SLOS606 – AUGUST 2008
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64-TERMINAL, HTQFP PACKAGE (TOP VIEW)
TERMINAL FUNCTIONS
TERMINAL
NAME
AGND
AVCC
AVDD
AVSS
BKND_ERR
NO.
57
58
10
11
35
TYPE
(1)
5-V
TOLERANT
TERMINATION
(2)
DESCRIPTION
Analog ground for power stage
Analog power supply for power stage. Connect externally to same
potential as PVCC.
3.3-V analog power supply
Analog 3.3-V supply ground
P
P
P
P
DI
Pullup
Active-low. A back-end error sequence is generated by applying logic
LOW to this terminal. This terminal is connected to an external power
stage. If no external power stage is used, connect this terminal directly
to DVDD.
(1)
(2)
TYPE: A = analog; D = 3.3-V digital; P = power/ground/decoupling; I = input; O = output
All pullups are 20-µA weak pullups and all pulldowns are 20-µA weak pulldowns. The pullups and pulldowns are included to assure
proper input logic levels if the terminals are left unconnected (pullups
→
logic 1 input; pulldowns
→
logic 0 input). Devices that drive
inputs with pullups must be able to sink 20
µA
while maintaining a logic-0 drive level. Devices that drive inputs with pulldowns must be
able to source 20
µA
while maintaining a logic-1 drive level.
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