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 AT27C256R a 0.1
碌
F capacitor is
required across V
PP
and ground to suppress spurious voltage
transients.
DC Programming Characteristics
T
A
= 25
卤
5掳C, V
CC
= 6.5
卤
0.25V, V
PP
= 13.0
卤
0.25V
Test
Conditions
V
IN
= V
IL
,V
IH
-0.6
2.0
I
OL
= 2.1 mA
I
OH
= -400
碌A
2.4
25
CE = V
IL
11.5
25
12.5
Limits
Min
Max
卤10
0.8
V
CC
+ 1
0.4
Symbol
Parameter
Input Load Current
Input Low Level
Input High Level
Output Low Volt.
Output High Volt.
V
CC
Supply Current
(Program and Verify)
V
PP
Current
A9 Product Identification Voltage
Units
碌
A
I
LI
V
IL
V
IH
V
OL
V
OH
I
CC2
I
PP2
V
ID
V
V
V
V
mA
mA
V
3-130
AT27C256R