LA-ISPPAC-POWR1014A-01TN48E Lattice, LA-ISPPAC-POWR1014A-01TN48E Datasheet - Page 13

• Manufacturer Part Number: LA-ISPPAC-POWR1014A-01TN48E
• Description: IC, PROG POWER SUPPLY SUPERVISOR TQFP-48
• Manufacturer: Lattice
• Series: ispPAC®r

Specifications of LA-ISPPAC-POWR1014A-01TN48E

• Input Voltage: 4.5V
• Supply Voltage Range: 2.8V To 3.96
• No. Of Pins: 48
• Operating Temperature Range: -40°C To +105°C
• No. Of Macrocells: 24
• Termination Type: SMD
• Supply Voltage Min: 2.8V
• Rohs Compliant: Yes
• Applications: General Purpose
• Voltage - Input: -0.3 V ~ 5.9 V
• Voltage - Supply: 2.8 V ~ 3.96 V
• Current - Supply: 20mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Filter Terminals: SMD
• Frequency: 25MHz
• Input Voltage Primary Max: 4.5V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Lattice Semiconductor
Figure 2-5. Verify Timing Diagram
Figure 2-6. Discharge Timing Diagram
Theory of Operation
Analog Monitor Inputs
The ispPAC-POWR1014/A provides 10 independently programmable voltage monitor input circuits as shown in
Figure 2-7. Two individually programmable trip-point comparators are connected to an analog monitoring input.
Each comparator reference has 370 programmable trip points over the range of 0.672V to 5.867V. Additionally, a
75mV ‘zero-detect’ threshold is selectable which allows the voltage monitors to determine if a monitored signal has
dropped to ground level. This feature is especially useful for determining if a power supply’s output has decayed to
a substantially inactive condition after it has been switched off.
State
TCK
TMS
State
TCK
TMS
VIH
VIH
VIL
VIL
VIH
VIH
VIL
VIL
Update-IR
Update-IR
t
SU1
t
SU1
t
CKH
t
H
Run-Test/Idle (Erase or Program)
t
CKH
t
SU1
t
H
t
CKL
t
SU1
t
CKL
Run-Test/Idle (Program)
t
H
t
H
t
PWP
t
SU1
t
PWV
Select-DR Scan
t
CKH
t
SU1
t
H
2-13
Select-DR Scan
t
CKH
t
H
t
SU1
ispPAC-POWR1014/A Data Sheet
t
HVDIS
(Actual)
t
CKH
t
H
t
SU1
t
Run-Test/Idle (Verify)
SU1
t
CKL
t
CKH
Specified by the Data Sheet
t
CKH
t
H
Update-IR
t
H
t
PWV
t
SU1
t
CKL
t
Actual
SU1
t
PWV
t
CKH
t
H
t
CKH
t
H