Programming Waveforms
(1)
Notes:
1. The Input Timing Reference is 0.8V for V
IL
and 2.0V for V
IH
.
2. t
OE
and t
DFP
are characteristics of the device but must be accommodated by the programmer.
3. When programming the AT27C040 a 0.1
µF
capacitor is required across V
PP
and ground to suppress spurious voltage
transients.
DC Programming Characteristics
T
A
= 25 ± 5°C, V
CC
= 6.5 ± 0.25V, V
PP
= 13.0 ± 0.25V
Limits
Symbol
I
LI
V
IL
V
IH
V
OL
V
OH
I
CC2
I
PP2
V
ID
Parameter
Input Load Current
Input Low Level
Input High Level
Output Low Voltage
Output High Voltage
V
CC
Supply Current (Program and Verify)
V
PP
Supply Current
A9 Product Identification Voltage
CE = V
IL
11.5
I
OL
= 2.1 mA
I
OH
= -400 µA
2.4
40
20
12.5
Test Conditions
V
IN
= V
IL
, V
IH
-0.6
2.0
Min
Max
±10
0.8
V
CC
+ 0.7
0.4
Units
µA
V
V
V
V
mA
mA
V
6
AT27C040
0189F–EPROM–4/03
ATMEL [ ATMEL CORPORATION ]
