Specifications GAL6002
AC Switching Characteristics
Over Recommended Operating Conditions
TEST
PARAM. COND1.
DESCRIPTION
tpd1
A
Combinatorial Input to Combinatorial Output
tpd2
A
Feedback or I/O to Combinational Output
tpd3
A
Transparent Latch Input to Combinatorial Output
tco1
A
Input Latch ICLK to Combinatorial Output Delay
tco2
A
Input Reg. ICLK to Combinatorial Output Delay
tco3
A
Output D/E Reg. OCLK to Output Delay
tco4
A
Output D Reg. Sum Term CLK to Output Delay
tcf12
—
Output D/E Reg. OCLK to Buried Feedback Delay
tcf22
—
Output D Reg. STCLK to Buried Feedback Delay
tsu1 — Setup Time, Input before Input Latch ICLK
tsu2 — Setup Time, Input before Input Reg. ICLK
tsu3 — Setup Time, Input or Fdbk before D/E Reg. OCLK
tsu4 — Setup Time, Input or Fdbk before D Reg. Sum Term CLK
tsu5 — Setup Time, Input Reg. ICLK before D/E Reg. OCLK
tsu6 — Setup Time, Input Reg. ICLK before D Reg. Sum Term CLK
th1
— Hold Time, Input after Input Latch ICLK
th2
— Hold Time, Input after Input Reg. ICLK
th3
— Hold Time, Input or Feedback after D/E Reg. OCLK
th4
— Hold Time, Input or Feedback after D Reg. Sum Term CLK
fmax13 — Max. Clock Frequency w/External Feedback, 1/(tsu3+tco3)
fmax23 — Max. Clock Frequency w/External Feedback, 1/(tsu4+tco4)
fmax33 — Max. Clock Frequency w/Internal Feedback, 1/(tsu3+tcf1)
fmax43 — Max. Clock Frequency w/Internal Feedback, 1/(tsu4+tcf2)
fmax53 — Max. Clock Frequency w/No Feedback, OCLK
fmax63 — Max. Clock Frequency w/No Feedback, STCLK
twh1 — ICLK Pulse Duration, High
twh2 — OCLK Pulse Duration, High
twh3 — STCLK Pulse Duration, High
1) Refer to Switching Test Conditions section.
2) Calculated from fmax with internal feedback. Refer to fmax Description section.
3) Refer to fmax Description section.
COM
COM
-15
-20
UNITS
MIN. MAX. MIN. MAX.
— 15 — 20 ns
— 15 — 20 ns
— 18 — 23 ns
— 20 — 25 ns
— 20 — 25 ns
— 6.5 — 8 ns
— 18 — 20 ns
— 3.6 — 7 ns
— 10.1 — 13 ns
1.5 — 2 — ns
1.5 — 2 — ns
11.5 — 13 — ns
5 — 7 — ns
15 — 20 — ns
7 — 9 — ns
3 — 4 — ns
3 — 4 — ns
0 — 0 — ns
4 — 6 — ns
55.5 — 47.6 — MHz
43.4 — 37 — MHz
66 — 50 — MHz
66 — 50 — MHz
75 — 60 — MHz
70 — 60 — MHz
6 — 7 — ns
6 — 7 — ns
7 — 8 — ns
9