mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 695

• Manufacturer Part Number: mcf5282
• Manufacturer: Freescale Semiconductor, Inc

33.8
Table 33-14
Timings listed in
Freescale Semiconductor
1
2
3
1
2
Maximum number of guaranteed program/erase cycles
Data retention at average operating temperature of 85°C
Name
B1a
B1b
B2a
B2b
Timing specifications have been indicated taking into account the full drive strength for the pads.
TEA and TA pins are being referred to as control inputs.
B0
B4
B5
A program/erase cycle is defined as switching the bits from 1 → 0 → 1.
Reprogramming of a Flash array block prior to erase is not required.
Refer to figure A-19.
External Interface Timing Characteristics
CLKOUT — MCF521x
CLKOUT — MCF528x
Control input valid to CLKOUT high
BKPT valid to CLKOUT high
CLKOUT high to control inputs invalid
CLKOUT high to asynchronous control input BKPT invalid
Data input (D[31:0]) valid to CLKOUT high
CLKOUT high to data input (D[31:0]) invalid
lists processor bus input timings.
All processor bus timings are synchronous; that is, input setup/hold and
output delay with respect to the rising edge of a reference clock. The
reference clock is the CLKOUT output.
All other timing relationships can be derived from these values.
Table 33-14
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Table 33-14. Processor Bus Input Timing Specifications
Table 33-13. SGFM Flash Module Life Characteristics
Parameter
are shown in
3
Characteristic
2
2
Figure
(V
DDF
Control Inputs
Data Inputs
1
NOTE
= 2.7 to 3.6 V)
1
33-2.
before failure
3
Retention
Symbol
P/E
Symbol
t
t
t
t
BKVCH
t
BKNCH
t
DIVCH
t
CVCH
CHCII
CHDII
CYC
10,000
Value
15.15
Electrical Characteristics
12.5
Min
10
10
10
0
0
6
0
2
Max
—
—
—
—
—
—
—
Cycles
Years
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
33-11