STA2500DTR STMICROELECTRONICS [STMicroelectronics], STA2500DTR Datasheet - Page 16

• Manufacturer Part Number: STA2500DTR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Pinout
Table 13.
1. Pin behaviour during HW reset (BT_RESETN low).
2. Pin behaviour immediately after HW reset and internal chip initialization, but before SW parameter download.
3. See also pin BT_VDD_CLD in
4. Reconfigurable I/O pin.The functionality of these I/Os can be configured through software parameter download (see
5. Should be strapped to BT_VSSDIG if not used.
6. JTAG mode.
7. Described in
8. To be strapped to BT_VSSANA.
9. Pin is ST - reserved for test function and it must be soldered to an isolated pad (not connected to anything, just floating).
4.2
16/57
Other pins
Section
BT_VDD_DSM
BT_VDD_RF
BT_AF_PRG
BT_VDD_D
BT_VDD_N
BT_TEST1
BT_TEST2
Name
7.5).
The STA2500D pin list (functional and supply) (continued)
HW configuration of the STA2500D
By means of the three configuration pins, one can select the Host interface (UART or SPI)
and clock request signal polarity to be used at startup.
The available combinations of Host interface and protocol are illustrated in
‘1’ = BT_VIO_A and ‘0’ = BT_VSSDIG). Additionally, the polarity of the BT_CLK_REQ
signals can be programmed through the same pins. The polarity of the BT_CLK_REQ_IN
and BT_CLK_REQ_OUT signals is further described in
Section
4.3.
G2
C7
B5
A6
E5
B7
A1
Pin
#
Table
Internal supply decoupling/Regulator output.
Need 220nF decoupling capacitor to
BT_VSSDIG.
Internal supply decoupling/Regulator output.
Need 220nF decoupling capacitor to
BT_VSSANA.
Internal supply decoupling/Regulator output.
Need 220nF decoupling capacitor to
BT_VSSANA.
Internal supply decoupling/Regulator output.
Need 220nF decoupling capacitor to
BT_VSSRF.
Test pin
Test pin (Leave unconnected)
13.
Doc ID 16067 Rev 1
Description
(9)
Section
Type
I/O
I/O
-
-
-
-
6.8.
-
-
-
-
Input
Open
Reset
(8)
(1)
Table 14
-
-
-
-
Input
Open
after reset
STA2500D
Default
(where
(8)
(2)