at89lv52 ATMEL Corporation, at89lv52 Datasheet - Page 14

• Manufacturer Part Number: at89lv52
• Description: 8-bit Microcontroller With 8k Bytes Flash With 8k Bytes Flash
• Manufacturer: ATMEL Corporation

Figure 9. Programming the Flash Memory
Flash Programming and Verification Characteristics
T
Note:
4-96
A
Symbol
V
I
1/t
t
t
t
t
t
t
t
t
t
t
t
t
t
PP
AVGL
GHAX
DVGL
GHDX
EHSH
SHGL
GHSL
GLGH
AVQV
ELQV
EHQZ
GHBL
WC
PP
= 0°C to 70°C, V
CLCL
(1)
(1)
(1)
1. Only used in 12-volt programming mode.
Parameter
Programming Enable Voltage
Programming Enable Current
Oscillator Frequency
Address Setup to PROG Low
Address Hold After PROG
Data Setup to PROG Low
Data Hold After PROG
P2.7 (ENABLE) High to V
V
V
PROG Width
Address to Data Valid
ENABLE Low to Data Valid
Data Float After ENABLE
PROG High to BUSY Low
Byte Write Cycle Time
PP
PP
CC
Setup to PROG Low
Hold After PROG
= 5.0 10%
Not
PP
V CC
Figure 10. Verifying the Flash Memory
48t
48t
48t
48t
48t
11.5
Min
10
10
3
CLCL
CLCL
CLCL
CLCL
CLCL
1
0
48t
48t
48t
Max
12.5
110
1.0
2.0
25
12
CLCL
CLCL
CLCL
V
CC
Units
MHz
ms
V
A
s
s
s
s