Specifications ispLSI 3256A
Internal Timing Parameters1
Over Recommended Operating Conditions
PARAMETER #2
DESCRIPTION
Outputs
tob
tobs
46 Output Buffer Delay
47 Output Buffer Delay, Slew Limited Adder
toen
48 I/O Cell OE to Output Enabled
todis
49 I/O Cell OE to Output Disabled
Clocks
tgy0/1/2
50 Clock Delay, Y0 or Y1 or Y2 to Global GLB Clock Line
tioy3/4
51 Clock Delay, Y3 or Y4 to I/O Cell Global Clock Line
Global Reset
tgr
52 Global Reset to GLB and I/O Registers
tgoe
ttoe
53 Global OE Pad Buffer
54 Test OE Pad Buffer
1. Internal Timing Parameters are not tested and are for reference only.
2. Refer to Timing Model in this data sheet for further details.
-90
-70
-50
UNITS
MIN. MAX. MIN. MAX. MIN. MAX.
– 1.9 – 2.4 – 3.3 ns
– 11.9 – 12.4 – 13.3 ns
– 6.8 – 7.2 – 9.8 ns
– 6.8 – 7.2 – 9.8 ns
2.7 2.7 3.6 3.6 4.9 4.9 ns
0.7 3.7 1.2 5.2 1.6 7.0 ns
– 6.7 – 7.1 – 9.6 ns
– 2.3 – 2.8 – 3.7 ns
– 3.2 – 9.8 – 13.2 ns
Table 2-0037C/3256A
8