M27C160-120F1TR Datasheet PDF - STMicroelectronics
| Part Number | M27C160-120F1TR | |
| Description | 16 Mbit 2Mb x8 or 1Mb x16 UV EPROM and OTP EPROM | |
| Manufacturers | STMicroelectronics | |
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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
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Table 7. Read Mode DC Characteristics (1)
(TA = 0 to 70 °C or –40 to 85 °C; VCC = 5V ± 5% or 5V ± 10%; VPP = VCC)
Symbol
Parameter
Test Condition
Min
ILI Input Leakage Current
ILO Output Leakage Current
ICC Supply Current
ICC1 Supply Current (Standby) TTL
ICC2 Supply Current (Standby) CMOS
IPP Program Current
0V ≤ VIN ≤ VCC
0V ≤ VOUT ≤ VCC
E = VIL, G = VIL,
IOUT = 0mA, f = 8MHz
E = VIL, G = VIL,
IOUT = 0mA, f = 5MHz
E = VIH
E > VCC – 0.2V
VPP = VCC
VIL Input Low Voltage
–0.3
VIH (2) Input High Voltage
2
VOL Output Low Voltage
IOL = 2.1mA
VOH Output High Voltage TTL
IOH = –400µA
2.4
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.
M27C160
Max
±1
±10
70
Unit
µA
µA
mA
50
1
100
10
0.8
VCC + 1
0.4
mA
mA
µA
µA
V
V
V
V
System Considerations
The power switching characteristics of Advanced
CMOS EPROMs require carefull decoupliing of
the supplies to the devices. The supply current ICC
has three segments of importance to the system
designer: the standby current, the active current
and the transient peaks that are produced by the
falling and rising edges of E.
The magnitude of the transient current peaks is
dependant on the capacititive and inductive load-
ing of the device outputs. The associated transient
voltage peaks can be supressed by complying
with the two line output control and by properly se-
lected decoupling capacitors. It is recommended
that a 0.1µF ceramic capacitor is used on every
device between VCC and VSS. This should be a
high frequency type of low inherent inductance
and should be placed as close as possible to the
device. In addition, a 4.7µF electrolytic capacitor
should be used between VCC and VSS for every
eight devices.
This capacitor should be mounted near the power
supply connection point. The purpose of this ca-
pacitor is to overcome the voltage drop caused by
the inductive effects of PCB traces.
Programming
When delivered (and after each erasure for UV
EPROM), all bits of the M27C160 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 exposition to ultravio-
let light (UV EPROM). The M27C160 is in the pro-
gramming mode when VPP input is at 12.5V, G is
at VIH and E is pulsed to VIL. The data to be pro-
grammed is applied to 16 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.
5/16
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