6.2 Pin Descriptions and Lists
The following subsections provide descriptions for the electrical pins, as
well as numerical and alphabetic listings of all L64777 pins.
6.2.1 L64777 Electrical Pin Descriptions
Table 6.5 summarizes the electrical properties of the pins on the L64777.
The table provides the signal types for both output and input pins, and
the drive capacity for outputs.
Table 6.5
L64777 Pin Description Summary
Drive
(mA) Active
Mnemonic
Description
Type
AVDD1
AVDD2
AVSS1
Supply for DAC
Supply for DAC
Analog Input
Analog Input
Analog Input
–
–
–
–
–
–
Analog Supply for
DAC
AVSS2
Supply for DAC
Analog Input
–
–
–
–
COMP1
Compensation
Output for DAC
Analog Output
COMP2
Compensation
Output for DAC
Analog Output
–
–
DIG_I[9:0]
DIG_Q[9:0]
DIN[7:0]
Digital I Output
Digital Q Output
Data Input
Output
4
4
–
–
–
4
4
HIGH
HIGH
HIGH
HIGH
LOW
HIGH
HIGH
Output
TTL Input
TTL Input
TTL Input
Output
DVALIDIN
ERRORIN
FIFOALARM
FIRSTOUT
Data Enable Input
Error Flag Input
FIFO Alarm Output
Beginning of
Sequence
Output
FSTARTIN
Frame Start Input
Frame Start Output
TTL Input
Output
–
4
HIGH
HIGH
FSTARTOUT
Pin Descriptions and Lists
6-5
ETC [ ETC ]
