MC68331CEH20 Freescale Semiconductor, MC68331CEH20 Datasheet - Page 227

IC MCU 32BIT 20MHZ 132-PQFP

MC68331CEH20

Manufacturer Part Number
MC68331CEH20
Description
IC MCU 32BIT 20MHZ 132-PQFP
Manufacturer
Freescale Semiconductor
Series
M683xxr
Datasheets

Specifications of MC68331CEH20

Core Processor
CPU32
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI, SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
18
Program Memory Type
ROMless
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
132-QFP
Controller Family/series
68K
No. Of I/o's
18
Cpu Speed
20MHz
No. Of Timers
1
Embedded Interface Type
QSPI, SCI, UART
No. Of Pwm Channels
2
Digital Ic Case Style
PQFP
Rohs Compliant
Yes
Processor Series
M683xx
Core
CPU32
Data Bus Width
32 bit
Data Ram Size
80 B
Interface Type
QSPI, SCI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
18
Number Of Timers
1
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Cpu Family
68K/M683xx
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
20MHz
Program Memory Size
Not Required
Total Internal Ram Size
80Byte
# I/os (max)
18
Number Of Timers - General Purpose
1
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
132
Package Type
PQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Ram Size
-
Program Memory Size
-
Data Converters
-
Lead Free Status / Rohs Status
 Details

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D.3.12 SYPCR — System Protection Control Register
SWE — Software Watchdog Enable
SWP — Software Watchdog Prescale
SWT[1:0] — Software Watchdog Timing
HME — Halt Monitor Enable
MC68331
USER’S MANUAL
15
RESET:
SYPCR controls system monitor functions, software watchdog clock prescaling, and
bus monitor timing. This register can be written once following power-on or reset.
This field selects software watchdog time-out period.
0 = Software watchdog disabled
1 = Software watchdog enabled
0 = Software watchdog clock not prescaled
1 = Software watchdog clock prescaled by 512
0 = Disable halt monitor function
1 = Enable halt monitor function
NOT USED
Freescale Semiconductor, Inc.
Table D-6 Software Watchdog Ratio
PFPAR Field
For More Information On This Product,
Table D-5 Port F Pin Assignments
PFPA7
PFPA6
PFPA5
PFPA4
PFPA3
PFPA2
PFPA1
PFPA0
SWP
Go to: www.freescale.com
0
0
0
0
1
1
1
1
REGISTER SUMMARY
Port F Signal
8
SWT
PF7
PF6
PF5
PF4
PF3
PF2
PF1
PF0
00
01
10
11
00
01
10
11
SWE
7
1
MODCLK
SWP
Ratio
6
2
2
2
2
2
2
2
Control Signal
2
11
13
15
18
20
22
24
9
MODCLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
IRQ2
IRQ1
5
0
SWT
4
0
HME
3
0
BME
2
0
$YFFA21
1
0
BMT
D-19
0
0
D

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