ispLSI 1048-50LQI Lattice, ispLSI 1048-50LQI Datasheet - Page 10

• Manufacturer Part Number: ispLSI 1048-50LQI
• Description: CPLD - Complex Programmable Logic Devices USE ispMACH 4000V
• Manufacturer: Lattice

Specifications of ispLSI 1048-50LQI

• Memory Type: EEPROM
• Number Of Macrocells: 192
• Maximum Operating Frequency: 71.4 MHz
• Delay Time: 30.7 ns
• Number Of Programmable I/os: 96
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: PQFP-120
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 120
• Supply Current: 260 mA
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 4.5 V

Power consumption in the ispLSI 1048 device depends
on two primary factors: the speed at which the device is
operating, and the number of Product Terms used. Fig-
Figure 3. Typical Device Power Consumption vs fmax
Maximum GRP Delay vs GLB Loads
Power Consumption
I CC can be estimated for the ispLSI 1048 using the following equation:
I CC = 73 + (# of PTs * 0.23) + (# of nets * Max. freq * 0.010) where:
# of PTs = Number of Product Terms used in design
# of nets = Number of Signals used in device
Max. freq = Highest Clock Frequency to the device
The I CC estimate is based on typical conditions (V CC = 5.0V, room temperature) and an assumption of 2 GLB loads on
average exists. These values are for estimates only. Since the value of I CC is sensitive to operating conditions and the
program in the device, the actual I CC should be verified.
8
7
6
5
4
3
2
1
0
4
250
200
150
100
50
0
Notes: Configuration of Twelve 16-bit Counters
GLB Loads
10
8
Typical Current at 5V, 25¡C
20
ispLSI 1048
30
9
12
f
max (MHz)
ure 3 shows the relationship between power and operat-
ing speed.
40
Specifications ispLSI 1048
50
16
60
ispLSI 1048-50
ispLSI 1048-70
ispLSI 1048-80
70
80
0126A-48-80-isp
0127A-48-80-isp