MC68HC711K4CFU4 Freescale Semiconductor, MC68HC711K4CFU4 Datasheet - Page 248

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MC68HC711K4CFU4

Manufacturer Part Number
MC68HC711K4CFU4
Description
IC MCU 24K 4MHZ EEPROM 80-QFP
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheets

Specifications of MC68HC711K4CFU4

Core Processor
HC11
Core Size
8-Bit
Speed
4MHz
Connectivity
SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
62
Program Memory Size
24KB (24K x 8)
Program Memory Type
OTP
Eeprom Size
640 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HC711K4CFU4
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Memory Expansion and Chip Selects
11.4.5 Clock Stretching
Technical Data
248
G1DG2
0
0
0
0
1
1
1
1
G1DPC
0
0
1
1
0
0
1
1
G2DPC
0
1
0
1
0
1
0
1
Chip select and bus control signals are synchronized with the external
E clock. To accommodate devices that are slower than the MCU, the
E clock can be stretched when a chip select is asserted so that it remains
high for one to three extra bus cycles. During this stretch, which can
occur only during accesses to addresses in that chip select’s address
range, the other clocks continue running normally, maintaining the
integrity of the timers and baud generators. Each chip select has two
associated bits in the chip-select clock stretch (CSCSTR) register that
set its clock stretching from zero (disabled) to three cycles.
Table 11-8. One Chip Select Driving Another
Freescale Semiconductor, Inc.
When Address is in:
or general 1 or 2 area
or general 1 or 2 area
A valid program area
A valid program area
For More Information On This Product,
Program CS Pin
or general 2 area
or general 1 area
or general 2 area
or general 1 area
A valid program
A valid program
A valid program
A valid program
A valid program
A valid program
Memory Expansion and Chip Selects
is Asserted
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A valid general 2 area
A valid general 2 area
A valid general 2 area
When Address is in:
General 2 CS Pin
or general 1 area
A valid general 2
Never asserted
Never asserted
Never asserted
Never asserted
is Asserted
A valid general 1 area
A valid general 1 area
A valid general 1 area
When Address is in:
General 1 CS Pin
Never asserted
Never asserted
Never asserted
Never asserted
Never asserted
is Asserted
M68HC11K Family
MOTOROLA

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