Lattice Semiconductor
ispMACH 4000V/B/C/Z Family Data Sheet
I/O Recommended Operating Conditions
Standard
Min.
VCCO (V)1
Max.
LVTTL
3.0
3.6
LVCMOS 3.3
3.0
3.6
Extended LVCMOS 3.32
2.7
3.6
LVCMOS 2.5
2.3
2.7
LVCMOS 1.8
1.65
1.95
PCI 3.3
3.0
3.6
1. Typical values for VCCO are the average of the min. and max. values.
2. ispMACH 4000Z only.
DC Electrical Characteristics
Over Recommended Operating Conditions
Symbol
Parameter
Condition
Min.
Typ.
Max. Units
IIL, IIH1 Input Leakage Current
0 < VIN ≤ 3.6V, Tj = 105°C
0 < VIN ≤ 3.6V, Tj = 130°C
—
—
10
µA
—
—
15
µA
IIH2
Input High Leakage Current
3.6V < VIN ≤ 5.5V, Tj = 105°C
3.0V ≤ VCCO ≤ 3.6V
3.6V < VIN ≤ 5.5V, Tj = 130°C
3.0V ≤ VCCO ≤ 3.6V
—
—
20
µA
—
—
50
µA
IPU
I/O Weak Pull-up Resistor Current 0 ≤ VIN ≤ 0.7VCCO
-30
—
-150
µA
IPD
I/O Weak Pull-down Resistor Current VIL (MAX) ≤ VIN ≤ VIH (MIN)
30
—
150
µA
IBHLS Bus Hold Low Sustaining Current VIN = VIL (MAX)
30
—
—
µA
IBHHS Bus Hold High Sustaining Current VIN = 0.7 VCCO
-30
—
—
µA
IBHLO Bus Hold Low Overdrive Current
0V ≤ VIN ≤ VBHT
—
—
150
µA
IBHHO Bus Hold High Overdrive Current
VBHT ≤ VIN ≤ VCCO
—
—
-150
µA
VBHT Bus Hold Trip Points
—
VCCO * 0.35 — VCCO * 0.65 V
C1
I/O Capacitance3
VCCO = 3.3V, 2.5V, 1.8V
—
—
8
pf
VCC = 1.8V, VIO = 0 to VIH (MAX)
—
—
C2
Clock Capacitance3
VCCO = 3.3V, 2.5V, 1.8V
—
—
6
pf
VCC = 1.8V, VIO = 0 to VIH (MAX)
—
—
C3
Global Input Capacitance3
VCCO = 3.3V, 2.5V, 1.8V
—
—
6
pf
VCC = 1.8V, VIO = 0 to VIH (MAX)
—
—
1. Input or I/O leakage current is measured with the pin configured as an input or as an I/O with the output driver tristated. It is not
measured with the output driver active. Bus maintenance circuits are disabled.
2. 5V tolerant inputs and I/O should only be placed in banks where 3.0V ≤ VCCO ≤ 3.6V.
3. TA = 25°C, f = 1.0MHz
16