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Features
* Fast Read Access Time - 45 ns * Low Power CMOS Operation * * * * * * *
- 100 A max. Standby - 30 mA max. Active at 5 MHz JEDEC Standard Packages - 44-Lead PLCC - 40-Lead VSOP (10mm x 14mm) 5V 10% Power Supply High Reliability CMOS Technology - 2000V ESD Protection - 200 mA Latchup Immunity RapidTM Programming Algorithm - 50 s/word (typical) CMOS and TTL Compatible Inputs and Outputs Integrated Product Identification Code Commercial and Industrial Temperature Ranges
512K (32K x 16) OTP EPROM AT27C516
Description
The AT27C516 is a low-power, high performance 524,288-bit one-time programmable read only memory (OTP EPROM) organized 32K by 16 bits. It requires only one 5V power supply in normal read mode operation. Any word can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states. The by-16 organization make this part ideal for high-performance 16- and 32-bit microprocessor systems. In read mode, the AT27C516 typically consumes 15 mA. Standby mode supply current is typically less than 10 A. (continued)
Pin Configurations
Pin Name A0 - A14 O0 - O15 CE OE PGM NC Note: Function Addresses Outputs Chip Enable Output Enable Program Strobe No Connect Both GND pins must be connected. PLCC Top View
O13 O14 O15 CE VPP NC VCC PGM NC NC A14 A9 A10 A11 A12 A13 A14 NC NC PGM VCC VPP CE O15 O14 O13 O12 O11 O10 O9 O8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 GND A8 A7 A6 A5 A4 A3 A2 A1 A0 OE O0 O1 O2 O3 O4 O5 O6 O7 GND
VSOP Top View Type 1
6 5 4 3 2 1 44 43 42 41 40
O3 O2 O1 O0 OE NC A0 A1 A2 A3 A4
18 19 20 21 22 23 24 25 26 27 28
O12 O11 O10 O9 O8 GND NC O7 O6 O5 O4
7 8 9 10 11 12 13 14 15 16 17
39 38 37 36 35 34 33 32 31 30 29
A13 A12 A11 A10 A9 GND NC A8 A7 A6 A5
Rev. 0362C-10/98
Note: PLCC Package Pins 1 and 23 are DON'T CONNECT.
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The AT27C516 is available in industry standard JEDECapproved one-time programmable (OTP) plastic PLCC and VSOP packages. The device features two-line control (CE, OE) to eliminate bus contention in high-speed systems. With 32K word storage capability, the AT27C516 allows firmware to be stored reliably and to be accessed by the system without the delays of mass storage media. Atmel's 27C516 have additional features to ensure high quality and efficient production use. The RapidTM Programming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 50 s/word. The Integrated Product Identification Code electronically identifies the device and manufacturer. This feature is used by industry standard programming equipment to select the proper programming algorithms and voltages.
System Considerations
Switching between active and standby conditions via the Chip Enable pin may produce transient voltage excursions. Unless accommodated by the system design, these transients may exceed data sheet limits, resulting in device non-conformance. At a minimum, a 0.1 F high frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the V CC and Ground terminals of the device, as close to the device as possible. Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.7 F bulk electrolytic capacitor should be utilized, again connected between the VCC and Ground terminals. This capacitor should be positioned as close as possible to the point where the power supply is connected to the array.
Block Diagram
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AT27C516
AT27C516
Absolute Maximum Ratings*
Temperature Under Bias ................................ -55C to +125C Storage Temperature ..................................... -65C to +150C Voltage on Any Pin with Respect to Ground .........................................-2.0V to +7.0V(1) Voltage on A9 with Respect to Ground ......................................-2.0V to +14.0V(1) VPP Supply Voltage with Respect to Ground .......................................-2.0V to +14.0V(1) Note: 1. Minimum voltage is -0.6V dc which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is VCC + 0.75V dc which may overshoot to +7.0 volts for pulses of less than 20 ns. *NOTICE: Stresses beyond 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 beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability
Operating Modes
Mode \ Pin Read Output Disable Standby Rapid Program PGM Verify PGM Inhibit Product Identification Notes:
(4) (2)
CE VIL X VIH VIL VIL VIH VIL
OE VIL VIH X VIH VIL X VIL
PGM X
(1)
Ai Ai X X Ai Ai X A9 = VH(3) A0 = VIH or VIL A1 - A14 = VIL
VPP X X X
(5)
Outputs DOUT High Z High Z DIN DOUT High Z Identification Code
X X VIL VIH X X
VPP VPP VPP VCC
1. X can be VIL or VIH. 2. Refer to Programming Characteristics. 3. VH = 12.0 0.5V. 4. Two identifier bytes may be selected. All Ai inputs are held low (VIL), except A9 which is set to VH and A0 which is toggled low (VIL) to select the Manufacturer's Identification byte and high (VIH) to select the Device Code byte. 5. Standby VCC current (ISB) is specified with VPP = VCC. VCC > VPP will cause a slight increase in ISB.
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DC and AC Operating Conditions for Read Operation
AT27C516 -45 Operating Temperature (Case) VCC Power Supply Com. Ind. 0C - 70C -40C - 85C 5V 10% -55 0C - 70C -40C - 85C 5V 10% -70 0C - 70C -40C - 85C 5V 10% -85 0C - 70C -40C - 85C 5V 10% -10 0C - 70C -40C - 85C 5V 10%
DC and Operating Characteristics for Read Operation
Symbol ILI ILO IPP1(2) ISB ICC VIL VIH VOL VOH Notes: Parameter Input Load Current Output Leakage Current VPP(1) Read/Standby Current VCC(1) Standby Current VCC Active Current Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage IOL = 2.1 mA IOH = -400 A 2.4 Condition VIN = 0V to VCC VOUT = 0V to VCC VPP = VCC ISB1 (CMOS), CE = VCC 0.3V ISB2 (TTL), CE = 2.0 to VCC + 0.5V f = 5 MHz, IOUT = 0 mA, CE = VIL -0.6 2.0 Min Max 1 5 10 100 1 30 0.8 VCC + 0.5 0.4 Units A A A A mA mA V V V V
1. VCC must be applied simultaneously with or before VPP, and removed simultaneously with or after VPP . . 2. VPP may be connected directly to VCC, except during programming. The supply current would then be the sum of ICC and IPP
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AT27C516
AT27C516
AC Waveforms for Read Operation(1)
AC Characteristics for Read Operation
AT27C516 -45 Symbol tACC(3) tCE(2) tOE(2)(3) tDF(4)(5) tOH Notes: Parameter Address to Output Delay CE to Output Delay OE to Output Delay Condition CE = OE = VIL OE = VIL CE = VIL
Min Max Min
-55
Max Min
-70
Max Min
-85
Max Min
-10
Max
Units ns ns ns ns ns
45 45 20 20 7 7
55 55 25 25 7
70 70 25 25 0
85 85 30 30 0
100 100 30 30
OE or CE High to Output Float, whichever occurred first Output Hold from Address, CE or OE, whichever occurred first
1. Timing measurement reference level is 1.5V for -45 and -55 devices. Input AC drive levels are VIL = 0.0V and VIH = 3.0V. Timing measurement reference levels for all other speed grades are VOL = 0.8V and VOH = 2.0V. Input AC drive levels are VIL = 0.45V and VIH = 2.4V. 2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE. 3. OE may be delayed up to tACC - tOE after the address is valid without impact on tACC. 4. This parameter is only sampled and is not 100% tested. 5. Output float is defined as the point when data is no longer driven.
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Input Test Waveforms and Measurement Levels
For -45, -55, and -70 devices only:
Output Test Load
tR, tF < 5 ns (10% to 90%) For -85 and -10 devices only: Note: CL = 100 pF including jig capacitance, except -45, -55, and -70 devices, where CL = 30 pF.
tR, tF < 20 ns (10% to 90%)
Pin Capacitance
f = 1 MHz, T = 25C(1)
Symbol CIN COUT Note: Typ 4 8 Max 10 12 Units pF pF Conditions VIN = 0V VOUT = 0V
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
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AT27C516
AT27C516
Programming Waveforms(1)
Notes:
1. 2. 3.
The Input Timing Reference is 0.8V for VIL and 2.0V for VIH. tOE and tDFP are characteristics of the device but must be accommodated by the programmer. When programming the AT27C516 at 0.1 F capacitor is required across VPP and ground to suppress spurious voltage transients.
DC Programming Characteristics
TA = 25 5C, VCC = 6.5 0.25V, VPP = 13.0 0.25V
Limits Symbol ILI VIL VIH VOL VOH ICC2 IPP2 VID Parameter Input Load Current Input Low Level Input High Level Output Low Voltage Output High Voltage VCC Supply Current (Program and Verify) VPP Supply Current A9 Product Identification Voltage CE = PGM = VIL 11.5 IOL = 2.1 mA IOH = -400 A 2.4 50 30 12.5 Test Conditions VIN = VIL, VIH -0.6 2.0 Min Max 10 0.8 VCC + 0.1 0.4 Units A V V V V mA mA V
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AC Programming Characteristics
TA = 25 5C, VCC = 6.5 0.25V, VPP = 13.0 0.25V
Limit Symbol tAS tCES tOES tDS tAH tDH tDFP tVPS tVCS tPW tOE tPRT Notes: Parameter Address Setup Time CE Setup Time OE Setup Time Data Setup Time Address Hold Time Data Hold Time OE High to Output Float Delay(2) VPP Setup Time VCC Setup Time PGM Program Pulse Width(3) Data Valid from OE VPP Pulse Rise Time During Programming Output Timing Reference Level: 0.8V to 2.0V Input Timing Reference Level: 0.8V to 2.0V Input Rise and Fall Times: (10% to 90%) 20 ns Input Pulse Levels: 0.45V to 2.4V Test Conditions
(1)
Min 2 2 2 2 0 2 0 2 2 47.5
Max
Units s s s s s s
130
ns s s
52.5 150
s ns ns
50
1. VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP . 2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven-- see timing diagram. 3. Program Pulse width tolerance is 50 sec 5%.
Atmel's 27C516 Integrated Product Identification Code
Pins Codes Manufacturer Device Type A0 0 1 O15-O8 0 0 O7 0 1 O6 0 1 O5 0 1 O4 1 1 O3 1 0 O2 1 0 O1 1 1 O0 0 0 Hex Data 001E 00F2
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AT27C516
AT27C516
Rapid Programming Algorithm
A 50 s PGM pulse width is used to program. The address is set to the first location. VCC is raised to 6.5V and VPP is raised to 13.0V. Each address is first programmed with one 50 s PGM pulse without verification. Then a verification / reprogramming loop is executed for each address. In the event a word fails to pass verification, up to 10 successive 50 s pulses are applied with a verification after each pulse. If the word fails to verify after 10 pulses have been applied, the part is considered failed. After the word verifies properly, the next address is selected until all have been checked. VPP is then lowered to 5.0V and VCC to 5.0V. All words are read again and compared with the original data to determine if the device passes or fails.
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Ordering Information
tACC (ns) ICC (mA) Active 30 45 30 30 55 30 30 70 30 30 85 30 30 100 30 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Standby 0.1 Ordering Code AT27C516-45JC AT27C516-45VC AT27C516-45JI AT27C516-45VI AT27C516-55JC AT27C516-55VC AT27C516-55JI AT27C516-55VI AT27C516-70JC AT27C516-70VC AT27C516-70JI AT27C516-70VI AT27C516-85JC AT27C516-85VC AT27C516-85JI AT27C516-85VI AT27C516-10JC AT27C516-10VC AT27C516-10JI AT27C516-10VI Package 44J 40V 44J 40V 44J 40V 44J 40V 44J 40V 44J 40V 44J 40V 44J 40V 44J 40V 44J 40V Operation Range Commercial (0C to 70C) Industrial (-40C to 85C) Commercial (0C to 70C) Industrial (-40C to 85C) Commercial (0C to 70C) Industrial (-40C to 85C) Commercial (0C to 70C) Industrial (-40C to 85C) Commercial (0C to 70C) Industrial (-40C to 85C)
Package Type 44J 40V 44-Lead, Plastic J-Leaded Chip Carrier (PLCC) 40-Lead, Plastic Thin Small Outline Package (VSOP) (10mm x 14mm)
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AT27C516
AT27C516
Packaging Information
44J, 44-Lead, Plastic J-Leaded Chip Carrier (PLCC) Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-018 AC
40V, 40-Lead, Plastic Thin Small Outline Package (TSOP) Dimensions in Millimeters and (Inches)
JEDEC OUTLINE MO-142 CA
.045(1.14) X 45
PIN NO. 1 IDENTIFY
.045(1.14) X 30 - 45
.012(.305) .008(.203)
.656(16.7) SQ .650(16.5) .032(.813) .026(.660) .695(17.7) SQ .685(17.4)
.630(16.0) .590(15.0) .021(.533) .013(.330)
.050(1.27) TYP .500(12.7) REF SQ
.043(1.09) .020(.508) .120(3.05) .090(2.29) .180(4.57) .165(4.19)
.022(.559) X 45 MAX (3X)
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(c) Atmel Corporation 1998. Atmel Cor poration makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in Atmel's Terms and Conditions located on the Company's website. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual proper ty of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel's products are not authorized for use as critical components in life suppor t devices or systems. Marks bearing
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0362C-10/98/xM
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