33793 Datasheet, PDF (4/27 Pages) Freescale Semiconductor, Inc – Distributed System Interface (DSI) Sensor Interface

PIN CONNECTIONS
PIN CONNECTIONS
BUSRTN ¹
I/O0 ²
AGND ³
I/O1 ⁴
AGND ⁵
I/O3 ⁶
NC ⁷
I/O2 ⁸
16
BUSOUT
15
NC
14
BUSIN
13
NC
12
H_CAP
11
REGOUT
10
NC
9 _LOGOUT
Figure 3. 33793 Pin Connections
Table 2. 33793 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
BUSRTN
Power
Bus Return
This pin provides the common return for power and signalling.
2
I/O0
Input/Output
Logic I/O
This pin can be used to provide a logic level output, a logic input, or an
analog-to-digital (A/D) input.
3, 5
AGND
Ground
Analog Ground
This pin is the low reference level and power return for the analog-to-
digital converter (ADC).
4
I/O1
Input/Output
Logic I/O
This pin can be used to provide a logic level output, a logic input, or an
A/D input.
6
I/O3
Input/Output
Logic I/O
This pin can be used to provide a logic level output, a logic input, or an
A/D input.
7, 10, 13, 15
NC
No Connect
No Connect
These pins have no internal connections.
8
I/O2
Input/Output
Logic I/O
This pin can be used to provide a logic level output, a logic input, or an
A/D input.
9
LOGOUT
Output
Logic Out
This is a logic output with higher pull-up drive capability than the standard
logic I/O.
11
REGOUT
Output
Regulator Output ^{This pin provides a regulated 5.0 V output. The power is derived from the}
bus.
12
H_CAP
Output
Holding Capacitor ^{A capacitor attached to this pin is charged by the bus during bus idle and}
supplies current to run the device and for external devices via the
REGOUT pin during non-idle periods.
14
BUSIN
Input
DSI Bus Input
This pin attaches to the bus and responds to initialization commands.
16
BUSOUT
Output
DSI Bus Output ^{This pin attaches to the bus and responds to reverse initialization}
commands.
33793
4
Analog Integrated Circuit Device Data
Freescale Semiconductor