33880_12 Datasheet, PDF (4/25 Pages) Freescale Semiconductor, Inc – Configurable Octal Serial Switch with Serial Peripheral Interface I/O

PIN CONNECTIONS
GND
1
VDD
2
S8
3
S8
4
D8
5
S2
6
D2
7
TGND
8
TGND
9
S1
10
D1
11
D6
12
S6
13
IN6
14
EN
15
SCLK
16
32
DO
31
VPWR
30
S7
29
S7
28
D7
27
S4
26
D4
25
TGND
24
TGND
23
S3
22
D3
21
D5
20
S5
19
IN5
18
CS
17
DI
Figure 4. 32-Pin Connections
Table 2. SOICW 32-Pin Definitions
Pin
Number
1
Pin Name
GND
Digital ground.
Definition
2
VDD
Logic supply voltage. Logic supply must be switched off for low current mode (V_DD below 3.9 V).
3, 4
S8
Output 8 MOSFET source pins.
5
D8
Output 8 MOSFETdrain pin.
6
S2
Output 2 MOSFET source pin.
7
D2
Output 2 MOSFET drain pin.
8, 9, 24, 25
TGND
Thermal Ground pins are connected internally to the substrate of the die and are used for heat transfer.
Connect thermal ground pins to the PCB ground and ground plane for heat sinking.
10
S1
Output 1 MOSFET source pin.
11
D1
Output 1 MOSFET drain pin.
12
D6
Output 6 MOSFETdrain pin.
13
S6
Output 6 MOSFET source pin.
14
IN6
PWM direct control input pin for output 6. IN6 is “OR” with SPI bit.
15
EN
Enable input. Allows control of outputs. Active high.
16
SCLK
SPI control clock input pin.
17
DI
SPI control data input pin from MCU to the 33880. Logic [1] activates output.
18
CS
SPI control chip select input pin from MCU to the 33880. Logic [0] allows data to be transferred in.
19
IN5
PWM direct control input pin for output 5. IN5 is “OR” with SPI bit.
20
S5
Output 5 MOSFET source pin.
21
D5
Output 5 MOSFET drain pin.
22
D3
Output 3 MOSFET drain pin.
23
S3
Output 3 MOSFET source pin.
26
D4
Output 4 MOSFET drain pin.
27
S4
Output 4 MOSFET source pin.
28
D7
Output 7 MOSFET drain pin.
29, 30
S7
Output 7 MOSFET source pins.
31
VPWR
Power supply pin to the 33880. VPWR has internal reverse battery protection.
32
DO
SPI control data output pin from the 33880 to the MCU. DO = 0 no fault, DO = 1 specific output has fault.
33880
4
Analog Integrated Circuit Device Data
Freescale Semiconductor