADDRESS is input and when the DATA
is output
-
1.99 ns
tSRA
tHRA
RCLK
RA
tSRE
tHRE
tRCRD
old data
new data
RE
RD
rPDRD
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