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1024EA Datasheet, PDF (6/13 Pages) Lattice Semiconductor – In-System Programmable High Density PLD | |||
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Specifications ispLSI 1024EA
External Timing Parameters
Over Recommended Operating Conditions
PARAMETER TEST 4 #2
COND.
DESCRIPTION1
-200
-125
-100
UNITS
MIN. MAX. MIN. MAX. MIN. MAX.
tpd1
A
tpd2
A
fmax (Int.) A
fmax (Ext.) â
fmax (Tog.) â
tsu1
â
1 Data Propagation Delay, 4PT Bypass, ORP Bypass â 4.5 â 7.5 â 10.0 ns
2 Data Propagation Delay, Worst Case Path
â 6.0 â 10.0 â 12.5 ns
3 Clock Frequency with Internal Feedback 3
200
4
Clock
Frequency
with
External
Feedback
(1
tsu2 +
) tco1
143
5
Clock
Frequency,
Max.
Toggle
(
1
twh +
twl
)
250
6 GLB Reg. Setup Time before Clock,4 PT Bypass 3.0
â 125
â 100
â 167
â 4.5
â 100
â 77
â 125
â 6.0
â MHz
â MHz
â MHz
â ns
tco1
A 7 GLB Reg. Clock to Output Delay, ORP Bypass
â 3.5 â 4.5 â 6.0 ns
th1
â 8 GLB Reg. Hold Time after Clock, 4 PT Bypass
0.0 â 0.0 â 0.0 â ns
tsu2
tco2
th2
tr1
trw1
tptoeen
tptoedis
tgoeen
tgoedis
twh
twl
â 9 GLB Reg. Setup Time before Clock
3.5 â 5.5 â 7.0 â ns
â 10 GLB Reg. Clock to Output Delay
â 4.0 â 5.5 â 7.0 ns
â 11 GLB Reg. Hold Time after Clock
0.0 â 0.0 â 0.0 â ns
A 12 Ext. Reset Pin to Output Delay
â 5.5 â 10.0 â 13.5 ns
â 13 Ext. Reset Pulse Duration
3.5 â 5.0 â 6.5 â ns
B 14 Input to Output Enable
â 7.0 â 12.0 â 15.0 ns
C 15 Input to Output Disable
â 7.0 â 12.0 â 15.0 ns
B 16 Global OE Output Enable
â 4.5 â 7.0 â 9.0 ns
C 17 Global OE Output Disable
â 4.5 â 7.0 â 9.0 ns
â 18 External Synchronous Clock Pulse Duration, High 2.0 â 3.0 â 4.0 â ns
â 19 External Synchronous Clock Pulse Duration, Low 2.0 â 3.0 â 4.0 â ns
tsu3
â 20 I/O Reg. Setup Time before Ext. Sync Clock (Y2, Y3) 3.0 â 3.0 â 3.5 â ns
th3
â 21 I/O Reg. Hold Time after Ext. Sync. Clock (Y2, Y3) 0.0 â 0.0 â 0.0 â ns
1.
Unless noted otherwise, all parameters use a GRP load of four GLBs, 20 PTXOR path, ORP and Y0 clock.
Table 2-0030A/1024EA
v.2.5
2. Refer to Timing Model in this data sheet for further details.
3. Standard 16-bit counter using GRP feedback.
4. Reference Switching Test Conditions section.
6
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