MC33999 Datasheet, PDF (3/21 Pages) Motorola, Inc – 16-Output Switch with SPI and PWM Control

PIN CONNECTIONS
PIN CONNECTIONS
PWM0
1
OUT0
2
OUT1
3
PWM1
4
SOPWR
5
OUT2
6
OUT3
7
VPWR
8
NC
9
NC
10
GND
11
GND
12
GND
13
GND
14
GND
15
GND
16
GND
17
NC
18
NC
19
SCLK
20
OUT4
21
OUT5
22
CS
23
PWM6
24
OUT6
25
OUT7
26
PWM7
27
54
PWM15
53
OUT15
52
OUT14
51
PWM14
50
PWM
49
OUT13
48
OUT12
47
RST
46
NC
45
NC
44
GND
43
GND
42
GND
41
NC
40
GND
39
GND
38
GND
37
NC
36
NC
35
SO
34
OUT11
33
OUT10
32
SI
31
PWM9
30
OUT9
29
OUT8
28
PWM8
Figure 3. 33999 Pin Connections
Table 1. 33999 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 10.
Pin Number
Pin
Name
Pin
Function
Formal Name
Definition
1, 4, 24, 27, 28,
31, 51, 54
PWM0, PWM1,
PWM6 – PWM9,
PWM14, PWM15
2, 3, 6, 7, 21, 22,
25, 26, 29, 30, 33,
34, 48, 49, 52, 53
OUT0 – OUT15
5
SOPWR
8
VPWR
9, 10, 18, 19, 36,
NC
37, 41, 45, 46
11 –17, 38 – 40,
42 – 44
GND
20
SCLK
23
CS
32
SI
35
SO
47
RST
50
PWM
Input
Output
Power
Input
N/C
Ground
Input
Input
Input
Output
Input
Input
PWMn Input
Parallel PWM control Input pins. Allows direct PWM control of
eight outputs.
Output 0 –
Output 15
Low-side driver outputs.
SO_PWR Supply
Battery Input
No Connect
Power supply pin to the SO output driver.
Battery supply input pin.
These pins have no connection.
Ground
Ground for logic, analog, and power output devices.
System Clock
Chip Select
Serial Input
Serial Output
Reset
PWM Control Pin
System Clock for internal shift registers of the 33999.
SPI control chip select input pin from MCU to 33999.
Serial data input pin to the 33999.
Serial data output pin.
Active low reset input pin.
PWM control input pin. Supports PWM on any combination of
outputs.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33999
3