CC2550 Datasheet, PDF (47/50 Pages) Texas Instruments – Single Chip Low Cost Low Power RF-Transmitter

CC2550
0x3A (0xFA): TXBYTES – Underflow and number of bytes
Bit Field Name
Reset R/W Description
7 TXFIFO_UNDERFLOW
6:0 NUM_TXBYTES
R
R
Number of bytes in TX FIFO
34 Package Description (QLP 16)
All dimensions are in millimetres, angles in degrees. NOTE: The CC2550 is available in RoHS
lead-free package only.
Figure 16: Package dimensions drawing (the actual package has 16 pins)
Package
type
QLP 16 (4x4)
A A1 A2 D D1 D2 E E1 E2 L
T
b
e
Min 0.75 0.005 0.55 3.90 3.65
3.90 3.65
0.45 0.190 0.23
Typ. 0.85 0.025 0.65 4.00 3.75 2.30 4.00 3.75 2.30 0.55
0.28 0.65
Max 0.95 0.045 0.75 4.10 3.85
4.10 3.85
0.65 0.245 0.35
Table 28: Package dimensions
Preliminary Data Sheet (rev. 1.1) SWRS039
Page 47 of 51