UVEPROM
Austin Semiconductor, Inc.
FUNCTIONAL BLOCK DIAGRAM*
EPROM 131,072 x 8
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
E\
G\
12
11
10
9
8
7
6
5
27
26
23
25
4
28
29
3
2
22
24
0
SMJ27C010A
AS27C010A
A
0
131,071
A
A
A
A
A
A
A
A
13
14
15
17
18
19
20
21
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
16
[PWR DWN]
&
EN
* This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. J package illustrated.
OPERATION
The seven modes of operation are listed in Table 1. The read mode requires a single 5V supply. All inputs are TTL level
except for V
PP
during programming (13V for SNAP! Pulse), and 12V on A9 for signature mode.
TABLE 1. OPERATION MODES
MODE*
FUNCTION
E\
G\
PGM\
V
PP
V
CC
A9
A0
DQ0-DQ7
READ
V
IL
V
IL
X
V
CC
V
CC
X
X
Data Out
PROGRAM
OUTPUT
SIGNATURE MODE
STANDBY PROGRAMMING VERIFY
DISABLE
INHIBIT
V
IL
V
IL
V
IH
V
IL
V
IL
V
IH
V
IH
X
V
CC
V
CC
X
X
High-Z
X
X
V
CC
V
CC
X
X
High-Z
V
IH
V
IL
V
PP
V
CC
X
X
Data In
V
IL
V
IH
V
PP
V
CC
X
X
Data Out
X
X
V
PP
V
CC
X
X
High-Z
V
H
**
V
IL
V
IL
X
V
CC
V
CC
V
H
**
V
IH
CODE
MFG
DEVICE
97
D6
* X can be V
IL
or V
IH
.
**V
H
= 12V ± 0.5V
SMJ27C010A
AS27C010A
Rev. 2.1 6/05
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
2
AUSTIN [ AUSTIN SEMICONDUCTOR ]
