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M27C160 Datasheet

16 Mbit 2Mb x8 or 1Mb x16 UV EPROM and OTP EPROM

No Preview Available !

M27C160
16 Mbit (2Mb x8 or 1Mb x16) UV EPROM and OTP EPROM
s 5V ± 10% SUPPLY VOLTAGE in READ
OPERATION
s FAST ACCESS TIME: 70ns
s BYTE-WIDE or WORD-WIDE
CONFIGURABLE
s 16 Mbit MASK ROM REPLACEMENT
s LOW POWER CONSUMPTION
– Active Current 70mA at 8MHz
– Standby Current 100µA
s PROGRAMMING VOLTAGE: 12.5V ± 0.25V
s PROGRAMMING TIME: 100µs/byte (typical)
s ELECTRONIC SIGNATURE
– Manufacturer Code: 0020h
– Device Code: 00B1h
DESCRIPTION
The M27C160 is a 16 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 and is organised as either 2 Mbit words of
8 bit or 1 Mbit words of 16 bit. The pin-out is com-
patible with a 16 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.
Table 1. Signal Names
A0-A19
Address Inputs
Q0-Q7
Data Outputs
Q8-Q14
Data Outputs
Q15A–1
Data Output / Address Input
E Chip Enable
G Output Enable
BYTEVPP
Byte Mode / Program Supply
VCC Supply Voltage
VSS Ground
42
1
FDIP42W (F)
42
1
PDIP42 (B)
PLCC44 (K)
44
1
SO44 (M)
Figure 1. Logic Diagram
VCC
20
A0-A19
E
G
BYTEVPP
M27C160
Q15A–1
15
Q0-Q14
VSS
AI00739B
February 1999
1/16


STMicroelectronics Electronic Components Datasheet

M27C160 Datasheet

16 Mbit 2Mb x8 or 1Mb x16 UV EPROM and OTP EPROM

No Preview Available !

M27C160
Figure 2A. DIP Pin Connections
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
E
VSS
G
Q0
Q8
Q1
Q9
Q2
Q10
Q3
Q11
1 42 A19
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
M27C160
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
AI00740
Figure 2C. SO Pin 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 M27C160 34
12 33
13 32
14 31
15 30
16 29
17 28
18 27
19 26
20 25
21 24
22 23
AI01264
NC
A19
A8
A9
A10
A11
A12
A13
A14
A15
A16
BYTEVPP
VSS
Q15A-1
Q7
Q14
Q6
Q13
Q5
Q12
Q4
VCC
2/16
Figure 2B. PLCC Pin Connections
A4
A3
A2
A1
A0
E
VSS
G
Q0
Q8
Q1
12
1 44
M27C160
23
A12
A13
A14
A15
A16
34 BYTEVPP
VSS
Q15A–1
Q7
Q14
Q6
AI03012
Warning: NC = Not Connected.
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
M27C160 is offered in PDIP42, PLCC44 and
SO44 packages.
DEVICE OPERATION
The operating modes of the M27C160 are listed in
the Operating Modes Table. A single power supply
is required in the read mode. All inputs are TTL
compatible except for VPP and 12V on A9 for the
Electronic Signature.
Read Mode
The M27C160 has two organisations, Word-wide
and Byte-wide. The organisation is selected by the
signal level on the BYTEVPP pin. When BYTEVPP
is at VIH the Word-wide organisation is selected
and the Q15A–1 pin is used for Q15 Data Output.
When the BYTEVPP pin is at VIL the Byte-wide or-
ganisation is selected and the Q15A–1 pin is used
for the Address Input A–1. When the memory is
logically regarded as 16 bit wide, but read in the
Byte-wide organisation, then with A–1 at VIL the
lower 8 bits of the 16 bit data are selected and with
A–1 at VIH the upper 8 bits of the 16 bit data are
selected.


Part Number M27C160
Description 16 Mbit 2Mb x8 or 1Mb x16 UV EPROM and OTP EPROM
Maker STMicroelectronics
Total Page 16 Pages
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