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MX27L256QI-25 Datasheet

  • MX27L256QI-25

  • 256K-BIT [32Kx8] LOW VOLTAGE OPERATION CMOS EPROM

  • 741.76KB

  • 14頁(yè)

  • MCNIX

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MX27L256
FEATURES
256K-BIT [32Kx8] LOW VOLTAGE OPERATION
CMOS EPROM
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Completely TTL compatible
Operating current: 10mA @ 3.6V, 5MHz
Standby current: 10uA
Package type:
- 28 pin plastic DIP
- 32 pin PLCC
- 28 pin 8 x 13.4mm TSOP(I)
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32K x 8 organization
Wide Voltage range, 2.7V to 3.6V DC
+12.5V programming voltage
Fast access time: 120/150/200/250 ns
Totally static operation
GENERAL DESCRIPTION
The MX27L256 is a 256K-bit, ultraviolet Erasable Pro-
grammable Read Only Memory. It is organized as 32K
by 8 bits, operates from a single + 3volt supply, has a
static standby mode, and features fast single address
location programming. All programming signals are TTL
levels, requiring a single pulse. For programming from
outside the system, existing EPROM programmers
may be used. The MX27L256 supports intelligent fast
programming algorithm which can result in program-
ming time of less than ten seconds.
This EPROM is packaged in industry standard 28 pin
dual-in-line packages, 32 lead PLCC, and 28 lead
TSOP(I) packages.
PIN CONFIGURATIONS
PDIP
VPP
A12
A7
A6
A5
A4
A3
A2
A1
A0
Q0
Q1
Q2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
A14
A13
A8
A9
A11
OE
A10
CE
Q7
Q6
Q5
Q4
Q3
BLOCK DIAGRAM
VCC
CE
OE
CONTROL
LOGIC
OUTPUT
BUFFERS
PLCC
VPP
A12
A14
A13
4
NC
A7
Q0~Q7
1
A6
A5
A4
A3
A2
A1
A0
NC
Q0
5
32
30
29
A8
A9
A11
NC
A0~A14
ADDRESS
INPUTS
.
.
.
.
.
.
.
.
Y-DECODER
.
.
.
.
.
.
.
.
Y-SELECT
MX27L256
9
MX27L256
25
OE
A10
CE
Q7
X-DECODER
256K BIT
CELL
MAXTRIX
13
14
Q1
Q2
GND
17
Q3
Q4
NC
21
20
Q5
Q6
VCC
GND
VPP
8 x 13.4mm 28 -TSOP(I)
OE
A11
A9
A8
A13
A14
VCC
VPP
A12
A7
A6
A5
A4
A3
22
23
24
25
26
27
28
1
2
3
4
5
6
7
21
20
19
18
17
16
15
14
13
12
11
10
9
8
A10
CE
Q7
Q6
Q5
Q4
Q3
GND
Q2
Q1
Q0
A0
A1
A2
PIN DESCRIPTION
SYMBOL
A0~A14
Q0~Q7
CE
OE
VPP
NC
VCC
GND
PIN NAME
Address Input
Data Input/Output
Chip Enable Input
Output Enable Input
Program Supply Voltage
No Internal Connection
Power Supply Pin
Ground Pin
MX27L256
P/N: PM0248
REV. 3.3, SEP. 19, 2001
1

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