at89c4051-12sa ATMEL Corporation, at89c4051-12sa Datasheet - Page 8

• Manufacturer Part Number: at89c4051-12sa
• Description: 8-bit Microcontroller With 4k Bytes Flash
• Manufacturer: ATMEL Corporation

Figure 3. Programming the Flash Memory
Flash Programming and Verification Characteristics
T
Note:
8
A
Symbol
V
I
t
t
t
t
t
t
t
t
t
t
t
t
PP
DVGL
GHDX
EHSH
SHGL
GHSL
GLGH
ELQV
EHQZ
GHBL
WC
BHIH
IHIL
PP
= 0°C to 70°C, V
1. Only used in 12-volt programming mode.
CC
Parameter
Programming Enable Voltage
Programming Enable Current
Data Setup to PROG Low
Data Hold After PROG
P3.4 (ENABLE) High to V
V
V
PROG Width
ENABLE Low to Data Valid
Data Float After ENABLE
PROG High to BUSY Low
Byte Write Cycle Time
RDY/BSY\ to Increment Clock Delay
Increment Clock High
= 5.0
AT89C4051
PP
PP
Setup to PROG Low
Hold After PROG
AT89C4051
10%
PP
PP
Figure 4. Verifying the Flash Memory
11.5
Min
200
1.0
1.0
1.0
1.0
10
10
1
0
AT89C4051
Max
12.5
250
110
1.0
1.0
2.0
50
Units
ms
ns
ns
V
A
s
s
s
s
s
s
s
s
s