PRELIMINARY
MX27C4000A
4M-BIT [512K x8] CMOS OTP ROM
FEATURES
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•
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•
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512K x 8 organization
Single +5V power supply
+12.5V programming voltage
Fast access time: 90/100/120/150 ns
Totally static operation
Completely TTL compatible
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Operating current: 40mA
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Standby current: 100uA
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Package type:
-
-
-
-
32 pin PDIP
32 pin PLCC
32 pin SOP
32 pin TSOP
GENERAL DESCRIPTION
The MX27C4000A is a 5V only, 4M-bit, One Time
Programmable Read Only Memory. It is organized as
512K words by 8 bits per word, operates from a single
+5 volt supply, has a static standby mode, and features
fast single address location programming. All program-
ming signals are TTL levels, requiring a single pulse. For
programming outside from the system, existing EPROM
programmers may be used. The MX27C4000A
supports a intelligent fast programming algorithm which
can result in programming time of less than two minutes.
This One Time Programmable Read Only Memory is
packaged in industry standard 32 pin dual-in-line plastic,
32 lead PLCC, 32 lead SOP, 32 lead TSOP packages.
PIN CONFIGURATIONS
32 PDIP/SOP
VPP
A16
A15
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
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
A18
A17
A14
A13
A8
A9
A11
OE
A10
CE
Q7
Q6
Q5
Q4
Q3
32 PLCC
VCC
VPP
A12
A15
A16
A18
4
1
32
30
29
A17
A7
A6
A5
A4
A3
A2
A1
A0
Q0
5
A14
A13
A8
A9
MX27C4000A
9
MX27C4000A
25
A11
OE
A10
CE
13
14
17
21
20
Q7
Q1
Q2
Q3
Q4
Q5
32 TSOP
A11
A9
A8
A13
A14
A17
A18
VCC
VPP
A16
A15
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A10
CE
Q7
Q6
Q5
Q4
Q3
GND
Q2
Q1
Q0
A0
A1
A2
A3
PIN DESCRIPTION
SYMBOL
A0~A18
Q0~Q7
CE
OE
VPP
VCC
GND
PIN NAME
Address Input
Data Input/Output
Chip Enable Input
Output Enable Input
Program Supply Voltage
Power Supply Pin (+5V)
Ground Pin
MX27C4000A
P/N: PM00694
GND
1
Q6
REV. 1.6, JUL. 19, 2001