MC68HC908JL8 MOTOROLA [Motorola, Inc], MC68HC908JL8 Datasheet - Page 278

• Manufacturer Part Number: MC68HC908JL8
• Description: Motorola reserves the right to make changes without further notice to any products herein
• Manufacturer: MOTOROLA [Motorola, Inc]

Electrical Specifications
19.15 Memory Characteristics
Technical Data
278
NOTES:
RAM data retention voltage
FLASH program bus clock frequency
FLASH read bus clock frequency
FLASH page erase time
FLASH mass erase time
FLASH PGM/ERASE to HVEN set up time
FLASH high-voltage hold time
FLASH high-voltage hold time (mass erase)
FLASH program hold time
FLASH program time
FLASH return to read time
FLASH cumulative program hv period
FLASH row erase endurance
FLASH row program endurance
FLASH data retention time
1. f
2. If the page erase time is longer than t
3. If the mass erase time is longer than t
4. t
5. t
6. The minimum row endurance value specifies each row of the FLASH memory is guaranteed to work for at least this many
7. The minimum row endurance value specifies each row of the FLASH memory is guaranteed to work for at least this many
8. The FLASH is guaranteed to retain data over the entire operating temperature range for at least the minimum time speci-
memory.
memory.
HVEN to logic 0.
t
erase / program cycles.
erase / program cycles.
fied.
rcv
read
HV
HV
is defined as the time it needs before the FLASH can be read after turning off the high voltage charge pump, by clearing
is defined as the cumulative high voltage programming time to the same row before next erase.
must satisfy this condition: t
is defined as the frequency range for which the FLASH memory can be read.
Characteristic
(8)
(6)
Freescale Semiconductor, Inc.
nvs
(7)
Table 19-12. Memory Characteristics
For More Information On This Product,
+ t
nvh
merase
erase
+ t
pgs
Go to: www.freescale.com
(Min), there is no erase-disturb, but it reduces the endurance of the FLASH
(Min), there is no erase-disturb, but it reduces the endurance of the FLASH
Electrical Specifications
+ (t
prog
×
32) ≤ t
t
Symbol
merase
HV
t
f
erase
V
read
t
t
t
rcv
HV
t
t
t
t
prog
nvhl
RDR
—
pgs
—
—
—
nvs
nvh
max.
(4)
(5)
(1)
(2)
(3)
Min
32k
10k
10k
100
1.3
10
30
10
—
1
4
4
5
5
1
MC68HC908JL8
Max
8M
40
—
—
—
—
—
—
—
—
—
—
—
—
4
MOTOROLA
—
cycles
cycles
years
Rev. 2.0
MHz
Unit
Hz
ms
ms
ms
µ s
µ s
µ s
µ s
µ s
µ s
V