Motorola ColdFire MCF5281 - Manual (Page 694)

Electrical Characteristics
33-10 Freescale Semiconductor
33.7 Flash Memory Characteristics
The Flash memory characteristics are shown in Table 33-12 and Table 33-13 .
NOTE
The MCF5280 does not contain Flash memory.
Table 33-11. QADC Conversion Specifications (Operating)
(V
DDH and V DDA
= 5.0 V
dc
±
0.5V, V
DD
= 2.7-3.6V
,
V
SS
and V
SSA
= 0 V
dc
, V
RH
– V
RL
= 5 V
dc
± 0.5V, T
A within operating
temperature range, f
sys
= 16 MHz)
Num Parameter Symbol Min Max Unit
1 QADC Clock (QCLK) Frequency
1
1
Conversion characteristics vary with F
QCLK
rate. Reduced conversion accuracy occurs at max F
QCLK
rate. Using the
QADC pins as GPIO functions during conversions may result in degraded results. Best QADC conversion accuracy is
achieved at a frequency of 2 MHz.
F
QCLK
0.5 2.1 MHz
2
Conversion Cycles CC 14 28 QCLK
cycles
3
Conversion Time
F
QCLK
= 2.0 MHz 1
Min = CCW/IST =%00
Max = CCW/IST =%11 T
CONV
7.0 14.0
μ
s
4 Stop Mode Recovery Time T
SR
— 10
μ
s
5 Resolution
2
2 At V
RH
– V
RL
= 5.12 V, one count = 5 mV
— 5 — mV
6
Absolute (total unadjusted) error
3, 4, 5
F
QCLK
= 2.0 MHz
2
, 2 clock input sample time
3 Accuracy tested and guaranteed at V
RH
– V
RL
= 5.0V ± 0.5V
4 Current Coupling Ratio, K, is defined as the ratio of the output current, I
out
, measured on the pin under test to the
injection current, I
inj
, when both adjacent pins are overstressed with the specified injection current. K = I
out
/I
inj
. The
input voltage error on the channel under test is calculated as Verr = I
inj * K * R
S
.
5
Performance expected with production silicon.
AE
-2 2 Counts
7
Absolute (total unadjusted) error
3, 4, 5
F
QCLK
= 2.0 MHz
2
, 2 clock input sample time
—
-3 3 Counts
Table 33-12. SGFM Flash Program and Erase Characteristics
(V
DDF
= 2.7 to 3.6 V)
Parameter Symbol Min Typ Max Unit
System clock (read only) — MCF521x
System clock (read only) — MCF528x f
sys(R)
0
0 — 66.67
80
MHz
System clock (program/erase) 1 — MCF521x
System clock (program/erase)
1
— MCF528x
1
Refer to the Flash section for more information
f
sys(P/E)
0.15 — 66.67
80
MHz
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3