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M27C516
512 Kbit (32Kb x16) OTP EPROM
5V 10% SUPPLY VOLTAGE in READ OPERATION FAST ACCESS TIME: 35ns LOW POWER CONSUMPTION: - Active Current 30mA at 5MHz - Stand-by Current 100A PROGRAMMING VOLTAGE: 12.75V 0.25V PROGRAMMING TIME: 100s/word (typical) ELECTRONIC SIGNATURE - Manufacturer Code: 0020h - Device Code: 000Fh
PLCC44 (C)
TSOP40 (N) 10 x 14mm
Figure 1. Logic Diagram DESCRIPTION The M27C516 is a 512 Kbit EPROM offered in the OTP range (one time programmable). It is ideally suited for microprocessor systems requiring large data or program storage and is organized as 32,768 words of 16 bits. The M27C516 is offered in a PLCC44 and TSOP40 (10 x 14mm) packages.
15 A0-A14
VCC
VPP
16 Q0-Q15
P
Table 1. Signal Names
A0-A14 Q0-Q15 E G P VCC VPP VSS Address Inputs Data Outputs Chip Enable Output Enable Program Enable Supply Voltage Program Supply Ground
M27C516
E G
VSS
AI00932
September 1998
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M27C516
Figure 2A. LCC Pin Connections Figure 2B. TSOP Pin Connections
A9 A10 A11 A12 A13 A14 NC NC P VCC VPP E DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8 1 40 VSS A8 A7 A6 A5 A4 A3 A2 A1 A0 G DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 VSS
Q12 Q11 Q10 Q9 Q8 VSS NC Q7 Q6 Q5 Q4
Q13 Q14 Q15 E VPP NC VCC P NC NC A14 1 44 A13 A12 A11 A10 A9 VSS NC A8 A7 A6 A5
12
M27C516
34
10 11
M27C516 (Normal)
31 30
23 Q3 Q2 Q1 Q0 G NC A0 A1 A2 A3 A4
AI00934
20
21
AI01600
Warning: NC = Not Connected.
Warning: NC = Not Connected.
Table 2. Absolute Maximum Ratings (1)
Symbol TA TBIAS TSTG VIO
(2)
Parameter Ambient Operating Temperature (3) Temperature Under Bias Storage Temperature Input or Output Voltages (except A9) Supply Voltage A9 Voltage Program Supply Voltage
Value -40 to 125 -50 to 125 -65 to 150 -2 to 7 -2 to 7 -2 to 13.5 -2 to 14
Unit C C C V V V V
V CC VA9
(2)
VPP
Notes: 1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not i mplied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. 2. Minimum DC voltage on Input or Output is -0.5V with possible undershoot to -2.0V for a period less than 20ns. Maximum DC voltage on Output is VCC +0.5V with possible overshoot to VCC +2V for a period less than 20ns. 3. Depends on range.
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M27C516
Table 3. Operating Modes
Mode Read Output Disable Program Verify Program Inhibit Standby Electronic Signature
Notes: X = VIH or VIL, VID = 12V 0.5V
E VIL VIL VIL VIL VIH VIH VIL
G VIL VIH X VIL X X VIL
P VIH X VIL Pulse VIH X X VIH
A9 X X X X X X VID
VPP VCC VCC VPP VPP VPP VCC VCC
Q0 - Q15 Data Out Hi-Z Data In Data Out Hi-Z Hi-Z Codes
Table 4. Electronic Signature
Identifier Manufacturer's Code Device Code A0 VIL VIH Q7 0 0 Q6 0 0 Q5 1 0 Q4 0 0 Q3 0 1 Q2 0 1 Q1 0 1 Q0 0 1 Hex Data 20h 0Fh
Note: Outputs Q8-Q15 are set to '0'.
DEVICE OPERATION The operating modes of the M27C516 are listed in the Operating Modes table. A single power supply is required in the read mode. All inputs are TTL levels except for G and 12V on A9 for Electronic Signature. Read Mode The M27C516 has two control functions, both of which must be logically active in order to obtain data at the outputs. Chip Enable (E) is the power control and should be used for device selection. Output Enable (G) is the output control and should be used to gate data to the output pins, independent of device selection. Assuming that the addresses are stable, the address access time (tAVQV) isequal to the delay from E to output(tELQV). Data is available at the output after a delay of tGLQV from the falling edge of G, assuming that E has been low and the addresses have been stable for at least t AVQV-tGLQV. Standby Mode The M27C516 has a standby mode which reduces the supply current from 30mA to 100A. The
M27C516 is placed in the standby mode by applying a CMOS high signal to the E input. When in the standbymode, the outputs are in a high impedance state, independent of the G input. Two Line Output Control Because OTP EPROMs are usually used in larger memory arrays, the product featuresa 2 line control function which accommodates the use of multiple memory connection. The two line control function allows: a. the lowest possible memory power dissipation, b. complete assurance that output bus contention will not occur. For the most efficientuse of these two control lines, E should be decoded and used as the primary device selecting function, while G should be made a common connection to all devices in the array and connected to the READ line from the system control bus. This ensures that all deselected memory devices are in their low power standby mode and that the output pins are only active when data is required from a particular memory device.
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M27C516
Table 5. AC Measurement Conditions
High Speed Input Rise and Fall Times Input Pulse Voltages Input and Output Timing Ref. Voltages 10ns 0 to 3V 1.5V Standard 20ns (10% to 90%) 0.4V to 2.4V 0.8V and 2V
Figure 3. AC Testing Input Output Waveform
Figure 4. AC Testing Load Circuit
1.3V
High Speed 3V 1.5V 0V
3.3k DEVICE UNDER TEST 1N914
Standard 2.4V 2.0V 0.8V
AI01822
OUT CL = 30pF or 60pF or 100pF
0.4V
CL includes JIG capacitance
AI02024B
Table 6. Capacitance (TA = 25 C, f = 1 MHz )
Symbol C IN COUT Parameter Input Capacitance Output Capacitance Test Condition VIN = 0V VOUT = 0V Min Max 6 12 Unit pF pF
Notes. 1. VCC must be applied simultaneously with or before VPP and removed simultaneously with or after VPP. 2. This parameter is sampled only and not tested 100%.
System Considerations The power switching characteristics of Advanced CMOS EPROMs require careful decoupling of the devices. The supply current, ICC, has three segments that are of interest to the system designer: the standby current level, the active current level, and transient current peaks that are produced by the falling and rising edges of E. The magnitude of the transient current peaks is dependent on the capacitiveand inductiveloading of thedevice at the output. The associated transient voltagepeaks can be suppressed by complying with the two line
output control and by properlyselected decoupling capacitors. It is recommended that a 1F ceramic capacitor be used on every device between VCC and VSS. This should be a high frequencycapacitor of low inherent inductance and should be placed as close to the device as possible. In addition, a 4.7F bulk electrolytic capacitor should be used between VCC and VSS for every eight devices. The bulk capacitor should be located near the power supplyconnection point.The purpose of the bulk capacitor is to overcome the voltage drop caused by the inductive effects of PCB traces.
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M27C516
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 ILI ILO ICC ICC1 ICC2 IPP VIL VIH
(2)
Parameter Input Leakage Current Output Leakage Current Supply Current Supply Current (Standby) TTL Supply Current (Standby) CMOS Program Current Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage TTL Output High Voltage CMOS
Test Condition 0V VIN VCC 0V VOUT VCC E = VIL, G = VIL, f = 5MHz E = VIH E > VCC - 0.3V VPP = VCC
Min
Max 1 5 30 1 100 10
Unit A A mA mA A A V V V V V
-0.3 2 IOL = 2.1mA IOH = -400A IOH = -100A 2.4 VCC -0.7V
0.8 VCC + 1 0.4
VOL VOH
Notes: 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.
Table 8A. Read Mode AC Characteristics (1) (TA = 0 to 70 C or -40 to 85 C; VCC = 5V 5% or 5V 10%; VPP = VCC)
M27C516 Symbol Alt Parameter Test Condition -35 (3) Min tAVQV tELQV tGLQV tEHQZ (2) tGHQZ (2) tAXQX
Notes: 1. 2. 3. 4.
-45 (3) Min Max 45 45 23 0 0 0 18 18 0 0 0
-55 (4) Min Max 55 55 25 20 20
Unit
Max 35 35 18
tACC tCE tOE tDF tDF tOH
Address Valid to Output Valid Chip Enable Low to Output Valid Output Enable Low to Output Valid Chip Enable High to Output Hi-Z Output Enable High to Output Hi-Z Address Transition to Output Transition
E = VIL, G = VIL G = VIL E = VIL G = VIL E = VIL E = VIL, G = VIL 0 0 0
ns ns ns ns ns ns
18 18
VCC must be applied simultaneously with or before VPP and removed simultaneously with or after VPP. Sampled only, not 100% tested. Speed obtained with High Speed measurement conditions and a load capacitance of 30pF. Speed obtained with a load capacitance of 60pF.
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M27C516
Table 8B. Read Mode AC Characteristics (1) (TA = 0 to 70 C or -40 to 85 C; VCC = 5V 5% or 5V 10%; VPP = VCC)
M27C516 Symbol Alt Parameter Test Condition -70 Min tAVQV tELQV tGLQV tEHQZ (2) tGHQZ (2) tAXQX tACC tCE tOE tDF tDF tOH Address Valid to Output Valid Chip Enable Low to Output Valid Output Enable Low to Output Valid Chip Enable High to Output Hi-Z Output Enable High to Output Hi-Z Address Transition to Output Transition E = VIL, G = VIL G = VIL E = VIL G = VIL E = VIL E = VIL, G = VIL 0 0 0
(3)
-85/-10 Min Max 85 85 35 0 0 0 30 30
Unit
Max 70 70 35 20 20
ns ns ns ns ns ns
Notes: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously with or after VPP. 2. Sampled only, not 100% tested. 3. Speed obtained with a load capacitance of 60pF
Figure 5. Read Mode AC Waveforms
A0-A14
VALID tAVQV tAXQX
VALID
E tGLQV G tELQV Q0-Q15 tGHQZ Hi-Z tEHQZ
AI00935B
Programming When delivered, all bits of the M27C516 are in the '1' state. Data is introduced by selectively programming '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 M27C516 is in the
programming mode when VPP input is at 12.75V,E is at VIL and P is pulsed to VIL. The data to be programmed is applied to 16 bits in parallel to the data output pins. The evels required for the address and data inputs are TTL. VCC is specified to be 6.25V 0.25V.
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M27C516
Table 9. Programming Mode DC Characteristics (1) (TA = 25 C; VCC = 6.25V 0.25V; VPP = 12.75V 0.25V)
Symbol ILI ICC IPP VIL VIH VOL VOH VID Parameter Input Leakage Current Supply Current Program Current Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage TTL A9 Voltage IOL = 2.1mA IOH = -400A 2.4 11.5 12.5 E = VIL -0.3 2 Test Condition VIL VIN VIH Min Max 10 50 50 0.8 VCC + 0.5 0.4 Unit A mA mA V V V V V
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
Table 10. Programming Mode AC Characteristics (1) (TA = 25 C; VCC = 6.25V 0.25V; VPP = 12.75V 0.25V)
Symbol tAVPL tQVPL tVPHPL tVCHPL tELPL tPLPH tPHQX tQXGL tGLQV tGHQZ (2) tGHAX Alt tAS tDS tVPS tVCS tCES tPW tDH tOES tOE tDFP tAH Parameter Address Valid to Program Low Input Valid to Program Low VPP High to Program Low VCC High to Program Low Chip Enable Low to Program Low Program Pulse Width Program High to Input Transition Input Transition to Output Enable Low Output Enable Low to Output Valid Output Enable High to Output Hi-Z Output Enable High to Address Transition 0 0 Test Condition Min 2 2 2 2 2 95 2 2 100 130 105 Max Unit s s s s s s s s ns ns s
Notes: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. 2. Sampled only and not 100% tested.
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M27C516
Figure 6. Programming and Verify Modes AC Waveforms
A0-A14 tAVPL Q0-Q15 tQVPL VPP tVPHPL VCC tVCHPL E tELPL P tPLPH G tQXGL tGHAX tGLQV tGHQZ DATA IN tPHQX DATA OUT VALID
PROGRAM
VERIFY
AI00936
Figure 7. Programming Flowchart
VCC = 6.25V, VPP = 12.75V
n =0
P = 100s Pulse NO ++n = 25 YES NO VERIFY YES Last Addr NO ++ Addr
FAIL
YES CHECK ALL WORDS 1st: VCC = 6V 2nd: VCC = 4.2V
AI00707C
PRESTO II Programming Algorithm PRESTO II Programming Algorithm allows to program the whole array with a guaranteedmargin, in a typical time of 3 seconds. Programming with PRESTO II involves the application of a sequence of 100s programpulses to each byte until a correct verify occurs (see Figure 7). During programming and verify operation, a MARGIN MODE circuit is automatically activated in order to guarantee that each cell is programmed with enough margin. No overprogram pulse is applied since the verify in MARGIN MODE provides necessary margin to each programmed cell. Program Inhibit Programming of multiple M27C516sin parallelwith different data is also easily accomplished. Except for E, all like inputs including G of the parallel M27C516 may be common. A TTL low level pulse applied to a M27C516's P input, with E low and VPP at 12.75V,will program that M27C516. A high level E input inhibits the other M27C516s from being programmed. Program Verify A verify (read) should be performed on the programmed bits to determine that they were correctly programmed. The verify is accomplished with E and G at VIL, P at VIH, VPP at 12.75V and VCC at 6.25V.
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M27C516
On-Board Programming The M27C516 can be directly programmed in the application circuit. See the relevant Application Note AN620. Electronic Signature The Electronic Signature (ES) mode allows the reading out of a binary code from an EPROM that will identify its manufacturer and type. This mode is intended for use by programming equipment to automatically match the device to be programmed with its correspondingprogramming algorithm. The ES mode is functional in the 25C 5C ambient temperature range that is required when programming the M27C516. To activate the ES mode, the programming equipmentmust force 11.5Vto 12.5V on address line A9 of the M27C516. Two identifier bytes may then be sequenced from the device outputs by togglingaddress line A0 from VIL to VIH. All other address lines must be held at VIL during Electronic Signature mode. Byte 0 (A0=VIL) represents the manufacturer code and byte 1 (A0=VIH) the device identifier code. For the STMicroelectronics M27C516, these two identifier bytes are given in Table 4 and can be read-out on outputs Q0 to Q7.
ORDERING INFORMATION SCHEME
Example:
M27C516
-70 X
N
1 TR
Speed -35 -55 -70 -85 -10
(1)
VCC Tolerance blank X 10% 5% C N
Package PLCC44 TSOP40 10 x 14mm
Temperature Range 1 6 0 to 70 C -40 to 85 C
Option TR Tape & Reel Packing
35 ns 45 ns 55 ns 70 ns 85 ns 100 ns
-45 (1)
(2) (2)
Notes: 1. High Speed, see AC Characteristics section for further information. 2. Speed obtained with a load capacitance of 60pF.
For a list of availableoptions (Speed,Package, etc...) or for further information on any aspect of this device, please contact the STMicroelectronics Sales Office nearest to you.
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M27C516
PLCC44 - 44 lead Plastic Leaded Chip Carrier, square
Symb Typ A A1 A2 B B1 D D1 D2 E E1 E2 e F R N CP 0.89 1.27 mm Min 4.20 2.29 - 0.33 0.66 17.40 16.51 14.99 17.40 16.51 14.99 - 0.00 - 44 0.10 Max 4.70 3.04 0.51 0.53 0.81 17.65 16.66 16.00 17.65 16.66 16.00 - 0.25 - 0.035 0.050 Typ inches Min 0.165 0.090 - 0.013 0.026 0.685 0.650 0.590 0.685 0.650 0.590 - 0.000 - 44 0.004 Max 0.185 0.120 0.020 0.021 0.032 0.695 0.656 0.630 0.695 0.656 0.630 - 0.010 -
D D1
1N
A1 A2
B1
Ne
E1 E
F 0.51 (.020)
D2/E2 B
e
1.14 (.045)
Nd
A R CP
PLCC
Drawing is not to scale
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M27C516
TSOP40 - 40 lead Plastic Thin Small Outline, 10 x 14mm
Symb Typ A A1 A2 B C D D1 E e L N CP 0.50 0.05 0.95 0.17 0.10 13.80 12.30 9.90 - 0.50 0 40 0.10 mm Min Max 1.20 0.15 1.05 0.27 0.21 14.20 12.50 10.10 - 0.70 5 0.020 0.002 0.037 0.007 0.004 0.543 0.484 0.390 - 0.020 0 40 0.004 Typ inches Min Max 0.047 0.006 0.041 0.011 0.008 0.559 0.492 0.398 - 0.028 5
A2
1 N
e E B
N/2
D1 D
A CP
DIE
C
TSOP-a
Drawing is not to scale
A1
L
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M27C516
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Spec ifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 1998 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
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