Rainbow Electronics AT89S53 - Manual (Page 23)

AT89S53
23
Flash Programming and Verification Characteristics – Parallel Mode
T
A
= 0°C to 70°C, V
CC
= 5.0V
± 10%
Symbol Parameter Min Max Units
V
PP
Programming Enable Voltage 11.5 12.5 V
I
PP
Programming Enable Current 1.0 mA
1/t
CLCL
Oscillator Frequency 3 24 MHz
t
AVGL
Address Setup to PROG Low 48t
CLCL
t
GHAX
Address Hold after PROG 48t
CLCL
t
DVGL
Data Setup to PROG Low 48t
CLCL
t
GHDX
Data Hold after PROG 48t
CLCL
t
EHSH
P2.7 (ENABLE) High to V
PP
48t
CLCL
t
SHGL
V
PP
Setup to PROG Low 10 µs
t
GLGH
PROG Width 1 110 µs
t
AVQV
Address to Data Valid 48t
CLCL
t
ELQV
ENABLE Low to Data Valid 48t
CLCL
t
EHQZ
Data Float after ENABLE 0 48t
CLCL
t
GHBL
PROG High to BUSY Low 1.0 µs
t
WC
Byte Write Cycle Time 2.0 ms