ATF1508ASL-20QC100 Atmel, ATF1508ASL-20QC100 Datasheet - Page 6

• Manufacturer Part Number: ATF1508ASL-20QC100
• Description: IC CPLD 128 MACROCELL LP 100PQFP
• Manufacturer: Atmel
• Series: ATF1508AS(L)r

Specifications of ATF1508ASL-20QC100

• Programmable Type: In System Programmable (min 10K program/erase cycles)
• Delay Time Tpd(1) Max: 20.0ns
• Voltage Supply - Internal: 4.75 V ~ 5.25 V
• Number Of Macrocells: 128
• Number Of I /o: 80
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-MQFP, 100-PQFP
• Voltage: 5V
• Memory Type: EEPROM
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Number Of Logic Elements/cells: -
• Other names: ATF1508ASL20QC100

Figure 1. ATF1508AS Macrocell
Programmable
Pin-keeper
Option for
Inputs and I/Os
Input Diagram
6
ATF1508AS(L)
The ATF1508AS offers the option of programming all input and I/O pins so that “pin-keeper”
circuits can be utilized. When any pin is driven high or low and then subsequently left floating,
it will stay at that previous high- or low-level. This circuitry prevents unused input and I/O lines
from floating to intermediate voltage levels, which causes unnecessary power consumption
and system noise. The keeper circuits eliminate the need for external pull-up resistors and
eliminate their DC power consumption.
0784P–PLD–7/05