![](http://datasheet.mmic.net.cn/Atmel/AT87C52X2-RLRUM_datasheet_96434/AT87C52X2-RLRUM_48.png)
48
TS8xCx2X2
4184I–8051–02/08
EPROM Programming and
Verification Characteristics
TA = 21°C to 27°C; VSS = 0V; VCC = 5V ± 10% while programming. VCC = operating
range while verifying.
EPROM Programming and
Verification Waveforms
Figure 22. EPROM Programming and Verification Waveforms
Table 35. EPROM Programming Parameters
Symbol
Parameter
Min
Max
Units
VPP
Programming Supply Voltage
12.5
13
V
IPP
Programming Supply Current
75
mA
1/TCLCL
Oscillator Frquency
4
6
MHz
TAVGL
Address Setup to PROG Low
48 TCLCL
TGHAX
Adress Hold after
PROG
48 TCLCL
TDVGL
Data Setup to PROG Low
48 TCLCL
TGHDX
Data Hold after PROG
48 TCLCL
TEHSH
(Enable) High to VPP
48 TCLCL
TSHGL
VPP Setup to PROG Low
10
s
TGHSL
VPP Hold after PROG
10
s
TGLGH
PROG Width
90
110
s
TAVQV
Address to Valid Data
48 TCLCL
TELQV
ENABLE Low to Data Valid
48 TCLCL
TEHQZ
Data Float after ENABLE
0
48 TCLCL
TGHSL
TEHSH
ALE/PROG
TAVGL
TDVGL
P0
P1.0-P1.7
P2.0-P2.5
P3.4-P3.5*
P
EA/VPP
CONTROL
SIGNALS
(ENABLE)
ADDRESS
DATA IN
VCC
VPP
VCC
TGHAX
TGHDX
TGLGH
TSHGL
ADDRESS
DATA OUT
TAVQV
TELQV
TEHQZ
PROGRAMMING
VERIFICATION
* 8KB: up to P2.4, 16KB: up to P2.5, 32KB: up to P3.4, 64KB: up to P3.5