AT27C516 Features • • • • • • • • • Fast Read Access Time - 45 ns Low Power CMOS Operation 100 µA max. Standby 30 mA max. Active at 5 MHz JEDEC Standard Packages 44-Lead PLCC 40-Lead TSOP (10mm x 14mm) 5V ± 10% Power Supply High Reliability CMOS Technology 2000V ESD Protection 200 mA Latchup Immunity Rapid Programming Algorithm - 50 µs/word (typical) CMOS and TTL Compatible Inputs and Outputs Integrated Product Identification Code Commercial and Industrial Temperature Ranges 512K (32K x 16) OTP CMOS EPROM 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. (continued) Pin Configurations Pin Name Function A0 - A14 Addresses O0 - O15 Outputs CE Chip Enable OE Output Enable PGM Program Strobe NC No Connect AT27C516 Note: Both GND pins must be connected. PLCC Top View Note: PLCC Package Pins 1 and 23 are DON’T CONNECT. TSOP Top View Type 1 0362C 3-145 Description (Continued) System Considerations In read mode, the AT27C516 typically consumes 15 mA. Standby mode supply current is typically less than 10 µA. 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 µF high frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the VCC 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 µF 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. The AT27C516 is available in industry standard JEDEC-approved one-time programmable (OTP) plastic PLCC and TSOP 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 Rapid Programming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 50 µs/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. 3-146 AT27C516 AT27C516 Block Diagram Absolute Maximum Ratings* Temperature Under Bias ................ -55°C to +125°C Storage Temperature...................... -65°C to +150°C 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) *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. 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 +7.0V for pulses of less than 20 ns. Operating Modes CE Mode \ Pin Read Output Disable Standby OE PGM Ai VPP VIL VIL X (1) Ai X X VIH X X X Outputs DOUT High Z (5) VIH X X X X VIL VIH VIL Ai VPP DIN PGM Verify VIL VIL VIH Ai VPP DOUT PGM Inhibit VIH X X X VPP High Z VCC Identification Code Rapid Program (2) High Z (3) Product Identification (4) VIL Notes: 1. X can be VIL or VIH. 2. Refer to Programming characteristics. 3. VH = 12.0 ± 0.5V. VIL X A9 = VH A0 = VIH or VIL A1 - A14 = VIL 4. Two identifier words 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 word and high (VIH) to select the Device Code word. 5. Standby VCC current (ISB) is specified with VPP = VCC. VCC > VPP will cause a slight increase in ISB. 3-147 DC and AC Operating Conditions for Read Operation AT27C516 Operating Temperature (Case) Com. Ind. VCC Power Supply -10 -45 0°C - 70°C -55 0°C - 70°C -70 0°C - 70°C -85 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C -40°C - 85°C -40°C - 85°C -40°C - 85°C 5V ± 10% 5V ± 10% 5V ± 10% 5V ± 10% 5V ± 10% DC and Operating Characteristics for Read Operation Symbol ILI ILO IPP1 (2) Parameter Condition Input Load Current Output Leakage Current VPP (1) Read/Standby Current VCC (1) Standby Current ISB Min Max Units VIN = 0V to VCC ±1 µA VOUT = 0V to VCC ±5 µA VPP = VCC 10 µA ISB1 (CMOS), CE = VCC ± 0.3V 100 µA ISB2 (TTL), CE = 2.0 to VCC + 0.5V 1 mA f = 5 MHz, IOUT = 0 mA, CE = VIL 30 mA ICC VCC Active Current VIL Input Low Voltage -0.6 0.8 V VIH Input High Voltage 2.0 VCC + 0.5 V VOL Output Low Voltage IOL = 2.1 mA 0.4 V VOH Output High Voltage IOH = -400 µA Notes: 1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP. 2.4 V 2. VPP may be connected directly to VCC, except during programming. The supply current would then be the sum of ICC and IPP. AC Characteristics for Read Operation AT27C516 -45 Symbol tACC (3) Parameter Condition Min -55 Max Min -70 Max Min -85 Max Min -10 Max Min Max Units Address to Output Delay CE = OE = VIL 45 55 70 85 100 ns tCE (2) CE to Output Delay OE = VIL 45 55 70 85 100 ns tOE (2, 3) OE to Output Delay CE = VIL 20 25 25 30 30 ns 20 25 25 30 30 ns tDF (4, 5) tOH Notes: 3-148 OE or CE High to Output Float, whichever occurred first Output Hold from Address, CE or OE, whichever occurred first 7 2, 3, 4, 5. - see AC Waveforms for Read Operation. AT27C516 7 7 0 0 ns AT27C516 AC Waveforms for Read Operation (1) Notes: 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. Output Test Load Input Test Waveforms and Measurement Levels For -45, -55, and -70 Devices Only: tR, tF < 5 ns (10% to 90%) Note: CL = 100 pF including jig capacitance except -45, -55 and -70 devices, where CL = 30 pF. For -85 and -10 Devices Only: tR, tF < 20 ns (10% to 90%) Pin Capacitance (f = 1 MHz T = 25°C) (1) Typ Max Units CIN 4 10 pF VIN = 0V COUT 8 12 pF VOUT = 0V Note: Conditions 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested. 3-149 Programming Waveforms (1) Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V for VIH. 2. tOE and tDFP are characteristics of the device but must be accommodated by the programmer. 3. When programming the AT27C516 a 0.1 µF capacitor is required across VPP and ground to suppress spurious voltage transients. DC Programming Characteristics TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V Symbol Parameter Test Conditions ILI Input Load Current VIN = VIL, VIH VIL Input Low Level VIH Input High Level VOL Output Low Voltage IOL = 2.1 mA VOH Output High Voltage IOH = -400 µA ICC2 IPP2 VCC Supply Current (Program and Verify) VPP Supply Current VID A9 Product Identification Voltage 3-150 AT27C516 Min Limits Max Units ±10 µA -0.6 0.8 V 2.0 VCC + 0.1 V 0.4 V 2.4 CE = PGM = VIL 11.5 V 50 mA 30 mA 12.5 V AT27C516 AC Programming Characteristics Rapid Programming Algorithm TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V A 50 µs 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 µs 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 µs 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. Symbol Parameter Test (1) Conditions* Limit Min Max Units tAS Address Setup Time 2 µs tCES CE Setup Time 2 µs tOES OE Setup Time 2 µs tDS Data Setup Time 2 µs tAH Address Hold Time 0 µs tDH Data Hold Time 2 µs tDFP OE High to Output Float Delay (2) 0 tVPS VPP Setup Time 2 µs tVCS VCC Setup Time 2 µs tPW PGM Program Pulse Width tOE Data Valid from OE tPRT VPP Pulse Rise Time During Programming (3) 47.5 130 ns 52.5 µs 150 ns 50 ns *AC Conditions of Test: Input Rise and Fall Times (10% to 90%)..............20 ns Input Pulse Levels...................................0.45V to 2.4V Input Timing Reference Level...................0.8V to 2.0V Output Timing Reference Level................0.8V to 2.0V Notes: 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 µsec ± 5%. Atmel’s 27C516 Integrated Product Identification Code Pins Codes Manufacturer Device Type A0 015-08 O7 O6 O5 O4 O3 O2 O1 O0 0 1 0 0 0 1 0 1 0 1 1 1 1 0 1 0 1 1 Hex Data 0 001E 0 00F2 3-151 Ordering Information ICC (mA) tACC (ns) Active Standby 45 30 55 70 85 100 Ordering Code Package 0.1 AT27C516-45JC AT27C516-45VC 44J 40V Commercial (0°C to 70°C) 30 0.1 AT27C516-45JI AT27C516-45VI 44J 40V Industrial (-40°C to 85°C) 30 0.1 AT27C516-55JC AT27C516-55VC 44J 40V Commercial (0°C to 70°C) 30 0.1 AT27C516-55JI AT27C516-55VI 44J 40V Industrial (-40°C to 85°C) 30 0.1 AT27C516-70JC AT27C516-70VC 44J 40V Commercial (0°C to 70°C) 30 0.1 AT27C516-70JI AT27C516-70VI 44J 40V Industrial (-40°C to 85°C) 30 0.1 AT27C516-85JC AT27C516-85VC 44J 40V Commercial (0°C to 70°C) 30 0.1 AT27C516-85JI AT27C516-85VI 44J 40V Industrial (-40°C to 85°C) 30 0.1 AT27C516-10JC AT27C516-10VC 44J 40V Commercial (0°C to 70°C) 30 0.1 AT27C516-10JI AT27C516-10VI 44J 40V Industrial (-40°C to 85°C) Package Type 44J 44 Lead, Plastic J-Leaded Chip Carrier (PLCC) 40V 40 Lead, Plastic Thin Small Outline Package (TSOP) (10mm x 14mm) 3-152 AT27C516 Operation Range