INDEX
MX26C512A
512K-BIT [64K x 8] CMOS
MULTIPLE-TIME-PROGRAMMABLE EPROM
FEATURES
• 64K x 8 organization
• Operating current: 30mA
• +5V operating power supply
• +12.75V program/erase voltage
• Electric erase instead of UV light erase
• Fast access time: 70/90/100/120/150 ns
• Totally static operation
• Standby current: 100uA
• 100 minimum erase/program cycles
• Package type:
- 28 pin plastic DIP
- 28 pin SOP
- 32 pin PLCC
- 28 pin TSOP(I)
• Completely TTL compatible
GENERAL DESCRIPTION
The MX26C512A is a 12.75V/5V, 512K-bit, MTP
EPROMTM (Multiple Time Programmable Read Only
Memory). It is organized as 64K words by 8 bits per word,
operates from a + 5 volt supply, has a static standby
mode, andfeaturesfastsingleaddresslocationprogram-
ming. It is designed to be reprogrammed and erased by
an EPROM programmer or on-board. All programming/
erasing signals are TTL levels, requiring a single pulse.
The MX26C512A supports an intelligent quick pulse
programming algorithm which can result in a program-
ming time of less than 30 seconds.
This MTP EPROMTM is packaged in industry standard 28
pin dual-in-line packages, 32 pin PLCC packages or 28
pin TSOP packages and 28 pin SOP packages.
BLOCK DIAGRAM
PIN CONFIGURATIONS
PDIP/SOP
PLCC
CE
CONTROL
LOGIC
OUTPUT
Q0~Q7
BUFFERS
VCC
A14
A13
A8
A15
A12
A7
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
OE
2
4
1
32
30
29
5
A6
A5
A4
A3
A2
A1
A0
NC
Q0
A8
3
A6
4
A9
A9
A5
5
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Y-DECODER
X-DECODER
Y-SELECT
A11
NC
A11
OE/VPP
A10
CE
A4
6
A3
7
A0~A15
ADDRESS
INPUTS
A2
8
9
MX26C512A
25
OE/VPP
A10
CE
512K BIT
CELL
A1
9
Q7
A0
10
11
12
13
14
MAXTRIX
Q6
Q0
Q1
Q2
GND
Q5
Q7
Q4
13
14
21
Q6
Q3
17
20
VPP
VCC
GND
PIN DESCRIPTION
TSOP
SYMBOL
A0~A15
Q0~Q7
CE
PIN NAME
OE/VPP
A11
A9
22
23
24
25
26
27
28
1
21
20
19
18
17
16
15
14
13
12
11
10
9
A10
CE
Q7
Q6
Q5
Q4
Q3
GND
Q2
Q1
Q0
A0
Address Input
A8
Data Input/Output
Chip Enable Input
A13
A14
VCC
A15
A12
A7
MX26C512A
OE
Output Enable Input
Program Supply Voltage
No Internal Connection
Power Supply Pin (+5V)
Ground Pin
2
3
VPP
A6
4
A5
5
NC
A4
6
A1
VCC
A3
7
8
A2
GND
REV.1.8, JUL. 13 , 1998
P/N: PM0455
Patent#: US#5,523,307
1