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27L256-20 [Macronix]

256K-BIT [32Kx8] LOW VOLTAGE OPERATION CMOS EPROM; 256K - BIT [ 32Kx8 ]低电压工作CMOS EPROM
27L256-20
型号： 27L256-20
厂家： MACRONIX INTERNATIONAL    MACRONIX INTERNATIONAL
描述：

256K-BIT [32Kx8] LOW VOLTAGE OPERATION CMOS EPROM
256K - BIT [ 32Kx8 ]低电压工作CMOS EPROM

可编程只读存储器 电动程控只读存储器
文件： 总14页 (文件大小：762K)
中文：  中文翻译
下载：  下载PDF数据表文档文件
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MX27L256  
256K-BIT [32Kx8] LOW VOLTAGE OPERATION  
CMOS EPROM  
FEATURES  
• Completely TTL compatible  
• Operating current: 10mA @ 3.6V, 5MHz  
• Standby current: 10uA  
• 32K x 8 organization  
• Wide Voltage range, 2.7V to 3.6V DC  
• +12.5V programming voltage  
• Fast access time: 120/150/200/250 ns  
• Totally static operation  
• Package type:  
- 28 pin plastic DIP  
- 32 pin PLCC  
- 28 pin 8 x 13.4mm TSOP(I)  
GENERAL DESCRIPTION  
TheMX27L256isa 256K-bit,One-TimeProgrammable  
Read Only Memory. It is organized as 32K by 8 bits,  
operates from a single + 3volt supply, has a static  
standby mode,andfeaturesfastsingleaddresslocation  
programming. All programming signals are TTL levels,  
requiring a single pulse. For programming from outside  
the system, existing EPROM programmers may be  
used. TheMX27L256supportsintelligentfastprogram-  
mingalgorithmwhichcanresultinprogrammingtimeof  
less than ten seconds.  
This EPROM is packaged in industry standard 28 pin  
dual-in-line packages, 32 lead PLCC, and 28 lead  
TSOP(I) packages.  
BLOCK DIAGRAM  
PIN CONFIGURATIONS  
PLCC  
PDIP  
CONTROL  
LOGIC  
OUTPUT  
CE  
OE  
Q0~Q7  
BUFFERS  
VCC  
A14  
A13  
A8  
VPP  
A12  
A7  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
1
4
1
32  
30  
29  
2
A8  
5
A6  
A5  
A4  
A3  
A2  
A1  
A0  
NC  
Q0  
3
A9  
A6  
4
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Y-DECODER  
X-DECODER  
Y-SELECT  
A11  
NC  
OE  
A10  
CE  
Q7  
Q6  
A9  
A5  
5
A11  
OE  
A10  
CE  
Q7  
A4  
6
A3  
A0~A14  
ADDRESS  
INPUTS  
7
9
25  
256K BIT  
CELL  
MX27L256  
A2  
8
A1  
9
MAXTRIX  
A0  
10  
11  
12  
13  
14  
Q6  
Q0  
Q1  
Q2  
GND  
Q5  
13  
Q4  
21  
14  
17  
20  
VCC  
GND  
VPP  
Q3  
8 x 13.4mm 28 -TSOP(I)  
PIN DESCRIPTION  
SYMBOL  
A0~A14  
Q0~Q7  
CE  
PIN NAME  
OE  
A11  
A9  
22  
23  
24  
25  
26  
27  
28  
1
21  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
10  
9
A10  
CE  
Q7  
Q6  
Q5  
Q4  
Q3  
GND  
Q2  
Q1  
Q0  
A0  
Address Input  
A8  
Data Input/Output  
Chip Enable Input  
Output Enable Input  
Program Supply Voltage  
No Internal Connection  
Power Supply Pin  
Ground Pin  
A13  
A14  
VCC  
VPP  
A12  
A7  
MX27L256  
OE  
2
3
VPP  
A6  
4
A5  
5
NC  
A4  
6
A1  
VCC  
A3  
7
8
A2  
GND  
P/N: PM0248  
REV. 3.6, AUG. 26, 2003  
1
MX27L256  
FUNCTIONAL DESCRIPTION  
AUTO IDENTIFY MODE  
THE PROGRAMMING OF THE MX27L256  
Theautoidentifymodeallowsthereadingoutofabinary  
code from an EPROM that will identify its manufacturer  
and device type. This mode is intended for use by  
programming equipment for the purpose of  
automatically matching the device to be programmed  
with its corresponding programming algorithm. This  
mode is functional in the 25°C ± 5°C ambient  
temperature range that is required when programming  
the MX27L256.  
When the MX27L256 is delivered, or it is erased, the  
chip has all 256K bits in the "ONE" or HIGH state.  
"ZEROs" are loaded into the MX27L256 through the  
procedure of programming.  
Forprogramming, thedatatobeprogrammedisapplied  
with 8 bits in parallel to the data pins.  
VCCmustbeappliedsimultaneouslyorbeforeVPP,and  
removed simultaneously or after VPP. When  
programming an MXIC EPROM, a 0.1uF capacitor is  
required across VPP and ground to suppress spurious  
voltage transients which may damage the device.  
To activate this mode, the programming equipment  
must force 12.0 ±0.5 (VH) on address line A9 of the  
device. Two identifier bytes may then be sequenced  
fromthedeviceoutputsbytogglingaddresslineA0from  
VIL to VIH. All other address lines must be held at VIL  
during auto identify mode.  
FAST PROGRAMMING  
Byte 0 ( A0 = VIL) represents the manufacturer code,  
andbyte1(A0=VIH),thedeviceidentifiercode. Forthe  
MX27L256, these two identifier bytes are given in the  
Mode Select Table. All identifiers for manufacturer and  
devicecodeswillpossessoddparity, withtheMSB(Q7)  
defined as the parity bit.  
Thedeviceissetupinthefastprogrammingmodewhen  
the programming voltage VPP = 12.75V is applied, with  
VCC = 6.25 V and OE = VIH (Algorithm is shown in  
Figure 1). The programming is achieved by applying a  
single TTL low level 100us pulse to the CE input after  
addresses and data line are stable. If the data is not  
verified, an additional pulse is applied for a maximum of  
25 pulses. This process is repeated while sequencing  
through each address of the device. When the  
programmingmodeiscompleted,thedatainalladdress  
is verified at VCC = VPP = 5V ±10%.  
READ MODE  
The MX27L256 has two control functions, both of which  
must be logically satisfied in order to obtain data at the  
outputs. Chip Enable (CE) is the power control and  
should be used for device selection. Output Enable  
(OE) is the output control and should be used to gate  
datatotheoutputpins, independentofdeviceselection.  
Assuming that addresses are stable, address access  
time(tACC)isequaltothedelayfromCEtooutput(tCE).  
DataisavailableattheoutputstOEafterthefallingedge  
ofOE, assumingthatCEhasbeenLOWandaddresses  
have been stable for at least tACC - tOE.  
PROGRAM INHIBIT MODE  
Programming of multiple MX27L256s in parallel with  
different data is also easily accomplished by using the  
Program Inhibit Mode. Except for CE and OE, all like  
inputs of the parallel MX27L256 may be common. A  
TTL low-level program pulse applied to an MX27L256  
CE input with VPP = 12.5 ±0.5 V and OE HIGH will  
program that MX27L256. A high-level CE input inhibits  
the other MX27L256s from being programmed.  
STANDBY MODE  
The MX27L256 has a CMOS standby mode which  
reducesthemaximumVcccurrent to10uA. Itisplaced  
in CMOS standby when CE is at VCC ±0.3 V. The  
MX27L 256 also has a TTL-standby mode which  
reduces the maximum VCC current to 0.25 mA. It is  
placed in TTL-standby when CE is at VIH. When in  
standby mode, the outputs are in a high-impedance  
state, independent of the OE input.  
PROGRAM VERIFY MODE  
Verification should be performed on the programmed  
bits to determine that they were correctly programmed.  
The verification should be performed with CE and OE  
at VIL, and VPP at its programming voltage.  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
2
MX27L256  
SYSTEM CONSIDERATIONS  
TWO-LINE OUTPUT CONTROL FUNCTION  
During the switch between active and standby  
conditions, transient current peaks are produced on the  
rising and falling edges of Chip Enable. The magnitude  
of these transient current peaks is dependent on the  
outputcapacitanceloadingofthedevice. Ataminimum,  
a0.1uFceramiccapacitor(highfrequency,lowinherent  
inductance) should be used on each device between  
VCCandGNDtominimizetransienteffects. Inaddition,  
to overcome the voltage drop caused by the inductive  
effects of the printed circuit board traces on EPROM  
arrays, a 4.7 uF bulk electrolytic capacitor should be  
usedbetweenVccandGNDforeacheightdevices. The  
location of the capacitor should be close to where the  
power supply is connected to the array.  
To accommodate multiple memory connections, a two-  
line control function is provided to allow for:  
1. Low memory power dissipation,  
2. Assurance that output bus contention will not  
occur.  
It is recommended that CE be decoded and used as the  
primary device-selecting function, while OE be made a  
common connection to all devices in the array and  
connectedtotheREADlinefromthesystemcontrolbus.  
This assures that all deselected memory devices are in  
their low-power standby mode and that the output pins  
are only active when data is desired from a particular  
memory device.  
MODE SELECT TABLE  
PINS  
MODE  
CE  
OE  
VIL  
VIH  
X
A0  
X
A9  
X
VPP  
VCC  
VCC  
VCC  
VCC  
VPP  
VPP  
VPP  
VCC  
VCC  
OUTPUTS  
DOUT  
High Z  
High Z  
High Z  
DIN  
Read  
VIL  
Output Disable  
Standby (TTL)  
Standby (CMOS)  
Program  
VIL  
X
X
VIH  
X
X
VCC±0.3V  
VIL  
X
X
X
VIH  
VIL  
VIH  
VIL  
VIL  
X
X
Program Verify  
Program Inhibit  
Manufacturer Code(3)  
Device Code(3)  
VIH  
X
X
DOUT  
High Z  
C2H  
VIH  
X
X
VIL  
VIL  
VIH  
VH  
VH  
VIL  
10H  
NOTES: 1. VH = 12.0 V ±0.5 V  
4. See DC Programming characteristics for VPP voltage during  
programming.  
2. X = Either VIH or VIL  
3. A1 - A8 = A10 - A14 = VIL(For auto select)  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
3
MX27L256  
FIGURE 1. FAST PROGRAMMING FLOW CHART  
START  
ADDRESS = FIRST LOCATION  
VCC = 6.25V  
VPP = 12.75V  
X = 0  
PROGRAM ONE 100us PULSE  
INCREMENT X  
INTERACTIVE  
SECTION  
YES  
X = 25?  
NO  
FAIL  
VERIFY BYTE  
?
PASS  
NO  
LAST ADDRESS  
INCREMENT ADDRESS  
FAIL  
YES  
VCC = VPP = 5.25V  
VERIFY SECTION  
FAIL  
DEVICE FAILED  
VERIFY ALL BYTES  
?
PASS  
DEVICE PASSED  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
4
MX27L256  
SWITCHING TEST CIRCUITS  
DEVICE  
UNDER  
TEST  
1.8K ohm  
+5V  
DIODES = IN3064  
OR EQUIVALENT  
CL  
6.2K ohm  
CL = 100 pF including jig capacitance  
SWITCHING TEST WAVEFORMS  
2.0V  
0.8V  
2.0V  
TEST POINTS  
AC driving levels  
0.8V  
OUTPUT  
INPUT  
AC TESTING: AC driving levels are 2.4V/0.4V for both commercial grade and industrial grade.  
Input pulse rise and fall times are < 20ns.  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
5
MX27L256  
NOTICE:  
ABSOLUTE MAXIMUM RATINGS  
Stresses greater than those listed under ABSOLUTE MAXIMUM  
RATINGS may cause permanent damage to the device. This is a  
stress rating only and functional operation of the device at these or  
any other conditions above those indicated in the operational  
sections of this specification is not implied. Exposure to absolute  
maximum rating conditions for extended period may affect reliability.  
RATING  
VALUE  
Ambient Operating Temperature  
Storage Temperature  
Applied Input Voltage  
Applied Output Voltage  
VCC to Ground Potential  
A9 & Vpp  
-40oC to 85oC  
-65oC to 125oC  
-0.5V to 7.0V  
NOTICE:  
-0.5V to VCC + 0.5V  
-0.5V to 7.0V  
Specifications contained within the following tables are subject to  
change.  
-0.5V to 13.5V  
DC/AC Operating Conditions for Read Operation  
MX27L256  
-12  
-15  
-20  
-25  
Operating Temperature  
Vcc Power Supply  
Commercial  
Industrial  
0°C to 70°C  
-40°C to 85°C  
2.7V to 3.6V  
0°C to 70°C  
-40°C to 85°C  
2.7V to 3.6V  
0°C to 70°C  
-40°C to 85°C  
2.7V to 3.6V  
0°C to 70°C  
-40°C to 85°C  
2.7V to 3.6V  
DC CHARACTERISTICS  
SYMBOL  
VOH  
VOL  
VIH  
PARAMETER  
MIN.  
MAX.  
UNIT  
V
CONDITIONS  
Output High Voltage  
Output Low Voltage  
Input High Voltage  
VCC -0.3  
IOH = -100uA, VCC =3.0V  
IOL = 2.1mA, VCC =3.0V  
0.3  
V
2.0  
-0.3  
-10  
-10  
VCC + 0.5  
V
VIL  
Input Low Voltage  
0.6  
10  
V
ILI  
Input Leakage Current  
Output Leakage Current  
VCC Power-Down Current  
VCC Standby Current  
VCC Active Current  
VPP Supply Current Read  
uA  
uA  
uA  
mA  
mA  
uA  
VIN = 0 to 3.6V  
VOUT = 0 to 3.6V  
CE = VCC ±0.3V  
CE = VIH  
ILO  
10  
ICC3  
ICC2  
ICC1  
IPP  
10  
0.25  
10  
CE = VIL, f=5MHz, Iout = 0mA, VCC = 3.6V  
CE = OE = VIL, VPP = VCC  
10  
CAPACITANCE TA = 25oC, f = 1.0 MHz (Sampled only)  
SYMBOL  
CIN  
PARAMETER  
MIN.  
8
MAX.  
UNIT  
pF  
CONDITIONS  
VIN = 0V  
Input Capacitance  
Output Capacitance  
VPP Capacitance  
12  
12  
25  
COUT  
VPP  
8
pF  
VOUT = 0V  
VPP = 0V  
18  
pF  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
6
MX27L256  
AC CHARACTERISTICS  
27L256-12  
27L256-15  
27L256-20  
27L256-25  
SYMBOL PARAMETER  
MIN. MAX. MIN. MAX. MIN. MAX.  
MIN. MAX. UNIT CONDITIONS  
tACC  
tCE  
Address to Output Delay  
120  
120  
60  
150  
150  
70  
200  
200  
100  
60  
250  
250  
120  
70  
ns  
ns  
ns  
ns  
CE = OE = VIL  
OE = VIL  
Chip Enable to Output Delay  
Output Enable to Output Delay  
OE High to Output Float,  
or CE High to Output Float  
Output Hold from Address,  
CE or OE which ever occurred  
first  
tOE  
tDF  
CE = VIL  
0
0
40  
0
0
50  
0
0
0
0
tOH  
ns  
DC PROGRAMMING CHARACTERISTICS TA = 25oC ±5°C  
SYMBOL  
VOH  
VOL  
VIH  
PARAMETER  
MIN.  
MAX.  
UNIT  
V
CONDITIONS  
IOH = -0.40mA  
IOL = 2.1mA  
Output High Voltage  
2.4  
Output Low Voltage  
0.4  
V
Input High Voltage  
2.0  
VCC + 0.5  
0.8  
V
VIL  
Input Low Voltage  
-0.3  
-10  
V
ILI  
Input Leakage Current  
A9 Auto Select Voltage  
VCC Supply Current(Program & Verify)  
VPP Supply Current(Program)  
Fast Programming Supply Voltage  
Fast Programming Voltage  
10  
uA  
V
VIN = 0 to 3.6V  
VH  
11.5  
12.5  
40  
ICC3  
IPP2  
VCC1  
VPP1  
mA  
mA  
V
30  
CE = VIL, OE = VIH  
6.00  
12.5  
6.50  
13.0  
V
AC PROGRAMMING CHARACTERISTICS TA = 25°C ±5°C  
SYMBOL  
tAS  
PARAMETER  
MIN.  
2.0  
2.0  
2.0  
0
MAX.  
UNIT  
us  
CONDITIONS  
Address Setup Time  
OE Setup Time  
tOES  
tDS  
us  
Data Setup Time  
us  
tAH  
Address Hold Time  
Data Hold Time  
us  
tDH  
2.0  
0
us  
tDFP  
tVPS  
tVCS  
tOE  
Output Enable to Output Float Delay  
VPP Setup Time  
130  
ns  
2.0  
2.0  
us  
VCC Setup Time  
us  
Data Valid from OE  
PGM Program Pulse Width  
150  
105  
ns  
tPW  
95  
us  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
7
MX27L256  
WAVEFORMS  
READ CYCLE  
ADDRESS  
INPUTS  
DATA ADDRESS  
tACC  
CE  
tCE  
OE  
tDF  
DATA  
OUT  
VALID DATA  
tOE  
tOH  
FAST PROGRAMMING ALGROITHM WAVEFORM  
PROGRAM  
PROGRAM VERIFY  
VIH  
Addresses  
VIL  
tAH  
tAS  
Hi-z  
DATA OUT VALID  
DATA  
VPP  
DATA IN STABLE  
tDFP  
tDS  
tDH  
VPP1  
VCC  
tVPS  
tVCS  
VCC1  
VCC  
VCC  
CE  
VIH  
VIL  
tOES  
tOE  
Max  
tPW  
VIH  
VIL  
OE  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
8
MX27L256  
ORDERING INFORMATION  
PLASTIC PACKAGE  
PART NO.  
ACCESS TIME(ns) OPERATING  
STANDBY  
OPERATING  
TEMPERATURE  
0°C to 70°C  
0°C to 70°C  
PACKAGE  
CURRENT MAX.(mA)  
CURRENT MAX.(uA)  
MX27L256PC-12  
MX27L256QC-12  
MX27L256TC-12  
MX27L256PC-15  
MX27L256QC-15  
MX27L256TC-15  
MX27L256PC-20  
MX27L256QC-20  
MX27L256TC-20  
MX27L256PC-25  
MX27L256QC-25  
MX27L256TC-25  
MX27L256PI-12  
MX27L256QI-12  
MX27L256TI-12  
MX27L256PI-15  
MX27L256QI-15  
MX27L256TI-15  
MX27L256PI-20  
MX27L256QI-20  
MX27L256TI-20  
MX27L256PI-25  
MX27L256QI-25  
MX27L256TI-25  
120  
120  
120  
150  
150  
150  
200  
200  
200  
250  
250  
250  
120  
120  
120  
150  
150  
150  
200  
200  
200  
250  
250  
250  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
28 Pin DIP  
32 Pin PLCC  
28 Pin TSOP(I)  
28 Pin DIP  
0°C to 70°C  
0°C to 70°C  
0°C to 70°C  
32 Pin PLCC  
28 Pin TSOP(I)  
28 Pin DIP  
0°C to 70°C  
0°C to 70°C  
0°C to 70°C  
32 PinPLCC  
28 Pin TSOP(I)  
28 Pin DIP  
0°C to 70°C  
0°C to 70°C  
0°C to 70°C  
32 Pin PLCC  
28 Pin TSOP(I)  
28 Pin DIP  
0°C to 70°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
-40°C to 85°C  
32 Pin PLCC  
28 Pin TSOP(I)  
28 Pin DIP  
32 Pin PLCC  
28 Pin TSOP(I)  
28 Pin DIP  
32 PinPLCC  
28 Pin TSOP(I)  
28 Pin DIP  
32 Pin PLCC  
28 Pin TSOP(I)  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
9
MX27L256  
PACKAGE INFORMATION  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
10  
MX27L256  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
11  
MX27L256  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
12  
MX27L256  
REVISION HISTORY  
Revision No. Description  
Page  
Date  
3.0  
1) Eliminate Interactive Programming Mode.  
6/17/1997  
2) Add 28-TSOP(I) package offering  
3) AC driving levels are changed from 2.4V/0.3V to 2.4V/0.4V.  
IPP1 100uA-->10uA  
Cancel Ceramic DIP Package Type  
3.1  
3.2  
3.3  
7/17/1997  
FEB/29/2000  
SEP/19/2001  
P1,2,9,11  
P1,9  
Remove 28-pin SOP Package  
Package Information format changed  
Remove "ultraviolet erasable" wording  
To modify Package Information  
To modify 32-PLCC package information  
A1: from 0.50mm(0.020 inch)/nom. to 0.58mm(0.023 inch)/nom.  
from 0.66mm(0.026 inch)/nom. to 0.81mm(0.032 inch)/nom.  
P10~12  
P1  
P10~12  
P11  
3.4  
3.5  
3.6  
APR/24/2002  
NOV/19/2002  
AUG/26/2003  
P/N:PM0248  
REV.3.6, AUG. 26, 2003  
13  
MX27L256  
MACRONIX INTERNATIONAL CO., LTD.  
HEADQUARTERS:  
TEL:+886-3-578-6688  
FAX:+886-3-563-2888  
EUROPE OFFICE:  
TEL:+32-2-456-8020  
FAX:+32-2-456-8021  
JAPAN OFFICE:  
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