33879_09 Datasheet, PDF (4/23 Pages) Freescale Semiconductor, Inc – Configurable Octal Serial Switch with Open Load Detect Current Disable

PIN CONNECTIONS
PIN CONNECTIONS
GND
1
VDD
2
S8
3
NC
4
D8
5
S2
6
D2
7
NC
8
NC
9
S1
10
D1
11
D6
12
S6
13
IN6
14
EN
15
SCLK
16
GND
32
DO
31
VPWR
30
NC
29
S7
28
D7
27
S4
26
D4
25
NC
24
NC
23
S3
22
D3
21
D5
20
S5
19
IN5
18
CS
17
DI
Figure 3. 33879 Pin Connections
Table 2. 33879 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 14.
Pin Number Pin Name
1
GND
Pin
Function
Ground
Formal Name
Ground
Digital ground.
Definition
2
VDD
Input
Logic Supply
Logic supply for SPI interface. With V_DD low the device will be in Sleep
Voltage
mode.
3
S8
Output
Source Output 8 Output 8 MOSFET source pin.
4, 8, 9,
24, 25, 30
NC
No
Not Connected No internal connection to this pin.
Connection
5
D8
Output
Drain Output 8 ^{Output 8 MOSFET drain pin.}
6
S2
Output
Source Output 2 ^{Output 2 MOSFET source pin.}
7
D2
Output
Drain Output 2 ^{Output 2 MOSFET drain pin.}
10
S1
Output
Source Output 1 ^{Output 1 MOSFET source pin.}
11
D1
Output
Drain Output 1 ^{Output 1 MOSFET drain pin.}
12
D6
Output
Drain Output 6 ^{Output 6 MOSFET drain pin.}
13
S6
Output
Source Output 6 ^{Output 6 MOSFET source pin.}
14
IN6
Input
Command Input 6 ^{PWM direct control input pin for output 6. IN6 is “OR” with SPI bit.}
15
EN
Input
Enable Input
IC Enable. Active high. With EN low, the device is in Sleep mode.
16
SCLK
Clock
SPI Clock
SPI control clock input pin.
17
DI
Input
Serial Data Input ^{SPI control data input pin from MCU to the 33879. Logic [1] activates output.}
18
CS
Input
SPI Chip Select ^{SPI control chip select input pin from MCU to the 33879. Logic [0] allows}
data to be transferred in.
19
IN5
Input
Command Input 5 ^{PWM direct control input pin for output 5. IN5 is “OR” with SPI bit.}
20
S5
Output
Source Output 5 ^{Output 5 MOSFET source pin.}
33879
4
Analog Integrated Circuit Device Data
Freescale Semiconductor