SMJ27C256-30JM データシートの表示（PDF） - Austin Semiconductor
部品番号
コンポーネント説明
メーカー
SMJ27C256-30JM Datasheet PDF : 11 Pages
| |||
Austin Semiconductor, Inc.
UVEPROM
SMJ27C256
FUNCTIONAL BLOCK DIAGRAM*
A0 10
A1 9
A2
A3
8
7
A4
A5
A6
6
5
4
A7
A8
A9
3
25
24
21
A10
A11
A12
A13
A14
23
2
26
27
E\ 20
G\ 22
EPROM 32,768 x 8
0
A
A
A
A0
32,767
A
A
A
A
A
14
[PWR DWN]
&
EN
11
12
13
15
16
17
18
19
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
* This symbol is in accordance with ANSI/IEEE std 91-1984 and IEC Publication 617-12.
OPERATION
The seven modes of operation for the SMJ27C256 are listed in Table 1. The read mode requires a single 5V supply. All
inputs are TTL level except for VPP during programming (13V for SNAP! Pulse), and (12V) on A9 for signature mode.
TABLE 1. OPERATION MODES
FUNCTION
(PINS)
MODE*
READ OUTPUT STANDBY PROGRAMMING VERIFY PROGRAM SIGNATURE MODE
DISABLE
INHIBIT
E\ (20)
VIL
VIL
VIH
VIL
VIH
VIH
VIL
G\ (22)
VIL
VIH
X
VIH
VIL
X
VIL
VPP (1)
VCC
VCC
VCC
VPP
VPP
VPP
VCC
VCC (28)
VCC
VCC
VCC
VCC
VCC
VCC
VCC
A9 (24)
X
X
X
X
X
X
VID
VID
A0 (10)
X
X
DQ0-DQ7
(11-13, 15-19)
Data Out
High-Z
X
High-Z
X
Data In
X
X
Data Out High-Z
VIL
VIH
CODE
MFG DEVICE
97
04
* X can be VIL or VIH.
SMJ27C256
Rev. 1.0 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
2
Share Link: 