MC68SEC000AA16 Freescale Semiconductor, MC68SEC000AA16 Datasheet - Page 30
![IC MPU 32BIT 16MHZ 64-QFP](/photos/6/76/67671/mc68sec000aa16_sml.jpg)
MC68SEC000AA16
Manufacturer Part Number
MC68SEC000AA16
Description
IC MPU 32BIT 16MHZ 64-QFP
Manufacturer
Freescale Semiconductor
Series
M68000r
Specifications of MC68SEC000AA16
Processor Type
M680x0 32-Bit
Speed
16MHz
Voltage
3.3V, 5V
Mounting Type
Surface Mount
Package / Case
64-QFP
Processor Series
M680xx
Core
CPU32
Maximum Clock Frequency
16 MHz
Operating Supply Voltage
3.3 V, 5 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
Core Size
32 Bit
Cpu Speed
16MHz
Digital Ic Case Style
QFP
No. Of Pins
64
Supply Voltage Range
5V
Operating Temperature Range
0°C To +70°C
Frequency Typ
20MHz
Filter Terminals
SMD
Rohs Compliant
Yes
Clock Frequency
16MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68SEC000AA16
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68SEC000AA16
Manufacturer:
FREESCALE
Quantity:
20 000
Company:
Part Number:
MC68SEC000AA16R2
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Operating Modes and On-Chip Memory
The address, R/W, and AS signals are active and valid for all bus cycles, including accesses to internal
memory locations. The E clock is used to enable external devices to drive data onto the internal data bus
during the second half of a read bus cycle (E clock high). R/W controls the direction of data transfers. R/W
drives low when data is being written to the internal data bus. R/W will remain low during consecutive data
bus write cycles, such as when a double-byte store occurs.
Refer to
2.2.3 Test Mode
Test mode, a variation of the expanded mode, is primarily used during Freescale’s internal production
testing; however, it is accessible for programming the configuration (CONFIG) register, programming
calibration data into electrically erasable, programmable read-only memory (EEPROM), and supporting
emulation and debugging during development.
2.2.4 Bootstrap Mode
When the MCU is reset in special bootstrap mode, a small on-chip read-only memory (ROM) is enabled
at address $BF00–$BFFF. The ROM contains a bootloader program and a special set of interrupt and
reset vectors. The MCU fetches the reset vector, then executes the bootloader.
Bootstrap mode is a special variation of the single-chip mode. Bootstrap mode allows special-purpose
programs to be entered into internal random-access memory (RAM). When bootstrap mode is selected
at reset, a small bootstrap ROM becomes present in the memory map. Reset and interrupt vectors are
30
Figure
The write enable signal for an external memory is the NAND of the E clock
and the inverted R/W signal.
2-1.
MCU
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
R/W
AS
E
Figure 2-1. Address/Data Demultiplexing
M68HC11E Family Data Sheet, Rev. 5.1
NOTE
D1
D2
D3
D4
D5
D6
D7
D8
LE
HC373
OE
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
ADDR15
ADDR14
ADDR13
ADDR12
ADDR11
ADDR10
ADDR9
ADDR8
ADDR7
ADDR6
ADDR5
ADDR4
ADDR3
ADDR2
ADDR1
ADDR0
WE
OE
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
Freescale Semiconductor
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