AT27C040-15RI

AT27C040 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 450-mil SOIC (SOP) 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. 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. (continued) Pin Configurations Pin Name Function A0 - A18 Addresses O0 - O7 Outputs CE Chip Enable OE Output Enable PDIP, SOIC Top View PLCC Top View TSOP Top View 0189E-A–7/97 1 The AT27C040 is available in a choice of industry standard JEDEC-approved one-time programmable (OTP) plastic PDIP, PLCC, SOIC (SOP), 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. 2 AT27C040 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 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. AT27C040 Block Diagram Operating Modes Mode/Pin CE OE Ai Read VIL VIL Ai X(1) DOUT X VIH X X High Z VIH X X X High Z VIL VIH Ai VPP DIN PGM Verify X VIL Ai VPP DOUT PGM Inhibit VIH VIH X VPP High Z VIL A9 = VH(3) A0 = VIH or VIL A1 - A18 = VIL X Identification Code Output Disable Standby Rapid Program(2) Product Identification Notes: (4) VIL VPP Outputs 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 Identificaton 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 (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. 3 DC and AC Operating Conditions for Read Operation AT27C040 -70 -90 -12 -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% Com. Operating Temperature (Case) Ind. VCC Power Supply DC and Operating Characteristics for Read Operation Symbol Paramter Condition ILI Input Load Current ILO IPP1 (2) Max Units VIN = 0V to VCC ±1 µA Output Leakage Current VOUT = 0V to VCC ±5 µA VPP(1) 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 Read/Standby Current Min ISB VCC1(1) Standby Current 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 Parameter Condition tACC(3) 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 tDF(4)(5) OE or CE High to Output Float, whichever occurred first tOH Output Hold from Address, CE or OE, whichever occurred first 4 2, 3, 4, 5 - see AC Waveforms for Read Operation AT27C040 0 Max Min -12 Symbol Note: 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 AT27C040 AC Waveforms for Read Operation(1) Notes: 1. Tiiming measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified. 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. Input Test Waveforms and Measurement Levels Output Test Load Pin Capacitance (f = 1 MHz, T = 25°C) (1) Typ Max Units CIN 4 8 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. 5 Programming Waveforms(1) Notes: 1. The Input Timing Reference is 0.8V for V IL 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 supress spurious voltage transients. DC Programming Characteristics TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V Limits 6 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 AT27C040 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 AC Programming Characteristics TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V Limits Test Conditions(1) Symbol Parameter tAS Address Setup Time tOES OE Setup Time 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 Rise and Fall Times (10% to 90%) 20ns Input Pulse Levels 0.45V to 2.4V (3) Output Timing Reference Level 0.8V to 2.0V CE Program Pulse Width tOE Data Valid from OE(2) tPRT VPP Pulse Rise Time During Programming Max Units 2 µs 2 µs 2 µs 0 µs 2 µs 0 Input Timing Reference Level 0.8V to 2.0V tPW Notes: Min 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 27C040 Integrated Product Identification Code Pins Codes Hex Data A0 O7 O6 O5 O4 O3 O2 O1 O0 Manufacturer 0 0 0 0 1 1 1 1 0 1E Device Type 1 0 0 0 0 1 0 1 1 0B 7 Rapid Programming Algorithm 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 8 AT27C040 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 Ordering Information ICC (mA) tACC (ns) Active Standby 70 30 0.1 30 90 30 30 120 30 30 150 30 30 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Ordering Code Package AT27C040-70JC 32J AT27C040-70PC 32P6 AT27C040-70RC 32R AT27C040-70TC 32T AT27C040-70JI 32J AT27C040-70PI 32P6 AT27C040-70RI 32R AT27C040-70TI 32T AT27C040-90JC 32J AT27C040-90PC 32P6 AT27C040-90RC 32R AT27C040-90TC 32T AT27C040-90JI 32J AT27C040-90PI 32P6 AT27C040-90RI 32R AT27C040-90TI 32T AT27C040-12JC 32J AT27C040-12PC 32P6 AT27C040-12RC 32R AT27C040-12TC 32T AT27C040-12JI 32J AT27C040-12PI 32P6 AT27C040-12RI 32R AT27C040-12TI 32T AT27C040-15JC 32J AT27C040-15PC 32P6 AT27C040-15RC 32R AT27C040-15TC 32T AT27C040-15JI 32J AT27C040-15PI 32P6 AT27C040-15RI 32R AT27C040-15TI 32T Operation Range Commercial (0°C to 70°C) Industrial (-40°C to 85°C) Commercial (0°C to 70°C) Industrial (-40°C to 85°C) Commercial (0°C to 70°C) Industrial (-40°C to 85°C) Commercial (0°C to 70°C) Industrial (-40°C to 85°C) Package Type 32J 32-Lead, Plastic J-Leaded Chip Carrier (PLCC) 32P6 32-Lead, 0.600" Wide, Plastic Dual Inline Package (PDIP) 32R 32-Lead, 0.450" Wide, Plastic Gull Wing Small Outline (SOIC) 32T 32-Lead, Plastic Thin Small Outline Package (TSOP) 9