Specifications GAL16V8
13
tpd
A
Input or I/O to Comb. Output
3
10
3
15
3
20
3
25
ns
tco
A
Clock to Output Delay
2
7
2
10
2
11
2
12
ns
tcf2
—
Clock to Feedback Delay
—
6
—
8
—
9
—
10
ns
tsu
—
Setup Time, Input or Fdbk before Clk↑
7.5
—
12
—
13
—
15
—
ns
th
—
Hold Time, Input or Fdbk after Clk↑
0
—
0—
0
—
ns
A
Maximum Clock Frequency with
66.7
—
45.5
—
41.6
—
37
—
MHz
External Feedback, 1/(tsu + tco)
fmax3
A
Maximum Clock Frequency with
71.4
—
50
—
45.4
—
40
—
MHz
Internal Feedback, 1/(tsu + tcf)
A
Maximum Clock Frequency with
83.3
—
62.5
—
50
—
41.6
—
MHz
No Feedback
twh
—
Clock Pulse Duration, High
6
—
8
—
10
—
12
—
ns
twl
—
Clock Pulse Duration, Low
6
—
8
—
10
—
12
—
ns
ten
B
Input or I/O to Output Enabled
1
10
—
15
—
18
—
20
ns
t
B
OE to Output Enabled
1
10
—
15
—
18
—
20
ns
tdis
C
Input or I/O to Output Disabled
1
10
—
15
—
18
—
20
ns
t
C
OE to Output Disabled
1
10
—
15
—
18
—
20
ns
AC Switching Characteristics
Over Recommended Operating Conditions
UNITS
-25
MIN.
MAX.
-20
MIN.
MAX.
-15
MIN.
MAX.
-10
MIN.
MAX.
PARAM.
DESCRIPTION
TEST
COND1.
COM / IND
IND
COM / IND
SYMBOL
PARAMETER
MAXIMUM*
UNITS
TEST CONDITIONS
C
I
Input Capacitance
8
pF
V
CC = 5.0V, VI = 2.0V
C
I/O
I/O Capacitance
8
pF
V
CC = 5.0V, VI/O = 2.0V
*Characterized but not 100% tested.
1) Refer to Switching Test Conditions section.
2) Calculated from fmax with internal feedback. Refer to fmax Descriptions section.
3) Refer to fmax Descriptions section. Characterized but not 100% tested.
Specifications GAL16V8D
Capacitance (T
A = 25°C, f = 1.0 MHz)
ALL
DEVICES
DISCONTINUED