
M
5
All data sheets are subject to change without notice
2003 Maxwell Technologies
All rights reserved.
512K (64K x 8-Bit) OTP EPROM
27C512T
06.24.03 REV 4
T
ABLE
8. 27C512T AC E
LECTRICAL
C
HARACTERISTICS
FOR
P
ROGRAMMING
O
PERATION
1,2
(V
CC
= 6.0V + 0.25V, V
PP
= 12.5V + 0.3V, T
A
= 25
°
C)
1. t
DF
is defined as the time at which the output becomes an open circuit and data is no longer driven.
2. AC electrical parameters for programmng operations are not tested. These are guaranteed by design.
3. Test Conditions:
- Input pulse levels
0.45V/2.4V
- Input rise and fall times
< 20 ns
- Referenced levels for measuring timng
0.8V/2.0V
P
ARAMETER
S
YMBOL
S
UBGROUPS
M
IN
T
YP
M
AX
U
NIT
Address Setup Time
t
AS
t
AH
t
DS
t
DH
t
VPS
t
VCS
t
OES
t
DF3
t
PW
t
OPW
t
OEH
t
VR
t
DV
9, 10, 11
2
--
--
μs
Address Hold Time
9, 10, 11
0
--
--
μs
Data Setup Time
9, 10, 11
2
--
--
μs
Data Hold Time
9, 10, 11
2
--
--
μs
V
PP
Setup Time
V
CC
Setup Time
Output Enable Setup Time
9, 10, 11
2
--
--
μs
9, 10, 11
2
--
--
μs
9, 10, 11
2
--
--
μs
Output Disable Time
9, 10, 11
0
--
130
ns
CE Initial Programmng Pulse Width
9, 10, 11
0.19
0.20
0.21
ms
CE Overprogrammng Pulse Width
9, 10, 11
0.19
--
5.25
ms
Output Enable Hold Time
9, 10, 11
2
--
--
μs
V
PP
Recovery Time
Data Valid fromChip Enable
9, 10, 11
2
--
--
μs
9, 10, 11
1
--
--
μs
T
ABLE
9. 27C512T DC E
LECTRICAL
C
HARACTERISTICS
FOR
P
ROGRAMMING
O
PERATIONS1,2,3,4
(V
CC
= 6.0V + 0.25V, V
PP
= 12.5V + 0.3V, T
A
= 25
°
C)
1. V
CC
must be applied before V
PP
and removed after V
PP
.
2. V
PP
must not exceed 13V, including overshoot.
3. Do not change V
PP
fromV
IL
to 12.5V or 12.5V to V
IL
when CE = low
4. DC electrical parameters for programmng operations are not tested. These are guaranteed by design.
5. Device reliability may be adversely affected if the device is installed or removed while V
PP
= 12.5V.
P
ARAMETER
T
EST
C
ONDITION
S
YMBOL
S
UBGROUPS
M
IN
M
AX
U
NIT
Input Leakage Current
V
IN
=0V to V
CC
I
LI
I
CC
I
PP
V
IH
V
IL
V
OH
V
OL
1, 2, 3
--
2
μA
Operating V
CC
Current
Operating V
PP
Current
Input Voltage
5
1, 2, 3
--
30
mA
CE=PGM=V
IL
1, 2, 3
--
40
mA
1, 2, 3
2.2
V
CC
+0.5
6
0.8
V
1, 2, 3
-0.1
7
Output Voltage
I
OH
=-400μA
I
OH
= 2.1mA
1, 2, 3
2.4
--
V
1, 2, 3
--
0.45