AT80C51RA2-3CSCV View Datasheet(PDF) - International Rectifier
Part Name
Description
MFG CO.
'AT80C51RA2-3CSCV' PDF : 85 Pages View PDF
11.5.9
EPROM Programming and Verification Characteristics
TA = 21°C to 27°C; VSS = 0V; VCC = 5V ± 10% while programming. VCC = operating range while
Symbol
Parameter
Min
Max
Units
VPP
IPP
1/TCLCL
TAVGL
TGHAX
TDVGL
TGHDX
TEHSH
TSHGL
TGHSL
TGLGH
TAVQV
TELQV
TEHQZ
Programming Supply Voltage
Programming Supply Current
Oscillator Frquency
Address Setup to PROG Low
Adress Hold after PROG
Data Setup to PROG Low
Data Hold after PROG
(Enable) High to VPP
VPP Setup to PROG Low
VPP Hold after PROG
PROG Width
Address to Valid Data
ENABLE Low to Data Valid
Data Float after ENABLE
12.5
4
48 TCLCL
48 TCLCL
48 TCLCL
48 TCLCL
48 TCLCL
10
10
90
0
13
V
75
mA
6
MHz
μs
μs
110
μs
48 TCLCL
48 TCLCL
48 TCLCL
verifying
11.5.10 EPROM Programming and Verification Waveforms
Figure 11-10. EPROM Programming and Verification Waveforms
PROGRAMMING
P1.0-P1.7
P2.0-P2.5
P3.4-P3.5*
ADDRESS
P0
DATA IN
TDVGL
TAVGL
TGHDX
TGHAX
ALE/PROG
TSHGL
TGLGH
TGHSL
EA/VPP
VCC
CONTROL
TEHSH
VPP
VCC
TELQV
SIGNALS
(ENABLE)
* 8KB: up to P2.4, 16KB: up to P2.5, 32KB: up to P3.4, 64KB: up to P3.5
VERIFICATION
ADDRESS
TAVQV
DATA OUT
TEHQZ
70 AT/TS8xC51Rx2
4188E–8051–08/06
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