Mbit (512Kb Voltage EPROM EPROM 2.7V 3.6V Supply Voltage Read Ope

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Mbit (512Kb Voltage EPROM EPROM 2.7V 3.6V Supply Voltage Read Ope

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M27W401
Mbit (512Kb Voltage EPROM EPROM
2.7V 3.6V Supply Voltage Read Operation Access Time: 3.0V 3.6V 2.7V 3.6V Compatible with M27C4001 Power Consumption: Max. Standby Current Max. Active Current Programming Time µs/byte High Reliability CMOS Technology 2,000V Protection Latchup Protection Immunity Electronic Signature Manufacturer Code: Device Code: ECOPACK® packages available
PLCC32 TSOP32
FDIP32W
PDIP32
April 2006
1/23
www.st.com
Contents
M27W401
Contents
Summary description Device description
2.10 Read mode Standby mode Two-line output control System considerations Programming Presto programming algorithm Program Inhibit Program Verify Electronic Signature Erasure operation (applies EPROM)
Maximum ratings parameters Package mechanical data
32-pin Ceramic Frit-seal DIP, with round window (FDIP32WA) 32-pin Plastic DIP, mils width (PDIP32) 32-lead Rectangular Plastic Leaded Chip Carrier (PLCC32) 32-lead Plastic Thin Small Outline, 8x20 (TSOP32)
Part numbering Revision history
2/23
M27W401
List figures
List figures
Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Logic Diagram Connections Connections TSOP Connections Programming flowchart Testing Input Output Waveform Testing Load Circuit Read Mode Waveforms Programming Verify Modes Waveforms FDIP32WA package outline PDIP32 package outline PLCC32 package outline TSOP32 package outline
3/23
List tables
M27W401
List tables
Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Signal descriptions Operating modes Electronic Signature Absolute Maximum Ratings Read Mode Characteristics Programming Mode Characteristics Measurement Conditions Capacitance Read Mode Characteristics Programming Mode Characteristics FDIP32WA package mechanical data PDIP32 package mechanical data PLCC32 package mechanical data TSOP32 package mechanical data Ordering Information Scheme. Document revision history
4/23
M27W401
Summary description
Summary description
M27W401 voltage Mbit EPROM offered ranges (ultra violet erase) (one time programmable). ideally suited microprocessor systems requiring large data program storage organised 524,288 bits. M27W401 operates read mode with supply voltage 2.7V 85°C temperature range. decrease operating power allows either reduction size battery increase time between battery recharges. FDIP32W (window ceramic frit-seal package) transparent which allows user expose chip ultraviolet light erase pattern. pattern then written device following programming procedure. application where content programmed only time erasure required, M27W401 offered PDIP32, PLCC32 TSOP32 packages. order meet environmental requirements, offers M27W401 ECOPACK® packages. ECOPACK packages Lead-free. category second Level Interconnect marked package inner label, compliance with JEDEC Standard JESD97. maximum ratings related soldering conditions also marked inner label. ECOPACK trademark. ECOPACK® specifications available www.st.com. Figure Logic Diagram Table Signal descriptions brief overview signals connected this device. Figure Logic Diagram
A0-A18
Q0-Q7
M27W401
AI01590
5/23
Summary description Table Signal descriptions
Signal A0-A18 Q0-Q7 Address Inputs Data Outputs Chip Enable Output Enable Program Supply Supply Voltage Ground Description
M27W401
Figure
Connections
M27W401
AI02676
6/23
M27W401 Figure Connections
Summary description
M27W401
AI01591
Figure
TSOP Connections
M27W401 (Normal)
AI01592
7/23
Device description
M27W401
Device description
Table lists operating modes M27W40. single power supply required read mode. inputs levels except Electronic Signature. Table Operating modes
Pulse Q7-Q0 Data Hi-Z Data Data Hi-Z Hi-Z Codes
Mode Read Output Disable Program Verify Program Inhibit Standby Electronic Signature
Note:
VIL, 0.5V.
Read mode
M27W401 control functions, both which must logically active order obtain data outputs. Chip Enable power control should used device selection. Output Enable output control should used gate data output pins, independent device selection. Assuming that addresses stable, address access time (tAVQV) equal delay from output (tELQV). Data available output after delay tGLQV from falling edge assuming that been addresses have been stable least tAVQV-tGLQV.
Standby mode
M27W401 standby mode which reduces supply current from 15mA 15µA with voltage operation 3.6V, Read Mode Characteristics table details. M27W401 placed standby mode applying CMOS high signal input. When standby mode, outputs high impedance state, independent input.
Two-line output control
Because EPROMs usually used larger memory arrays, this product features line control function which accommodates multiple memory connection. line control function allows:
lowest possible memory power dissipation, complete assurance that output contention will occur.
most efficient these control lines, should decoded used primary device selecting function, while should made common connection
8/23
M27W401
Device description devices array connected READ line from system control bus. This ensures that deselected memory devices their power standby mode that output pins only active when data required from particular memory device.
System considerations
power switching characteristics Advanced CMOS EPROMs require careful decoupling devices. supply current, ICC, three segments that interest system designer: standby current level, active current level, transient current peaks that produced falling rising edges magnitude transient current peaks dependent capacitive inductive loading device output. associated transient voltage peaks suppressed complying with line output control properly selected decoupling capacitors. recommended that 0.1µF ceramic capacitor used every device between VSS. This should high frequency capacitor inherent inductance should placed close device possible. addition, 4.7µF bulk electrolytic capacitor should used between every eight devices. bulk capacitor should located near power supply connection point.The purpose bulk capacitor overcome voltage drop caused inductive effects traces.
Programming
M27W401 been designed fully compatible with M27C4001 same electronic signature. result M27W401 programmed M27C4001 same programming equipment applying 12.75V 6.25V same PRESTO algorithm. When delivered (and after each `1's erasure EPROM), bits M27W401 state. Data introduced selectively programming '0's into desired locations. Although only '0's will programmed, both '1's '0's present data word. only change exposure ultraviolet light EPROM). M27W401 programming mode when input 12.75V, pulsed VIL. data programmed applied bits parallel data output pins. levels required address data inputs TTL. specified 6.25V 0.25V
Presto programming algorithm
Presto Programming Algorithm allows whole array programmed with guaranteed margin, typical time 52.5 seconds. Programming with Presto consists applying sequence 100µs program pulses each byte until correct verify occurs (see Figure During programming verify operation, Margin mode circuit automatically activated order guarantee that each cell programmed with enough margin. overprogram pulse applied since verify Margin mode much higher than 3.6V, provides necessary margin each programmed cell.
9/23
Device description Figure Programming flowchart
6.25V, 12.75V
M27W401
100µs Pulse VERIFY Last Addr Addr
FAIL
CHECK BYTES 1st: 2nd: 2.7V
AI00760C
Program Inhibit
Programming multiple M27W401s parallel with different data also easily accomplished. Except like inputs including parallel M27W401 common. level pulse applied M27W401's input, with 12.75V, will program that M27W401. high level input inhibits other M27W401s from being programmed.
Program Verify
verify (read) should performed programmed bits determine that they were correctly programmed. verify accomplished with VIL, VIH, 12.75V 6.25V.
Electronic Signature
Electronic Signature (ES) mode allows reading binary code from EPROM that will identify manufacturer type. This mode intended programming equipment automatically match device programmed with corresponding programming algorithm. mode functional 25°C ambient temperature range that required when programming M27W401. activate mode, programming equipment must force 11.5V 12.5V address line M27W401 with identifier bytes then sequenced from device outputs toggling address line from VIH. other address lines must held during Electronic Signature mode. Byte VIL) represents manufacturer code byte VIH) device identifier code. STMicroelectronics
10/23
M27W401
Device description M27W401, these identifier bytes given Table read-out outputs Note that M27W401 M27C4001 have same identifier bytes. Table Electronic Signature
Data
Identifier Manufacturer's Code Device Code
2.10
Erasure operation (applies EPROM)
erasure characteristics M27W401 such that erasure begins when cells exposed light with wavelengths shorter than approximately 4000 should noted that sunlight some type fluorescent lamps have wavelengths 3000-4000 range. Data shows that constant exposure room level fluorescent lighting could erase typical M27W401 about years, while would take approximately week cause erasure when exposed direct sunlight. M27W401 exposed these types lighting conditions extended periods time, suggested that opaque labels over M27W401 window prevent unintentional erasure. recommended erasure procedure M27W401 exposure short wave ultraviolet light which wavelength 2537 integrated dose (i.e. intensity exposure time) erasure should minimum W-sec/cm2. erasure time with this dosage approximately minutes using ultraviolet lamp with 12000 µW/cm2 power rating. M27W401 should placed within inch) lamp tubes during erasure. Some lamps have filter their tubes which should removed before erasure.
11/23
Maximum ratings
M27W401
Maximum ratings
Table
Symbol TBIAS TSTG
Absolute Maximum Ratings
Parameter Ambient Operating Temperature Temperature Under Bias Storage Temperature Input Output Voltage (except Supply Voltage Voltage Program Supply Voltage Value 13.5 Unit
Except rating "Operating Temperature Range", stresses above those listed Table "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only operation device these other conditions above those indicated Operating sections this specification implied. Exposure Absolute Maximum Rating conditions extended periods affect device reliability. Refer also STMicroelectronics SURE Program other relevant quality documents. Depends range. Minimum voltage Input Output -0.5V with possible undershoot -2.0V period less than 20ns. Maximum voltage Output +0.5V with possible overshoot period less than 20ns.
12/23
M27W401
parameters
parameters
85°C; 2.7V 3.6V; Table
Symbol ICC1 ICC2
Read Mode Characteristics
Parameter Input Leakage Current Output Leakage Current Supply Current Supply Current (Standby) Supply Current (Standby) CMOS Program Current Input Voltage Input High Voltage Output Voltage Output High Voltage 2.1mA -400µA Test Condition VOUT VIL, VIL, IOUT 0mA, 5MHz, 3.6V 0.2V, 3.6V -0.6 Min. Max. 0.2VCC Unit
0.7VCC
must applied simultaneously with before removed simultaneously after VPP. Maximum voltage Output +0.5V.
6.25V 0.25V; 12.75V 0.25V Table
Symbol
Programming Mode Characteristics
Parameter Input Leakage Current Supply Current Program Current Input Voltage Input High Voltage Output Voltage Output High Voltage Voltage -400 11.5 12.5 -0.3 Test Condition Unit
must applied simultaneously with before removed simultaneously after VPP.
13/23
parameters Table Measurement Conditions
Parameter Input Rise Fall Times Input Pulse Voltages Input Output Timing Ref. Voltages High Speed 10ns 1.5V
M27W401
Standard 20ns 0.4V 2.4V 0.8V
Table
Symbol COUT
Capacitance
Parameter Input Capacitance Output Capacitance Test Condition VOUT Min. Max. Unit
Sampled only, 100% tested.
Figure
Testing Input Output Waveform
High Speed 1.5V
Standard 2.4V 2.0V 0.8V
AI01822
0.4V
Figure
Testing Load Circuit
1.3V
1N914
3.3k DEVICE UNDER TEST
30pF High Speed 100pF Standard includes capacitance
AI01823B
14/23
M27W401 2.7V 3.6V; Table Read Mode Characteristics
Symbol Parameter Test Condition
3.0V 3.6V
parameters
-100 (-120/-150/-200)
2.7V 3.6V
2.7V 3.6V
Unit
Min. tAVQV tELQV tGLQV tEHQZ tGHQZ tAXQX tACC Address Valid Output Valid Chip Enable Output Valid Output Enable Output Valid Chip Enable High Output Hi-Z Output Enable High Output Hi-Z Address Transition Output Transition VIL, VIL,
Max.
Min.
Max.
Min.
Max.
must applied simultaneously with before removed simultaneously after VPP. Speed obtained with High Speed measurement conditions. Sampled only, 100% tested.
Figure
Read Mode Waveforms
A0-A18 VALID tAVQV tGLQV tELQV Q0-Q7 tGHQZ Hi-Z tEHQZ tAXQX VALID
AI00724B
15/23
parameters 6.25V 0.25V; 12.75V 0.25V Table
Symbol tAVPL tQVPL tVPHPL tVCHPL tELPL tPLPH tPHQX tQXGL tGLQV tGHQZ tGHAX
M27W401
Programming Mode Characteristics
tVPS tVCS tCES tOES tDFP Parameter Address Valid Program Input Valid Program High Program High Program Chip Enable Program Program Pulse Width Program High Input Transition Input Transition Output Enable Output Enable Output Valid Output Enable High Output Hi-Z Output Enable High Address Transition Test Condition Min. Max. Unit
must applied simultaneously with before removed simultaneously after VPP. Sampled only, 100% tested.
Figure
Programming Verify Modes Waveforms
A0-A18 tAVPL Q0-Q7 tQVEL tVPHEL tVCHEL tELEH DATA
VALID
DATA tEHQX
tGLQV
tGHQZ
tGHAX
tQXGL
PROGRAM
VERIFY
AI00725
16/23
M27W401
Package mechanical data
Package mechanical data
32-pin Ceramic Frit-seal DIP, with round window (FDIP32WA)
Figure FDIP32WA package outline
FDIPW-a
Table
Symbol
FDIP32WA package mechanical data
millimeters 5.72 0.51 3.91 3.89 0.41 1.45 0.23 41.73 38.10 2.54 15.24 13.06 14.99 16.18 3.18 1.52 7.11 2.49 0.060 0.280 18.03 4.10 0.637 0.125 0.098 13.36 0.514 0.590 0.710 0.161 0.30 42.04 0.009 1.643 1.500 0.100 0.600 0.526 1.40 4.57 4.50 0.56 0.020 0.154 0.153 0.016 0.057 0.012 1.655 inches 0.225 0.055 0.180 0.177 0.022
17/23
Package mechanical data
M27W401
32-pin Plastic DIP, mils width (PDIP32)
Figure PDIP32 package outline
PDIP-C
Table
Symbol
PDIP32 package mechanical data
millimeters 5.080 0.381 3.912 0.406 1.168 0.203 41.402 38.100 15.240 13.890 3.175 1.650 2.210 0.0650 2.540 15.240 14.248 3.429 0.6000 0.5469 0.1250 0.0870 0.1000 0.6000 0.5609 0.1350 0.559 1.372 0.356 42.418 0.0160 0.0460 0.0080 1.6300 1.5000 0.0150 0.1540 0.0220 0.0540 0.0140 1.6700 inches 0.2000
18/23
M27W401
Package mechanical data
32-lead Rectangular Plastic Leaded Chip Carrier (PLCC32)
Figure PLCC32 package outline
0.51 (.020) 1.14 (.045)
PLCC-A
Table
Symbol
PLCC32 package mechanical data
millimeters 3.56 2.41 0.53 0.81 0.10 12.32 11.35 4.78 14.86 13.89 6.05 0.00 0.89 10.16 1.27 7.62 12.57 11.51 5.66 15.11 14.05 6.93 0.13 0.485 0.447 0.188 0.585 0.547 0.238 0.000 0.035 0.400 0.050 0.300 0.125 0.060 0.015 0.013 0.026 inches 0.140 0.095 0.021 0.032 0.004 0.495 0.453 0.223 0.595 0.553 0.273 0.005
3.18 1.53 0.38 0.33 0.66
19/23
Package mechanical data
M27W401
32-lead Plastic Thin Small Outline, 8x20 (TSOP32)
Figure TSOP32 package outline
TSOP-a
Table
Symbol
TSOP32 package mechanical data
millimeters 1.200 0.050 0.950 0.170 0.100 0.150 1.050 0.250 0.210 0.100 19.800 18.300 7.900 0.500 0.500 20.200 18.500 8.100 0.700 0.7795 0.7205 0.3110 0.0197 0.0197 0.0020 0.0374 0.0067 0.0039 inches 0.0472 0.0059 0.0413 0.0098 0.0083 0.0039 0.7953 0.7283 0.3189 0.0276
20/23
M27W401
Part numbering
Part numbering
Table
Example: Device Type Supply Voltage 2.7V 3.6V Device Function Mbit (512Kb Speed -100 Design -120 -150 -200 Package FDIP32W PDIP32 PLCC32 TSOP32: Temperature Range
Ordering Information Scheme
M27W401
High Speed, Characteristics section further information. This speed also guarantees 70ns access time 3.0V 3.6V. These speeds replaced Packages option available request. Please contact STMicroelectronics local Sales Office.
list available options (Speed, Package, etc.) further information aspect this device, please contact STMicroelectronics Sales Office nearest you.
21/23
Revision history
M27W401
Revision history
Table
Date 25-Jul-1999 10-Mar-2000 21-Apr-2006
Document revision history
Revision First Issue FDIP32W Package Dimension, added (Table TSOP32 Package Dimension changed (Table 70°C Temperature Range deleted Converted template. Added ECOPACK® information. Changes
22/23
M27W401
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Mbit (512Kb Voltage EPROM EPROM 2.7V 3.6V Supply Voltage Read Ope

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