XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 543

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

28.2.14 FLASH Memory Characteristics
MC68HC908AZ60A — Rev 2.0
MOTOROLA
1.
2. If the page erase time is longer than
3. If the mass erase time is longer than
4.
5.
6. The minimum row erase endurance value specifies each row of the FLASH memory is guaranteed to work for at least this
7. The minimum row program endurance value specifies each row of the FLASH memory is guaranteed to work for at least
8. The FLASH is guaranteed to retain data over the entire operating temperature range for at least the minimum time spec-
memory.
memory.
t
HVEN to logic 0.
t
t
many erase cycles.
this many program cycles.
ified.
FLASH PGM/ERASE to HVEN Set Up Time
f
RCV
HV
HV
READ
FLASH Cumulative Program HV Period
FLASH High Voltage Hold Time (Mass)
FLASH Program Bus Clock Frequency
is defined as the cumulative high voltage programming time to the same row before next erase.
must satisfy this condition:
is defined as the time it needs before the FLASH can be read after turning off the high voltage charge pump by clearing
FLASH Read Bus Clock Frequency
FLASH Row Program Endurance
FLASH Row Erase Endurance
FLASH High Voltage Hold Time
FLASH Data Retention Time
is defined as the frequency range for which the FLASH memory can be read.
FLASH Return to Read Time
FLASH Program Hold Time
FLASH Mass Erase Time
FLASH Page Erase Time
FLASH Program Time
Characteristic
t
NVS
+
t
t
NVH
t
MERASE
ERASE
(8)
(6)
+ t
(7)
(M
PGS
(M
Electrical Specifications
IN
IN
+ (
),
),
there is no erase-disturb, but it reduces the endurance of the FLASH
t
PROG
there is no erase-disturb, but it reduces the endurance of the FLASH
X 64)
ð t
t
Symbol
M
f
t
HV
READ
ERASE
t
ERASE
t
t
t
RCV
t
t
t
PROG
HV
NVH
NVS
NVH
PGS
max.
—
(5)
(4)
L
(2)
(1)
(3)
10,000
10,000
32K
Min
100
10
30
10
—
1
1
4
5
5
1
Electrical Specifications
Electrical Specifications
8.4M
Max
40
—
—
—
—
—
—
—
—
—
—
4
Technical Data
cycles
cycles
years
MHz
Unit
Hz
ms
ms
ms
µ s
µ s
µ s
µ s
µ s
µ s
543