5
Specifications ispLSI 2064E
External Timing Parameters
Over Recommended Operating Conditions
tpd1
UNITS
-200
MIN.
TEST
COND.
1. Unless noted otherwise, all parameters use a GRP load of four GLBs, 20 PTXOR path, ORP and Y0 clock.
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.
Table 2-0030A/2064E
1
tsu2 + tco1
(
)
-135
MIN.
MAX.
DESCRIPTION
#
2
4
PARAMETER
A
1
Data Prop Delay, 4PT Bypass, ORP Bypass
–
4.5
–
7.5
ns
tpd2
A
2
Data Prop Delay
–
ns
fmax
A
3
Clk Freq with Internal Feedback3
200
–
135
–
MHz
fmax (Ext.)
–
4
Clk Freq with External Feedback
–
MHz
fmax (Tog.)
–
5
Clk Frequency, Max. Toggle
–
MHz
tsu1
–
6
GLB Reg Setup Time before Clk, 4 PT Bypass
–
ns
tco1
A
7
GLB Reg Clk to Output Delay, ORP Bypass
–
ns
th1
–
8
GLB Reg Hold Time after Clk, 4 PT Bypass
0.0
–
ns
tsu2
–
9
GLB Reg Setup Time before Clk
4.5
–
ns
tco2
–
10 GLB Reg Clk to Output Delay
–
ns
th2
–
11 GLB Reg Hold Time after Clk
0.0
–
ns
tr1
A
12 External Reset Pin to Output Delay
–
ns
trw1
–
13 External Reset Pulse Duration
3.5
–
ns
tptoeen
B
14 Input to Output Enable
–
ns
tptoedis
C
15 Input to Output Disable
–
ns
tgoeen
B
16 Global OE Output Enable
–
ns
tgoedis
C
17 Global OE Output Disable
–
ns
twh
–
18 External Synch Clk Pulse Duration, High
2.5
–
ns
twl
–
19 External Synch Clk Pulse Duration, Low
2.5
–
ns
133
200
3.5
3.0
–
3.5
–
6.0
–
8.0
4.0
7.0
100
143
5.0
0.0
6.0
0.0
5.0
3.5
10.0
4.0
4.5
10.0
12.0
7.0
-100
MIN. MAX.
–
10.0
–
100
–
0.0
8.0
–
0.0
–
6.5
–
5.0
–
5.0
–
77
100
6.5
5.0
–
6.0
–
13.5
–
15.0
9.0
13.0