ATF750LVC-15SC Atmel, ATF750LVC-15SC Datasheet - Page 4

• Manufacturer Part Number: ATF750LVC-15SC
• Description: IC CPLD 15NS 24SOIC
• Manufacturer: Atmel
• Series: ATF750LVCr

Specifications of ATF750LVC-15SC

• Programmable Type: In System Programmable (min 1K program/erase cycles)
• Delay Time Tpd(1) Max: 15.0ns
• Voltage Supply - Internal: 3 V ~ 5.25 V
• Number Of Macrocells: 10
• Number Of I /o: 10
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Voltage: 3.3V
• Memory Type: EEPROM
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Number Of Logic Elements/cells: -
• Other names: ATF750LVC15SC

8. Bus-friendly Pin-keeper Input and I/Os
9. Input Diagram
10. I/O Diagram
4
ATF750LVC
All input and I/O pins on the ATF750LVC have programmable “pin-keeper” circuits. If acti-
vated, 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 cause unnecessary power consumption and system noise. The keeper circuits elimi-
nate the need for external pull-up resistors and eliminate their DC power consumption.
Enabling or disabling of the pin-keeper circuits is controlled by the device type chosen in the
logic compiler device selection menu. Please refer to the software compiler table for more
details. Once the pin-keeper circuits are disabled, normal termination procedures are required
for unused inputs and I/Os.
Table 1. Software Compiler Mode Selection
ATF750LVC (PPK)
ATF750LVC
Synario
DATA
OE
INPUT
PROTECTION
V
CIRCUIT
CC
V750CPPK
ESD
WinCupl
V750C
V
CC
100K
PROGRAMMABLE
PROGRAMMABLE
OPTION
OPTION
100K
V
CC
Pin-keeper Circuit
Disabled
Enabled
I/O
1447F–PLD–11/08