Specifications ispLSI 5512VA
External Switching Characteristics
Over Recommended Operating Conditions
TEST3
COND.
-110
-100
-70
DESCRIPTION 4,5
UNITS
PARAM.
#
MIN. MAX. MIN. MAX. MIN. MAX.
6
A
A
1 Data Prop. Delay, 5PT Bypass
—
—
110
91
143
6
8.5
10
—
—
—
—
4
—
—
100
69
125
8
10
13
—
—
—
—
5.5
—
—
—
—
—
70
45
83
12
—
0
15
19
—
—
—
—
8
ns
ns
t
t
f
f
f
t
t
t
t
t
pd1
6
2 Data Propagation Delay
pd2
A
3 Clock Frequency with Internal Feedback1
4 Clock Freq. with Ext. Feedback,1/(tsu2 + tco1)
5 Clock Frequency, Max Toggle2
MHz
MHz
MHz
ns
max
—
—
—
A
max (Ext.)
max (Tog.)
su1
6 GLB Reg. Setup Time before Clk, 5PT bypass
7 GLB Reg. Clock to Output Delay
6
—
0
—
0
ns
co1
—
—
—
8 GLB Reg. Hold Time after Clock, 5PT bypass
9 GLB Reg. Setup Time before Clock
10 GLB Reg. Hold Time after Clock
—
—
—
—
—
—
ns
h1
7
9
14
0
ns
su2
h2
0
0
ns
GLB Reg. Setup Time before Clock, Input Reg.
Path (CLK0/1)
—
—
—
—
11
4.5
3.5
0
—
—
—
—
6
5
0
0
—
—
—
—
9
7
0
0
—
—
—
—
ns
ns
ns
ns
tsu3 (CLK0/1)
tsu3 (CLK2/3)
th3 (CLK0/1)
th3 (CLK2/3)
GLB Reg. Setup Time before Clock, Input Reg.
Path (CLK2/3)
12
GLB Reg. Hold Time after Clock, Input Reg. Path
(CLK0/1)
13
GLB Reg. Hold Time after Clock, Input Reg. Path
(CLK2/3)
14
0
A
15 Ext. Reset Pin to Output Delay
16 Ext. Reset Pulse Duration
—
7.5
—
17
—
—
9
20
—
12
24
8
—
14
—
—
—
6
30
—
18
30
12
—
—
ns
ns
ns
ns
ns
ns
ns
t
t
t
t
t
t
t
r1
—
rw1
B/C 17 Local Product Term Output Enable/Disable
B/C 18 Global Product Term Output Enable/Disable
B/C 19 Global OE Input to Output Enable/Disable
10
20
6.5
—
—
—
—
4
ptoe/dis
gptoe/dis
goe/dis
wh
—
—
—
—
20 Ext. Sync. Clock Pulse Duration, High
21 Ext. Sync. Clock Pulse Duration, Low
3.5
3.5
—
—
—
4
6
wl
1. Standard 32-bit counter using GRP feedback.
2. fmax (Toggle) may be less than 1/(twh + twl). This is to allow for a clock duty cycle of other than 50%.
3. Reference Switching Test Conditions section.
4. Unless noted otherwise, all timing numbers are taken with worst case PTSA fanout, a GRP load of 1 GLB, and CLK0.
5. Timing parameters measured using normal active output driver.
6. The delay parameters are measured with Vcc as I/O voltage reference. An additional 0.5ns delay is incurred when Vccio is
used as I/O voltage reference.
Timing Ext.5512VA/4.0.eps
13
LATTICE [ LATTICE SEMICONDUCTOR ]
