at89c55-12qi ATMEL Corporation, at89c55-12qi Datasheet - Page 16

• Manufacturer Part Number: at89c55-12qi
• Description: 8-bit Microcontroller With Bytes Flash
• Manufacturer: ATMEL Corporation

Flash Programming and Verification Characteristics
T
Note:
16
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
= 21°C to 27°C, V
PP
CLCL
(1)
(1)
1. Only used in 12-volt programming mode.
(1)
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
Setup to PROG Low
Hold After PROG
CC
= 5.0V
AT89C55
10%
PP
48t
48t
48t
48t
48t
11.5
Min
10
10
CLCL
CLCL
CLCL
CLCL
CLCL
4
1
0
48t
48t
48t
Max
12.5
110
1.0
1.0
2.0
33
CLCL
CLCL
CLCL
Units
MHz
mA
ms
V
s
s
s
s