AT97SC3205T [SUMMARY DATASHEET]
Atmel-8883AS-TPM-AT97SC3205T-Datasheet-Summary_022014
4
Note: 1. The substrate center pad for the 32-pin QFN is directly tied to GND internally; therefore, this pad can either be left
floating or tied to GND.
PIRQ#
SPI Interrupt Requests. If unused, this pin should be tied to ground directly or through a 4.7K
resistor.
ATest
Atmel Test Pins.
Only utilized during manufacturing test.
To optimize power savings and improve noise immunity, these ATest pins should be biased to V
CC
or
GND as follows:
TSSOP Pin 21 / QFN Pin 19
TSSOP Pin 23 / QFN Pin 21
TSSOP Pin 26 / QFN Pin 24
NC
No Connect Pins.
The AT97SC3205T TSSOP package has additional pins which are no connects and can be tied to
GND, V
CC
, or left floating at the customers discretion:
NC – TSSOP Pin 5
NC – TSSOP Pin 12
NC – TSSOP Pin 13
NC – TSSOP Pin 14
NC – TSSOP Pin 15
NC – TSSOP Pin 27
NC – TSSOP Pin 28
The AT97SC3205T QFN package has additional pins which are no connects and can be tied to GND,
V
CC
, or left floating at the customers discretion:
NC – QFN Pin 7
NC – QFN Pin 10
NC – QFN Pin 11
NC – QFN Pin 13
NC – QFN Pin 14
NC – QFN Pin 15
NC – QFN Pin 16
NC – QFN Pin 25
NC – QFN Pin 26
NC – QFN Pin 27
NC – QFN Pin 28
NC – QFN Pin 31
Table 1-2. Pin Descriptions (Continued)
Pin Description
