AT29C257-12 ATMEL Corporation, AT29C257-12 Datasheet - Page 4

• Manufacturer Part Number: AT29C257-12
• Description: 256K 32K x 8 5-volt Only CMOS Flash Memory
• Manufacturer: ATMEL Corporation

DC and AC Operating Range
Operating Modes
Notes: 1. X can be V
DC Characteristics
4-108
I
I
I
I
I
V
V
V
V
V
Operating
Temperature (Case)
V
Mode
Read
Program
5V Chip Erase
Standby/Write Inhibit
Write Inhibit
Write Inhibit
Output Disable
High Voltage Chip Erase
Product Identification
Symbol
LI
LO
SB1
SB2
CC
IL
IH
OL
OH1
OH2
CC
Hardware
Software
Power Supply
2. Refer to AC Programming Waveforms.
3. V
(2)
H
= 12.0V
Input Load Current
Output Leakage Current
V
V
V
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Output High Voltage CMOS
(5)
CC
CC
CC
Parameter
Active Current
Standby Current CMOS
Standby Current TTL
IL
or V
0.5V.
AT29C257
Com.
Ind.
IH
.
V
CE
V
V
V
V
V
X
X
X
IH
IL
IL
IL
IL
IL
AT29C257-70
-40 C - 85 C
0 C - 70 C
5V
5%
Condition
V
V
CE = V
CE = 2.0V to V
f= 5 MHz; I
I
I
I
OE
V
V
V
V
OL
OH
OH
V
X
V
V
X
IN
I/O
IH
IH
IH
H
IL
IL
IL
(1)
= 2.1 mA
= 0V to V
= -400 A
= -100 A; V
= 0V to V
3
CC
AT29C257-90
- 0.3V to V
OUT
-40 C - 85 C
WE
V
0 C - 70 C
V
V
V
V
V
5V
X
X
X
CC
IL
IH
IH
IH
IL
IL
CC
4. Manufacturer Code: 1F, Device Code: DC
5. See details under Software Product Identification Entry/Exit.
CC
= 0 mA
CC
10%
= 4.5V
CC
A1 - A14 = V
A1 - A14 = V
A0 = V
A0 = V
A0 = V
A0 = V
Ai
Ai
Ai
Ai
X
X
AT29C257-12
-40 C - 85 C
IL
IL
0 C - 70 C
, A9 = V
, A9 = V
5V
IH
IH
IL
IL
Min
2.0
2.4
4.2
10%
H
H
,
,
I/O
D
D
High Z
High Z
High Z
Manufacturer Code
Device Code
Manufacturer Code
Device Code
OUT
IN
Max
300
0.8
.45
10
10
50
3
AT29C257-15
-40 C - 85 C
0 C - 70 C
5V
(4)
(4)
10%
Units
mA
mA
V
V
V
V
V
A
A
A
(4)
(4)