AT89S8252
Flash Programming and Verification Characteristics – Parallel Mode
TA = 0°C to 70°C, VCC = 5.0V ± 10%
Symbol
VPP
Parameter
Min
Max
12.5
1.0
Units
V
Programming Enable Voltage
Programming Enable Current
Oscillator Frequency
11.5
IPP
mA
1/tCLCL
tAVGL
tGHAX
tDVGL
tGHDX
tEHSH
tSHGL
tGLGH
tAVQV
tELQV
tEHQZ
tGHBL
tWC
3
24
MHz
Address Setup to PROG Low
Address Hold after PROG
Data Setup to PROG Low
Data Hold after PROG
P2.7 (ENABLE) High to VPP
VPP Setup to PROG Low
PROG Width
48tCLCL
48tCLCL
48tCLCL
48tCLCL
48tCLCL
10
µs
µs
1
110
48tCLCL
48tCLCL
48tCLCL
1.0
Address to Data Valid
ENABLE Low to Data Valid
Data Float after ENABLE
PROG High to BUSY Low
Byte Write Cycle Time
0
µs
2.0
ms
Flash/EEPROM Programming and Verification Waveforms – Parallel Mode
29
0401G–MICRO–3/06
ATMEL [ ATMEL ]
