Features • Fast Read Access Time – 70 ns • Low Power CMOS Operation • • • • • • • – 100 µA Max Standby – 30 mA Max Active at 5 MHz JEDEC Standard Packages – 32-lead, 600-mil PDIP – 32-lead PLCC – 32-lead TSOP 5V ± 10% Supply High Reliability CMOS Technology – 2000V ESD Protection – 200 mA Latchup Immunity Rapid™ Programming Algorithm – 100 µs/Byte (Typical) CMOS and TTL Compatible Inputs and Outputs Integrated Product Identification Code Commercial and Industrial Temperature Ranges 4-Megabit (512K x 8) OTP EPROM AT27C040 Description The AT27C040 chip is a low-power, high-performance, 4,194,304-bit one-time programmable read-only memory (OTP EPROM) organized as 512K by 8 bits. The AT27C040 requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 70 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems. TSOP Top View Pin Configurations O0 - O7 Outputs CE Chip Enable OE Output Enable PDIP Top View VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC A18 A17 A14 A13 A8 A9 A11 OE A10 CE 07 06 05 04 03 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OE A10 CE 07 06 05 04 03 GND 02 01 O0 A0 A1 A2 A3 PLCC Top View A12 A15 A16 VPP VCC A18 A17 Addresses 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A7 A6 A5 A4 A3 A2 A1 A0 O0 4 3 2 1 32 31 30 A0 - A18 A11 A9 A8 A13 A14 A17 A18 VCC VPP A16 A15 A12 A7 A6 A5 A4 5 6 7 8 9 10 11 12 13 29 28 27 26 25 24 23 22 21 14 15 16 17 18 19 20 Function 01 02 GND 03 04 05 06 Pin Name A14 A13 A8 A9 A11 OE A10 CE 07 0189F–EPROM–4/03 1 Atmel’s scaled CMOS technology provides low active power consumption, and fast programming. Power consumption is typically 8 mA in active mode and less than 10 µA in standby mode. The AT27C040 is available in a choice of industry standard JEDEC-approved one-time programmable (OTP) plastic PDIP, PLCC and TSOP packages. The device features two-line control (CE, OE) to eliminate bus contention in high-speed systems. Atmel’s AT27C040 has 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 100 µs/byte. 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. Switching 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 datasheet 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. Block Diagram 2 AT27C040 0189F–EPROM–4/03 AT27C040 Operating Modes Mode/Pin CE OE Ai Read VIL VIL Ai X(1) Output Disable X VIH X X High Z VIH X X X High Z Rapid Program VIL VIH Ai VPP DIN PGM Verify X VIL Ai VPP DOUT VIH VIH X VPP High Z X Identification Code Standby (2) PGM Inhibit (4) Product Identification Notes: 1. 2. 3. 4. VIL VIL VH(3) A9 = A0 = VIH or VIL A1 - A18 = VIL VPP Outputs DOUT X can be VIL or VIH. Refer to Programming Characteristics VH = 12.0 ± 0.5V. 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. 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 Voltage on A9 with Respect to Ground .........................................-2.0V to +14.0V *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. VPP Supply Voltage with Respect to Ground ..........................................-2.0V to +14.0V 3 0189F–EPROM–4/03 DC and AC Operating Conditions for Read Operation Operating Temperature (Case) Com. Ind. VCC Power Supply AT27C040-70 AT27C040-90 AT27C040-12 AT27C040-15 0°C - 70°C 0°C - 70°C 0°C - 70°C 0°C - 70°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% DC and Operating Characteristics for Read Operation Symbol Parameter Condition ILI Input Load Current Output Leakage Current ILO IPP1 (2) VPP (1) Read/Standby Current VCC1(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: 2.4 V 1. VCC must be applied simultaneously or before VPP, and removed simultaneously 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. AC Characteristics for Read Operation AT27C040 -70 Symbol Condition Address to Output Delay CE = OE = VIL 70 90 tCE(2) CE to Output Delay OE = VIL 70 tOE(2)(3) OE to Output Delay CE = VIL OE or CE High to Output Float, whichever occurred first tACC tDF (4)(5) tOH Note: 4 Output Hold from Address, CE or OE, whichever occurred first 0 Max Min -12 Parameter (3) Min -90 Max Units 120 150 ns 90 120 150 ns 30 35 35 40 ns 20 20 30 30 ns 0 Max Min -15 0 Max Min 0 ns 1. 2, 3, 4, 5 – see AC Waveforms for Read Operation AT27C040 0189F–EPROM–4/03 AT27C040 AC Waveforms for Read Operation(1) Notes: 1. 2. 3. 4. 5. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE. OE may be delayed up to tACC - tOE after the address is valid without impact on tACC. This parameter is only sampled and is not 100% tested. Output float is defined as the point when data is no longer driven. Input Test Waveforms and Measurement Levels Output Test Load 1.3V (1N914) OUTPUT PIN 3.3K CL Pin Capacitance f = 1 MHz, T = 25° C (1) Symbol Typ Max Units Conditions CIN 4 8 pF VIN = 0V COUT 8 12 pF VOUT = 0V Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested. 5 0189F–EPROM–4/03 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 AT27C040 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 Limits 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 VCC Supply Current (Program and Verify) IPP2 VPP Supply Current VID A9 Product Identification Voltage 6 Min Max Units ±10 µA -0.6 0.8 V 2.0 VCC + 0.7 V 0.4 V 2.4 CE = VIL 11.5 V 40 mA 20 mA 12.5 V AT27C040 0189F–EPROM–4/03 AT27C040 AC Programming Characteristics TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V Limits (1) Min Symbol Parameter Test Conditions tAS Address Setup Time tOES OE Setup Time Input Rise and Fall Times: (10% to 90%) 20 ns tDS Data Setup Time tAH Address Hold Time tDH Data Hold Time tDFP OE High to Output Float Delay(2) tVPS VPP Setup Time tVCS VCC Setup Time Input Pulse Levels: 0.45V to 2.4V (3) CE Program Pulse Width tOE Data Valid from OE(2) tPRT VPP Pulse Rise Time During Programming Units 2 µs 2 µs 2 µs 0 µs 2 µs 0 Output Timing Reference Level: 0.8V to 2.0V tPW Notes: Input Timing Reference Level: 0.8V to 2.0V Max 130 ns 2 µs 2 µs 95 105 µs 150 ns 50 ns 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 100 µsec ± 5%. Atmel’s AT27C040 Integrated Product Identification Code Pins Codes A0 O7 O6 O5 O4 O3 O2 O1 O0 Hex Data Manufacturer 0 0 0 0 1 1 1 1 0 1E Device Type 1 0 0 0 0 1 0 1 1 0B 7 0189F–EPROM–4/03 Rapid Programming Algorithm 8 A 100 µs CE 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 100 µs CE pulse without verification. Then a verification/reprogramming loop is executed for each address. In the event a byte fails to pass verification, up to 10 successive 100 µs pulses are applied with a verification after each pulse. If the byte fails to verify after 10 pulses have been applied, the part is considered failed. After the byte 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 bytes are read again and compared with the original data to determine if the device passes or fails. AT27C040 0189F–EPROM–4/03 AT27C040 Ordering Information ICC (mA) tACC (ns) Active Standby Ordering Code Package 70 30 0.1 AT27C040-70JC AT27C040-70PC AT27C040-70TC 32J 32P6 32T Commercial (0° C to 70° C) 30 0.1 AT27C040-70JI AT27C040-70PI AT27C040-70TI 32J 32P6 32T Industrial (-40° C to 85° C) 30 0.1 AT27C040-90JC AT27C040-90PC AT27C040-90TC 32J 32P6 32T Commercial (0° C to 70° C) 30 0.1 AT27C040-90JI AT27C040-90PI AT27C040-90TI 32J 32P6 32T Industrial (-40° C to 85° C) 30 0.1 AT27C040-12JC AT27C040-12PC AT27C040-12TC 32J 32P6 32T Commercial (0° C to 70° C) 30 0.1 AT27C040-12JI AT27C040-12PI AT27C040-12TI 32J 32P6 32T Industrial (-40° C to 85° C) 30 0.1 AT27C040-15JC AT27C040-15PC AT27C040-15TC 32J 32P6 32T Commercial (0° C to 70° C) 30 0.1 AT27C040-15JI AT27C040-15PI AT27C040-15TI 32J 32P6 32T Industrial (-40° C to 85° C) 90 120 150 Operation Range Package Type 32J 32-lead, Plastic J-leaded Chip Carrier (PLCC) 32P6 32-lead, 0.600" Wide, Plastic Dual Inline Package (PDIP) 32T 32-lead, Plastic Thin Small Outline Package (TSOP) 9 0189F–EPROM–4/03 Package Information 32J – PLCC 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER 1.14(0.045) X 45˚ 0.318(0.0125) 0.191(0.0075) E1 E2 B1 E B e A2 D1 A1 D A 0.51(0.020)MAX 45˚ MAX (3X) COMMON DIMENSIONS (Unit of Measure = mm) D2 Notes: 1. This package conforms to JEDEC reference MS-016, Variation AE. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is .010"(0.254 mm) per side. Dimension D1 and E1 include mold mismatch and are measured at the extreme material condition at the upper or lower parting line. 3. Lead coplanarity is 0.004" (0.102 mm) maximum. SYMBOL MIN NOM MAX A 3.175 – 3.556 A1 1.524 – 2.413 A2 0.381 – – D 12.319 – 12.573 D1 11.354 – 11.506 D2 9.906 – 10.922 E 14.859 – 15.113 E1 13.894 – 14.046 E2 12.471 – 13.487 B 0.660 – 0.813 B1 0.330 – 0.533 e NOTE Note 2 Note 2 1.270 TYP 10/04/01 R 10 2325 Orchard Parkway San Jose, CA 95131 TITLE 32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC) DRAWING NO. REV. 32J B AT27C040 0189F–EPROM–4/03 AT27C040 32P6 – PDIP D PIN 1 E1 A SEATING PLANE A1 L B B1 e E 0º ~ 15º C COMMON DIMENSIONS (Unit of Measure = mm) REF MIN NOM MAX A – – 4.826 A1 0.381 – – D 41.783 – 42.291 E 15.240 – 15.875 E1 13.462 – 13.970 B 0.356 – 0.559 B1 1.041 – 1.651 L 3.048 – 3.556 C 0.203 – 0.381 eB 15.494 – 17.526 SYMBOL eB Note: 1. Dimensions D and E1 do not include mold Flash or Protrusion. Mold Flash or Protrusion shall not exceed 0.25 mm (0.010"). e NOTE Note 1 Note 1 2.540 TYP 09/28/01 R 2325 Orchard Parkway San Jose, CA 95131 TITLE 32P6, 32-lead (0.600"/15.24 mm Wide) Plastic Dual Inline Package (PDIP) DRAWING NO. 32P6 REV. B 11 0189F–EPROM–4/03 32T – TSOP PIN 1 0º ~ 8º c Pin 1 Identifier D1 D L b e L1 A2 E A GAGE PLANE SEATING PLANE COMMON DIMENSIONS (Unit of Measure = mm) A1 MIN NOM MAX A – – 1.20 A1 0.05 – 0.15 A2 0.95 1.00 1.05 D 19.80 20.00 20.20 D1 18.30 18.40 18.50 Note 2 E 7.90 8.00 8.10 Note 2 L 0.50 0.60 0.70 SYMBOL Notes: 1. This package conforms to JEDEC reference MO-142, Variation BD. 2. Dimensions D1 and E do not include mold protrusion. Allowable protrusion on E is 0.15 mm per side and on D1 is 0.25 mm per side. 3. Lead coplanarity is 0.10 mm maximum. L1 0.25 BASIC b 0.17 0.22 0.27 c 0.10 – 0.21 e NOTE 0.50 BASIC 10/18/01 R 12 2325 Orchard Parkway San Jose, CA 95131 TITLE 32T, 32-lead (8 x 20 mm Package) Plastic Thin Small Outline Package, Type I (TSOP) DRAWING NO. REV. 32T B AT27C040 0189F–EPROM–4/03 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131 Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131 Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel: (33) 2-40-18-18-18 Fax: (33) 2-40-18-19-60 ASIC/ASSP/Smart Cards 1150 East Cheyenne Mtn. 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