参数资料
型号: EP20K30EQC208-1
厂商: Altera
文件页数: 88/117页
文件大小: 0K
描述: IC APEX 20KE FPGA 300K 208-PQFP
标准包装: 24
系列: APEX-20K®
LAB/CLB数: 120
逻辑元件/单元数: 1200
RAM 位总计: 24576
输入/输出数: 125
门数: 113000
电源电压: 1.71 V ~ 1.89 V
安装类型: 表面贴装
工作温度: 0°C ~ 85°C
封装/外壳: 208-BFQFP
供应商设备封装: 208-PQFP(28x28)
72
Altera Corporation
APEX 20K Programmable Logic Device Family Data Sheet
Figure 40. Synchronous Bidirectional Pin External Timing
Notes to Figure 40:
(1)
The output enable and input registers are LE registers in the LAB adjacent to a
bidirectional row pin. The output enable register is set with “Output Enable
Routing= Signal-Pin” option in the Quartus II software.
(2)
The LAB adjacent input register is set with “Decrease Input Delay to Internal Cells=
Off”. This maintains a zero hold time for lab adjacent registers while giving a fast,
position independent setup time. A faster setup time with zero hold time is possible
by setting “Decrease Input Delay to Internal Cells= ON” and moving the input
register farther away from the bidirectional pin. The exact position where zero hold
occurs with the minimum setup time, varies with device density and speed grade.
Table 31 describes the fMAX timing parameters shown in Figure 36 on
PRN
CLRN
DQ
PRN
CLRN
DQ
(1)
IOE Register
Bidirectional Pin
Dedicated
Clock
PRN
CLRN
DQ
(1)
XZBIDIR
t
ZXBIDIR
t
OUTCOBIDIR
t
INSUBIDIR
t
INHBIDIR
t
OE Register
Output IOE Register
Input Register
(2)
Table 31. APEX 20K fMAX Timing Parameters
(Part 1 of 2)
Symbol
Parameter
tSU
LE register setup time before clock
tH
LE register hold time after clock
tCO
LE register clock-to-output delay
tLUT
LUT delay for data-in
tESBRC
ESB Asynchronous read cycle time
tESBWC
ESB Asynchronous write cycle time
tESBWESU
ESB WE setup time before clock when using input register
tESBDATASU
ESB data setup time before clock when using input register
tESBDATAH
ESB data hold time after clock when using input register
tESBADDRSU
ESB address setup time before clock when using input registers
tESBDATACO1
ESB clock-to-output delay when using output registers
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