M27V402-180K1TR Datasheet PDF - STMicroelectronics
| Part Number | M27V402-180K1TR | |
| Description | 4 Mbit 512Kb x 8 Low Voltage OTP EPROM | |
| Manufacturers | STMicroelectronics | |
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M27V405
4 Mbit (512Kb x 8) Low Voltage OTP EPROM
s LOW VOLTAGE READ OPERATION:
3V to 3.6V
s FAST ACCESS TIME: 120ns
s LOW POWER CONSUMPTION:
– Active Current 15mA at 5MHz
– Standby Current 20µA
s PROGRAMMING VOLTAGE: 12.75V ± 0.25V
s PROGRAMMING TIMES:
– Typical 48sec. (PRESTO II Algorithm)
– Typical 27sec. (On-Board Programming)
s PIN COMPATIBLE with the 4 Mbit,
Single Voltage Flash Memory
s ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Device Code: B4
DESCRIPTION
The M27V405 is a low voltage 4 Mbit EPROM of-
fered in the OTP range (one time programmable).
It is ideally suited for microprocessor systems re-
quiring large data or program storage and is orga-
nised as 524,288 by 8 bits.
The M27V405 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.
Table 1. Signal Names
A0-A18
Address Inputs
Q0-Q7
Data Outputs
E Chip Enable
G Output Enable
VPP Program Supply
VCC Supply Voltage
VSS Ground
PLCC32 (K)
TSOP32 (N)
8 x 20 mm
Figure 1. Logic Diagram
VCC VPP
19
A0-A18
8
Q0-Q7
E M27V405
G
VSS
AI01800
May 1998
1/13
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M27V405
Table 7. Read Mode DC Characteristics (1)
(TA = 0 to 70°C, –20 to 70°C, –20 to 85°C or –40 to 85°C; VCC = 3.3V ± 10%; VPP = VCC)
Symbol
Parameter
Test Condition
Min Max
ILI Input Leakage Current
ILO Output Leakage Current
ICC Supply Current
ICC1 Supply Current (Standby) TTL
0V ≤ VIN ≤ VCC
0V ≤ VOUT ≤ VCC
E = VIL, G = VIL, IOUT = 0mA,
f = 5MHz, VCC ≤ 3.6V
E = VIH
±10
±10
15
1
ICC2 Supply Current (Standby) CMOS
IPP Program Current
VIL Input Low Voltage
E > VCC – 0.2V, VCC ≤ 3.6V
VPP = VCC
–0.3
20
10
0.8
VIH (2) Input High Voltage
2
VOL Output Low Voltage
IOL = 2.1mA
Output High Voltage TTL
VOH
Output High Voltage CMOS
IOH = –400µA
IOH = –100µA
2.4
VCC – 0.7V
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. Maximum DC voltage on Output is VCC +0.5V.
VCC + 1
0.4
Unit
µA
µA
mA
mA
µA
µA
V
V
V
V
V
Table 8A. Read Mode AC Characteristics (1)
(TA = 0 to 70°C, –20 to 70°C, –20 to 85°C or –40 to 85°C; VCC = 3.3V ± 10%; VPP = VCC)
M27V405
Symbol Alt
Parameter
Test Condition
-120
-150
Unit
Min Max Min Max
tAVQV
tACC Address Valid to Output Valid
E = VIL, G = VIL
120 150 ns
tELQV
tCE Chip Enable Low to Output Valid
G = VIL
120 150 ns
tGLQV
tOE Output Enable Low to Output Valid
E = VIL
60 80 ns
tEHQZ (2) tDF Chip Enable High to Output Hi-Z
G = VIL
0 50 0 50 ns
tGHQZ (2) tDF Output Enable High to Output Hi-Z
E = VIL
0 50 0 50 ns
tAXQX
tOH
Address Transition to Output
Transition
E = VIL, G = VIL
0
0 ns
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
by the falling and rising edges of E. The magnitude
of the transient current peaks is dependent on the
capacitive and inductive loading of the device at
the output.
The associated transient voltage peaks can be
suppressed by complying with the two line output
control and by properly selected decoupling ca-
pacitors. It is recommended that a 0.1µF ceramic
capacitor be used on every device between VCC
and VSS. This should be a high frequency capaci-
tor of low inherent inductance and should be
placed as close to the device as possible. In addi-
tion, a 4.7µF bulk electrolytic capacitor should be
used between VCC and VSS for every eight devic-
es. The bulk capacitor should be located near the
power supply connection point.The purpose of the
bulk capacitor is to overcome the voltage drop
caused by the inductive effects of PCB traces.
5/13
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