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STMicroelectronics Electronic Components Datasheet

M27C800 Datasheet

8 Mbit 1Mb x8 or 512Kb x16 UV EPROM and OTP EPROM

No Preview Available !

M27C800
8 Mbit (1Mb x8 or 512Kb x16) UV EPROM and OTP EPROM
s 5V ± 10% SUPPLY VOLTAGE in READ
OPERATION
s ACCESS TIME: 50ns
s BYTE-WIDE or WORD-WIDE
CONFIGURABLE
s 8 Mbit MASK ROM REPLACEMENT
s LOW POWER CONSUMPTION
– Active Current 70mA at 8MHz
– Stand-by Current 50µA
s PROGRAMMING VOLTAGE: 12.5V ± 0.25V
s PROGRAMMING TIME: 50µs/word
s ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Device Code: B2h
DESCRIPTION
The M27C800 is an 8 Mbit EPROM offered in the
two ranges UV (ultra violet erase) and OTP (one
time programmable). It is ideally suited for micro-
processor systems requiring large data or program
storage. It is organised as either 1 Mwords of 8 bit
or 512 Kwords of 16 bit. The pin-out is compatible
with the most common 8 Mbit Mask ROM.
The FDIP42W (window ceramic frit-seal package)
has a transparent lid which allows the user to ex-
pose the chip to ultraviolet light to erase the bit pat-
tern.
A new pattern can then be written rapidly to the de-
vice by following the programming procedure.
For applications where the content is programmed
only one time and erasure is not required, the
M27C800 is offered in PDIP42, PLCC44 and
SO44 packages.
42
1
FDIP42W (F)
42
1
PDIP42 (B)
PLCC44 (K)
44
1
SO44 (M)
Figure 1. Logic Diagram
VCC
19
A0-A18
E
G
BYTEVPP
M27C800
Q15A–1
15
Q0-Q14
VSS
AI01593
January 2000
1/17


STMicroelectronics Electronic Components Datasheet

M27C800 Datasheet

8 Mbit 1Mb x8 or 512Kb x16 UV EPROM and OTP EPROM

No Preview Available !

M27C800
Figure 2A. DIP Connections
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
E
VSS
G
Q0
Q8
Q1
Q9
Q2
Q10
Q3
Q11
1 42 NC
2 41 A8
3 40 A9
4 39 A10
5 38 A11
6 37 A12
7 36 A13
8 35 A14
9 34 A15
10 33
M27C800
11 32
12 31
13 30
A16
BYTEVPP
VSS
Q15A–1
14 29 Q7
15 28 Q14
16 27 Q6
17 26 Q13
18 25 Q5
19 24 Q12
20 23 Q4
21 22 VCC
AI01594
Figure 2C. SO Connections
NC
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
E
VSS
G
Q0
Q8
Q1
Q9
Q2
Q10
Q3
Q11
1 44
2 43
3 42
4 41
5 40
6 39
7 38
8 37
9 36
10 35
11 M27C800 34
12 33
13 32
14 31
15 30
16 29
17 28
18 27
19 26
20 25
21 24
22 23
AI01595
NC
NC
A8
A9
A10
A11
A12
A13
A14
A15
A16
BYTEVPP
VSS
Q15A–1
Q7
Q14
Q6
Q13
Q5
Q12
Q4
VCC
Figure 2B. LCC Connections
A4
A3
A2
A1
A0
E
VSS
G
Q0
Q8
Q1
12
1 44
M27C800
23
A12
A13
A14
A15
A16
34 BYTEVPP
VSS
Q15A–1
Q7
Q14
Q6
AI02042
Table 1. Signal Names
A0-A18
Address Inputs
Q0-Q7
Data Outputs
Q8-Q14
Data Outputs
Q15A–1
Data Output / Address Input
E Chip Enable
G Output Enable
BYTE VPP
Byte Mode / Program Supply
VCC Supply Voltage
VSS Ground
NC Not Connected Internally
2/17



Part Number M27C800
Description 8 Mbit 1Mb x8 or 512Kb x16 UV EPROM and OTP EPROM
Maker STMicroelectronics
Total Page 17 Pages
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M27C800 Datasheet PDF





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