参数资料
型号: M4A5-96/48-12VNI
厂商: Lattice Semiconductor Corporation
文件页数: 11/62页
文件大小: 0K
描述: IC CPLD 96MACRO 100TQFP
标准包装: 450
系列: ispMACH® 4A
可编程类型: 系统内可编程
最大延迟时间 tpd(1): 12.0ns
电压电源 - 内部: 4.5 V ~ 5.5 V
宏单元数: 64
输入/输出数: 48
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 100-LQFP
供应商设备封装: 100-TQFP(14x14)
包装: 托盘
ispMACH 4A Family
19
PAL Block Clock Generation
Each ispMACH 4A device has four clock pins that can also be used as inputs. These pins drive a clock
generator in each PAL block (Figure 14). The clock generator provides four clock signals that can be used
anywhere in the PAL block. These four PAL block clock signals can consist of a large number of
combinations of the true and complement edges of the global clock signals. Table 14 lists the possible
combinations.
1. M4A(3,5)-32/32 and M4A(3,5)-64/32 have only two clock pins, GCLK0 and GCLK1. GCLK2 is tied to GCLK0, and GCLK3 is tied to GCLK1.
Note:
1. Values in parentheses are for the M4A(3,5)-32/32 and M4A(3,5)-64/32.
This feature provides high flexibility for partitioning state machines and dual-phase clocks. It also allows
latches to be driven with either polarity of latch enable, and in a master-slave configuration.
Table 14. PAL Block Clock Combinations1
Block CLK0
Block CLK1
Block CLK2
Block CLK3
GCLK0
GCLK1
GCLK0
GCLK1
X
GCLK1
GCLK0
X
GCLK2 (GCLK0)
GCLK3 (GCLK1)
GCLK2 (GCLK0)
GCLK3 (GCLK1)
X
GCLK3 (GCLK1)
GCLK2 (GCLK0)
GCLK0
GCLK1
GCLK2
GCLK3
Block CLK0
(GCLK0 or GCLK1)
Block CLK1
(GCLK1 or GCLK0)
Block CLK2
(GCLK2 or GCLK3)
Block CLK3
(GCLK3 or GCLK2)
17466G-004
Figure 14. PAL Block Clock Generator 1
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