AT80F51-12PC View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT80F51-12PC' PDF : 12 Pages View PDF
Figure 3. Verifying the QuickFlash
AT80F51
A0 - A7
ADDR.
P1
VCC
OOOOH/0FFFH
P2.0 - P2.3 P0
A8 - A11
P2.6
SEE QUICK FLASH
VERIFICATION
MODES TABLE
P2.7
ALE
P3.6
P3.7
XTAL 2
EA
+5V
PGM DATA
(USE 10K
PULLUPS)
VIH
3-20 MHz
XTAL1
RST
VIH
GND
PSEN
QuickFlash Verification Characteristics
TA = 0°C to 70°C, VCC = 5.0 ± 10%
Symbol
Parameter
Min
1/tCLCL
Oscillator Frequency
3
tAVQV
Address to Data Valid
tELQV
ENABLE Low to Data Valid
tEHQZ
Data Float After ENABLE
0
QuickFlash Verification Waveforms
P1.0 - P1.7
P2.0 - P2.3
PORT 0
ALE
VERIFICATION
ADDRESS
tAVQV
DATA OUT
LOGIC 1
LOGIC 0
EA
P2.7
(ENABLE)
tELQV
LOGIC 1
LOGIC 0
tEHQZ
Max
20
48tCLCL
48tCLCL
48tCLCL
3-8
AT80F51
Units
MHz
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