Datasheet

Electrical Characteristics
MC68HC812A4 Data Sheet, Rev. 7
226 Freescale Semiconductor
18.9 ATD AC Operating Characteristics
18.10 EEPROM Characteristics
Characteristic
(1)
1. V
DD
= 5.0 Vdc ± 10%, V
SS
= 0 Vdc, T
A
= T
L
to T
H
, ATD clock = 2 MHz, unless otherwise noted
Symbol Min Max Unit
ATD operating clock frequency
f
ATDCL K
0.5 2.0 MHz
Conversion time per channel
0.5 MHz ≤ f
ATDCL K
≤ 2 MHz
18 ATD clocks
32 ATD clocks
t
CONV
8.0
15.0
32.0
60.0
µs
Stop recovery time
V
DDA
= 5.0 V
t
SR
—50µs
Characteristic
(1)
1. V
DD
= 5.0 Vdc ± 10%, V
SS
= 0 Vdc, T
A
= T
L
to T
H
, unless otherwise noted
Symbol Min Typical Max Unit
Minimum programming clock frequency
(2)
2. RC oscillator must be enabled if programming is desired and f
SYS
< f
PROG
.
f
PROG
4.0 — — MHz
Programming time
t
PROG
10.0 — 10.5 ms
Clock recovery time following STOP, to continue programming
t
CRSTOP
——
t
PROG
+ 1
ms
Erase time
t
Erase
10.0 — 10.5 ms
Write/erase endurance — 10,000
30,000
(3)
3. If average T
H
is below 85°C
— Cycles
Data retention — 10 — — Years