LC4256ZE-B-EVN Lattice, LC4256ZE-B-EVN Datasheet - Page 41

• Manufacturer Part Number: LC4256ZE-B-EVN
• Description: Programmable Logic Development Tools ispMACH 4256ZE Breakout Board
• Manufacturer: Lattice
• Series: ispMACH®r
• Type: CPLDr

Specifications of LC4256ZE-B-EVN

• Contents: Board, Cable
• Lead Free Status / Rohs Status: Details
• For Use With/related Products: LC4256ZE-5TN144C

Lattice Semiconductor
Switching Test Conditions
Figure 12 shows the output test load that is used for AC testing. The specific values for resistance, capacitance,
voltage, and other test conditions are shown in Table 11.
Figure 12. Output Test Load, LVTTL and LVCMOS Standards
Table 11. Test Fixture Required Components
LVCMOS I/O, (L -> H, H -> L)
LVCMOS I/O (Z -> H)
LVCMOS I/O (Z -> L)
LVCMOS I/O (H -> Z)
LVCMOS I/O (L -> Z)
1. C
L
includes test fixtures and probe capacitance.
Test Condition
DUT
106 106
106
106
R


1
106
106
R


2
V
R 1
R 2
41
CCO
35pF
35pF
35pF
5pF
5pF
C
L
ispMACH 4000V/B/C/Z Family Data Sheet
1
C L
LVCMOS 3.3 = 1.5V
LVCMOS 2.5 = V
LVCMOS 1.8 = V
1.5V
1.5V
V
V
OH
OL
+ 0.3
- 0.3
0213A/ispm4k
Timing Ref.
Point
Test
CCO
CCO
/2
/2
LVCMOS 3.3 = 3.0V
LVCMOS 2.5 = 2.3V
LVCMOS 1.8 = 1.65V
3.0V
3.0V
3.0V
3.0V
V
CCO