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STMicroelectronics Electronic Components Datasheet

M27V101 Datasheet

1 Mbit 128Kb x 8 Low Voltage UV EPROM and OTP EPROM

No Preview Available !

M27V101
1 Mbit (128Kb x 8) Low Voltage UV EPROM and OTP EPROM
s LOW VOLTAGE READ OPERATION:
3V to 3.6V
s FAST ACCESS TIME: 90ns
s LOW POWER CONSUMPTION:
– Active Current 15mA at 5MHz
– Standby Current 20µA
s PROGRAMMING VOLTAGE: 12.75V ± 0.25V
s PROGRAMMING TIME: 100µs/byte (typical)
s ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Device Code: 05h
DESCRIPTION
The M27V101 is a low voltage 1 Mbit EPROM of-
fered in the two ranges UV (ultra violet erase) and
OTP (one time programmable). It is ideally suited
for microprocessor systems requiring large data or
program storage and is organized as 131,072 by 8
bits.
The M27V101 operates in the read mode with a
supply voltage as low as 3V. The decrease in op-
erating power allows either a reduction of the size
of the battery or an increase in the time between
battery recharges.
The FDIP32W (window ceramic frit-seal package)
has a transparent lid which allow the user to ex-
pose the chip to ultraviolet light to erase the bit pat-
tern.
Table 1. Signal Names
A0-A16
Address Inputs
Q0-Q7
Data Outputs
E Chip Enable
G Output Enable
P Program
VPP Program Supply
VCC Supply Voltage
VSS Ground
32
1
FDIP32W (F)
32
1
PDIP32 (B)
PLCC32 (K)
TSOP32 (N)
8 x 20 mm
Figure 1. Logic Diagram
VCC VPP
17
A0-A16
8
Q0-Q7
P M27V101
E
G
VSS
AI00660B
May 1998
1/15


STMicroelectronics Electronic Components Datasheet

M27V101 Datasheet

1 Mbit 128Kb x 8 Low Voltage UV EPROM and OTP EPROM

No Preview Available !

M27V101
Figure 2A. DIP Pin Connections
VPP
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
Q0
Q1
Q2
VSS
1 32
2 31
3 30
4 29
5 28
6 27
7 26
8 25
M27V101
9 24
10 23
11 22
12 21
13 20
14 19
15 18
16 17
VCC
P
NC
A14
A13
A8
A9
A11
G
A10
E
Q7
Q6
Q5
Q4
Q3
AI01906
Warning : NC = Not Connected.
Figure 2C. TSOP Pin Connections
A11
A9
A8
A13
A14
NC
P
VCC
VPP
A16
A15
A12
A7
A6
A5
A4
1 32 G
A10
E
Q7
Q6
Q5
Q4
8 M27V101 25 Q3
9 (Normal) 24 VSS
Q2
Q1
Q0
A0
A1
A2
16 17 A3
AI01152B
Warning : NC = Not Connected.
Figure 2B. LCC Pin Connections
A7
A6
A5
A4
A3 9
A2
A1
A0
Q0
1 32
M27V101
17
A14
A13
A8
A9
25 A11
G
A10
E
Q7
AI00661
Warning: NC = Not Connected.
A new pattern can then be written to the device by
following the programming procedure. For appli-
cations where the content is programmed only one
time and erasure is not required, the M27V101 is
offered in both PDIP32, PLCC32 and TSOP32 (8
x 20 mm) packages.
DEVICE OPERATION
The operating modes of the M27V101 are listed in
the Operating Modes table. A single power supply
is required in the read mode. All inputs are TTL
levels except for VPP and 12V on A9 for Electronic
Signature.
Read Mode
The M27V101 has two control functions, both of
which must be logically active in order to obtain
data at the outputs. Chip Enable (E) is the power
control and should be used for device selection.
Output Enable (G) is the output control and should
be used to gate data to the output pins, indepen-
dent of device selection. Assuming that the ad-
dresses are stable, the address access time
(tAVQV) is equal to the delay from E to output
(tELQV). Data is available at the output after a delay
of tGLQV from the falling edge of G, assuming that
E has been low and the addresses have been sta-
ble for at least tAVQV-tGLQV.
2/15



Part Number M27V101
Description 1 Mbit 128Kb x 8 Low Voltage UV EPROM and OTP EPROM
Maker STMicroelectronics
Total Page 15 Pages
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M27V101 Datasheet PDF





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