Shenzhen ADA Electronics Co. Ltd. ADA789 用户手册
第
7 页共 11 页
Table 3-1.
Programming mode and working mode Truth table
Pin
Programming
mode
Working mode
DIGTEST
H
L/NC
VDDFLASH
H
/
IO04
H
/
IO14
L/NC
/
3.6. Working mode
ADA789 supports four working modes: bootloader mode, normal work mode, ATE test
mode, and QC mode. These mode are configured by three pins: BOOT, STATUS, ELINK.
Note: in below table, 1 means high voltage level, 0 means low voltage level. All the
three IOs are internally initialized as input pull high.
Table 3-2.
Working mode truth table
PinFunction
BOOT
STATUS
ELINK
Pin
IO31
IO30
IO29
Bootloader mode
0
/
/
Normal work mode
1
1
1
ATE test (RF test)
1
0
1
QC mode
1
1
0
4. Electrical parameters
Note: test condition VDD=3.3V, temperature
25
°
C
4.1. Absolute maximum rating
Table 4-1. Absolute maximum rating
Item
Specification
Value
Unit
Storage temperature
_
-40 ~ 85
℃
Maximum soldering
_
260
℃
temperature
Operating voltage
IPC/JEDEC J-STD-020
3.0 ~ 3.4
V