MC68HC000EI16 Freescale Semiconductor, MC68HC000EI16 Datasheet - Page 106

IC MPU 32BIT 16MHZ 68-PLCC

MC68HC000EI16

Manufacturer Part Number
MC68HC000EI16
Description
IC MPU 32BIT 16MHZ 68-PLCC
Manufacturer
Freescale Semiconductor
Datasheets

Specifications of MC68HC000EI16

Processor Type
M680x0 32-Bit
Speed
16MHz
Voltage
3.3V, 5V
Mounting Type
Surface Mount
Package / Case
68-PLCC
Family Name
M68000
Device Core
ColdFire
Device Core Size
16/32Bit
Frequency (max)
16MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
5V
Operating Supply Voltage (max)
5.25V
Operating Supply Voltage (min)
4.75V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
68
Package Type
PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Compliant

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SECTION 7
8-BIT INSTRUCTION EXECUTION TIMES
This section contains listings of the instruction execution times in terms of external clock
(CLK) periods for the MC68008 and MC68HC001/MC68EC000 in 8-bit mode. In this data,
it is assumed that both memory read and write cycles consist of four clock periods. A
longer memory cycle causes the generation of wait states that must be added to the total
instruction times.
The number of bus read and write cycles for each instruction is also included with the
timing data. This data is shown as
where:
For example, a timing number shown as 18(3/1) means that 18 clock periods are required
to execute the instruction. Of the 18 clock periods, 12 are used for the three read cycles
(four periods per cycle). Four additional clock periods are used for the single write cycle,
for a total of 16 clock periods. The bus is idle for two clock periods during which the
processor completes the internal operations required for the instruction.
7.1 OPERAND EFFECTIVE ADDRESS CALCULATION TIMES
Table 7-1 lists the numbers of clock periods required to compute the effective addresses
for instructions. The totals include fetching any extension words, computing the address,
and fetching the memory operand. The total number of clock periods, the number of read
cycles, and the number of write cycles (zero for all effective address calculations) are
shown in the previously described format.
MOTOROLA
n is the total number of clock periods
r is the number of read cycles
w is the number of write cycles
The total number of clock periods (n) includes instruction fetch
and all applicable operand fetches and stores.
M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
NOTE
n(r/w)
7- 1

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