27C256T
256K (32K x 8-Bit) OTP EPROM
6. If V is over the specified maximum value, programming operation can not be guaranteed.
IH
7. V min = -0.6V for pulse width < 20 ns.
IL
TABLE 10. 27C256T MODE SELECTION
V
V
A
9
MODE
CE
OE
PGM
I/O
PP
CC
1
Read
V
V
V
V
V
X
X
X
X
X
X
X
X
X
X
X
DOUT
CC
CC
IL
IL
IH
Output Disable
Standby
V
V
V
V
V
High-Z
High-Z
CC
CC
IL
IH
IH
V
V
V
X
X
CC
CC
IH
Program
V
V
V
V
V
D
PP
CC
IL
IH
IL
IN
Program Verify
Page Data Latch
Page Program
Program Inhibit
V
V
V
V
V
DOUT
PP
CC
IL
IL
IH
V
V
V
V
V
D
PP
CC
IH
IL
IH
IN
V
V
V
V
V
High-Z
High-Z
High-Z
High-Z
High-Z
ID
PP
CC
IH
IH
IL
V
V
V
V
V
CC
CC
IL
IL
IL
V
V
V
V
V
PP
CC
IL
IH
IH
V
V
V
V
V
PP
CC
IH
IL
IL
V
V
V
V
V
PP
CC
IH
IH
IH
Identifier
V
V
V
V
V
V 2
CC
CC
IL
IL
IH
H
1. X = Don’t care. V =0V to V
PP
CC
2. 11.5V < V < 12.5V.
H
06.24.03 REV 4
All data sheets are subject to change without notice
6
©2003 Maxwell Technologies
All rights reserved.
MAXWELL [ MAXWELL TECHNOLOGIES ]
