mc68hc912bc32 Freescale Semiconductor, Inc, mc68hc912bc32 Datasheet - Page 313

• Manufacturer Part Number: mc68hc912bc32
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

19.10 ATD AC Operating Characteristics (Operating)
19.11 EEPROM Characteristics
Freescale Semiconductor
MCU clock frequency (p-clock)
ATD operating clock frequency
ATD 8-bit conversion period
ATD 10-bit conversion period
Stop and ATD power-up recovery time
Minimum programming clock frequency
Programming time
Clock recovery time, following STOP, to continue programming
Erase time
Write/erase endurance
Data retention
1. V
2. The minimum time assumes a final sample period of 2 ATD clock cycles while the maximum time assumes a final sample
3. This assumes an ATD clock frequency of 2.0 MHz.
4. From the time ADPU is asserted until the time an ATD conversion can begin
1. V
2. RC oscillator must be enabled if programming is desired and f
ATD clock cycles
ATD conversion time
ATD clock cycles
ATD conversion time
V
DDA
period of 16 ATD clocks.
DD
DD
= 5.0 V
= 5.0 Vdc ± 10%, V
= 5.0 Vdc ± 10%, V
(2)
(2)
(3)
(3)
Characteristic
SS
SS
Characteristic
= 0 Vdc, T
= 0 Vdc, T
(4)
(2)
(1)
A
A
M68HC12B Family Data Sheet, Rev. 9.1
= T
= T
(1)
L
L
to T
to T
H
H
, ATD clock = 2 MHz, unless otherwise noted
, unless otherwise noted
SYS
< f
Symbol
t
CRSTOP
t
f
t
ERASE
PROG
PROG
PROG
—
—
ATD AC Operating Characteristics (Operating)
.
n
Symbol
t
f
n
t
CONV10
ATDCLK
CONV10
f
CONV8
CONV8
PCLK
t
SR
10,000
10.0
10.0
Min
1.0
10
—
10.0
Min
Typ
2.0
0.5
18
20
—
—
—
—
—
—
—
9
t
PROG
Max
Max
10.5
10.5
8.0
2.0
32
16
34
17
10
—
—
—
+ 1
Cycles
Cycles
Cycles
Years
Unit
MHz
MHz
MHz
Unit
ms
ms
ms
µs
µs
µs
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