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MX27C256 Datasheet(PDF) 1 Page - Macronix International

Part # MX27C256
Description  256K-BIT [32K x 8] CMOS EPROM
Download  15 Pages
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Manufacturer  MCNIX [Macronix International]
Direct Link  http://www.macronix.com
Logo MCNIX - Macronix International

MX27C256 Datasheet(HTML) 1 Page - Macronix International

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SYMBOL
PIN NAME
A0~A14
Address Input
Q0~Q7
Data Input/Output
CE
Chip Enable Input
OE
Output Enable Input
VPP
Program Supply Voltage
NC
No Internal Connection
VCC
Power Supply Pin (+5V)
GND
Ground Pin
GENERAL DESCRIPTION
The MX27C256 is a 5V only, 256K-bit, One-Time
Programmable Read Only Memory. It is organized as
32K by 8 bits, operates from a single + 5volt 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
FEATURES
• 32K x 8 organization
• Single +5V power supply
• +12.5V programming voltage
• Fast access time: 45/55/70/90/100/120/150 ns
• Totally static operation
• Completely TTL compatible
• Operating current: 30mA
• Standby current: 100uA
• Package type:
- 28 pin plastic DIP
- 32 pin PLCC
- 28 pin 8 x 13.4mm TSOP(I)
1
PIN CONFIGURATIONS
PDIP
may be used. The MX27C256 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.
REV. 5.6, AUG. 26, 2003
P/N: PM0203
BLOCK DIAGRAM
PIN DESCRIPTION
PLCC
8 x 13.4mm 28-TSOP(I)
MX27C256
256K-BIT [32K x 8] CMOS EPROM
1
4
5
9
13
14
17
20
21
25
29
32
30
A8
A9
A11
NC
OE
A10
CE
Q7
Q6
A6
A5
A4
A3
A2
A1
A0
NC
Q0
MX27C256
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VPP
A12
A7
A6
A5
A4
A3
A2
A1
A0
Q0
Q1
Q2
GND
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
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
A10
CE
Q7
Q6
Q5
Q4
Q3
GND
Q2
Q1
Q0
A0
A1
A2
21
20
19
18
17
16
15
14
13
12
11
10
9
8
MX27C256
CONTROL
LOGIC
OUTPUT
BUFFERS
Q0~Q7
CE
OE
A0~A14
ADDRESS
INPUTS
Y-DECODER
X-DECODER
Y-SELECT
256K BIT
CELL
MAXTRIX
VCC
GND
VPP
.
.
.
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