Specifications ispLSI 8840
Switching Test Conditions
Figure 9. Test Load
Input Pulse Levels
GND to 3.0V
≤ 1.5 ns 10% to 90%
1.5V
Input Rise and Fall Time
Input Timing Reference Levels
Ouput Timing Reference Levels
Output Load
+ 5V
(V
CC
and V
)
CCIO
1.5V
R
1
See Figure 2
Device
Output
Test
Point
Table 2-0003/8840
3-state levels are measured 0.5V from
steady-state active level.
R
2
C *
L
Output Load Conditions (See Figure 9)
TEST CONDITION
R1
470Ω
∞
R2
CL
A
B
390Ω
390Ω
390Ω
35pF
35pF
35pF
*
C includes Test Fixture and Probe Capacitance.
L
Active High
Active Low
0213A/8840
470Ω
Active High to Z
at VOH-0.5V
∞
390Ω
5pF
C
Active Low to Z
at VOL+0.5V
470Ω
390Ω
5pF
Table 2-0004A/8840
DC Electrical Characteristics
Over Recommended Operating Conditions
3
SYMBOL
PARAMETER
Output Low Voltage
Output High Voltage
CONDITION
IOL = 8 mA
MIN.
–
TYP. MAX. UNITS
–
–
–
–
0.4
–
V
V
VOL
IOH = -4 mA
2.4
–
VOH
Input or I/O Low Leakage Current
0.0V ≤ V ≤ 0.8V
-10
10
µA
µA
I
I
IL
IN
3.5V ≤ V ≤ V
–
IN
CC
VCCIO = 5V
(VCCIO - 0.2) ≤ VIN ≤ VCCIO
VCCIO = 3.3V
–
–
–
–
10
10
µA
µA
Input or I/O High Leakage Current
IH
VCCIO < VIN ≤ 5.25V
V >VCCIO
IN
Active Pullup Current, Input or I/O
Bus-Hold Low Sustaining Current
Bus-Hold High Sustaining Current
Bus-Hold Low, Overdrive Current
Bus-Hold High, Overdrive Current
Bus-Hold Trip Point (1.4V Nominal)
Output Short Circuit Current
0V ≤ V ≤ 2.0V
-10
50
-50
–
–
–
–
–
–
–
–
-250
–
µA
µA
µA
µA
µA
V
I
I
I
I
I
PU
IN
VIN = 0.8V
BHL
V = 2.0V
IN
–
BHH
BHLO
BHHO
0V ≤ VIN ≤ VCCIO
0V ≤ VIN ≤ VCCIO
550
-550
2.0
-200
–
0.8
–
V
I
BHT
OS1
VCC = 5V, VOUT = 0.5V
mA
V = 0.0V, VIH = 3.0V High Speed Mode
–
–
630
340
–
–
mA
mA
IL
CC2,4
Operating Power Supply Current
I
fCLOCK = 1MHz
Low Power Mode
Table 2-0007/8840
1. One output at a time for a maximum duration of one second. VOUT = 0.5V was selected to avoid test problems
by tester ground degradation. Characterized but not 100% tested.
2. Measured using 42 20-bit counters.
3. Typical values are at VCC= 5V and T = 25°C.
A
4. Maximum ICC varies widely with specific device configuration and operating frequency.
12
LATTICE [ LATTICE SEMICONDUCTOR ]
