MC33975EK Freescale Semiconductor, MC33975EK Datasheet - Page 4

• Manufacturer Part Number: MC33975EK
• Description: IC SWITCH DETECT MULT 32-SOICW
• Manufacturer: Freescale Semiconductor

Specifications of MC33975EK

• Applications: *
• Interface: *
• Package / Case: 32-SOIC (7.5mm Width) Exposed Pad, 32-eSOIC, 32-HSOIC
• Mounting Type: Surface Mount
• Voltage - Supply: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4
33975
PIN CONNECTIONS
Table 2. Pin Definitions
25–28
18–24
A functional description of each Pin can be found in the Functional Pin Description section on page 12.
9–15,
5–8
Pin
16
17
29
30
31
32
1
2
3
4
Pin Name
VPWR
WAKE
AMUX
SCLK
GND
VDD
SPn
SGn
INT
SO
CS
SI
Switch-to-Ground Inputs 13–7
Programmable Switches 0–3
Programmable Switches 4–7
Switch-to-Ground Inputs 0–6
Analog Multiplex Output
Voltage Drain Supply
Formal Name
SPI Slave Out
Battery Input
SPI Slave In
Serial Clock
Chip Select
Wake-up
Interrupt
Ground
VPWR
SCLK
GND
SG0
SG1
SG2
SG3
SG4
SG5
SG6
SP0
SP1
SP2
SP3
CS
SI
Figure 3. 33975 Pin Connections
PIN CONNECTIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Ground for logic, analog, and switch-to-battery inputs
SPI control data input pin from MCU to 33975
SPI control clock input pin
SPI control chip select input pin from MCU to 33975. Logic [0] allows data to be
transferred in
Programmable switch-to-battery or switch-to-ground input pins
Switch-to-ground input pins
Battery supply input pin. This pin requires external reverse battery protection.
Open drain wake-up output is designed to control a power supply enable pin
Open-drain output to MCU is used to indicate input switch change of state
Analog multiplex output
3.3/5.0V supply sets SPI communication level for the SO driver
Provides digital data from 33975 to the MCU
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
SO
VDD
AMUX
INT
SP7
SP6
SP5
SP4
SG7
SG8
SG9
SG10
SG11
SG12
SG13
WAKE
Description
Analog Integrated Circuit Device Data
Freescale Semiconductor