Mbit (256Kb Voltage EPROM VOLTAGE READ OPERATION: 2.7V 3.6V FAST

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Mbit (256Kb Voltage EPROM VOLTAGE READ OPERATION: 2.7V 3.6V FAST

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M27W201
Mbit (256Kb Voltage EPROM
VOLTAGE READ OPERATION: 2.7V 3.6V FAST READ ACCESS TIME: 70ns 3.0V 3.6V 80ns 2.7V 3.6V COMPATIBLE with M27C2001 POWER CONSUMPTION: 15µA Standby Current 15mA Active Current 5MHz PROGRAMMING TIME 100µs/byte (typical) HIGH RELIABILITY CMOS TECHNOLOGY 2,000V Protection 200mA Latchup Protection Immunity ELECTRONIC SIGNATURE Manufacturer Code: Device Code:
PLCC32
TSOP32 20mm
Figure Logic Diagram
DESCRIPTION M27W201 voltage Mbit EPROM offered range (one time programmable). ideally suited microprocessor systems requiring large data program storage organised 262,144 bits.
A0-A17
Q0-Q7
Table Signal Names
A0-A17 Q0-Q7 Address Inputs Data Outputs Chip Enable Output Enable Program Program Supply Supply Voltage Ground
M27W201
AI01359
February 1999
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M27W201
Figure Connections Figure TSOP Connections
M27W201
AI01360
M27W201 (Normal)
AI01361
Symbol TBIAS TSTG
Table Absolute Maximum Ratings
Parameter Ambient Operating Temperature Temperature Under Bias Storage Temperature Input Output Voltages (except Supply Voltage Voltage Program Supply Voltage
Value 13.5
Unit
Notes: 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. 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. Depends range.
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M27W201
Table Operating Modes
Mode Read Output Disable Program Verify Program Inhibit Standby Electronic Signature
Note: VIL, 0.5V
Pulse
Data Hi-Z Data Data Hi-Z Hi-Z Codes
Table Electronic Signature
Identifier Manufacturer's Code Device Code Data
DESCRIPTION (cont'd) M27W201 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. M27W201 offered PLCC32 TSOP32 packages. DEVICE OPERATION operating modes M27W201 listed Operating Modes table. single power supply required read mode. inputs levels except Electronic Signature. Read Mode M27W201 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 M27W201 standby mode which reduces supply current from 15mA 15µA with voltage operation 3.6V, Read Mode Characteristics table details.The M27W201 placed standby mode applying CMOS high signal input. When standby mode, outputs high impedance state, independent input. 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 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.
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M27W201
Table Measurement Conditions
High Speed Input Rise Fall Times Input Pulse Voltages Input Output Timing Ref. Voltages 10ns 1.5V Standard 20ns 0.4V 2.4V 0.8V
Figure Testing Input Output Waveform
Figure Testing Load Circuit
1.3V
High Speed 1.5V
DEVICE UNDER TEST 3.3k 1N914
Standard 2.4V 2.0V 0.8V
AI01822
0.4V
30pF High Speed 100pF Standard includes capacitance
AI01823B
Table Capacitance
Symbol COUT Parameter Input Capacitance Output Capacitance Test Condition VOUT Unit
Note: Sampled only, 100% tested.
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.
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M27W201
Table Read Mode Characteristics 2.7V 3.6V; VCC)
Symbol ICC1 ICC2
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
Test Condition VOUT VIL, VIL, IOUT 0mA, 5MHz 3.6V 0.2V 3.6V
Unit
-0.6 2.1mA -400µA
Notes: must applied simultaneously with before removed simultaneously after VPP. Maximum voltage Output +0.5V.
Table Read Mode Characteristics 2.7V 3.6V; VCC)
M27W201 Symbol Parameter Test Condition -100 (-120/-150/-200) Unit
3.0V 3.6V 2.7V 3.6V 2.7V 3.6V 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,
Notes: must applied simultaneously with before removed simultaneously after VPP. Sampled only, 100% tested. Speed obtained with High Speed measurement conditions.
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M27W201
Figure Read Mode Waveforms
A0-A17
VALID tAVQV tAXQX
VALID
tGLQV tELQV Q0-Q7 tGHQZ Hi-Z tEHQZ
AI00719B
Table Programming Mode Characteristics 6.25V 0.25V; 12.75V 0.25V)
Symbol Parameter Input Leakage Current Supply Current Program Current Input Voltage Input High Voltage Output Voltage Output High Voltage Voltage 2.1mA -400µA 11.5 12.5 -0.3 Test Condition Unit
Note: must applied simultaneously with before removed simultaneously after VPP.
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M27W201
Table Programming Mode Characteristics 6.25V 0.25V; 12.75V 0.25V)
Symbol tAVPL tQVPL tVPHPL tVCHPL tELPL tPLPH tPHQX tQXGL tGLQV tGHQZ tGHAX 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 Unit
Notes: must applied simultaneously with before removed simultaneously after VPP. Sampled only, 100% tested.
Figure Programming Verify Modes Waveforms
A0-A17 tAVPL Q0-Q7 tQVPL tVPHPL tVCHPL tELPL tPLPH DATA
VALID
DATA tPHQX
tGLQV
tGHQZ
tGHAX
tQXGL
PROGRAM
VERIFY
AI00720
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M27W201
Figure Programming Flowchart ming 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. Program Inhibit Programming multiple M27W201s parallel with different data also easily accomplished. Except like inputs including parallel M27W201 common. level pulse applied M27W201's input, with 12.75V, will program that M27W201. high level input inhibits other M27W201s 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. On-Board Programming M27W201 directly programmed application circuit. relevant Application Note AN620. 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 M27W201. activate mode, programming equipment must force 11.5V 12.5V address line M27W201 with VPP=VCC=5V. identifier bytes then sequenced from device outputs toggling address line from VIH. other address lines must held during Electronic Signature mode. Byte (A0=VIL) represents manufacturer code byte (A0=VIH) device identifier code. STMicroelectronics M27W201, these identifier bytes given Table read-out outputs Note that M27W201 M27C2001 have same identifier byte.
6.25V, 12.75V
100µs Pulse VERIFY Last Addr Addr
FAIL
CHECK BYTES 1st: 2nd: 4.2V
AI00715C
Programming M27W201 been designed fully compatible with M27C2001 same electronic signature. result M27W201 programmed M27C2001 same programming equipment applying 12.75V 6.25V same PRESTO algorithm. When delivered, bits M27W201 state. Data introduced selectively programming '0's into desired locations. Although only '0's will programmed, both '1's '0's present data word. M27W201 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 26.5 seconds. Program-
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M27W201
ORDERING INFORMATION SCHEME Example: M27W201
Speed (1,2) -100
Package PLCC32 TSOP32 20mm
Temperature Range
Option Tape Reel Packing
DESIGN -120 -150 -200
Notes: High Speed, Characteristics section further information. This speed also guarantees 70ns access time 3.0V 3.6V These speeds replaced 100ns.
list available options (Speed, Package, etc.) further information aspect this device, please contact STMicroelectronics Sales Office nearest you.
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M27W201
PLCC32 lead Plastic Leaded Chip Carrier, rectangular
Symb 0.89 1.27 2.54 1.52 0.33 0.66 12.32 11.35 9.91 14.86 13.89 12.45 0.00 0.10 3.56 2.41 0.38 0.53 0.81 12.57 11.56 10.92 15.11 14.10 13.46 0.25 0.035 0.050 inches 0.100 0.060 0.013 0.026 0.485 0.447 0.390 0.585 0.547 0.490 0.000 0.004 0.140 0.095 0.015 0.021 0.032 0.495 0.455 0.430 0.595 0.555 0.530 0.010
0.51 (.020)
D2/E2
1.14 (.045)
PLCC
Drawing scale
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M27W201
TSOP32 lead Plastic Thin Small Outline, 20mm
Symb 0.50 0.05 0.95 0.15 0.10 19.80 18.30 7.90 0.50 0.10 1.20 0.15 1.05 0.27 0.21 20.20 18.50 8.10 0.70 0.020 0.002 0.037 0.006 0.004 0.780 0.720 0.311 0.020 0.004 inches 0.047 0.007 0.041 0.011 0.008 0.795 0.728 0.319 0.028
TSOP-a
Drawing scale
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M27W201
Information furnished believed accurate reliable. However, STMicroelectronics assumes responsibility consequences such information infringement patents other rights third parties which result from use. license granted implication otherwise under patent patent rights STMicroelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. STMicroelectronics products authorized critical components life support devices systems without express written approval STMicroelectronics. logo registered trademark STMicroelectronics 1999 STMicroelectronics Rights Reserved STMicroelectronics GROUP COMPANIES Australia Brazil Canada China France Germany Italy Japan Korea Malaysia Malta Mexico Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdom U.S.A. http://www.st.com
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Mbit (256Kb Voltage EPROM VOLTAGE READ OPERATION: 2.7V 3.6V FAST

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