參數(shù)資料
型號: LC4512Z
廠商: Lattice Semiconductor Corporation
英文描述: 3.3V/2.5V/1.8V In-System Programmable SuperFAST High density PDLs
中文描述: 3.3V/2.5V/1.8V在系統(tǒng)可編程超快高密度PDLs
文件頁數(shù): 23/91頁
文件大小: 851K
代理商: LC4512Z
Lattice Semiconductor
ispMACH 4000V/B/C/Z Family Data Sheet
23
ispMACH 4000V/B/C External Switching Characteristics (Cont.)
Over Recommended Operating Conditions
Parameter
Description
1, 2, 3
-5
-75
-10
Units
Min.
Max.
Min.
Max.
Min.
Max.
t
PD
t
PD_MC
t
S
t
ST
t
SIR
t
SIRZ
t
H
t
HT
t
HIR
5-PT bypass combinatorial propagation delay
5.0
7.5
10.0
ns
20-PT combinatorial propagation delay through macrocell
5.5
8.0
10.5
ns
GLB register setup time before clock
3.0
4.5
5.5
ns
GLB register setup time before clock with T-type register
3.2
4.7
5.5
ns
GLB register setup time before clock, input register path
1.2
1.7
1.7
ns
GLB register setup time before clock with zero hold
2.2
2.7
2.7
ns
GLB register hold time after clock
0.0
0.0
0.0
ns
GLB register hold time after clock with T-type register
0.0
0.0
0.0
ns
GLB register hold time after clock, input register path
1.0
1.0
1.0
ns
t
HIRZ
GLB register hold time after clock, input register path with
zero hold
0.0
0.0
0.0
ns
t
CO
t
R
t
RW
t
PTOE/DIS
t
GPTOE/DIS
t
GOE/DIS
t
CW
GLB register clock-to-output delay
3.4
4.5
6.0
ns
External reset pin to output delay
6.3
9.0
10.5
ns
External reset pulse duration
2.0
4.0
4.0
ns
Input to output local product term output enable/disable
7.0
9.0
10.5
ns
Input to output global product term output enable/disable
9.0
10.3
12.0
ns
Global OE input to output enable/disable
5.0
7.0
8.0
ns
Global clock width, high or low
2.2
3.3
4.0
ns
t
GW
Global gate width low (for low transparent) or high (for
high transparent)
2.2
3.3
4.0
ns
t
WIR
f
MAX
f
MAX
(Ext.) Clock frequency with external feedback, [1/ (t
S
+ t
CO
)]
1. Timing numbers are based on default LVCMOS 1.8 I/O buffers. Use timing adjusters provided to calculate other standards.
2. Measured using standard switching circuit, assuming GRP loading of 1 and 1 output switching.
3. Pulse widths and clock widths less than minimum will cause unknown behavior.
4. Standard 16-bit counter using GRP feedback.
Input register clock width, high or low
2.2
3.3
4.0
ns
4
Clock frequency with internal feedback
227
168
125
MHz
156
111
86
MHz
Timing v.3.2
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