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M27W401-120XF6TR 데이터시트 PDF




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부품번호 M27W401-120XF6TR 기능
기능 4 Mbit 512Kb x 8 Low Voltage UV EPROM and OTP EPROM
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M27W401-120XF6TR 데이터시트, 핀배열, 회로
M27W401
4 Mbit (512Kb x 8) Low Voltage UV EPROM and OTP EPROM
s 2.7V to 3.6V LOW VOLTAGE in READ
OPERATION
s ACCESS TIME:
– 70ns at VCC = 3.0V to 3.6V
– 80ns at VCC = 2.7V to 3.6V
s PIN COMPATIBLE with M27C4001
s LOW POWER CONSUMPTION:
– 15µA max Standby Current
– 15mA max Active Current at 5MHz
s PROGRAMMING TIME 100µs/byte
s HIGH RELIABILITY CMOS TECHNOLOGY
– 2,000V ESD Protection
– 200mA Latchup Protection Immunity
s ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Device Code: 41h
32
1
FDIP32W (F)
32
1
PDIP32 (B)
PLCC32 (K)
TSOP32 (N)
8 x 20 mm
Figure 1. Logic Diagram
DESCRIPTION
The M27W401 is a low voltage 4 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 organised as 524,288 by 8
bits.
The M27W401 operates in the read mode with a
supply voltage as low as 2.7V at –40 to 85°C tem-
perature range. The decrease in operating power
allows either a reduction of the size of the battery
or an increase in the time between battery re-
charges.
The FDIP32W (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 to the
device by following the programming procedure.
For application where the content is programmed
only one time and erasure is not required, the
M27W401 is offered in PDIP32, PLCC32 and
TSOP32 (8 x 20 mm) packages.
VCC VPP
19
A0-A18
8
Q0-Q7
E M27W401
G
VSS
AI01590
March 2000
1/15




M27W401-120XF6TR pdf, 반도체, 판매, 대치품
M27W401
Table 5. AC Measurement Conditions
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
High Speed
10ns
0 to 3V
1.5V
Standard
20ns
0.4V to 2.4V
0.8V and 2V
Figure 3. AC Testing Input Output Waveform
High Speed
3V
0V
Standard
2.4V
0.4V
1.5V
2.0V
0.8V
AI01822
Figure 4. AC Testing Load Circuit
1.3V
1N914
DEVICE
UNDER
TEST
3.3k
CL
OUT
CL = 30pF for High Speed
CL = 100pF for Standard
CL includes JIG capacitance
AI01823B
Table 6. Capacitance (1) (TA = 25 °C, f = 1 MHz)
Symbol
Parameter
CIN Input Capacitance
COUT Output Capacitance
Note: 1. Sampled only, not 100% tested.
DEVICE OPERATION
The operating modes of the M27W401 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 M27W401 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
Test Condit ion
VIN = 0V
VOUT = 0V
Min Max Unit
6 pF
12 pF
(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.
Standby Mode
The M27W401 has a standby mode which reduc-
es the supply current from 15mA to 15µA with low
voltage operation VCC 3.6V, see Read Mode DC
Characteristics table for details. The M27W401 is
placed in the standby mode by applying a CMOS
high signal to the E input. When in the standby
mode, the outputs are in a high impedance state,
independent of the G input.
4/15

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M27W401-120XF6TR 전자부품, 판매, 대치품
M27W401
Table 9. Programming Mode DC Characteristics (1)
(TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V)
Symbol
Parameter
Test Condition
Min
Max
ILI Input Leakage Current
0V VIN VCC
±10
ICC Supply Current
IPP Program Current
E = VIL
50
50
VIL Input Low Voltage
VIH Input High Voltage
–0.3
2
0.8
VCC + 0.5
VOL Output Low Voltage
VOH Output High Voltage TTL
IOL = 2.1mA
IOH = –400µA
2.4
0.4
VID A9 Voltage
11.5
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
12.5
Unit
µA
mA
mA
V
V
V
V
V
Table 10. Programming Mode AC Characteristics (1)
(TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V)
Symbol
Alt
Parameter
Test Condition
Min
tAVEL
tAS Address Valid to Chip Enable Low
2
tQVEL
tDS Input Valid to Chip Enable Low
2
tVPHEL
tVPS VPP High to Chip Enable Low
2
tVCHEL
tVCS VCC High to Chip Enable Low
2
tELEH
tPW Chip Enable Program Pulse Width
95
tEHQX
tDH Chip Enable High to Input Transition
2
tQXGL
tOES Input Transition to Output Enable Low
2
tGLQV
tOE Output Enable Low to Output Valid
tGHQZ
tDFP Output Enable High to Output Hi-Z
0
tGHAX
tAH
Output Enable High to Address
Transition
0
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
Max Unit
µs
µs
µs
µs
105 µs
µs
µs
100 ns
130 ns
ns
Programming
The M27W401 has been designed to be fully com-
patible with the M27C4001 and has the same elec-
tronic signature. As a result the M27W401 can be
programmed as the M27C4001 on the same pro-
gramming equipment applying 12.75V on VPP and
6.25V on VCC by the use of the same PRESTO II
algorithm.
When delivered (and after each ‘1’s erasure for UV
EPROM), all bits of the M27W401 are in the ’1’
state. Data is introduced by selectively program-
ming ’0’s into the desired bit locations. Although
only ’0’s will be programmed, both ’1’s and ’0’s can
be present in the data word. The only way to
change a ‘0’ to a ‘1’ is by die exposure to ultraviolet
light (UV EPROM). The M27W401 is in the pro-
gramming mode when VPP input is at 12.75V, G is
at VIH and E is pulsed to VIL. The data to be pro-
grammed is applied to 8 bits in parallel to the data
output pins. The levels required for the address
and data inputs are TTL. VCC is specified to be
6.25V ± 0.25V
7/15

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부품번호상세설명 및 기능제조사
M27W401-120XF6TR

4 Mbit 512Kb x 8 Low Voltage UV EPROM and OTP EPROM

STMicroelectronics
STMicroelectronics

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