MC68F375BGMZP33 Freescale Semiconductor, MC68F375BGMZP33 Datasheet - Page 229

• Manufacturer Part Number: MC68F375BGMZP33
• Description: IC MPU 32BIT 33MHZ 217-PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68F375BGMZP33

• Processor Type: M683xx 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 217-PBGA
• Processor Series: M683xx
• Core: CPU32
• Data Bus Width: 32 bit
• Program Memory Type: Flash
• Program Memory Size: 256 KB
• Data Ram Size: 10 KB
• Interface Type: SPI, SCI, CAN
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 16
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Lead Free Status / Rohs Status: No

MC68F375
REFERENCE MANUAL
AMCHAN[1:0]. Address lines to select between the 4 multiplexers. This selection
appears redundant since the final selection between the 4 multiplexers is done by the
QADC64 module. This redundancy is added to reduce the dynamic charging current
required from the input pin. These pins perform a disable function more than a select
function. Only 1 of the 4 multiplexers can be active at a time. These address lines dis-
able the other 3 multiplexers so that none of their switches are closed. As the selected
multiplexer cycles through its various inputs, the other multiplexers draw no dynamic
charging current through their inputs. Without this disable function (as in the external
multiplexer case), pins on all 4 multiplexers would draw current even though only 1
multiplexer would actually be in use.
Assuming that AMCHAN[1:0] change simultaneously with AMMA[2:0], break before
make switching ensures that on each channel change the following occurs:
AMPMUX. When low this signal disables all multiplexer inputs. It is used in conjunction
with AMCHAN[1:0] to reduce dynamic charging current into the AMUX analog pins.
This signal is normally low when the direct inputs to the QADC64 are selected.
AMADB[1:0]. The 2 multiplexer outputs from the AMUX.
1. All 4 multiplexers are disabled
2. The desired input ANX0-15 is selected
3. The appropriate multiplexer is enabled
AMPMUX
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AMCHAN[1:0]
QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE-64
XX
00
00
00
00
00
00
00
00
01
01
01
01
01
01
01
01
Freescale Semiconductor, Inc.
For More Information On This Product,
Table 5-22 AMUX I/O Functionality
AMMA[2:0]
Go to: www.freescale.com
XXX
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
Rev. 25 June 03
AMADB3
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
AMADB2
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
AMADB1
ANX11
ANX13
ANX15
ANX1
ANX3
ANX5
ANX7
ANX9
Z
Z
Z
Z
Z
Z
Z
Z
Z
AMADB0
ANX10
ANX12
ANX14
ANX0
ANX2
ANX4
ANX6
ANX8
Z
Z
Z
Z
Z
Z
Z
Z
Z
MOTOROLA
5-53